Effect of CuO Additive on Sintering and Microwave Dielectric Properties of Ca(Sm0.5Nb0.5)O3 Ceramics
LI Jia-mao QIU Tai FAN Chuan-gang，
School of Materials Science and Engineering, Anhui University of Technology College of Materials Science and Engineering, Nanjing University of Technology School of Materials Science and Engineering, Anhui University of Technology
Abstract：Ca(Sm0.5Nb0.5)O3 microwave dielectric ceramics with different contents of CuO sintering additive were prepared by conventional high-temperature solid state method, and the effects of CuO additive on the sintering, structure and microwave dielectric properties of Ca(Sm0.5Nb0.5)O3 ceramics were studied. The results show that the densification of Ca(Sm0.5Nb0.5)O3 grains could be improved and a reduction of sintering temperature (about 200℃) obtained by adding CuO into Ca(Sm0.5Nb0.5)O3 ceramics. At 1350℃ for 4 h, Ca(Sm0.5Nb0.5)O3 ceramics with 1.5%(w) CuO addition possess good microwave dielectric properties, relative dielectric constant er=23.98, product quality and frequency Q×f=27754.5 GHz and temperature coefficient of resonant frequency tf=-2.7×10-6 ℃-1.
李家茂 丘泰 樊传刚. 添加CuO对Ca(Sm0.5Nb0.5)O3陶瓷烧结和微波介电性能的影响[J]. , 2012, 12(6): 1043-1047.
LI Jia-mao QIU Tai FAN Chuan-gang;. Effect of CuO Additive on Sintering and Microwave Dielectric Properties of Ca(Sm0.5Nb0.5)O3 Ceramics. , 2012, 12(6): 1043-1047.
2012, Vol. 12 
