陶瓷介质滤波器故障分析与解决  

Fault Analysis and Solution of Ceramic Dielectric Filter

作　　者：张艳征 Zhang Yan-zheng(China Airborne Missile Academy,Henan Luoyang 471000)

机构地区：[1]中国空空导弹研究院,河南洛阳471000

出　　处：《电子质量》2020年第10期49-52,共4页Electronics Quality

摘　　要：该文根据失效案例分析了滤波器陶瓷介质本体开裂的原因,并验证了染色试验检验裂纹的有效性。结果显示:介质滤波器开裂失效是由于介质本体的成型异常或研磨异常产生的微小裂纹在后续使用过程中受到各种应力作用后扩展成宏观裂纹所致。可通过染色试验后用20倍显微镜检验的方法剔除不合格品。This paper analyzes the cracking reason of filter ceramic dielectric body through on a failure case,and verifies the validity of dyeing test to check the crack.The results show that the crack of the dielectric filter is caused by the macro crack formed by the micro crack subjected to various stresses in use,the micro crack is generated by the abnormal forming or grinding of the dielectric body.The unqualified products can be eliminated by the method of 20-fold microscope after dyeing test.

关 键 词：裂纹 成型 研磨 染色试验 

分 类 号：TN713.3[电子电信—电路与系统]