Microstructure and magnetic properties of aerosol-deposited Sm-Fe-N thick films

被引：3
|
作者：
Maki, Tomohito [1 ]
Sugimoto, Satoshi
Kagotani, Toshio
Inomata, Koichiro
Akedo, Jun
机构：
[1] Tohoku Univ, Sendai, Miyagi 980, Japan
[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan
来源：
ELECTRICAL ENGINEERING IN JAPAN | 2007年 / 158卷 / 01期
关键词：
aerosol deposition method; coercivity; grain size; microstructure; samarium iron nitride; thick film magnet;
D O I：
10.1002/eej.20214
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, the relationship among magnetic properties, Aerosol Deposition (AD) conditions, and microstructures in Sm-Fe-N AD films was investigated. The maximum thickness of 145 mu m was obtained under AD conditions of gas flow rate (gfr) = 6 liters/min for 10 min. The density of Sm-Fe-N films was in the range of 5.43 to 6.24 g/cm(3), that is, 71 to 81% of the X-ray density of the Sm2Fe17N3 compound reported (7.67 g/cm(3)). The Sm-Fe-N AD films showed remanence in the range of 0.38 to 0.42 T, that is, 61 to 68% of that of the Sm-Fe-N host powder (0.62 T). The coercivities increased from 1.16 to between 1.74 and 1.79 T after the deposition because the grain size decreased from 1.94 mu m to 0.32 mu m. (C) 2006 Wiley Periodicals, Inc.
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页码：8 / 13
页数：6
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