Effect of high energy ball milling washing process on properties of Nd2Fe14B particles obtained by reduction-diffusion

被引：3

作者：

Galkin V. ^{[1
,2
,3
]}

Haider K. ^{[2
,3
]}

Ahn J. ^{[2
,3
]}

Kim D. ^{[2
,3
]}

机构：

[1] Materials Science and Engineering Department, Peter the Great Saint Petersburg Polytechnic University, 29, Polytechnicheskaya, St. Petersburg

[2] Convergence research center for development of mineral resources, Korea Institute of Geoscience and Mineral Resources, 124, Gwahakro, Yuseonggu, Daejeon

[3] Powder & Ceramics Division, Korea Institute of Materials Science, 797, Changwondaero, Seongsangu, Changwon, 51508, Gyeongnam

来源：

Key Engineering Materials | 2019年 / 822卷

关键词：

Calciothermic reduction; Hard magnetic particles; High-energy ball milling; Nd[!sub]2[!/sub]Fe[!sub]14[!/sub]B; Rare earth;

D O I：

10.4028/www.scientific.net/KEM.822.244

中图分类号：

学科分类号：

摘要：

. Nd2Fe14B particles were obtained from mixture of neodymium oxide, iron oxide, boric acid and CaH2 by reduction-diffusion process. Two different washing processes were used for the separation of magnetic particles from Ca and CaO matrix: usual washing with water and planetary ball milling process in ethanol media. Nd2Fe14BHx hydrogenated state was formed after usual washing with water. Ethanol planetary ball milling washing procedure prevented the formation of Nd2Fe14B hydrides during washing. Variation of milling parameters allowed producing particles with different morphology such as spherical or flakes after planetary ball milling washing process. Influence of milling parameters on magnetic properties of Nd2Fe14B powder was investigated. © 2019 Trans Tech Publications Ltd, Switzerland.

引用

页码：244 / 251

页数：7

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