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Glass formation and glass structure of BiO1.5–CuO–Ca0.5Sr0.5O system

Published online by Cambridge University Press:  31 January 2011

Haixing Zheng ,
Ren Xu  and
J. D. Mackenzie
Haixing Zheng
Affiliation:
Department of Materials Science and Engineering, University of California–Los Angeles, Los Angeles, California 90024
Ren Xu
Affiliation:
Department of Materials Science and Engineering, University of California–Los Angeles, Los Angeles, California 90024
J. D. Mackenzie
Affiliation:
Department of Materials Science and Engineering, University of California–Los Angeles, Los Angeles, California 90024
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Abstract

The glass-forming region of the BiO1.5–CuO–Ca0.5Sr0.5O system has been determined by melting 5 g batches. Glass rods 4 mm in diameter and 75 mm long have been made. The glass transition temperatures (TG) and the onset crystallization temperatures (Tx) are around 390 °C and 440 °C, respectively. Densities of these glasses range from 5.5 to 7.0 g/cm3. The glass structure consists of the [BiO3] and [BiO6] units, and the conversion between these two polyhedra mainly depends on the Ca0.5Sr0.5O amount. The molecular volume of the glasses indicated that increasing Ca0.5Sr0.5O caused loose glass structures.

Type
Articles
Information
Journal of Materials Research , Volume 4 , Issue 4 , August 1989 , pp. 911 - 915
Copyright
Copyright © Materials Research Society 1989

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References

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