用软化学过程制备高性能片式电感材料  

SOFT CHEMISTRV ROUTE TO THE PREPARATION OF LOW-TEMPERatURE SINTERED FERRITES FOR HIGH-PERFORMANCE MULTILAYER CHIP INDUCTORS

作　　者：周济[1] 王晓慧[1] 岳振星[1] 马振伟[1] 桂治轮[1] 李龙土[1] 

机构地区：[1]清华大学材料系新型陶瓷与精细工艺国家重点实验室

出　　处：《材料研究学报》2001年第1期23-28,共6页Chinese Journal of Materials Research

基　　金：八六三计划新材料领域资助项目!863-715133-06

摘　　要：通过软化学过程－凝胶自燃烧和柠檬酸络合法合成高活性铁氧体纳米微粉或先驱体，实现了无助烧剂 Ｎｉ－Ｚｎ—Ｃｕ铁氧体的低温烧结，解决了平面六角结构铁氧体的纯相合成和低温烧结技术难题，研制出两大类具有细晶显微结构特征的高磁导率低温烧结 Ｎｉ－Ｚｎ—Ｃｕ铁氧体和平面六角结构软磁铁氧体材料．A novel gel auto-combustion method was developed to synthesize nano-sized Ni-Zn-Cu ferrite powders. A series of low-temperature sintered Ni-Zn-Cu ferrites with high permeability and fine microstructures were prepared at temperature of lower than 900°C by using the synthesized powders. The polymerized complex method was used to synthesize hexaferrite powders for the preparation of Z-type hexaferrites. Several low-temperature sintered Z-type hexaferrites, which can be used in high frequency range, were prepared using the synthesized single-phase hexaferrites. Two types of low-temperature sintered ferrites can be used for high-performance multilayer chip inductors.

关 键 词：多层片式电感 镍锌铜铁氧体 柠檬酸络合法 Z型平面六角铁氧体 溶胶-凝胶 低温烧结 

分 类 号：TM277[一般工业技术—材料科学与工程] TM934.4[电气工程—电工理论与新技术]