(MgxZn1-x)2SiO4 System Microwave Dielectric Ceramics

The Mg2SiO4type microwave ceramics in (MgxZn1-x)2SiO4 system were prepared. The experimental results indicate that the sintering temperature of (MgxZn1-x)2SiO4 system was reduced with the replacement between Mg2+ and Zn2+. And with the increasing of x value, the major crystalline phases were transformed from single willemite to coexisting willemite and forsterite, and finally single forsterite. Among all samples, （Mg0.7Zn0.3）2SiO4 exhibited the best properties of sintering temperature(1 400 ℃), dielectric constant (εγ=6.75) and dielectric loss (tan σ=1.86×10-3).