An investigation of HDDR phenomena in the Sm-3(Fe,V)(29) compound

被引：1
|
作者：
Book, D
Nakamura, H
Sugimoto, S
Kagotani, T
Okada, M
Homma, M
机构：
[1] Department of Materials Science, Faculty of Engineering, Tohoku University, Aoba-ku, Sendai, 980-77, Aoba, Aramaki
来源：
MATERIALS TRANSACTIONS JIM | 1996年 / 37卷 / 05期
关键词：
HDDR; nitrogenation; Sm-2(Fe; V)(17); TbCu7; type; Sm-3(Fe; V)(29); disproportionation reaction; recombination reaction;
D O I：
10.2320/matertrans1989.37.1228
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hydrogenation, Disproportionation, Desorption, Recombination (HDDR) phenomena have been studied in the new magnetic phase, Sm-3(Fe,V)(29). Samples of Sm-3(Fe,V)(29) were HDDR treated at various temperatures, from 700 degrees C to 950 degrees C. XRD measurements showed that the samples did not recombine into Sm-3(Fe,V)(29), but rather, recombined into a mixture of a TbCu7 type phase and alpha-Fe(V). An extra XRD peak was observed after HDDR at 950 degrees C and it is possible that this extra peak can be attributed to Sm-2(Fe,V)(17), since heating Sm-3(Fe,V)(29) directly to 1100 degrees C under hydrogen, results in recombination into Sm-2(Fe,V)(17) and alpha-Fe(V). Material with an intrinsic coercivity of 580 kAm(-1) (7.3 kOe) was obtained after HDDR treatment at 800 degrees C and nitrogenation at 560 degrees C for 4 hours.
引用
收藏
页码：1228 / 1231
页数：4
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