Microwave dielectric properties of Pb2MoO5 ceramic with ultra-low sintering temperature

作者：Xie, Huidong^*; Xi, Haihong; Li, Fei; Chen, Chao; Wang, Xiaochang; Zhou, Di

来源：Journal of the European Ceramic Society, 2014, 34(15): 4089-4093.

DOI：10.1016/j.jeurceramsoc.2014.05.004

• Double lead molybdate
• Scanning electron microscopy
• Microwave dielectric properties
• Sintering behavior

Ultra-low firing microwave dielectric ceramic Pb2MoO5 with monoclinic structure was prepared via a conventional solid state reaction method. The sintering temperature ranged from 530 degrees C to 650 degrees C. The relative densities of the ceramic samples were about 97% when the sintering temperature was greater than 570 degrees C. The best microwave dielectric properties were obtained in the ceramic sintered at 610 degrees C for 2 h with a permittivity similar to 19.1, a Q x f value about 21,960 GHz (at 7.461 GHz) and a temperature coefficient value of -60 ppm/degrees C. From the X-ray diffraction, backscattered electron image results of the co-fired samples with 30 wt% silver and aluminum additive, the Pb2MoO5 ceramics were found not to react with Ag and Al at 610 degrees C for 4 h. The microwave dielectric properties and ultra-low sintering temperature of Pb2MoO5 ceramic make it a promising candidate for low temperature co-fired ceramic applications.

• 出版日期2014-12
• 单位西安建筑科技大学; 西安交通大学