王英敏

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:香港城市大学

学位:博士

所在单位:材料科学与工程学院

电子邮箱:apwangym@dlut.edu.cn

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Nanoporous L1(0)-FePt with high coercivity

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论文类型:期刊论文

发表时间:2019-03-15

发表刊物:SCRIPTA MATERIALIA

收录刊物:SCIE

卷号:162

页面范围:5-8

ISSN号:1359-6462

关键字:Nanoporous metals; L1(0)-FePt; Nanocomposite magnets; Coercivity; Electrochemical etching

摘要:We demonstrate the synthesis of a novel nanoporous ordered face-centered tetragonal FePt (L1(0)-FePt) compound by selective dissolution of an Fe60Pt10B30 nanocomposite alloy, which consists of nanoscale L1(0)-FePt and Fe2B phases. The Fe2B phase is selectively removed from the alloy by electrochemical etching in H2SO4 aqueous solution, while the preserved L1(0)-FePt phase forms a uniform open bicontinuous interpenetrating ligament-channel structure with a ligament size of similar to 15 nm. The nanoporous L1(0)-FePt alloy possesses a high coercivity of 18.5 kOe. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.