Preparation of Densified Fine-Grain High-Frequency MnZn Ferrite Using the Cold Sintering Process

被引：7

作者：

Ying, Yao ^{[1
,2
]}

Hu, Linghuo ^{[1
,2
]}

Li, Zhaocheng ^{[1
,2
]}

Zheng, Jingwu ^{[1
,2
]}

Yu, Jing ^{[1
,2
]}

Li, Wangchang ^{[1
,2
]}

Qiao, Liang ^{[1
,2
]}

Cai, Wei ^{[1
,2
]}

Li, Juan ^{[1
,2
]}

Bao, Daxin ^{[3
]}

Che, Shenglei ^{[1
,2
]}

机构：

[1] Zhejiang Univ Technol, Coll Mat Sci & Engn, Hangzhou 310014, Peoples R China

[2] Zhejiang Univ Technol, Res Ctr Magnet & Elect Mat, Hangzhou 310014, Peoples R China

[3] Hengdian Grp DMEGC Magnet Co Ltd, Dongyang 322118, Peoples R China

来源：

MATERIALS | 2023年 / 16卷 / 09期

基金：

中国国家自然科学基金;

关键词：

MnZn ferrite; cold sintering process; power loss; high frequency; HIGH PERMEABILITY; MAGNETIC-PROPERTIES; POWER APPLICATIONS; ZN FERRITES; ADDITIVES; MICROSTRUCTURE; DENSIFICATION; REGION; IR;

D O I：

10.3390/ma16093454

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：

The densified MnZn ferrite ceramics were prepared using the cold sintering process under pressure, with an acetate ethanol solution used as the transient solvent. The effects of the transient solvent, the pressure and annealing temperature on the density, and the micromorphology and magnetic properties of the sintered MnZn ferrites were studied. The densified MnZn ferrite was obtained using the cold sintering process and its relative density reached up to 85.4%. The transient solvent and high pressure are essential to the cold sintering process for MnZn ferrite. The annealing treatment is indispensable in obtaining the sample with the higher density. The relative density was further increased to 97.2% for the sample annealed at 950 ? for 6 h. The increase in the annealing temperature reduces the power loss at high frequencies.

引用

页数：12