Publication Date:
2016-02-09
Description:
A novel low-temperature sintering microwave dielectric based on forsterite (Mg 2 SiO 4 ) ceramics was synthesized through the solid-state reaction method. The effects of LiF additions on the sinterability, phase composition, microstructure, and microwave dielectric properties of Mg 2 SiO 4 were investigated. It demonstrated that LiF could significantly broaden the processing window (~300°C) for Mg 2 SiO 4 , and more importantly the sintering temperature could be lowered below 900°C, maintaining excellent microwave dielectric properties simultaneously. The 2 wt% LiF-doped samples could be well-sintered at 800°C and possessed a ε r ~ 6.81, a high Q×f ~ 167 000 GHz, and a τ f ~ −47.9 ppm/°C, having a very good potential for LTCC integration applications.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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