結晶-ガラス-結晶相転移

結晶-ガラス-結晶相転移†

• References: T. Nagase, A. Sasaki, H. Y. Yasuda, H. Mori, T. Terai, T. Kakeshita: Intermetallics, 19, 1313-1318 (2011)., http://dx.doi.org/10.1016/j.intermet.2011.04.013
• Material: Nd2Fe14B
  

• Photograph: S. Anada, T. Nagase, H. Yasuda, H. Mori, J. of Alloys and Compounds, 579, 646-653 (2013)., "Electron-irradiation-induced phase transition in Cr2M (M = Ti and Al) intermetallic compounds", http://dx.doi.org/10.1016/j.jallcom.2013.06.122
• Material: Cr2Ti
  
  

A unique disordering-ordering phase transition, i.e., a crystalline-to-glass-to-crystalline (C-G-C) transition [1,2] and quasi-crystal-to-glass-to-crystal (Q-G-C) [3] was found in some intermetallic compounds under MeV electron irradiation using HVEM: a new crystalline phase with a crystal structure different from the original intermetallic compound (quashi crystal) appears from an amorphous phase, which is formed by SSA of the compound (quashi crystal).

REFERENCES
[1] W. Sinkler, D.E. Luzzi, C.W. Allen, Scr. Metall. 28, 863-868 (1993).
[2] T. Nagase, Y. Umakoshi: Scripta Mater. 48, 1237-1242 (2003)., http://dx.doi.org/10.1016/S1359-6462(03)00056-3
[3] T. Nagase, T. Hosokawa and Y. Umakoshi: Intermetallics, 14, 1027-1032 (2006)., http://dx.doi.org/10.1016/j.intermet.2006.01.021
[4] T. Nagase, A. Nino, T. Hosokawa, Y. Umakoshi: Mater. Trans. 48, 1651-1658 (2007)., http://www.jim.or.jp/journal/e/48/07/1651.html