TY - CONF A1 - Bonse, Jörn T1 - Funktionalisierung durch laser-induzierte periodische Oberflächenstrukturen N2 - Der Vortrag gibt einen Überblick über die vielfältigen Möglichkeiten der Oberflächenfunktionalisierung mittels Mikro- und Nanostrukturierung durch Ultrakurzpuls-Lasermaterialbeabeitung. Dies schließt eine Diskussion des Phänomens der Laser-induzierten periodischen Oberflächenstrukturen (LIPSS, engl.: Laser-induced Periodic Surface Structures, Ripples), sowie deren Klassifikation und Bildungsmechanismen mit ein. Ein Schwerpunkt der Präsentation liegt auf der Diskussion verschiedener Anwendungsmöglichkeiten der LIPSS in Bereichen der Optik, Fluidik, Tribologie und Medizin, sowie auf einem Ausblick auf die industrielle Skalierbarkeit der LIPSS-Technologie. T2 - 1. Netzwerktreffen 2024 des UKPL-Innovationsnetzwerks CY - Rostock, Germany DA - 11.03.2024 KW - Laser-induced Periodic Surface Structures (LIPSS) KW - Oberflächenfunktionalisierung KW - Mikrostrukturen KW - Nanostrukturen KW - Ultrakurzpuls-Laserbearbeitung PY - 2024 AN - OPUS4-59657 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Casperson, Ralf A1 - Friedrich, Alexander A1 - Heckel, Thomas A1 - Zhang, Tianyun T1 - DICONDE für die Schienenprüfung N2 - Bei der zerstörungsfreien Prüfung verlegter Eisenbahnschienen werden die Rohdaten derzeit in proprietären Datenformaten gespeichert und auf Datenträgern zwischen den Prüfzügen und den auswertenden Stellen versendet. Die proprietären Datenformate sind in der Regel nur den Herstellern der Prüfsysteme bekannt und deren Dokumentation nicht allgemein zugänglich. Das Forschungsprojekt „Artificial Intelligence for Rail Inspection“ (AIFRI) erfordert den Austausch von Prüfdaten in einem offenen Format sowohl zwischen den Projektpartnern als auch die Veröffentlichung anonymisierter Daten ausgewählter Strecken aus dem Offenen Digitalen Testfeld (ODT). Wir haben uns in dem Projekt für die Verwendung der „Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation“ (DICONDE) entschieden. DICONDE basiert auf dem medizinischen Standard „Digital Imaging and Communication in Medicine“ (DICOM) und wurde von ASTM an die ZfP angepasst. DICOM bzw. DICONDE ist nicht nur ein Datenformat, sondern beinhaltet auch Kommunikationsschnittstellen für die Auftragsvergabe, Datenübertragung und Abfrage gespeicherter Datensätze aus einem Archiv. In dem Vortrag werden DICOM und DICONDE vorgestellt, sowie die Verwendung von DICONDE für die Schienenprüfung im Projekt AIFRI näher erläutert. Es wird gezeigt, wie sich Prüfdaten, Prüfparameter, Streckeninformationen incl. Kilometertafeln und Geokoordinaten und Befunde in DICONDE kodieren lassen. T2 - 13. Fachtagung ZfP im Eisenbahnwesen CY - Erfurt, Germany DA - 12.03.2024 KW - DICONDE KW - Wirbelstromprüfung KW - Ultraschallprüfung KW - Schienenprüfung PY - 2024 AN - OPUS4-59663 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pauw, Brian Richard T1 - Glimpses of the future: Systematic investigations of 1200 mofs using a highly automated, full-stack materials research laboratory N2 - By automatically recording as much information as possible in automated laboratory setups, reproducibility and traceability of experiments are vastly improved. This presentation shows what such an approach means for the quality of experiments in an X-ray scattering laboratory and an automated synthesis set-up. T2 - Winter School on Metrology and Nanomaterials for Clean Energy CY - Claviere, Italy DA - 28.01.2024 KW - Digitalization KW - Automation KW - Digital laboratory KW - Scattering KW - Synthesis KW - Nanomaterials KW - Holistic science PY - 2024 AN - OPUS4-59621 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pauw, Brian Richard T1 - The Dark Side of Science (2024 edition) N2 - This presentation highlights ongoing scientific misconduct as found in academic literature. This includes data- and image manipulation, and paper mills. Starting with an expose of examples, it delves deeper into the causes and metrics driving this phenomenon. Finally a range of possible tools is presented, that the young researcher can use to prevent themselves from sliding into the dark scientific methods. T2 - Winter School on Metrology and Nanomaterials for Clean Energy CY - Claviere, Italy DA - 28.01.2024 KW - Scientific misconduct KW - Data manipulation KW - Image manipulation KW - Paper mills KW - Causes leading to scientific misconduct KW - Tools to combat scientific misconduct KW - Metrics PY - 2024 AN - OPUS4-59622 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lindemann, Franziska T1 - Bestimmung der spezifischen Oberfläche mittels Gasadsorption (BET-Verfahren) N2 - Im Rahmen des 2. BAM-Akademie Info-Tages "Nano or not Nano" wurde die OECD TG 124 "Volume Specific Surface Area of Manufactured Nanomaterials" vorgestellt. Der Vortrag beschreibt die Bestimmung der spezifischen Oberfläche von dispersen und/oder porösen Pulvern mittels Gasadsorption nach dem BET-Verfahren. Es wird auf die Anwendbarkeit der Methode eingegangen und es werden praktische Hinweise zur Probenvorbereitung und Messung von Nanomaterialien gegeben. T2 - BAM Akademie II: Info-Tage "Nano or not Nano" CY - Online meeting DA - 25.01.2024 KW - OECD TG 124 KW - Nanopulver KW - VSSA KW - Nano powder KW - BET KW - Spezifische Oberfläche PY - 2024 AN - OPUS4-59623 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weinel, Kristina A1 - Schultz, J. A1 - Wolf, D. A1 - Kalady, M. F. A1 - Agudo, Leonardo A1 - Lubk, A. A1 - Büchner, B. A1 - Grundy, N. A1 - Gonzalez-Martinez, I. T1 - Electron-beam-induced synthesis and characterization of disordered plasmonic gold nanoparticle assemblies N2 - Several studies have been shown that the electron beam can be used to create nanomaterials from microparticle targets in situ in a transmission electron microscope (TEM). Here, we show how this method has to be modified in order to synthesize plasmonic gold nanoparticles (NPs) on insulating silicon oxide substrate by employing a scanning electron microscope with a comparatively low acceleration voltage of 30 kV. The synthesized NPs exhibit a random distribution around the initial microparticle target: Their average size reduces from 150 nm to 3 nm with growing distance to the initial Au microparticle target. Similarly, their average distance increases. The synthesized NP assemblies therefore show distinctly different plasmonic behaviour with growing distance to the target, which allows to study consequences of random hybridization of surface plasmon in disordered system, such as Anderson localization. To reveal the surface plasmons and their localization behaviour we apply electron energy loss spectroscopy in the TEM. T2 - DPG spring conference, condensed matter section CY - Berlin, Germany DA - 17.03.2024 KW - Scanning electron microscopy KW - Gold nanoparticle synthesis KW - Disordered assemblies KW - Localized plasmons PY - 2024 AN - OPUS4-59763 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph T1 - ISO 27913 - Example For Successful Standardization Activities In The Field Of CCUS N2 - Since 2016 ISO Technical Committee (TC) 265 is working on standardization the whole CCS-process chain. Around 30 countries are working together to provide international guidelines. As ISO 27913 was the first standard finished within these activities it is already in the stage of first revision. The objective of ISO 27913 is “to provide specific requirements and recommendations on certain aspects of safe and reliable design, construction and operation of pipelines intended for the large-scale transportation of CO2 that are not already covered in existing pipeline standards such as ISO 13623, ASME B31.8, EN 1594, AS 2885 or other standards. Existing pipeline standards cover many of the issues related to the design and construction of CO2 pipelines; however, there are some CO2 specific issues that are not adequately covered in these standards. The purpose of this document is to cover these issues consistently. Hence, this document is not a standalone standard, but is written to be a supplement to other existing pipeline standards for natural gas or liquids for both onshore and offshore pipelines.” This contribution shall provide information on the content, the current stage of the revision process, encourage to contribute to this standard and make listeners aware to consider the influence of ISO standard on documents currently in draft. T2 - AMPP's Annual Conference + Expo 2024 CY - New Orleans, LA, USA DA - 02.03.2024 KW - Corrosion resistant materials KW - Carbon dioxide KW - Corrosion prevention KW - Standardization KW - CCUS KW - CCS KW - CCU PY - 2024 AN - OPUS4-59736 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Thoralf A1 - Grunewald, Andreas T1 - Statusbericht zum FGS Projekt Gefügeveränderung bei trockener Grobbearbeitung N2 - Der Vortrag gibt eine Übersicht zum Stand des Projekts zum Thema Gefügeveränderung bei trockener Grobbearbeitung. Es wurden vier verschiedene trockene Oberflächenbearbeitungsverfahren an 2 Werkstoffen eingesetzt um Testoberflächen zu schaffen. Die so gefertigten Oberflächen wurden lichtmikroskopisch untersucht und die jeweiligen Rauhigkeitskennwerte bestimmt. Weiterhin wurden metallografische Querschliffe angefertigt um die verfahrens- bzw. materialabhängigen Einflüsse auf mögliche Gefügeveränderungen zu untersuchen. Zusätzlich wurden elektrochemische Polarisationsversuche durchgeführt um die oberflächenspezifische Korrosionsbeständigkeit der nichtrostenden Stahlproben zu quantifizieren. T2 - Jahrestagung der Forschungsgemeinschaft Schleifen (FGS) 2023 CY - Würzburg DA - 21.03.2024 KW - Schleifbearbeitung KW - Korrosion KW - Nichtrostender Stahl KW - Stahl KW - Verformung PY - 2024 AN - OPUS4-59739 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne A1 - Quackatz, Lukas A1 - Westin, E.M. A1 - Griesche, Axel A1 - Kannengießer, Thomas A1 - Treutler, K. A1 - Wesling, V. T1 - Assessing ferrite content in duplex stainless steel weld metals: WRC '92 predictions vs. practical measurements N2 - The weldability of stainless steels is largely controlled by the chemical composition, and alloys with ferritic or ferritic-austenitic solidification show the highest resistance to hot cracking. As the resulting phase balance also affects the final properties, it may be beneficial to both foresee and measure the weld metal ferrite content. The WRC ’92 constitution diagram is currently the most accurate prediction tool available, but it does not take the cooling rate into consideration and the precision may be less accurate for stainless steels with high ferrite numbers (FN). This study aims to validate the reliability of the WRC ’92 diagram for weld metals with FN > 50. The chemical composition was altered through gas tungsten arc welding (GTAW) of UNS S32205 with ER347 filler wire that had been PVD-coated with either niobium (Nb), copper (Cu), nickel (Ni), manganese (Mn), carbon (C), or silicon (Si). The actual ferrite content was assessed using image analysis, FERITSCOPE® and X-ray diffraction (XRD). While the WRC ’92 diagram predictions were deemed accurate to acceptable for Ni, Si, and Mn, notable deviations were observed for Nb, Cu, and C. The FeriteScope exhibited a consistent trend with image analysis, though the values were higher, and scatter was wider, and the conversion factor is open for discussion. The lowest accuracy and largest spread were obtained using non-contact XRD, rendering it unsuitable for ferrite measurements of welds. T2 - IIW Intermediate Meeting Comission IX-H CY - Incheon, Republic of Korea DA - 12.03.2024 KW - Duplex Stainless Steel KW - Ferrite KW - WRC 92 PY - 2024 AN - OPUS4-59750 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertwig, Andreas T1 - New analytic ways to characterise mesoporous thin layers used in electrocatalytic water splitting N2 - Mesoporous materials are needed in many applications where a high specific surface area and adsorptive behaviour is needed. Important examples are separation techniques and barrier layers and catalysts. Electrochemical water splitting is the key technology for producing green hydrogen and there is no foreseeable alternative to this process for producing elementary hydrogen from green electrical power. Water electrolysis can be divided into the anodic Oxygen Evolution Reaction (OER) and the cathodic Hydrogen Evolution Reaction (HER). Both processes have to be heavily optimised to a large extent to avoid energy losses caused by overvoltage. The development of electrodes for these processes is especially difficult due to the many boundary conditions. Water splitting is a catalytic as well as electrochemical process. The contact area between the electrolyte and the electrode must be maximised maintaining the stability of the surface. Side reactions must be suppressed, and effective gas transport must be ensured. The whole process has to be tolerant with respect to temperature, harsh chemical conditions from the electrolyte as well as high current densities. We present a hybrid analytical method combining several analytical techniques for determining the properties of thin layers of mixed oxides of the general composition Ir:TiOx. These materials are promising candidates for electrocatalytical top coatings of OER electrodes. To lower the costs of the electrolysers, the main goal is to lower the Ir content retaining the system efficiency. The main properties which are hard to determine are the porous volume fraction and the Ir:Ti element ratio. By a combination of electron microscopy, spectroscopic operando ellipsometry, ellipsometric porosimetry, and other techniques, we can determine key features of mesoporous thin layer materials. We aim to develop operando capable techniques used in process monitoring as well as measurement techniques optimised for accuracy. By developing reference materials, we support long term uptake of our methodology. This work can directly be used for optimising electrocatalytic layers and is a good example for the power of hybrid metrology for improving materials design. T2 - International Conference on Resource Chemistry CY - Alzenau, Germany DA - 11.03.2024 KW - Ellipsometry KW - Electrocatalytic Water Splitting KW - Mesoporous Materials KW - Electron Probe Microanalysis KW - Hydrogen Generation PY - 2024 AN - OPUS4-59764 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -