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Effects of Borosilicate Glass on Densification and Properties of Borosilicate Glass + TiO2 Ceramics

Published online by Cambridge University Press:  31 January 2011

Jau-Ho Jean  and
Shih-Chun Lin
Jau-Ho Jean
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
Shih-Chun Lin
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
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Abstract

Effects of borosilicate glass (BSG) on densification and dielectric and thermal expansion properties of a binary composite of BSG + TiO2 ceramics have been investigated. Two different phases of TiO2 including anatase and rutile are used. A much greater densification is observed with anatase because it has a much better wetting with BSG than rutile. With increasing BSG content, the densification of BSG + TiO2 increased. Activation analysis shows that the densification is controlled by viscous flow of BSG. Both dielectric constant and coefficient of thermal expansion of the binary composite of BSG + TiO2 increase with decreasing BSG content and increasing the degree of anatase-to-rutile transformation, as well.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 4 , April 1999 , pp. 1359 - 1363
Copyright
Copyright © Materials Research Society 1999

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