Magnetic field effects on reactive sintering of MnBi

Ken Ichi Abematsu, Yoshifuru Mitsui, Atsushi Taira, Daiki Miyazaki, Akio Takaki, Rie Y. Umetsu, Kohki Takahashi, Keiichi Koyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Annealing temperature of reactive sintering of MnBi was optimized. The highest fraction of MnBi phase was obtained to be 93wt.% at annealing temperature of 280°C. Magnetic field effects on solid- and liquid-state sintering of MnBi were described. The reacted fraction of MnBi was enhanced by the application of magnetic field of 15 T for solid- state sintering. In contract, reacted fraction was not influenced by magnetic field for liquid-state sintering. Both of in- field solid- and liquid-state sintered samples realized the highly crystal orientation of MnBi phase along the applied magnetic field direction. The Lotgering factor of the MnBi phase was obtained to be 1.0 for both in-field sintered samples, which was an "almost complete" uniaxial orientation. Due to the crystal orientation, anisotropic magnetic properties exhibited. The anisotropy field of the bulk sample was evaluated to be 4 T at room temperature, which also suggested the uniaxial orientation of the sample.

Original languageEnglish
Title of host publicationFrontiers in Materials Science, FMS 2015
Subtitle of host publicationProceedings of the 2nd International Symposium on Frontiers in Materials Science
EditorsMasato Yoshiya, Nam-Nhat Hoang, Markus Munzenberg, Tomoyuki Yamamoto
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414211
DOIs
Publication statusPublished - 2016 Aug 26
Event2nd International Symposium on Frontiers in Materials Science, FMS 2015 - Tokyo, Japan
Duration: 2015 Nov 192015 Nov 21

Publication series

NameAIP Conference Proceedings
Volume1763
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other2nd International Symposium on Frontiers in Materials Science, FMS 2015
CountryJapan
CityTokyo
Period15/11/1915/11/21

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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