Anisotropic (Sm,Pr)1Co5 based nanoflakes fabricated by high-energy ball milling in polar milling medium

被引：16

作者：

Wang, Fengqing ^{[1
]}

Hu, Xiaojie ^{[1
]}

Li, Xiaohong ^{[1
,2
]}

Huang, Guangwei ^{[1
]}

Zhang, Yongmei ^{[1
]}

Zhang, Xiangyi ^{[1
]}

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

[2] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 589卷

基金：

美国国家科学基金会;

关键词：

Nanostructured material; Anisotropy; Surfactant-assisted ball milling; Nanoflake; Ethanol; Polyvinylpyrrolidone; MAGNETIC-PROPERTIES; SINGLE-CRYSTAL; SUBMICRON; FLAKES;

D O I：

10.1016/j.jallcom.2013.11.200

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Anisotropic (Sm,Pr)(1)Co-5 based nanoflakes with a low aspect ratio, small in-plane size, pronounced (00l) out-of-plane texture, and high room temperature coercivity were fabricated by high-energy ball milling with ethanol and polyvinylpyrrolidone as polar milling medium. The effect of milling time on the crystal microstructure, morphology, and magnetic properties of milled flakes were investigated. With increasing milling time from 2 to 40 h, the thickness and in-plane size of milled flakes reduce monotonously, while a low aspect ratio of 5-50 and a strong (00l) out-of-plane texture are preserved. The coercivity of milled flakes increases gradually even when the flake thickness reaches a nanometer scale. After 40 h milling, the textured nanocrystalline flakes have a thickness of 40 nm, a small in-plane size of 0.2-2 mu m, and a high coercivity of 12.2 kOe, which are advantageous for the preparation of textured exchange-spring magnets and eddy-current-resistant magnets. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：283 / 287

页数：5

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