Abstract
The comparison of the low temperature sintering and the microwave dielectric properties of Li2MgSiO4 (LMS) ceramics prepared by citrate gel (CG) route and solid state (SS) ceramic route are discussed in this paper. The LMS prepared using CG route sintered at 1175 degrees C/2 h has epsilon(r) = 5.3 and tan delta = 1 x 10(-3) at 9 GHz. The sintering temperature of LMS is lowered to 950 degrees C with the addition of 5 wt% lithium magnesium zinc borosilicate glass and has epsilon(r) = 5.6 and tan delta = 2 x 10(-3) at 9 GHz. The amount of glass required to lower the sintering temperature of ceramics prepared using CG are slightly higher than that of SS ceramic route. The LMS ceramics prepared using SS ceramic route shows excellent microwave dielectric properties with low sintering temperature compared to CG route.