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Optimization of borosilicate glass/CaTiO 3 ‐TiO 2 composite via altering prefiring temperature and particle size
Author(s) -
Ren Luchao,
Luo Xianfu,
Xia Yunsheng,
Hu Yongkang,
Zhou Hongqing
Publication year - 2018
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13057
Subject(s) - materials science , borosilicate glass , sintering , ceramic , composite number , composite material , particle size , miniaturization , shrinkage , dielectric , particle (ecology) , chemical engineering , nanotechnology , optoelectronics , oceanography , geology , engineering
Low‐temperature co‐fired ceramic ( LTCC ) with middle permittivity is very crucial to the miniaturization of components. Based on our previous study on the glass/CaTiO 3 ‐TiO 2 composite, prefiring temperature and particle size of CaTiO 3 ‐TiO 2 ceramic were optimized in this study to promote the performance of the composites. Comparing with our previous study, after being sintered with 50 wt% glass at 875°C, CaTiO 3 ‐TiO 2 ceramic prefired at 1275°C with particle size of 3.38 μm showed excellent properties of sintering density = 3.33 g/cm 3 , ε r = 30.2, tan δ = 0.0005 (7 GH z). In addition, surface roughness of green tapes was also improved after optimization. The material has a good chemical stability and shrinkage matching with silver, making it a very promising candidate material for LTCC applications.