高极化钛酸钡陶瓷中的赝热电电流  

PSEUDO-PYROELECTRIC CURRENT IN HIGH-POLED BARIUM TITANATE CERAMICS

作　　者：李晓峰[1] 彭毅萍[1] 张沛霖[1] 钟维烈[1] 

机构地区：[1]山东大学物理系

出　　处：《硅酸盐学报》1998年第1期64-68,共5页Journal of The Chinese Ceramic Society

基　　金：国家863计划新材料领域资助

摘　　要：对铁电陶瓷在其Ｃｕｒｉｅ温度以上施加直流电场称为“高极化”．本研究提出了一个高极化陶瓷的简化模型，计算了赝热电电流与温度的关系以及恒定温度下该电流随时间的变化．计算结果与实验符合．The application of a DC electric field to a ferroelectric ceramic above its Curie temperature is termed “high-poling”. In this paper, a simplified model for high-poled ceramics was proposed. The pseudo-pyroelectric current as a function of temperature and its evolution with time at constant temperature were calculated. The results are consistent with the experimental.

关 键 词：铁电陶瓷 高极化 赝热电电流 钛酸钡陶瓷 

分 类 号：TM220.44[一般工业技术—材料科学与工程]