Multi-phase field modeling and simulation of magnetically driven grain boundary migration in SmCo polycrystals

There is a growing demand for magnetic materials straight forward in wind turbines and electric motors. Their functional properties depend critically on their microstructure and thus on the microstructure evolution during sintering or heat treatment. Field-assisted selective grain growth allows to optimize the microstructure. However, the simultaneous modeling of the structural and magnetic degrees of freedom on the micrometer scale is not possible with most simulation packages. Therefore, we extend the open-source software project OpenPhase and implement the micromagnetic equations needed to treat both degrees of freedom in the framework of the multi-phase field method. We apply our model to the field-assisted grain growth in Sm\(_2\)Co\(_17\) polycrystal films.

Metadaten
Author:	Liu Huo ORCiD GND, Raphael Schiedung ORCiD GND, Huaiguang Li GND, Gang Wang ORCiD GND, Y. Hong, Anna Grünebohm ORCiD GND, Ingo Steinbach ORCiD GND
URN:	urn:nbn:de:hbz:294-121628
DOI:	https://doi.org/10.1088/1361-6463/acedbb
Parent Title (English):	Journal of physics D: applied physics
Publisher:	IOP Publishing
Place of publication:	Bristol, Vereinigtes Königreich
Document Type:	Article
Language:	English
Date of Publication (online):	2024/12/06
Date of first Publication:	2023/08/22
Publishing Institution:	Ruhr-Universität Bochum, Universitätsbibliothek
Tag:	Multi-phase field method; field-assisted grain growth; micromagnetic simulation; permanent magnets
Volume:	56
Issue:	46. Artikel 465003
First Page:	465003-1
Last Page:	465003-11
Institutes/Facilities:	Interdisciplinary Centre for Advanced Materials Simulation (ICAMS)
Dewey Decimal Classification:	Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften, Maschinenbau
open_access (DINI-Set):	open_access
faculties:	Fakultät für Maschinenbau
Licence (English):	Creative Commons - CC BY 4.0 - Attribution 4.0 International

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