【摘要】 制备了具有不同组成分布的ＰＺＴ复合热释电陶瓷材料．复合材料从低温铁电相（ＦＲＬ）到高温铁电相之间的相变区域比较宽．对三组份复合材料而言，在３０～４６℃之间，其热释电系数达到１４×ｌ０－７Ｃ／Ｋ·ｃｍ２，比同一系统中线性热释电效应的数值高三倍．更多还原

【Abstract】 Pyroeleotric ceramic composite with different compositions was prepared. The pyroelectric coefficient of the composite can reach to 1.4×10-7C/K·cm2 within the temperature region from 30～46℃.The temperature region of FRL-FRH phase transition of the composite ceramic material is much wider than that of a single composition ceramic material. The value of pyroelectric coefficient is three times higher than that of a material with linear pyroelectric effect.更多还原