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

✍ Scribed by Tomohito Maki; Satoshi Sugimoto; Toshio Kagotani; Koichiro Inomata; Jun Akedo

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 834 KB
• Volume: 158
• Category: Article
• ISSN: 0424-7760
• DOI: 10.1002/eej.20214

✦ Synopsis

Abstract

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 145µm was obtained under AD conditions of gas flow rate (gfr)=6liters/min for 10 min. The density of Sm‐Fe‐N films was in the range of 5.43 to 6.24g/cm^3^, that is, 71 to 81% of the X‐ray density of the Sm~2~Fe~17~N~3~ compound reported (7.67g/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 1.94µm to 0.32µm. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 158(1): 8–13, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20214