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    <id>65775</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>14</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>264</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
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    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Rationalizing the microstructure interplay in the thermal conductivity of a metal matrix composite via 3D imaged-based finite element modeling</title>
    <abstract language="eng">The thermal performance of metallic brake lining materials plays a decisive role in the safety and efficiency of high-speed railway braking systems. In this study, a combined experimental–numerical methodology is developed to rationalize the influence of microstructural constituents on the effective thermal conductivity of a sintered metal matrix composite (MMC) brake lining. Laser Flash Analysis (LFA) is first employed to determine the thermal conductivity of some individual constituents as well as that of reference composites. X-ray CT (XCT) provides three-dimensional reconstructions of the microstructure that are subsequently used to generate realistic image-based finite element meshes. The unknown thermal conductivities of the graphite particles are identified through a Finite Element Model Updating (FEMU) scheme, where numerical predictions of the effective conductivity are iteratively matched to LFA measurements. These findings highlight the strong anisotropy of graphite particles and their favored orientation after compaction, which governs heat transport pathways. Moreover, the presence of intra-, inter-, and inter-connectivity porosity within and around the graphite is shown to significantly reduce the transverse conductivity, rationalizing the discrepancy between the FEM predictions and experimental values. Overall, the proposed approach demonstrates how combining LFA, XCT and FEMU enables the identification of constituent-level conductivities and provides new insights into the microstructure/thermal-property relationships of MMC brake linings.</abstract>
    <parentTitle language="eng">International Journal of Heat and Mass Transfer</parentTitle>
    <identifier type="url">https://www.sciencedirect.com/science/article/pii/S0017931026004114?via%3Dihub</identifier>
    <identifier type="issn">0017-9310</identifier>
    <identifier type="doi">10.1016/j.ijheatmasstransfer.2026.128735</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-657756</identifier>
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    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Itziar Serrano-Munoz</author>
    <author>Philippe Dufrenoy</author>
    <author>Vincent Magnier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Brake lining material</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thermal conductivity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Graphite particles</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser flash analysis (LFA)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray computed tomography (XCT)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>3D finite element model updating (FEMU)</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.5 Röntgenbildgebung</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="themenfelder" number="">Degradationsmechanismen</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/65775/Serrano-Munoz_2026_thermal_properties_of_MMC.pdf</file>
  </doc>
  <doc>
    <id>65756</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>16</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>article</type>
    <publisherName>The Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">An operando spectroscopic examination of the influence of trace humidity on interdigital back contact metal halide perovskite solar cells</title>
    <abstract language="eng">Controlling trace humidity is vital for both the fabrication and long-term stability of metal halide perovskite (MHP) solar cells. Relevant humidity levels are typically below 10 ppmV, especially in glovebox-based processing and in well-encapsulated devices. Even minute amounts during fabrication can influence crystallization, introducing defects and lowering efficiency. Over time, humidity accelerates degradation of the perovskite layer and internal interfaces, ultimately reducing operational lifetime. Probing these effects at low concentrations under operando conditions is therefore essential for advancing device performance and durability. In this work, we employed a high-precision transfer standard dew point hygrometer to investigate humidity levels between 5 and 35 ppmV in non-encapsulated MHP solar cells. To permit unobstructed water migration during operation, we fabricated interdigital back contact devices. Operando measurements revealed water transport through the perovskite layer and enabled quantification of outgassing. Under trace-humidified conditions, devices exhibited initial charge-carrier quenching, followed by gradual recovery. Notably, the photocurrent response to humidified nitrogen demonstrated that the MHP layer behaves fully reversibly within the explored timescale and across the investigated humidity levels and conditions. These findings establish a systematic operando framework for examining extrinsic stressors in perovskites and highlight opportunities for assessing passivation strategies.</abstract>
    <parentTitle language="eng">Journal of Materials Chemistry A</parentTitle>
    <identifier type="doi">10.1039/D6TA01295G</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-657560</identifier>
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    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Mehmet Emin Bayat</author>
    <author>Edgar R. Nandayapa</author>
    <author>Carlo Tiebe</author>
    <author>Eva L. Unger</author>
    <author>Emil J. W. List-Kratochvil</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal halide perovskite</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>IBC solar cells</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>In operando</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Extrinsic stressors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fabrication and encapsulation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Trace humidity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Two-site Stern-Volmer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Charge-carrier quenching</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.6 Anorganische Referenzmaterialien und Gasanalytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.1 Sensorik, mess- und prüftechnische Verfahren</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="themenfelder" number="">Degradationsmechanismen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/65756/An_operando_spectroscopic_examination_IBC.pdf</file>
    <file>https://opus4.kobv.de/opus4-bam/files/65756/SI_An_operando_spectroscopic_examination.pdf</file>
  </doc>
  <doc>
    <id>65715</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>15</pageFirst>
    <pageLast>23</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>41</volume>
    <type>article</type>
    <publisherName>Faculty of Civil Engineering and Architecture, University of Nis</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Concrete performance assessment based on gas permeability testing</title>
    <abstract language="eng">Designing of structures with medium to high performance requirements is a demanding and challenging engineering task. Depending on the location and type of the planned structure, various pre-testing methods should be applied. In recent decades, there has been a focus on the durability of concrete. Concrete is a porous material with a relatively thin protective cover layer, making it vulnerable to the penetration of external agents such as carbon dioxide. Gas permeability testing (kT), a relatively new non-destructive method (NDT), should therefore be considered. This paper presents results of gas permeability testing on a set of larger concrete samples made under controlled conditions with some paroperty variations order to find initial kT parameters important for quality assurance.</abstract>
    <parentTitle language="eng">Journal of the Faculty of Civil Engineering and Architecture</parentTitle>
    <identifier type="issn">3009-4674</identifier>
    <identifier type="doi">10.62683/ZRGAF41.2</identifier>
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    <author>Jelena Bijeljic</author>
    <author>Ernst Niederleithinger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Concrete</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Permeability</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Durability</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Torrent Tester</value>
    </subject>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Infrastruktur</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Circular Economy</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="themenfelder" number="">Green Intelligent Building</collection>
    <collection role="themenfelder" number="">Verkehrsinfrastrukturen</collection>
  </doc>
  <doc>
    <id>65687</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>14</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>article</type>
    <publisherName>Springer Science and Business Media LLC</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Revealing the Structural Transformation of Biopolymer-Modified Clay Materials Through Microtomography and Hygroscopic Analysis</title>
    <abstract language="eng">This study focuses on the structural assessment of unfired clay materials (UCM) treated with different biopolymers using microtomography (microCT) and hygroscopic analysis. It addresses a significant research gap, as the analysis of hygroscopic properties in biopolymer-modified clays remains limited in the literature, while microCT investigations of such materials have been scarcely explored. The clay materials were modified using aqueous gelled biopolymer solutions of starch, alginate, and chitosan, each prepared under processing conditions adapted to their chemical characteristics and solubility: starch was dissolved in hot water, alginate in cold water, and chitosan in a slight acid solution. Moisture adsorption of the clay-biopolymer materials (CBM) increased up to 32.2%, as observed in the CBM, modified with a 7.5% alginate-based solution. Sorption hysteresis analysis revealed an increase in the hysteresis rate from 0.30% to 0.76–1.01% in CBMs, indicating that biopolymer modification enhanced the structural complexity of the clay matrix and promoted additional molecular interactions with water molecules within the CBM. MicroCT results demonstrated that within the CBM, biopolymers can function either as surface-coating agents (starch and alginate) or as organic clusters within the clay structure (chitosan). The obtained results highlight that biopolymer incorporation significantly enhances the hygroscopic buffering capacity of clay materials, offering a pathway toward sustainable building composites that can be applied in humidity-regulating finishes, eco-friendly construction blocks, and heritage conservation, where both moisture control and structural cohesion are essential.</abstract>
    <parentTitle language="eng">International Journal of Precision Engineering and Manufacturing-Green Technology</parentTitle>
    <identifier type="issn">2288-6206</identifier>
    <identifier type="doi">10.1007/s40684-026-00865-x</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-656872</identifier>
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    <enrichment key="date_peer_review">23.03.2026</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Yahor Trambitski</author>
    <author>Olga Kizinievič</author>
    <author>Viktor Kizinievič</author>
    <author>Lina Pavasaryte</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Unfired clay material</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro computed tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Clay-biopolymer material</value>
    </subject>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.5 Röntgenbildgebung</collection>
    <collection role="themenfelder" number="">Infrastruktur</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="themenfelder" number="">Green Intelligent Building</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/65687/s40684-026-00865-x.pdf</file>
  </doc>
  <doc>
    <id>65602</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>19</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>16</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Evaluation of ultrasonic signals collected from laboratory concrete specimens: Preprocessing and analysis with coda wave interferometry</title>
    <abstract language="eng">Efficient maintenance of infrastructure relies on monitoring and assessment of its condition. New technologies and methods thereby enable a deeper understanding of the materials used and of the structures built. Coda Wave Interferometry (CWI) is currently explored for continuous monitoring of reinforced concrete structures as well as material testing. This ultrasound-based method is sensitive to even small material alterations and therefore suitable for the detection of initial damage stages. Herein, a step-by-step procedure for the evaluation of ultrasonic signals with CWI methods is presented. The described procedure is proposed for ultrasonic signals collected with embedded ultrasonic transducers with a center frequency of 50 kHz to 70 kHz from prism-shaped concrete specimen with dimensions of 400 mm x 100 mm x 100 mm. The raw ultrasonic signal, preprocessing and CWI analysis are described and influences of parameters within the analysis are discussed. The presented procedure allows systematic and comparable analysis of ultrasonic signals generated with similar conditions and therefore contributes to the application of CWI methods for structural health monitoring and material testing.</abstract>
    <parentTitle language="eng">MethodsX</parentTitle>
    <identifier type="issn">2215-0161</identifier>
    <identifier type="doi">10.1016/j.mex.2026.103811</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-656027</identifier>
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    <enrichment key="date_peer_review">02.03.2026</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Eva Jägle</author>
    <author>Rujika Tuladhar</author>
    <author>Ernst Niederleithinger</author>
    <author>Niklas Epple</author>
    <author>Camila Andrea Sanchez Trujillo</author>
    <author>Christoph Gehlen</author>
    <author>Jithender J. Timothy</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ultrasound</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Concrete</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Coda wave interferometry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural health monitoring</value>
    </subject>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Infrastruktur</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="themenfelder" number="">Verkehrsinfrastrukturen</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/65602/1-s2.0-S2215016126000282-main.pdf</file>
  </doc>
  <doc>
    <id>65579</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>543</pageFirst>
    <pageLast>550</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>33</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">X-ray computed tomography scanning schemes and reconstruction capabilities at the BAMline (BESSY II)</title>
    <abstract language="eng">The BAMline at the BESSY II synchrotron (Berlin, Germany) is a multipurpose beamline that is used for computed tomography, among other techniques. For more than 20 years it has been used in various scientific fields to access and analyze internal structural features such as porosity, cracks or delamination. The general trend of tomographic X-ray imaging is moving towards in situ and operando studies to access the above-mentioned features under the most realistic conditions. This article presents the X-ray computed tomography (XCT) capabilities and the software suite, such as live reconstruction available to imaging users. Direct XCT reconstruction plays an important role in the quality control of the performed experiments and is particularly crucial for in situ and operando experiments. The BAMline now offers a sequence-based step-scan XCT that enables preview reconstruction during the scan to gain early insight into the scanned sample even while the scan is in progress. In addition, the sequence-based scheme includes lateral shifts, thereby mitigating ring artifacts and improving image quality. Finally, since XCT scan parameters, such as sample–detector distance and beam energy, are of utmost importance, we devised calculation software allowing control of monochromators to set the desired beam spectrum.</abstract>
    <parentTitle language="eng">Journal of Synchrotron Radiation</parentTitle>
    <identifier type="doi">10.1107/S1600577526001177</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-655792</identifier>
    <identifier type="issn">1600-5775</identifier>
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    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Henning Markötter</author>
    <author>Michael Sintschuk</author>
    <author>Giovanni Bruno</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Computed tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Preview reconstruction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CT scan scheme</value>
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    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Software workflow</value>
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  <doc>
    <id>65573</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
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    <type>article</type>
    <publisherName>Wiley-VCH GmbH</publisherName>
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    <title language="eng">The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282</title>
    <abstract language="eng">The elevated temperature low cycle fatigue life of additively manufactured HAYNES 282 superalloy from conventional 40 µm layer thickness process parameters was compared with that of high‐productivity 80 µm layer thickness process parameters. Wrought 282 alloy was also tested in parallel for comparison. The 40 µm process parameters produced fatigue life between 1400 and 1700 cycles to failure, the 80 µm process parameter specimens failed after ≈1200 cycles, and the wrought alloy reached 1350 cycles to failure. Microstructure investigations did not reveal systematic differences in phase constituents or grain structure between 40 and 80 µm processed 282 alloy. While both process parameters produced porosity of less than 0.05% by volume, high‐resolution X‐ray computed tomography showed the occurrence of large aspect ratio lack of fusion defects in the 80 µm material. These defects were also identified on fracture surfaces and could be related to the accelerated initiation and propagation of cracks, especially when oriented perpendicular to the load axis in samples built parallel to the building direction. The results emphasize the criticality of seemingly minor variations in defect characteristics on performance in cyclic loading conditions for high strength alloys.</abstract>
    <parentTitle language="eng">Advanced Engineering Materials</parentTitle>
    <identifier type="issn">1438-1656</identifier>
    <identifier type="doi">10.1002/adem.202502048</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-655732</identifier>
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    <author>Abdul Shaafi Shaikh</author>
    <author>Ahmed Fardan</author>
    <author>Tatiana Mishurova</author>
    <author>Eduard Hryha</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Additive manufacturing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser powder bed fusion</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PBF-LB</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fatigue</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EBSD</value>
    </subject>
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  <doc>
    <id>65567</id>
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    <publishedYear>2026</publishedYear>
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    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>10</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>246</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace>Niederlande</publisherPlace>
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    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
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    <title language="eng">Influence of contour parameters on the surface roughness of fine channels produced by powder bed fusion-laser beam</title>
    <abstract language="eng">Surface roughness strongly influences the performance of fine internal channels in additively manufactured components. This study investigates how contour process parameters affect the surface finish of 1 mm-diameter channels produced by powder bed fusion–laser beam (PBF-LB). Five contour parameter sets with progressively increasing laser energy density (LED) were applied, while keeping infill parameters constant. Surface roughness was evaluated using surface profilometry, X-ray computed tomography (XCT), and optical microscopy (OM). Profilometry and OM provided localized measurements, whereas XCT captured full-channel roughness along the build direction. Results show that increasing LED initially reduces surface roughness due to improved melting and removal of partially fused particles, reaching optimal smoothness at an intermediate LED. Further LED increase causes roughness to rise again, attributed to balling and dross formation. Optical cross-sections depicted these trends, and XCT measurements closely matched profilometry data. The findings in this study highlight a trade-off between surface quality and dimensional accuracy, as higher LEDs improve smoothness but reduce channel diameter. This work establishes an optimal contour LED range for minimizing as-built surface roughness in fine internal channels, which can enhance the functional performance of PBF-LB components in aerospace, medical, and energy applications.</abstract>
    <parentTitle language="eng">Vacuum</parentTitle>
    <identifier type="issn">0042-207X</identifier>
    <identifier type="doi">10.1016/j.vacuum.2026.115085</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-655677</identifier>
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    <enrichment key="date_peer_review">25.02.2026</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Jitendar Kumar Tiwari</author>
    <author>Bala Malladi</author>
    <author>Tatiana Mishurova</author>
    <author>Tobias Fritsch</author>
    <author>Lars Nyborg</author>
    <author>Yu Cao</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Additive  manufacturing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PBF-LB</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Surface roughness</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Computed tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Optical tomography</value>
    </subject>
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    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="themenfelder" number="">Additive Fertigung</collection>
    <file>https://opus4.kobv.de/opus4-bam/files/65567/1-s2.0-S0042207X26000229-main.pdf</file>
  </doc>
  <doc>
    <id>65560</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>14</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>268</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace>Amsterdam, Netherlands</publisherPlace>
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    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
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    <title language="eng">Embedded PZT sensors for combined viboacoustic sensing of  concrete structures</title>
    <abstract language="eng">Accurate assessment of damage in concrete structures requires monitoring techniques that can capture both global stiffness degradation and local cracking processes. Existing structural health monitoring approaches typically rely on separate sensors for vibration measurements and acoustic emission (AE) monitoring, while conventional surface-mounted devices often suffer from poor and variable coupling. This study presents an embedded piezoelectric (PZT) sensor developed for dual mode vibroacoustic monitoring in concrete structures. &#13;
The sensor is cast within the concrete matrix to improve mechanical coupling and enable robust measurement of structural response during damage evolution. Dual-mode monitoring is achieved through sequential operation of &#13;
the same embedded sensor in two distinct modes passive acoustic emission (AE) monitoring during fracture loading and impulse-excited vibration testing conducted before and after fracture test. Benchmarking experiments include comparison with commercial accelerometers and AE sensors, confirming that the embedded configuration enhances high-frequency sensitivity and coupling performance. The fracture process is interpreted by correlating AE activity with Digital Image Correlation (DIC)-based crack kinematics, enabling zone-wise understanding of crack development. The vibration response is interpreted using a stiffness-reduction framework consistent with hinge-type crack formation, explaining the observed modal-frequency reduction and in crease in damping. Electromechanical impedance measurements quantify sensor–matrix interaction, highlighting the role of epoxy-mediated impedance matching. Overall, the results demonstrate that the proposed embedded sensor provides a unified platform for validated AE-vibration sensing, offering a promising approach for integrated structural health monitoring of concrete infrastructure</abstract>
    <parentTitle language="eng">Measurement</parentTitle>
    <identifier type="doi">10.1016/j.measurement.2026.120690</identifier>
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    <author>Amarteja Kocherla</author>
    <author>Murali Duddi</author>
    <author>Subramaniam Kolluru</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Vibroacoustic sensor</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Embedded PZT sensor</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Crack dynamics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>DIC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Concrete</value>
    </subject>
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    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
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    <id>65533</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>14</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3</issue>
    <volume>29</volume>
    <type>article</type>
    <publisherName>Wiley</publisherName>
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    <belongsToBibliography>1</belongsToBibliography>
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    <title language="eng">Modeling Temperature Responses of a Wind Turbine Blade Section Under Climate Chamber Conditions – Part 1: Challenges for FEM Simulations</title>
    <abstract language="eng">The rapid expansion of wind energy infrastructure over the past 20–30 years has led up to a situation where advanced non‐destructive testing (NDT) technologies are the need‐of‐the‐hour, not only for new wind turbine blades (WTBs) that are being installed, but also for older infrastructure which is reaching their designed lifetime. NDT technologies that improve both the quality as well as reduce the time required for the inspection are sought after, and one such example is passive infrared thermography (IRT). For passive IRT to provide significant information/insight into the integrity of the WTB, there needs to exist certain thermal contrast to both visualize and distinguish between features in WTB. These features could be surface features, subsurface structure or defects. The temperature variations due to air temperature fluctuations and the sun assist (passively) to obtain the necessary thermal contrast. To better understand the thermal response of composite structures such as WTBs, a validation study was conducted using a WTB section subjected to controlled temperature transients within a climate chamber, without external irradiation. Infrared measurements were recorded using a thermographic camera, and the same specimen was modeled using finite element methods (FEM) in COMSOL Multiphysics. While a direct validation of the simulation is limited due to transient and unmeasured variables in the experimental data, qualitative comparison provides valuable insight into the applicability of FEM for predicting thermal behavior in passive IRT scenarios. This article represents the first part of a two‐part study, focusing on the FEM modeling approach and associated challenges. The second part will address the experimental investigation in more detail, with an emphasis on thermal contrast behavior under varied transient conditions.</abstract>
    <parentTitle language="eng">Wind Energy</parentTitle>
    <identifier type="issn">1095-4244</identifier>
    <identifier type="doi">10.1002/we.70102</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-655330</identifier>
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    <enrichment key="date_peer_review">09.03.2026</enrichment>
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    <author>Somsubhro Chaudhuri</author>
    <author>Rainer Krankenhagen</author>
    <author>Ivana Lapšanská</author>
    <author>Michael Stamm</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Finite element modeling</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Non- destructive testing</value>
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    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Passive infrared thermography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thermal contrast</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Wind turbine blades</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.3 Thermografische Verfahren</collection>
    <collection role="themenfelder" number="">Energie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
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    <collection role="themenfelder" number="">Windenergie</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/65533/Wind Energy 2026 Chaudhuri.pdf</file>
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