Microwave Dielectric Properties of Scheelite Structured PbMoO4 Ceramic with Ultralow Sintering Temperature

摘要: In this work, a low-firing microwave dielectric ceramic PbMoO4 with tetragonal structure was prepared via solid-state reaction method. The sintering temperature ranges from 570°C to 670°C. Ceramic samples relative densities above 97% were obtained when around 600°C. best properties in the sintered at 650°C for 2 h permittivity ~26.7, Q × f value about 42 830 GHz (at 6.2 GHz) and coefficient of 6.2 ppm/°C. From X-ray diffraction, backscattered electron imaging results cofired sample 30 wt% silver aluminum additive, found not react Ag Al 630°C. low make it candidate low-temperature applications.