期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 20, 期 7, 页码 637-643出版社
SPRINGER
DOI: 10.1007/s10854-008-9778-y
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Five samples of glass/ceramic composites were prepared from borosilicate glasses and both nano-aluminum oxide and nano-titanium oxide. The glass composite samples contain 10, 20, 30, 40, 50 wt.% of alumina and titania mixture. The ratio of Al(2)O(3):TiO(2) in the mixture was 1:1. The formation of cristobalite in the glass matrix of low firing glass/ceramic composite substrates limits the efficiency of the ceramic substrate when it is used in circuit boards. In the present study, addition of both alumina and titania to a borosilicate glass as a ceramic filler caused the diffusion of alumina and titania phases (anatase and rutile) constituents into the glass matrix and prevented the formation of a cristobalite. Addition of both the ceramics suppresses cristobalite formation more effectively than one of them used alone and results in lower dielectric constant and thermal expansion coefficients.
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