高温NTC热敏电阻材料的研究进展  

Research progress of high temperature negative temperature coefficient thermistor materials

作　　者：李旭琼[1] 张廷玖[1,2] 骆颖[1] 刘心宇[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]空军空降兵学院五系,广西桂林541003

出　　处：《电子元件与材料》2015年第12期7-9,19,共4页Electronic Components And Materials

基　　金：国家自然科学基金资助(No.51462005);广西自然科学基金资助(No.2011GXNSFA018028)

摘　　要：高温NTC热敏电阻材料可制备用于汽车电子、军工、航天等领域超宽温区测温的热敏元件。概述了高温NTC热敏电阻材料的研究,主要集中在具有钙钛矿结构的材料体系以及材料的掺杂改性研究上。基于钙钛矿结构热敏材料NTC效应机理的解释大多集中在氧空位迁移模型、电子跃迁模型和渗流理论等方面,提出应用于高温宽温区测温的具有高电阻率低热敏常数特性的NTC热敏材料是高温NTC材料的发展方向。High temperature NTC thermistor materials are applicable in many fields such as automotive electronics, war industry and aerospace, for temperature measurement in ultra wide temperature range. It is introduced that the latest research of high temperature NTC thermistor materials focus on perovskite structure material systems and their substitute modification. The oxygen vacancy migration model, the electron hopping model and the percolation theory are most commonly used to explain the NTC effect of perovskite structure. It is proposed that NTC resistor materials with high resistivity and low thermal constant are developing direction of high temperature NTC materials, applied to temperature measurement and control in wide temperature range and high temperature.

关 键 词：热敏电阻材料 负温度系数 综述 钙钛矿结构 掺杂改性 两相复合 

分 类 号：TN304.1[电子电信—物理电子学]