TOPOTACTIC TECHNIQUE FOR THE PRODUCTION OF MECHANICALLY ORIENTED PLANAR HEXAFERRITES

被引：1

作者：

LICCI, F

ASTI, G

机构：

[1] Laboratorio MASPEC del C.N.R.

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1979年 / 15卷 / 06期

关键词：

D O I：

10.1109/TMAG.1979.1060359

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Polycrystalline oriented specimens of planar hexagonal ferrites, Ba2Co2XZn2−2XFe12O22, were obtained by chemical reaction of an oxide mixture containing a mechanically oriented component. The method was simply to subject to uniaxial pressure the starting mixture containing acicular particles of α-FeOOH, without any external magnetic field. The degree of orientation of sintered specimens depends on the preparation parameters and the chemical sample composition. The prepared samples were tested by magnetic and X-ray measurments and optical microscopy. The pressure was found to have a direct influence on the sample orientation, while the sintering temperature determined the grain dimensions and the final product quality. The best orientation is observed in Co rich samples. © 1979 IEEE

引用

页码：1867 / 1869

页数：3