Department of Physical Metallurgy

Research Data Management Workshop by NFDI MatWerk: 21.02.2024

SAVE the data and register for the 1st NFDI-Matwerk Academy on Research Data Management for Materials Science @ TU Darmstadt, February 21st, 2024 at TU Darmstadt , S1|03 Hörsaal/lecture hall 23

Zum Jahresabschluss hat unsere Arbeitsgruppe den Weihnachtsmarkt in der Altstadt von Aschaffenburg besucht.

New Publication in Scripta Materialia

High-pressure torsion moulding of SmCo5-Cu powder mixtures leads to magnetically hardened nanocomposites. With increasing deformation, the microstructure is continuously refined, but the coercivity saturates after a certain degree and a partial amorphisation of the SmCo5 phase is observed. With further deformation and thus further refinement, the coercivity drops sharply. In this publication, micromagnetic simulations were performed based on the experimentally observed microstructures to investigate the influence of amorphisation in the SmCo5 phase.

This year's Physical Metallurgy retreat took place from 4 to 6 October in the small town of Wetzlar in central Hesse. In addition to the scientific dialogue, the participants enjoyed the picturesque old town and technological insights into the work of the camera manufacturer Leica.

At the beginning of September, the 27th REPM Workshop took place in Birmingham (UK). There, Franziska Staab presented her current research results on hard magnetic SmCo5-Cu nanocomposites produced by high pressure torsion pressing.

Numerous contributions from the PhM

Physical Metallurgy was represented with numerous contributions at last week's Euromat conference in Frankfurt am Main. Enrico Bruder, Marcel Sos and Sebastian Bruns presented current research results on the topics of mechanically alloyed magnetic materials, high-temperature nanoindentation, electroplasticity in oxide glasses and research data management using an electronic laboratory book.

Welcome Krishna Sarath Kumar Busi!

In August, Krishna Sarath Kumar Busi joined our group and started his PhD on the topic of “Development of high-strength and damage-tolerant diamond laminate coatings”. Welcome and good luck!

Within the framework of the “MecaNano” COST Action CA1121, the “Summer School on experimental Nano- and Micromechanics” took place at the Università degli studi Roma Tre from July 24-28, 2023. There, a delegation of PhM could not only listen to lectures on the topics of nanoindentation, fracture mechanics as well as dislocation dynamics, but also establish new contacts.

This year's GOMD meeting took place in New Orleans in early June. Sebastian Bruns presented his latest research results on viscous flow of oxide glasses induced by electron irradiation in the Charles R. Kurkjian Memorial Special Session on mechanical properties of glasses.

Review Paper in Materials Transactions

High-pressure torsion pressing represents a novel process for the production and processing of magnetic materials that yields remarkable magnetic properties. In this publication, we review recent results published in the literature obtained by high-pressure torsion pressing of soft and hard magnetic materials, focusing on powder as the starting material. In addition, we highlight the various magnetic interaction mechanisms of magnetic composites produced by high pressure torsion pressing of powdered starting materials.