Lee, S. T. Jo, Y. H. Kim, H. E. Youn, D. H. Choi, I. J. Key, S. H. Kang, C. -Y. Hong, W. S. Cho, Y. S. 2024-01-20T19:00:26Z 2024-01-20T19:00:26Z 2021-09-05 2010-08 1743-6753 https://pubs.kist.re.kr/handle/201004/131212 Uncommon low loss Mg1.5Zn0.5SiO4 ceramics containing Bi2O3 were investigated by focusing on the roles of Bi2O3 on phase evolution and resultant microwave dielectric properties. While the primary goal of lowering sintering temperature can be easily assumed, some unexpected behaviours of the Bi2O3 containing materials are highlighted with experimental evidences concerning selective dissolution of Zn2SiO4 and grain boundary segregation of gradual Bi richer phases. These evidences are strongly dependent on the content of Bi2O3 and sintering temperature. As an optimal composition, Mg1.5Zn0.5SiO4 with 0.5 mol.-% Bi2O3 exhibited promising dielectric properties of a k value similar to 6.8 and a Qxf value similar to 23 300 at a sintering temperature of 1150 degrees C, which is much lower than typical sintering temperature of 1450 degrees C. English MANEY PUBLISHING FORSTERITE CERAMICS ZNO Grain boundary segregation and microwave dielectric properties of low loss Mg1.5Zn0.5SiO4 ceramics containing Bi2O3 Article 10.1179/174367609X455995 1 ADVANCES IN APPLIED CERAMICS, v.109, no.6, pp.367 - 372 ADVANCES IN APPLIED CERAMICS 109 6 367 372 scie scopus 000280950600011 2-s2.0-77955698843 Materials Science, Ceramics Materials Science Article FORSTERITE CERAMICS ZNO Titanates Glass-ceramic Microwave dielectric Densification