采用传统固相法对使用Mg取代一部分Zn形成的六方钛铁矿型无限固溶体(Zn0.9Mg0.1)TiO3陶瓷进行了低温烧结研究。低熔点玻璃ZnO-B2O3-SiO2(ZBS)的加入提高了烧结致密度,使烧结温度降低到900℃以下,制得了不含Zn2TiO4的单一六方(Zn0.9Mg0.1)TiO3相陶瓷,其微波介电性能优异。加入质量分数为0.5%的ZBS玻璃时,在900℃成瓷良好,介电常数εr=20.53,品质因数与频率的乘积Q×f=61 630GHz(f=7.4GHz)。
The low temperature sintering of (Zn0.9 Mg0.1 )TiO3 was studied by conventional solid-state reaction methods, adopting Mg substitute a part of Zn to form an ilmenite type infinite solid solution (Zn0.9 Mg0. 1 )TiO3. The low melting point glass ZnO-B2 O3-SiO2 (ZBS) significantly increased the density of (Zn0. 9 Mg0.1 ) TiO3 ceramics, and the sintering temperature was lowered to 900 ℃. Single (Zn0.9 Mg0.1)TiO3 phase ceramics was obtained, which had excellent microwave dielectric properties. By adding 0.5% ZBS glass,the ceramics could be well sintered at 900 ℃, the microwave dielectric properties were described as follows :εr = 20.53 ,Q×f=61 630 GHz( f= 7.4 GHz).