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低居里点突变型PTC材料的研究
引用本文:喻力华,薛谦忠.低居里点突变型PTC材料的研究[J].电子元件与材料,1994,13(4):14-16.
作者姓名:喻力华  薛谦忠
作者单位:华中理工大学
摘    要:以(Ba(0.6)Sr(0.4))TiO_3为基质,掺杂Y三价施主元素及AST,选用最佳烧制工艺,制成了具有较低室温电阻率及较优电阻温度系数的低居里点(~0℃)突变型PTC材料。研究了材料的阻温特性与各种工艺条件以及室温电阻率与掺杂量的关系。

关 键 词:低居里点热敏电阻材料,阻温特性,正温度系数,室温电阻率

On a Sudden-changing PTC Material with Low Curie Point
Yu Lihua, Xue Qianzhong, Zhang Duanming et al.On a Sudden-changing PTC Material with Low Curie Point[J].Electronic Components & Materials,1994,13(4):14-16.
Authors:Yu Lihua  Xue Qianzhong  Zhang Duanming
Affiliation:Yu Lihua; Xue Qianzhong; Zhang Duanming et al
Abstract:A (Ba0.6, Sr0.4) TiO3-based and Trivalent donors and AST doped sudden-changing PTC material with lower resistivity at the room temperature, better TCR and low Curie point (near 0℃) has been manufactured through selection of optimal firing technology. Resistivity-temperature characteristic of the material and dependences of it's room temperature resistivity and technological parameters on the dopants are discussed.
Keywords:Thermistor material with low Curie point  resistivity-temperature characteristic  positive temperature coefficient  room temperature resistivity
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