Novel temperature stable and low-fired Li2Mg3SnO6-Ca0.9Sr0.1</ sub>TiO3 composite ceramics

作者：Fu, Zhifen; Ma, Jianli^*; Liu, Peng

来源：Journal of Alloys and Compounds, 2018, 752: 354-358.

DOI：10.1016/j.jallcom.2018.04.171

• Dielectric properties
• Microstructure
• Li2Mg3SnO6
• Composite ceramics

New temperature stable 4 wt% LiF-doped (1-x)Li2Mg3SnO6-xCa(0.9)Sr(0.1)TiO(3) (LMS-CST, x= 0.20, 0.23, 0.26, 0.29) composite ceramics were fabricated by solid-state reaction for low-temperature co-fired ceramics (LTCC) applications. Sintering temperatures of LMT-CST ceramics were successfully lowered to 925 degrees C due to LiF liquid-phase sintering. A near zero of tau(f) value was obtained by tuning CST composition. 0.74LMS-0.26CST-4wt% LiF ceramics displayed well-densifled microstructures with a relative density of 96.5% and excellent microwave dielectric properties of epsilon(r) = 17.5, Q x f= 21250 GHz, tau(f )= -5 ppm/degrees C at 925 degrees C. The good chemical compatible with Ag electrodes further promises that such samples were suitable for developing LTCC applications in wireless communication systems.

• 出版日期2018-7-5
• 单位陕西师范大学; 安徽理工大学