Atomsondentomographie & 3D-Nanoanalytik
In Prof. Felfers Team werden neue Prozessmethoden entwickelt und durch tiefgreifende Charakterisierung das Verständnis von industriell relevanten Werkstoffen verbessert. Der Fokus liegt dabei auf der Weiterentwicklung von Geräten, aber auch der Technik und der Methodik der Materialuntersuchungen. Mit unserer Expertise in Atomsondentomographie (APT), rechnerunterstütztes Konstruieren (CAD), Feldionen Mikroskop (FIM), fokussierter ionen Strahl in Kombination mit einem Rasterelektronenmikroskop (FIB/SEM) und 3D Druck im Extrusionsverfahren untersuchen wir eine Vielzahl von Themen und Materialklassen, die für die Bereiche Automobil, Energie, Geowissenschaften und Luft- und Raumfahrt wichtig sind. Wenn eine Forschungsfrage mit den derzeitigen Charakterisierungsmöglichkeiten nicht beantwortet werden kann, werden speziell hierfür neue Anlagebauteile, Teststationen, Transfersysteme oder auch ein ganzes Mikroskop konzipiert und aufgebaut. Die Forschungsschwerpunkte liegen auf der Wasserstoffversprödung, Analyse von Nanopartikeln mittels FIM, kosteneffektives 3D Drucken von Metallen und Charakterisierung von Werkstoffen für die Energietechnologien (z.B. Brennstoffzellen, neue Katalysatormaterialien).
Team
Prof. Dr. Peter Felfer
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-27505
- E-Mail: peter.felfer@fau.de
Dr.-Ing. Martin Weiser
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-27506
- E-Mail: martin.weiser@fau.de
Dr. Heena Khanchandani
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-27506
- E-Mail: heena.khanchandani@fau.de
Martina Heller, M. Sc.
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-70455
- E-Mail: martina.heller@fau.de
Benedict Ott, M. Sc.
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-25449
- E-Mail: benedict.ott@fau.de
Nora Vorlaufer, M. Sc.
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-25449
- E-Mail: nora.vorlaufer@fau.de
Mehrpad Monajem, M. Sc.
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-25449
- E-Mail: mehrpad.monajem@fau.de
Jan-Oliver Hücking, M. Sc.
Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
- Telefon: +49 9131 85-27481
- E-Mail: jan-oliver.h.huecking@fau.de
Aktuelle Forschungsprojekte
Wasserstoff
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Nanopartikel Atomsonden Analyse
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Charakterisierung von neuen Materialien für energietechnologische Anwendungen
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In-situ-3-D-Abbildung von Wasserstoff mithilfe einer Atomsonde
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Stähle unter Wasserstoff – Grenzen der Festigkeit und Rolle von Schutzschichten (HYDSTREN)
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Publikationen
Ag2Cu2O3- a catalyst template material for selective electroreduction of CO to C(2+)products
In: Energy and Environmental Science 13 (2020), S. 2993-3006
ISSN: 1754-5692
DOI: 10.1039/d0ee01100b
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Combining Experiments and Atom Probe Tomography-Informed Simulations on γ′ Precipitation Strengthening in the Polycrystalline Ni-Base Superalloy A718Plus
In: Advanced Engineering Materials (2020)
ISSN: 1438-1656
DOI: 10.1002/adem.202000149
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Impact of the Co/Ni-Ratio on Microstructure, Thermophysical Properties and Creep Performance of Multi-Component γ′-Strengthened Superalloys
In: Crystals 10 (2020), S. 1058
ISSN: 2073-4352
DOI: 10.3390/cryst10111058
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Indium and antimony distribution in a sphalerite from the “burgstaetter gangzug” of the upper harz mountains pb-zn mineralization
In: Minerals 10 (2020), S. 1-19
ISSN: 2075-163X
DOI: 10.3390/min10090791
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Magnetic dilution by severe plastic deformation
In: AIP Advances 10 (2020), Art.Nr.: 015210
ISSN: 2158-3226
DOI: 10.1063/1.5128058
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Nanoscaled eutectic NiAl-(Cr,Mo) composites with exceptional mechanical properties processed by electron beam melting
In: Scientific Reports 10 (2020), Art.Nr.: 15153
ISSN: 2045-2322
DOI: 10.1038/s41598-020-72093-5
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Thermochemistry and phase stability of the polymorphs of yttrium tantalate, YTaO4
In: Journal of the European Ceramic Society (2020)
ISSN: 0955-2219
DOI: 10.1016/j.jeurceramsoc.2020.10.039
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The role of Ti and TiC nanoprecipitates in radiation resistant austenitic steel: A nanoscale study
In: Acta Materialia 197 (2020), S. 184-197
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2020.07.022
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Visualization Aided Interface Reconstruction
VMV 2020, 25th International Symposium on Vision, Modeling, and Visualization (Tübingen, 28. September 2020 - 1. Oktober 2020)
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Fused filament fabrication, debinding and sintering as a low cost additive manufacturing method of 316L stainless steel
In: Additive Manufacturing 30 (2019), Art.Nr.: 100861
ISSN: 2214-7810
DOI: 10.1016/j.addma.2019.100861
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Impact of Mn on the precipitate structure and creep resistance of Ca containing magnesium alloys
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 761 (2019), Art.Nr.: 137964
ISSN: 0921-5093
DOI: 10.1016/j.msea.2019.05.094
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Influence of Zn and Sn on the precipitation behavior of new Al-Mg-Si alloys
In: Materials 12 (2019), Art.Nr.: 2547
ISSN: 1996-1944
DOI: 10.3390/ma12162547
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Paramelaconite-Enriched Copper-Based Material as an Efficient and Robust Catalyst for Electrochemical Carbon Dioxide Reduction
In: Advanced Energy Materials (2019), Art.Nr.: 1901228
ISSN: 1614-6832
DOI: 10.1002/aenm.201901228
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Steel parts produced by material extrusion additive manufacturing, solvent debiding and sintering
Materials Science and Technology 2019, MS and T 2019 (Portland, OR, 29. September 2019 - 3. Oktober 2019)
In: MS and T 2019 - Materials Science and Technology 2019 2019
DOI: 10.7449/2019/MST_2019_264_266
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Ultrahigh-strength low carbon steel obtained from the martensitic state via high pressure torsion
In: Acta Materialia 166 (2019), S. 168-177
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2018.12.028
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Advanced concentration analysis of atom probe tomography data: Local proximity histograms and pseudo-2D concentration maps
In: Ultramicroscopy 189 (2018), S. 61-64
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2018.03.011
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Atomic-scale insights into surface species of electrocatalysts in three dimensions
In: Nature Catalysis 1 (2018), S. 300-305
ISSN: 2520-1158
DOI: 10.1038/s41929-018-0043-3
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Atom Probe Tomography
In: Praktische Metallographie 55 (2018), S. 515-526
ISSN: 0032-678X
DOI: 10.3139/147.110543
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Correlative Microscopy-Novel Methods and Their Applications to Explore 3D Chemistry and Structure of Nanoscale Lattice Defects: A Case Study in Superalloys
In: JOM Journal of the Minerals, Metals and Materials Society 70 (2018), S. 1736-1743
ISSN: 1047-4838
DOI: 10.1007/s11837-018-2802-7
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Interpreting Atom Probe Data from Oxide-Metal Interfaces
In: Microscopy and Microanalysis 24 (2018), S. 342-349
ISSN: 1431-9276
DOI: 10.1017/S1431927618012370
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Observation of oscillatory radiation induced segregation profiles at grain boundaries in neutron irradiated 316 stainless steel using atom probe tomography
In: Journal of Nuclear Materials 504 (2018), S. 181-190
ISSN: 0022-3115
DOI: 10.1016/j.jnucmat.2018.01.053
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Phase equilibria in the ZrO2-YO1.5-TaO2.5 system at 1250 degrees C
In: Journal of the European Ceramic Society 38 (2018), S. 4523-4532
ISSN: 0955-2219
DOI: 10.1016/j.jeurceramsoc.2018.06.010
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A New Approach to Understand the Adsorption of Thiophene on Different Surfaces: An Atom Probe Investigation of Self-Assembled Monolayers
In: Langmuir 33 (2017), S. 9573-9581
ISSN: 0743-7463
DOI: 10.1021/acs.langmuir.7b01820
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Morphology evolution of Ti3AlC carbide precipitates in high Nb containing TiAl alloys
In: Acta Materialia 137 (2017), S. 36-44
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2017.07.018
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On grain boundary segregation in molybdenum materials
In: Materials & Design 135 (2017), S. 204-212
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2017.09.019
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A computational geometry framework for the optimisation of atom probe reconstructions
In: Ultramicroscopy 169 (2016), S. 62-68
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2016.07.008
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A simple approach to atom probe sample preparation by using shadow masks
In: Ultramicroscopy 160 (2016), S. 163-167
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2015.09.005
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Contributions to understanding catalysis by using atom probe tomography
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Grain size stability in Al-Sc alloys processed by severe plastic deformation
In: Scripta Materialia 123 (2016), S. 105-108
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2016.06.005
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Influence of Ni Solute segregation on the intrinsic growth stresses in Cu(Ni) thin films
In: Scripta Materialia 113 (2016), S. 131-134
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2015.10.010
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Linking stress-driven microstructural evolution in nanocrystalline aluminium with grain boundary doping of oxygen
In: Nature Communications 7 (2016), Art.Nr.: 11225
ISSN: 2041-1723
DOI: 10.1038/ncomms11225
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Atom probe study of chromium oxide spinels formed during intergranular corrosion
In: Scripta Materialia 99 (2015), S. 1-4
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2014.09.028
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Detecting and extracting clusters in atom probe data: A simple, automated method using Voronoi cells
In: Ultramicroscopy 150 (2015), S. 30-36
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2014.11.015
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Mapping interfacial excess in atom probe data
DOI: 10.1016/j.ultramic.2015.06.002
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Mining information from atom probe data
In: Ultramicroscopy 159 (2015), S. 324-337
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2015.05.006
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New approaches to nanoparticle sample fabrication for atom probe tomography
DOI: 10.1016/j.ultramic.2015.04.014
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The Hidden Pathways in Dense Energy Materials - Oxygen at Defects in Nanocrystalline Metals
In: Advanced Materials 27 (2015), S. 6220-6224
ISSN: 0935-9648
DOI: 10.1002/adma.201503118
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Penetration of protective chromia scales by carbon
In: Scripta Materialia 77 (2014), S. 29-32
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2014.01.009
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Revealing the Distribution of the Atoms within Individual Bimetallic Catalyst Nanoparticles
In: Angewandte Chemie International Edition 53 (2014), S. 11190-11193
ISSN: 1433-7851
DOI: 10.1002/anie.201405043
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Understanding the mechanical behavior of nanocrystalline Al-O thin films with complex microstructures
In: Acta Materialia 77 (2014), S. 269-283
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2014.05.058
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Applying computational geometry techniques for advanced feature analysis in atom probe data
In: Ultramicroscopy 132 (2013), S. 100-106
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2013.03.004
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Atom probe microscopy characterization of as quenched Zr-0.8 wt% Fe and Zr-0.15 wt% Cr binary alloys
In: Materials Letters 91 (2013), S. 63-66
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2012.09.059
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High strength and retained ductility achieved in a nitrided strip cast Nb-microalloyed steel
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 44 (2013), S. 848-855
ISSN: 1073-5623
DOI: 10.1007/s11661-012-1446-4
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Long-Chain Terminal Alcohols through Catalytic CO Hydrogenation
In: Journal of the American Chemical Society 135 (2013), S. 7114-7117
ISSN: 0002-7863
DOI: 10.1021/ja402512r
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New atom probe approaches to studying segregation in nanocrystalline materials
In: Ultramicroscopy 132 (2013), S. 158-163
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2012.12.013
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The effect of pre-existing defects on the strength and deformation behavior of α-Fe nanopillars
In: Acta Materialia 61 (2013), S. 439-452
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2012.09.022
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The rise of computational techniques in atom probe microscopy
In: Current Opinion in Solid State & Materials Science 17 (2013), S. 224-235
ISSN: 1359-0286
DOI: 10.1016/j.cossms.2013.09.006
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Effect of ion irradiation on tensile ductility, strength and fictive temperature in metallic glass nanowires
In: Acta Materialia 74 (2014), S. 165-182
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2014.04.002
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A new approach to the determination of concentration profiles in atom probe tomography
In: Microscopy and Microanalysis 18 (2012), S. 359-364
ISSN: 1431-9276
DOI: 10.1017/S1431927611012530
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A quantitative atom probe study of the Nb excess at prior austenite grain boundaries in a Nb microalloyed strip-cast steel
In: Acta Materialia 60 (2012), S. 5049-5055
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2012.06.013
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A reproducible method for damage-free site-specific preparation of atom probe tips from interfaces
In: Microscopy Research and Technique 75 (2012), S. 484-491
ISSN: 1059-910X
DOI: 10.1002/jemt.21081
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Segregation of B, P, and C in the ni-based superalloy, Inconel 718
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 43 (2012), S. 2183-2191
ISSN: 1073-5623
DOI: 10.1007/s11661-012-1085-9
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Shaping the lens of the atom probe: Fabrication of site specific, oriented specimens and application to grain boundary analysis
In: Ultramicroscopy 111 (2011), S. 435-439
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2010.12.005
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Atom probe specimen preparation and 3D interfacial study of Ti-Al-N thin films
In: Surface & Coatings Technology 204 (2010), S. 1811-1816
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2009.11.020
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A versatile cryo-transfer system, connecting cryogenic focused ion beam sample preparation to atom probe microscopy
In: PLoS ONE 16 (2021), Art.Nr.: e0245555
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0245555
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Fused Filament Fabrication-Based Additive Manufacturing of Commercially Pure Titanium
In: Advanced Engineering Materials (2021)
ISSN: 1438-1656
DOI: 10.1002/adem.202100380
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Powder content in powder extrusion moulding of tool steel: Dimensional stability, shrinkage and hardness
In: Materials Letters 283 (2021)
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2020.128909
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Ultra-high oxidation resistance of nano-structured thin films
In: Materials & Design 201 (2021), Art.Nr.: 109499
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2021.109499
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Atom Probe Analysis of Nanoparticles through Pick and Coat Sample Preparation
In: Microscopy and Microanalysis (2021)
ISSN: 1431-9276
DOI: 10.1017/S1431927621000465
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Cumulate olivine: A novel host for heavy rare earth element mineralization
In: Geology 49 (2020)
ISSN: 0091-7613
DOI: 10.1130/G48417.1
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Influence of Ta on the oxidation resistance of WB2−z coatings
In: Journal of Alloys and Compounds (2020), Art.Nr.: 158121
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2020.158121
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