Fangzheng Chen, Xinsheng Xia, Matthew E. McKenzie, K. F. Kelton
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引用次数: 0
Abstract
Synchrotron X-ray scattering and neutron scattering experiments are used to study structural changes in BaO∙2SiO2 glasses that were in situ isothermally heated at multiple temperatures. The temperatures selected cover the nucleation temperature range in this glass. No systematic trend in the scattering results was observed as a function of either temperature or isothermal time in the neutron scattering results. In the synchrotron X-ray scattering experiments, the peak heights of the structure factor increased with increasing annealing time, indicating structural ordering, but only at the lowest temperature. A technique that jointly combines reverse Monte Carlo and molecular dynamics simulations is used to reveal the source of the structural ordering with annealing.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
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