SHIH-HUNG LIN2026-10-162026-10-162006-12-01Pure ID: 15186074Pure UUID: 4a38272a-7263-4f03-ba67-1692c14edd4a10.1016/j.matlet.2006.03.067https://www.scopus.com/pages/publications/33750299612https://scholars.csmu.edu.tw/handle/123456789/25955The effects of ZnO addition on the microstructures and microwave dielectric properties of 0.8(Mg0.95Co0.05)TiO3-0.2Ca0.6La0.8/3TiO3 ceramics were investigated. ZnO was selected as liquid phase sintering aids to lower the sintering temperature of 0.8(Mg0.95Co0.05)TiO3-0.2Ca0.6La0.8/3TiO3 ceramics. With ZnO additives, the densification temperature of 0.8(Mg0.95Co0.05)TiO3-0.2Ca0.6La0.8/3TiO3 can be effectively reduced from 1450 to 1200-1325 °C. The crystalline phase exhibited no phase difference at low addition levels (0.25-2 wt.%). It is found that low-level doping of ZnO (0.25-2 wt.%) can significantly improve the density and dielectric properties of 0.8(Mg0.95Co0.05)TiO3-0.2Ca0.6La0.8/3TiO3 ceramics. The quality factors Q × f were strongly dependent upon the amount of additives. Q × f values of 36 000 and 13 000 GHz could be obtained at 1200-1325 °C with 1 and 2 wt.% ZnO additives, respectively. During all additives ranges, the relative dielectric constants were significantly different and ranged from 23.1 to 27.96. The temperature coefficient varies from 14.1-24.3 ppm/°C.5enjournal article