HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >

Magnetic softening of Co doped α"-Fe16N2 containing residual Fe-Co alloy prepared in low temperature nitridation

Files in This Item:
JCSJ122 288-291.pdf1.39 MBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Magnetic softening of Co doped α"-Fe16N2 containing residual Fe-Co alloy prepared in low temperature nitridation
Authors: Masubuchi, Yuji Browse this author →KAKEN DB
Sato, Hiroaki Browse this author
Motohashi, Teruki Browse this author
Kikkawa, Shinichi Browse this author
Keywords: Iron nitride
Magnetic coercivity
Issue Date: Apr-2014
Publisher: Ceramic Society of Japan
Journal Title: Journal of The Ceramic Society of Japan
Volume: 122
Issue: 1424
Start Page: 288
End Page: 291
Publisher DOI: 10.2109/jcersj2.122.288
Abstract: Preparation and magnetic properties were investigated on the Co doped α"-Fe16N2 obtained in low temperature nitridation of bcc Fe1-xCox alloys to change its magnetic coercivity. The alloys were prepared by the reduction of (Fe1-xCox)(3)O-4 obtained by hydrolysis of iron and cobalt acetylacetonate mixture in benzyl alcohol. Fine powder of the pure spinel-type (Fe1-xCox)(3)O-4 was obtained in x = 0-0.05. The oxides were reduced to bcc Fe1-xCox alloy at 400 degrees C in H-2 gas and then nitrided at 150 C for 5 or 8 h under NH3 gas flow. XRD and X-ray absorption spectroscopy suggested the nominal α"-(Fe1-xCox)(16)N-2", similar to α"-Fe16N2" was obtained as a mixture with the residual bcc (Fe1-xCox) alloy at x = 0.03 as in the case of the nitrided product without cobalt. The present nitrided product exhibited a larger magnetization of 217Am(2) kg(-1) and a smaller magnetic coercivity of 30mT at x = 0.03 than those for the present products without the Co doping.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鱒渕 友治

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University