改性偏铌酸铅压电陶瓷高温特性及应用  

High-temperature Properties and Its Applications for Modified Lead Metaniobate Piezoelectric Ceramics

作　　者：周家光[1] 李承恩[1] 陈建和[1] 王志超[1] 卢永康[1] 

机构地区：[1]中国科学院上海硅酸盐研究所

出　　处：《无机材料学报》1996年第2期356-360,共5页Journal of Inorganic Materials

摘　　要：文章分析了ＰＮＣ—３型改性偏铌酸铅压电陶瓷的高温特性，并就其可能的应用进行了试验．ＰＮＣ－３型陶瓷具有高居里温度（５６２℃）和低Ｑｍ特性，有强耦合系数和大的Ｋｔ／Ｋｐ比值．已成功地制成耐高温抗辐射的ＡＥ传感器和宽频带换能器等器件，并将其高温性能与美国Ｄ９２１５型高温ＡＥ传感器进行了比较．The high-temperature properties of PNC-3 type modified lead metaniobate piezoelectric ceramics were analyzed. The outstanding character of high curie point, low mechanical Qm strong coupling factor and large Kt/Kp ratio made PNC-3 ceramics successfully applied to AE-sensor with standing higher temperature and γ-ray irradiation and to ultrasonic transducer with wide frequency-band. The paper also gave a comparison of the high temperature properties between AE-sensors of PNC-3 type and D9215-type from U.S.A.

关 键 词：压电陶瓷 传感器 改性 偏铌酸铅 高温特性 

分 类 号：TQ174.756[化学工程—陶瓷工业] TM282[化学工程—硅酸盐工业]