Magnetic properties of iron-based soft magnetic composites prepared via phytic acid surface treatment

被引：60

作者：

Zhang, Guodong ^{[1
]}

Shi, Guangyue ^{[1
]}

Yuan, Wentao ^{[1
]}

Liu, Yao ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 07期

关键词：

Films; Composites; Soft magnets; Magnetic properties; Functional applications; POWER LOSS SEPARATION; CONVERSION COATINGS; AMORPHOUS POWDER; HEAT-TREATMENT; CORROSION; MICROSTRUCTURE; INSULATION; FABRICATION; OXIDATION; BEHAVIOR;

D O I：

10.1016/j.ceramint.2020.11.245

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, phytic acid (PA) surface treatment was used to prepare iron-based soft magnetic composites (SMCs). The composition and microstructure of the SMCs were analyzed to assess changes in the magnetic properties. As the treatment time increased, the insulating layer on the powder surface gradually thickened, changing the internal morphology and conductive path of the annular samples after compacting. The changes in the magnetic properties and core loss were attributed to the increased resistivity and enhancement of the magnetic dilution effect. The optimal soft magnetic performance (mu(m) = 389, P-t = 235.1 mW/g measured at 100 kHz and 50 mT) was obtained by adjusting the processing time. This reduces the loss by 52.96% compared to the untreated sample and improves the application potential of soft magnetic composites at medium and high frequencies.

引用

页码：8795 / 8802

页数：8

共 36 条

[1] A newly synthesized glycine derivative to control uniform and pitting corrosion processes of Al induced by SCN- anions - Chemical, electrochemical and morphological studies [J].