Bismuth Phosphate Glasses
- 1 May 1970
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 53 (5) , 258-261
- https://doi.org/10.1111/j.1151-2916.1970.tb12088.x
Abstract
Homogeneous glasses are formed in the Bi2O3‐P2O5 system up to 35 mol% (63.8 wt%) Bi2O3. In property vs composition plots, the thermal expansion coefficient and tan δ exhibit minima, and hardness and activation energy for conduction show maxima at about 20 mol% Bi2O3. The deformation temperature of the glasses also increases abruptly at this composition. This anomalous behavior is interpreted in terms of a change in the function of Bi3+ ions from network formers to network modifiers.Keywords
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