SYNTHESIS AND MICROWAVE DIELECTRIC PROPERTIES OF Li_(2)MgSiO_(4)CERAMICS PREPARED USING CITRATE GEL ROUTE

查看全文 作　　者：[1]S.GEORGE;[1]V.K.SAJITH;[1]M.T.SEBASTIAN;[2]S.RAMAN;[2]P.MOHANAN 机构地区：[1]Materials and Minerals Division National Institute for Interdisciplinary Science and Technology Thiruvananthapuram 695019,India;[2]Department of Electronics,CUSAT Cochin 682022,India 出　　处：《Journal of Advanced Dielectrics》索引2011年第1卷第2期,共5页 摘　　要：The comparison of the low temperature sintering and the microwave dielectric properties of Li_(2)MgSiO_(4)(LMS)ceramics prepared by citrate gel(CG)route and solid state(SS)ceramic route are discussed in this paper.The LMS prepared using CG route sintered at 1175℃/2h hasε_(r)=5.3 and tanδ=1×10^(-3)at 9 GHz.The si ntering temperature of LMS is lowered to 950℃with the addition of 5 wt%lithium magnesium zinc borosilicate glass and hasε_(r)=5.6 and tanδ=2×10^(-3)at 9GHz.The amount of glass required to lower the sintering temperature of ceramics prepared using CG are slightly higher than that of Ss ceramic route.The LMS ceramics prepared using SS ceramic route shows excellent microwave dielectric properties with low sintering tem-perature compared to CG route. 关 键 词：Dielectrics ELECTROCERAMICS LTCC SUBSTRATES glass ceramic