中国激光, 2009, 36 (9): 2413, 网络出版: 2009-10-09
(Ta2O5)1-x(TiO2)x基陶瓷介电温度系数激光热补偿改性研究
Study of Dielectric Temperature Coefficient of (Ta2O5)1-x(TiO2)x Based Ceramics Modified by Laser Thermal Compensation
激光技术 陶瓷 负温度系数 激光烧结 退火 laser technigue ceramics negative temperature coefficient laser sinter annealing
摘要
简要介绍了(Ta2O5)1-x(TiO2)x基陶瓷(x分别为0.3，0.4和0.5)的激光烧结技术。提出激光烧结和氧气退火相结合可以实现(Ta2O5)1-x(TiO2)x基负温度系数材料的热补偿，使其介电温度系数接近零。采用X射线衍射仪(XRD)与扫描电子显微镜(SEM)分析了炉烧样品、激光烧样品及其退火样品的介电性能。实现热补偿与氧缺位的变化有关，从而导致其温度系数的变化。
Abstract
Laser sinter technique for (Ta2O5)1-x(TiO2)x (x is 0.3, 0.4 and 0.5, respectively) based ceramics was briefly introduced in this paper. Thermal compensation of (Ta2O5)1-x(TiO2)x based negative temperature coefficient materials could be allowed by combination of laser sinter and annealing in oxygen, which tuned their dielectric temperature coefficient nearly to zero. Dielectric properties of specimens prepared by conventional sintering, laser sintering and its annealing sample in oxygen were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results showed that thermal compensation of the negative temperature coefficient materials related to the oxygen defect, and led to the change of their temperature coefficients.
王宝军, 季凌飞, 蒋毅坚. (Ta2O5)1-x(TiO2)x基陶瓷介电温度系数激光热补偿改性研究[J]. 中国激光, 2009, 36(9): 2413. Wang Baojun, Ji Lingfei, Jiang Yijian. Study of Dielectric Temperature Coefficient of (Ta2O5)1-x(TiO2)x Based Ceramics Modified by Laser Thermal Compensation[J]. Chinese Journal of Lasers, 2009, 36(9): 2413.
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