TITLE

Rapidly solidified (FePt)70P30 alloy with high coercivity

AUTHOR(S)
Kündig, A. A.; Abe, N.; Ohnuma, M.; Ohkubo, T.; Mamiya, H.; Hono, K.
PUB. DATE
August 2004
SOURCE
Applied Physics Letters;8/2/2004, Vol. 85 Issue 5, p789
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The alloy Fe35Pt35P30, whose composition is close to a ternary eutectic, was rapidly solidified by melt spinning and the ribbon exhibited a high coercivity, exceeding 20 kOe after annealing. The alloy was mainly composed of L10 ordered FePt and PtP2 with an average grain size of about 50 nm. In the as-cast state, the alloy was comprised of about 20-nm-diam FePt and PtP2 grains supersaturated with P and Fe, respectively, and the coercivity was only 150 Oe. The high coercivity obtained following annealing is discussed on the basis of the microstructural observations.
ACCESSION #
13926094

 

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