Hits:

Indexed by:期刊论文

Date of Publication:2014-05-01

Journal:JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL

Included Journals:SCIE

Volume:21

Issue:5

Page Number:517-520

ISSN No.:1006-706X

Key Words:anisotropy; mechanical alloying; nanostructure; magnetic-field ball milling; 2: 17 type SmCo alloy

Abstract:A new preparation method of Sm2Co17, nanoflakes was investigated. Hard magnetic Sm2Co17 nanoflakes with thickness of 20-100 nm were obtained by milling in heptane and oleic acid under a magnetic field of 1. 5 T for 0.5-20 h. It was shown that higher anisotropic magnetic properties would be induced by the flake-shape anisotropy when the prepared Sm2Co17, particles are milled with a magnetic field. The magnetic anisotropy of flakes after being aligned under the magnetic field of 1. 5 T could be further enhanced, and the value of (BH)(m), was 128 kJ center dot m(-3) Both anisotropy and properties are better than those of the nano-particles milled without a magnetic field.