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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.120  No.1404 (August) (2012)  >  pp.324-329

Journal of the Ceramic Society of Japan
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Sintering, crystallization, and properties of a low-viscosity SnO–MgO–P2O5 glass filled with (Co0.5Mg0.5)2P2O7 ceramic: influence of filler particle size

Jiin-Jyh SHYU1), Wen-Yu LIN1)
1) Department of Materials Engineering, Tatung University

The coefficients of thermal expansion (CTE) of low-viscosity phosphate sealing glasses are too high to match low-CTE materials such as silicon. In this study, a low-viscosity SnO–MgO–P2O5 (SMP) glass powder was mixed with 15 vol % of a negative thermal expansion cobalt-magnesium pyrophosphate (Co0.5Mg0.5)2P2O7 (CMP) ceramic filler to reduce the thermal expansion of the sealing material. The influences of the addition of CMP filler and the CMP particle size on the sintering, crystallization, and the resulting properties of the CMP-filled SMP composites were investigated. It was discovered that the decrease in CMP particle size decreases the effectiveness of CTE reduction of the sintered composites, the crystallization tendency of SMP glass, the softening temperature of the sintered composites, and the resistance to flow above the softening temperature.

Phosphate glass, Ceramic filler, Thermal expansion, Crystallization, Low viscosity

Received: May 05, 2012
Accepted: June 27, 2012 , Published online: August 01, 2012
Copyright © 2012 The Ceramic Society of Japan



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