【作者】 王梦魁； 王志凡； 刘文磊；

【Author】 WANG Meng-kui;WEMG Zhi-fan;LIU Wen-lei Department of Physics, Jinzhou Teachers College, Jinzhou Liaoning, 121003, China Dandong Guotong Electronic Component Limited Company, Dandong Liaoning, 118002, China

【机构】 锦州师范学院物理系； 丹东国通电子元件有限公司；

【摘要】 叙述了新型SnO₂—CdO—WO₃系线性NTC（.negative temperature coeffcient）热敏陶瓷的制备方法,根据化学反应方程式设计出合理的配方,给出了该N型半导体的陶瓷的电子转移公式,分析了半导相CdSnO₃的导电机理。对影响温度-电阻曲线形状,常温（20℃）电阻率的大小及稳定性的多种因素如材料组成、热处理条件、升温速度、保温时间、烧结气氛等进行了深入的研究与分析。更多还原

【Abstract】 The preparation method of a new kind of SnO₂-CdO-WO₃ series linear NTC （negative temperaturecoefficent） thermal sensitive ceramics was related in this paper.According to the chemical equation, a reasonableformula was designed and the electron transfer formula of this N type semiconductor ceramics was given. Mechanismof the conduction of electricity of the semiconducting phase was analysed. Factors which affect temperature-resistancecharacteristic curve, normal atmospheric temperature resistivity （20℃）and stability,such as the composition ofmaterial, heat treatment condition, the speed of the temperature rising, heat preservation time and sintering atmospherewere further studied and analysed.更多还原