Interface engineering constructs oxide composite bulkγ'-Fe_(4 )N magnetic alloys with high resistivity:Superior magnetization and manufacturability

作     者：Wanjia Li Wangchang Li Yao Ying Jing Yu Jingwu Zheng Liang Qiao Juan Li Shenglei Che Wanjia Li;Wangchang Li;Yao Ying;Jing Yu;Jingwu Zheng;Liang Qiao;Juan Li;Shenglei Che

作者机构：College of Materials Science and EngineeringZhejiang University of TechnologyHangzhou 310014China Research Center of Magnetic and Electronic MaterialsZhejiang University of TechnologyHangzhou 310014China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2024年第175卷第8期

页      面：212-222页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by National Natural Science Foundation of China(No.52071294),National Key Research and Development Program(No.2022YFE0109800) Natural Science Foundation of Zhejiang Province(No.LY20E020015) Key Research and Development Program of Zhejiang Province(No.2021C01172) 

主　　题：Compositeγ’-Fe_(4)N bulk Nitriding mechanism SPS Saturation magnetization Resistivity 

摘      要：Soft magnetic material with high saturation magnetization(Ms)and high resistance(ρ)is vital to improve the power density and conversion efficient of modern electrical magnetic ***,increasing Ms is always at the expense of high resistivity,such as soft magnetic alloys substitute for the *** this work,the superior comprehensive electromagnetic properties,namely the close association of high saturation magnetization and high resistivity,are combined in a new way in a newly Fe-N based magnetic materials.A high resistance oxide interface engineering was constructed between the conducting ferromagnetic phases in the process of spark plasma sintering(SPS)to achieve superior electromagnetic *** ZnO compositeγ’-Fe_(4) N bulk has a maximum resistivity of 220μΩ cm and a Ms of up to 156.02 emu/g,while the TiO_(2)compositeγ’-Fe_(4) N bulk has a maximum resistivity of 379μcm and a Ms of 149.7 emu/*** research findings offer valuable insights for the advancement of the next generation of soft magnetic materials,which hold significant potential for use in high-frequency,high-efficiency,and energy-saving power equipment applications.