# Tomography-based Micromagnetic Simulations of Nd-Fe-B Magnets: the Role of Intergranular Phase Nonuniformities

https://mdr.nims.go.jp/datasets/c29d603b-2464-4c65-b021-7b1eaee82da6

## File

- [abstract.docx](https://mdr.nims.go.jp/filesets/b363a3b0-b328-475a-86fc-d221b76c6bfa/download) ([Detail](https://mdr.nims.go.jp/filesets/b363a3b0-b328-475a-86fc-d221b76c6bfa.md))

## Id

c29d603b-2464-4c65-b021-7b1eaee82da6

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-10-13T04:49:59.884635Z

## Updated at

2024-10-16T23:30:28.043365Z

## Published at

2024-10-16T23:30:28.248873Z

## Doi

https://doi.org/10.48505/nims.4856

## First published url



## Date published



## Recorded date published



## Resource type

conference_poster

## Manuscript type

na

## Collection



## Title

- title: 'Tomography-based Micromagnetic Simulations of Nd-Fe-B Magnets: the Role
    of Intergranular Phase Nonuniformities'
  title_type: original
  lang: en

## Description

- description: In this report, we present a large-scale micromagnetic model of hot-deformed
    Nd-Fe-B magnets constructed based on a FIB-SEM tomographic data. This model can
    accurately reproduce the microstructure of real magnets. In particular, the IGP
    is represented by a set of thin individual regions localized between contacting
    faces of adjacent platelet-shaped grains. All such IGPs are isolated from each
    other by triple junctions. Here we performed micromagnetic simulations to study
    how the variations of both IGP thickness and magnetization, which have been experimentally
    observed, affect the coercivity of the hot-deformed Nd-Fe-B magnets. Also, we
    will emphasize another important factor for coercivity engineering that is triple
    junctions.
  description_type: abstract
  lang: eng

## Creator

- name: BOLYACHKIN Anton
  role: author
  orcid: https://orcid.org/0000-0003-0420-1806
  organization: National Institute for Materials Science
  department: International Center for Young Scientists
  ror: https://ror.org/026v1ze26
- name: DENGINA Ekaterina
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Green Magnetic
    Materials Group
  ror: https://ror.org/026v1ze26
- name: KULESH Nikita
  role: author
  orcid: https://orcid.org/0000-0001-7046-2671
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Green Magnetic
    Materials Group
  ror: https://ror.org/026v1ze26
- name: TANG Xin
  role: author
  orcid: https://orcid.org/0000-0001-6762-6145
  organization: National Institute for Materials Science
  department: International Center for Young Scientists
  ror: https://ror.org/026v1ze26
- name: SEPEHRI AMIN Hossein
  role: author
  orcid: https://orcid.org/0000-0002-7856-7897
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Green Magnetic
    Materials Group
  ror: https://ror.org/026v1ze26
- name: OHKUBO Tadakatsu
  role: author
  orcid: https://orcid.org/0000-0003-3548-1951
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials
  ror: https://ror.org/026v1ze26
- name: HONO Kazuhiro
  role: author
  orcid: https://orcid.org/0000-0001-7367-0193
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

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## Keyword

- subject: Nd-Fe-B magnets
  schema: not_defined
- subject: Micromagnetic simulations
  schema: not_defined
- subject: FIB-SEM tomography
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: 27th International Workshop on Rare Earth and Future Permanent Magnets and Their
  Applications
start_date: 2023-09-03
end_date: 2023-09-07
identifier: https://uobevents.eventsair.com/repm2023/

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## Fileset

- id: b363a3b0-b328-475a-86fc-d221b76c6bfa
  filename: abstract.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 22471
  md5: de13c06676a79fc665da3d3bb478f9c4

## Thumbnail

fileset_id: b363a3b0-b328-475a-86fc-d221b76c6bfa
filename: abstract.docx