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.
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Zheng, H., Xu, R. & Mackenzie, J.D. Glass formation and glass structure of BiO1.5–CuO–Ca0.5Sr0.5O system. Journal of Materials Research 4, 911–915 (1989). https://doi.org/10.1557/JMR.1989.0911
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DOI: https://doi.org/10.1557/JMR.1989.0911