X-ray diffraction studies of phase transformations in heavy-metal fluoride glasses |
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| Authors: | Narottam P. Bansal Robert H. Doremus |
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| Affiliation: | (1) Materials Engineering Department, Rensselaer Polytechnic Institute, 12181 Troy, New York, USA |
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| Abstract: | The crystallization of five ZrF4-based glasses has been investigated using powder X-ray diffraction and differential scanning calorimetry. The crystalline phase in Zr-Ba-La-Pb fluoride glass was found to be -BaZrF6. In other glasses the crystal phases could not be identified. Reversible polymorphic phase transformations occur in Zr-Ba-La-Li and Zr-Ba-La-Na fluoride glasses when heated to higher temperatures. |
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