以氮化铝粉、钼粉为原料,采用放电等离子烧结(SPS)技术制备了AlN-18％Mo复合陶瓷.采用X射线衍射(X-ray diffraction,XRD)仪、扫描电镜(Scanning electron microscope,SEM)、介电频谱(Dielectric frequencyspectrum)分析研究了低熔点金属Fe对复合陶瓷导电性能及介电性能的影响.结果表明,随着低熔点金属Fe含量的增加,复合陶瓷的渗流转变温度逐渐降低,添加1％(体积分数)Fe,AlN-18％(体积分数)Mo复合陶瓷的渗流转变温度降低了90℃；随着低熔点金属Fe含量的增加,AM18复合陶瓷的介电常数、损耗逐渐增加,并从复合材料的显微结构及介电理论方面对以上结果给予解释.
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