【摘要】 引入等效退极化场和等效退磁化场的概念,推导出了宏观均匀且各向同性的多相混合材料的性能计算式。将其应用于陶瓷介电材料(两相)、铁氧体磁性材料(两相)和混合介电—磁性材料(三相)(其中气孔均视为一相)的研究中,得到了理论与实验相吻合的结果。该式在应用上比既有的加和法则更为准确、方便。更多还原

【Abstract】 By the concepts of the equivalent demagnetising fieled and the equivalent depolarizing field,a new mixing law for multiphase cer- amic composite is derived.This mixing law can be applied to ferr- ite magnetic materials(two-phase),magnetic-dielectric ceramic composites(three-phase)and also dielectric-ceramics(two-phase) (including a phase of pore).It is found that the calculations from the mixing law can fit the experiments very well.It can be concluded that this mixing law is more acculate over any others.更多还原