双施主掺杂在高性能高温PTC制备中的应用  

Application of Double Donors in Making High Performance and High-curie PTC Ceramics

作　　者：郝永德[1] 钟海波[1] 熊炫[1] 雷浩[1] 龚树萍[1] 

机构地区：[1]华中科技大学电子科学与技术系,湖北武汉430074

出　　处：《仪表技术与传感器》2005年第5期9-10,共2页Instrument Technique and Sensor

摘　　要：Nb2O5和Y2O3单施主掺杂对高温PTC性能均有一些不利的影响。设计了Nb2O5和Y2O3双施主掺杂的配方,分析Nb2O5和Y2O3掺杂量在不同比例下对材料性能的影响,得出结果:在制备高性能的高温PTC时,适当的施主掺杂总量和适当的Nb、Y掺杂配比,可以改变PTC的性能,另外还讨论了在该配方下的工艺方案。Because the negative effect of Nb2O5 or Y2O3 single-donor on the high-temperature PTC ceramics, designed the prescription that double donors doped in,analysed the influence on material performance when the amount of Nb2O5 and Y2O3 mixing in different proportions,and finally drew the result:when preparing high-performance high-temperature PTC,the total amount of donor and the proportion of Nb and Y,can change the performance of PTC.In addition,discussed in the settlement of the craft under these prescription.

关 键 词：高温PTC 双施主掺杂 二次配料 

分 类 号：TN373[电子电信—物理电子学]