低温工学
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
解説
強磁場中熱分析
-相平衡への強磁場効果-
三井 好古小山 佳一淡路 智渡辺 和雄
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2014 年 49 巻 1 号 p. 11-18

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The magnetic field effects on the synthesis process, decomposition process, and the phase equilibrium of materials have been investigated via thermal analysis experiments in high magnetic fields (HF-DTA). In this review, the thermal analysis systems in high magnetic fields are described. The typical results obtained by HF-DTA are presented. The magnetic field effects on the synthesis process of the high-Tc superconductors and the phase equilibrium of ferromagnetic materials are described. The results of HF-DTA experiments show that the phase equilibriums of Bi-Mn system and Fe-C alloys are drastically changed by applying high magnetic fields. In addition, HF-DTA experiments were performed for various compositions of Bi-Mn alloys. BiMn binary phase diagrams in high magnetic fields were shown. The magnetic field effects on the phase equilibrium were discussed in the basis of Zeeman energy of the ferromagnetic phase.

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© 2014 公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
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