6 Materialchemie
Filtern
Dokumenttyp
- Zeitschriftenartikel (862)
- Vortrag (849)
- Posterpräsentation (348)
- Forschungsdatensatz (89)
- Beitrag zu einem Tagungsband (43)
- Sonstiges (21)
- Forschungsbericht (17)
- Buchkapitel (13)
- Beitrag zu einem Sammelband (10)
- Preprint (8)
Sprache
- Englisch (2098)
- Deutsch (186)
- Mehrsprachig (4)
- Spanisch (2)
Schlagworte
- Nanoparticles (173)
- SAXS (121)
- Mechanochemistry (110)
- XPS (104)
- Laser-induced periodic surface structures (LIPSS) (69)
- X-ray scattering (65)
- Electron microscopy (62)
- Microplastics (61)
- SEM (59)
- Mikroplastik (58)
Organisationseinheit der BAM
- 6 Materialchemie (2290)
- 6.3 Strukturanalytik (633)
- 6.1 Oberflächen- und Dünnschichtanalyse (623)
- 6.6 Physik und chemische Analytik der Polymere (514)
- 6.2 Material- und Oberflächentechnologien (244)
- 6.5 Synthese und Streuverfahren nanostrukturierter Materialien (229)
- 6.0 Abteilungsleitung und andere (211)
- 1 Analytische Chemie; Referenzmaterialien (136)
- 6.7 Materialsynthese und Design (111)
- 4 Material und Umwelt (90)
- 7 Bauwerkssicherheit (74)
- 5 Werkstofftechnik (68)
- 4.1 Biologische Materialschädigung und Referenzorganismen (56)
- 9 Komponentensicherheit (44)
- 1.2 Biophotonik (41)
- 7.5 Technische Eigenschaften von Polymerwerkstoffen (41)
- 8 Zerstörungsfreie Prüfung (41)
- 5.1 Mikrostruktur Design und Degradation (32)
- 6.4 Materialinformatik (31)
- 1.4 Prozessanalytik (28)
- 7.4 Baustofftechnologie (25)
- 1.9 Chemische und optische Sensorik (24)
- 4.2 Material-Mikrobiom Wechselwirkungen (24)
- 5.4 Multimateriale Fertigungsprozesse (24)
- 9.5 Tribologie und Verschleißschutz (22)
- 9.0 Abteilungsleitung und andere (20)
- 1.8 Umweltanalytik (19)
- VP Vizepräsident (18)
- VP.1 eScience (18)
- 8.5 Röntgenbildgebung (14)
- 1.7 Organische Spuren- und Lebensmittelanalytik (12)
- 1.1 Anorganische Spurenanalytik (11)
- 1.3 Instrumentelle Analytik (11)
- 1.5 Proteinanalytik (11)
- P Präsident (11)
- 8.6 Faseroptische Sensorik (10)
- 1.0 Abteilungsleitung und andere (9)
- 3 Gefahrgutumschließungen; Energiespeicher (8)
- 8.1 Sensorik, mess- und prüftechnische Verfahren (8)
- 4.3 Schadstofftransfer und Umwelttechnologien (7)
- 7.6 Korrosion und Korrosionsschutz (7)
- 4.0 Abteilungsleitung und andere (6)
- 8.0 Abteilungsleitung und andere (6)
- 8.4 Akustische und elektromagnetische Verfahren (6)
- P.0 Präsident und andere (6)
- PST Präsidiale Stabsstelle (6)
- 5.0 Abteilungsleitung und andere (5)
- 5.6 Glas (5)
- 9.2 Versuchsanlagen und Prüftechnik (5)
- 5.3 Polymere Verbundwerkstoffe (4)
- 1.6 Anorganische Referenzmaterialien (3)
- 3.1 Sicherheit von Gefahrgutverpackungen und Batterien (3)
- 3.2 Gefahrguttanks und Unfallmechanik (3)
- 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung (3)
- 3.6 Elektrochemische Energiematerialien (2)
- 5.2 Metallische Hochtemperaturwerkstoffe (2)
- 7.1 Baustoffe (2)
- 8.3 Thermografische Verfahren (2)
- 2 Prozess- und Anlagensicherheit (1)
- 2.1 Sicherheit von Energieträgern (1)
- 4.5 Kunst- und Kulturgutanalyse (1)
- 5.5 Materialmodellierung (1)
- 8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen (1)
- 9.4 Integrität von Schweißverbindungen (1)
- MP Mitglied des Präsidiums (1)
- MP.0 Mitglied des Präsidiums und andere (1)
- S Qualitätsinfrastruktur (1)
- S.2 Digitalisierung der Qualitätsinfrastruktur (1)
Paper des Monats
- ja (19)
Laser material processing is an emerging technology that generates surface functionalities on the basis of optical, mechanical, or chemical properties. In the form of laser surface texturing (LST), it has attracted a remarkable amount of research to tailor surface properties towards various tribological applications. The main advantages of this single-step, laser-based technology are the contactless machining, featuring a high flexibility, efficiency, and speed, along with the excellent quality of the processed products. LST can be applied precisely localized to sub-micrometric areas, but, via laser beam scanning, it is also feasible for structuring large surface areas at the square meter size.
This Special Issue focuses on the latest developments concerning the tribological performance of laser-generated periodic surface nano- and microstructures and their applications. This includes the laser-based processing of different surface patterns, such as “self-organized” laser-induced periodic surface structures (LIPSS, ripples), grooves, micro-spikes, hierarchical hybrid nano-/micro-structures, microfeatures generated by direct laser interference patterning (DLIP), or even dimples or other topographic geometries shaped by direct laser modification or ablation. The applications of these periodically nano- and micro-patterned surfaces may improve the lubricated or non-lubricated tribological performance of surfaces in conformal and even non-conformal contact through a reduction of wear, a variation of the coefficient of friction, altered load carrying capacity, etc., resulting in energy saving, improved reliability, increased lifetimes as well as durability, leading in turn to extended maintenance intervals/reduced down-time. This can be beneficial in terms of bearings, gears, engines, seals, cutting tools, or other tribological components. Fundamental aspects addressed may involve the investigation of the relevant physical and chemical effects accompanying the laser-generated nano- and microscale topographies, such as alterations of the material structures, the hardness, superficial oxidation, the role of additives contained in lubricants, surface wettability, micro-hydrodynamic effects, etc.
For this Special Issue we aim to attract both academic and industrial researchers and would like to provide a bridge between research in the fields of tribology and laser material processing in order to foster the current knowledge and present new ideas for future applications and new technologies.
Characterization of Nanoparticles: Measurement Processes for Nanoparticles surveys this fast growing field, including established methods for the physical and chemical characterization of nanoparticles. The book focuses on sample preparation issues (including potential pitfalls), with measurement procedures described in detail. In addition, the book explores data reduction, including the quantitative evaluation of the final result and its uncertainty of measurement. The results of published inter-laboratory comparisons are referred to, along with the availability of reference materials necessary for instrument calibration and method validation. The application of these methods are illustrated with practical examples on what is routine and what remains a challenge.
In addition, this book summarizes promising methods still under development and analyzes the need for complementary methods to enhance the quality of nanoparticle characterization with solutions already in operation.
The study of laser-fabricated periodic nanostructures is one of the leading topics of today’s photonics research. Such structures on the surface of metals, semiconductors, dielectrics, or polymers can generate new material properties with special functionalities. Depending on the specific material parameters and the morphology of the structures, new devices such as microlasers, optical nanoswitches, optical storage devices, sensors or antifraud features can be realized. Furthermore, laser-generated surface textures can be used to improve the tribological properties of surfaces in contact and in relative motion—to reduce friction losses or wear, to modify the wettability or the cell and biofilm growth properties of surfaces through bioinspired laser engineering, for emerging medical applications, or as decoration elements for the refinement of precious goods.
This Special Issue “Laser-Generated Periodic Nanostructures” focuses on the latest experimental and theoretical developments and practical applications of laser-generated periodic structures that can be generated in a “self-organized” way (laser-induced periodic surface structures, LIPSS, ripples) or via laser interference-based direct ablation (often referred to as direct laser interference patterning, DLIP). We aimed to attract both academic and industrial researchers in order to collate the current knowledge of nanomaterials and to present new ideas for future applications and new technologies. By 8 August 2021, 22 scientific articles have been published in the Special Issue.
Topical issue: Ellipsometry
(2022)
Ellipsometry is a matured experimental method, whose roots reach back into the early phase of modern optics itself. It is often attributed to be invented by Paul Drude in the last decade of the 19th century, but similar techniques had already been applied for years before Drude started his work. With this Special Issue about ellipsometry and related techniques, we hope to bring more attention to this method and advance and propagate it to be used by a broader community.
Advanced Pulse Laser Machining Technology is a rapidly growing field to tailor special industrial and scientific applications. This is significantly driven by the availability of high-repetition rate laser sources and novel beam delivery concepts.
This Special Issue focuses on developments in areas of surface and volume laser material processing, including spatial and temporal beam shaping, Bessel-beam dicing, direct laser interference patterning (DLIP), laser-induced forward transfer (LIFT), pulse burst machining, waveguide writing, and two-photon polymerization. Additionally, limitations of modern laser processing caused by failure of laser optics or unwanted secondary hazards like X-ray emission are addressed.
Here, we would like to attract contributors from industry and academics. This Special Issue shall bundle original research and review articles of the latest achievements.
Sulfate is abundant in the environment and, as a result, sulfate-containing minerals constitute a large and important focus of research. These minerals play an important role in many geochemical and industrial processes, including the sulfur cycle, the construction industry (e.g., plaster of Paris), fault tectonics, acid mine drainage, and even rare biominerals. Important to note are the abundant amounts of sulfate (minerals) located on the surface of Mars, and in meteorites, extending the relevance of this mineral group beyond the realm of our planet. In geological systems, sulfate minerals such as barite are also important for indicating certain sedimentation environments. In this regard, sulfate deposits can be used to evaluate the redox state of ancient oceans during early Earth time periods.