成型压力对CZP陶瓷的影响及抗热震性能研究

The Relationship of the Pressure and the Properties of CaZr_(4)P_(6)O_(24) Peramic and Study on its Anti Thermal Shock Properties

研究了成型压力对CaZr_(4)P_(6)O_(24)(简称CZP)陶瓷的力学性能和介电性能的影响关系,实验结果表明:成型压力在100 MPa时陶瓷的综合性能(抗弯强度值为74.96 M Pa、介电常数为3.65、介质损耗0.0058)最好。将该CZP陶瓷进行抗热震性测试,将CZP陶瓷升温至1000℃,保温时间为1h,即取出放入20℃的水中10 min,烘干后在400倍显微镜下观察无裂纹出现,测试其剩余抗弯强度为70.46MPa,为测试前的94%,表明该材料具有良好的抗热震性能。

The relationship of the pressure and the bending strength and the dielectric properties of CaZr_(4)P_(6)O_(24)(abbreviated as CZP)ceramic were studied.The ceramic made under 100 MPa pressure has better comprehensive properties,which the value of bending strength is 74.96 MPa,the dielectric constant is 3.65 and the loss tangent is 0.0058.Anti thermal shock properties Of this CZP ceramic was tested.The temperature of CZP ceramic was rising to 1000℃,and temperature remaining time was 1 hour.The CZP ceramic was thrown into water of 20℃for 10 minutes,and it has no crack on the surface when observed in the 400×microscope.The remaining bending strength of the CZP ceramic is 70.46MPa,and the strength is the 94 percent of it before testing,the CZP ceramic has better anti thermal shock properties.