Enhanced structural and magnetic properties of microwave sintered Li-Ni-Co ferrites prepared by sol-gel method

被引：4

作者：

Nilima, Nandeibam ^{[1
]}

Maisnam, M. ^{[2
]}

Phanjoubam, Sumitra ^{[3
]}

机构：

[1] Oriental Coll, Dept Phys, Imphal 795001, Manipur, India

[2] NIT Manipur, Dept Phys, Imphal 795004, Manipur, India

[3] Manipur Univ, Dept Phys, Imphal 795003, Manipur, India

来源：

CHINESE PHYSICS B | 2019年 / 28卷 / 02期

关键词：

lithium ferrites; sol-gel chemistry; magnetic properties; x-ray diffraction; SUPEREXCHANGE INTERACTION; ZN FERRITES; SPINELS;

D O I：

10.1088/1674-1056/28/2/026101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The properties of lithium ferrites are very sensitive to chemical composition, synthesis method, and sintering techniques. Li-Ni-Co ferrites with compositional formula Li0.45-0.5xNi0.1CoxFe2.45-0.5xO4, where 0.00 <= x <= 0.1 in steps of 0.02 were prepared by chemical sol-gel method and sintered by microwave sintering technique. The x-ray diffraction patterns confirmed the formation of single phase with spinel structure in all the samples. The structural parameter viz. lattice constant, crystallite size, and x-ray density for these samples were studied and compared with those measured from samples of similar composition prepared by the sol-gel method and sintered by conventional sintering technique. Enhancement in the magnetic properties like Curie temperature, hysteresis parameters was observed by employing sol-gel synthesis combined with microwave sintering. The results obtained and mechanisms involved are discussed in the paper.

引用

页数：5

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