Sintering behavior and microwave dielectric properties of Li2O and In2O3 doped zinc orthosilicate

Sintering behavior and microwave dielectric properties of Li2O and In2O3 doped zinc orthosilicate having the composition of Zn1.9Si1.05O4, i.e. the Zn1.9-2xLixInxSi1.05O4 system where x = 0.01 similar to 0.06, were investigated. The liquid phase occurred by sintering contributed to the densification. As the amount of Li2O and In2O3 increased, the temperature indicating the maximum value of bulk density in each composition decreased from 1250 degrees C to 1050 degrees C. And the value of dielectric constant against sintering temperature showed a similar tendency. Also, the value of quality factor decreased as the amount of Li2O and In2O3 increased. The dielectric constant and the quality factor of the composition of x = 0.02 sintered at 1150 degrees C were 6.49 and 55,437 GHz, respectively.