Preparation and characterization of NiCuZn ferrite nanocrystalline powders by auto-combustion of nitrate-citrate gels

被引：171

作者：

Yue, ZX ^{[1
]}

Li, LT ^{[1
]}

Zhou, J ^{[1
]}

Zhang, HG ^{[1
]}

Gui, ZL ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram Fine Proc, Beijing 100084, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1999年 / 64卷 / 01期

关键词：

auto-combustion; nanocrystalline particles; NiCuZn ferrite; sol-gel process;

D O I：

10.1016/S0921-5107(99)00152-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel nitrate-citrate gel process was used to synthesize NiCuZn ferrite powders. The thermal decomposition and combustion process of nitrate-citrate gels were investigated by using DTA-TG, IR spectra and XRD techniques. The results revealed that the nitrate-citrate gels exhibit self-propagating behavior after ignition in air at room temperature. NiCuZn ferrite powders with a particle size of 20-50 nm were directly formed after combustion. The ratio of metal nitrates to citric acid in the starting solution affects the combustion process, and then determines the particle size of the as-synthesized powder. The magnetic structure of powders was characterized using Mossbauer spectroscopy. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：68 / 72

页数：5

共 19 条

[1] TEMPERATURE SYNTHESIS AND SOME PHYSICAL-PROPERTIES OF BARIUM-SUBSTITUTED LANTHANUM MANGANITE (LA1-XBAXMNO3) [J].