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。该式在应用上比加和法更为准确、方便。
From the conception of equivalent demagnetising field and the equivalent de-polarizing field,a new formula for calculating the properties of multiphase ceramiccomposites with macro homogeneity and isotropy has been derived This formulacan be applied to ferrite magnetic materials (two phases including a phase of pore),magnetic dielectric ceramic composites (three phases) and also dielectric ceramics(two phases).It can be found that the calculated result from the new formula canfit its experimental result very well.It can be concluded that this formula is moreaccurate and more convenient than those for additive method used before.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第3期225-232,共8页
Journal of Inorganic Materials
关键词
多相陶瓷
混合规律
Multiphase ceramics
Mixing law
Magnetic-dielectric material
