TiO_2/NiCuZn复合材料的电磁性能  

Electromagnetic Properties of TiO_2/NiCuZn Composites

作　　者：何欢[1] 邓平锋[1] 张怀武[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《磁性材料及器件》2007年第6期42-44,共3页Journal of Magnetic Materials and Devices

摘　　要：铁电铁磁复合材料是一种由铁电相和铁磁相复合而成的重要功能材料,将对电子设备的小型化和高度集成化起到相当关键的作用。研究以铁电性的TiO2和铁磁性的NiCuZn铁氧体为原料,采用固相反应法合成一系列TiO2/NiCuZn复合材料,考察了材料配比和烧结温度对复合材料介电性能和磁性能的影响。实验表明,随着TiO2含量的增加,复合材料的磁导率显著降低,但同时介电性能会得到改善。对于NiCuZn含量为80wt%的材料,在900～1200℃的烧结温度范围,随着烧结温度的升高介电常数与磁导率也都会随之升高。这种TiO2/NiCuZn复合材料同时具有电感和电容两种特性,有望在未来的集成电路中广泛使用。Ferroelectric-ferromagnetic composite material is an important functional material composed of both ferroelectric and ferromagnetic phase, which will play a key role in the miniaturization and integration of the electronic apparatus. A series of TiO2/NiCuZn composites was synthesized by solid-state reaction using TiO2 and NiCuZn as raw material, and the influence of proportion of the material and sintering temperature was researched, With the increase of the proportion of TiO2, the permittivity of the composite material increases and the permeability decreases gradually, At the sintering temperature range of 900 to 1200℃, with the increase of sintering temperature, the permittivity and permeability of the composite material increases for the compositions with NiCuZn content of 80wt%. The TiO2/NiCuZn composites exhibit both inductive and capacitive behavior, which will find wide applications in integrated circuits.

关 键 词：铁电/铁磁复合材料 TIO2 NICUZN铁氧体 磁导率 介电常数 

分 类 号：TM277[一般工业技术—材料科学与工程]