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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 日本东北大学金属材料研究所 客座教授 日本城西国际 客座教授
性别：男
毕业院校：日本东北大学
学位：博士
所在单位：材料科学与工程学院
学科：材料学. 材料加工工程. 材料物理与化学
办公地点：大连理工大学材料学院
联系方式：0411-84706063 http://anam.dlut.edu.cn
电子邮箱：wzhang@dlut.edu.cn
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.