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Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
2021/07/08
New publication: The development of magnetocaloric materials represents an approach to enable efficient and environmentally friendly refrigeration.
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Epitaxy Induced Highly Ordered Sm2Co17–SmCo5 Nanoscale Thin-Film Magnets
2021/07/08
New publication: Utilizing the molecular beam epitaxy technique, a nanoscale thin-film magnet of c-axis-oriented Sm 2 Co 17 and SmCo 5 phases is stabilized.
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REPM achievement award for Prof. Oliver Gutfleisch
2021/06/18
At the 26th International Workshop on Rare-Earth and Future Permanent Magnets and their Applications (REPM2021) Prof. Oliver Gutfleisch received the REPM achievement award “For his outstanding work on the research and development of permanent magnet materials” (June 10, 2021).
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Twins – A weak link in the magnetic hardening of ThMn12-type permanent magnets
2021/06/07
New publication: Sm-based ThMn 12 -type structures are known to exhibit comparable intrinsic magnetic properties in comparison to the benchmark Nd 2 Fe 14 B.
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EMA Plenary lecture by Prof. Oliver Gutfleisch
2021/05/28
The European Magnetism Association leads a series of online seminars to ensure the broad visibility of its members and their work, while maintaining a low carbon footprint.
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Darmstadt Energy Prize 2021 awarded
2021/04/06
Two award winners in Fuctional Materials
The Advisory Board of the TU Darmstadt Energy Center e.V. has announced the winners of this year's Darmstadt Energy Prize. The best master theses and dissertations from energy research at TU Darmstadt were awarded. The award ceremony took place on March 23 as a virtual event.
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Machine-learning-enhanced time-of-flight mass spectrometry analysis
2021/02/17
New publication: Mass spectrometry is a widespread approach used to work out what the constituents of a material are.
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Comparing the Activity of Complex Solid Solution Electrocatalysts Using Inflection Points of Voltammetric Activity Curves as Activity Descriptors
2021/02/17
New publication: Complex solid solution (CSS) (often denoted as high-entropy alloy) electrocatalysts enable access to unique possibilities for tailoring active sites while overcoming ever-existing limitations in electrocatalysis by unique interactions of various elements in direct neighborhood. The
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Effect of nanoparticle additivation on the microstructure and microhardness of oxide dispersion strengthened steels produced by laser powder bed fusion and directed energy deposition
2021/02/17
New publication: In this contribution, the effect of nanoparticle additivation on the microstructure and microhardness of oxide dispersion strengthened steels (ODS) manufactured by laser powder bed fusion (L-PBF) and directed energy deposition (DED) additive manufacturing (AM) is studied.
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Correlating changes of the unit cell parameters and microstructure with magnetic properties in the CeFe11Ti compound
2021/02/16
New publication: The criticality of rare-earth elements and its impact on the permanent magnet market have initiated a search for alternative material systems, either to fill the magnetic performance gap between ferrites and Nd-Fe-B magnets or to even replace the existing benchmark systems.
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An accelerating approach of designing ferromagnetic materials via machine learning modeling of magnetic ground state and Curie temperature
2021/02/16
New publication: Magnetic materials have a plethora of applications from information technologies to energy harvesting. However, their functionalities are often limited by the magnetic ordering temperature.
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Combined kinetic and Bean–Rodbell approach for describing fieldinduced transitions in LaFe11.6Si1.4 alloys
2021/02/16
New publication: We propose a combination of the Kolmogorov–Johnson–Mehl–Avrami nucleation and growth theory and the Bean–Rodbell model to describe the field-induced transition in LaFe11.6Si1.4 alloys.
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A two-sublattice model for extracting rare-earth anisotropy constants from measurements on (Nd,Ce)2(Fe,Co)14B single crystals
2021/02/16
New publication: Anisotropy constants are obtained from an analysis of single crystal magnetization curves measured up to high fields.
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Microstructure formation and mechanical properties of ODS steels built by laser additive manufacturing of nanoparticle coated iron-chromium powders
2021/01/12
New publication: Oxide dispersion strengthened (ODS) steels are known for their enhanced mechanical performance at high temperatures or under radiation exposure. Their microstructure depends on the manufacturing process, from the nanoparticle addition to the base steel powder, to the processing of the nanoparticle enriched powder.
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Demonstrator 2020 – Electric Motor
2020/12/31
Junior HoMMage builds Electric Motor
Permanent magnets are the key for efficient electric motors and generators, are essential for electromobility and wind turbines. 95% of all electric vehicles use rare earth magnet drive motors, permanent magnet quantities required worldwide will grow from 5,000 tonnes in 2019 to 40,000 – 70,000 tonnes per year by 2030.
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Nutation resonance in ferromagnets
2020/12/09
New publication: The inertial dynamics of magnetization in a ferromagnet is investigated theoretically. The analytically derived dynamic response upon microwave excitation shows two peaks: ferromagnetic and nutation resonances.
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Salon on machine learning for materials science (ML4MS) organized by Prof. Zhang
2020/12/02
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Controlling the Oxidation of Magnetic and Electrically Conductive Solid-Solution Iron-Rhodium Nanoparticles Synthesized by Laser Ablation in Liquids
2020/11/30
Joined publication of the projects B08, B09, B05 and Z02
This study focuses on the synthesis of FeRh nanoparticles via pulsed laser ablation in liquid and on controlling the oxidation of the synthesized nanoparticles.
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Joint Equal Opportunities Day (“Gleichstellungstag”) of 4 CRCs
2020/11/24
Wir brauchen positive Rollenvorbilder!
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Beyond Solid Solution High‐Entropy Alloys: Tailoring Magnetic Properties via Spinodal Decomposition
2020/11/16
Since its first emergence in 2004, the high‐entropy alloy (HEA) concept has aimed at stabilizing single‐ or dual‐phase multi‐element solid solutions through high mixing entropy.