Thermodynamically Consistent p鈥?i>T Phase Diagram of Boron Oxide B2O3 by in Situ Probing and Thermodynamic Analysis

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• 作者：Vladimir L. Solozhenko ; Oleksandr O. Kurakevych ; Yann Le Godec ; Vadim V. Brazhkin
• 刊名：Journal of Physical Chemistry C
• 出版年：2015
• 出版时间：September 3, 2015
• 年：2015
• 卷：119
• 期：35
• 页码：20600-20605
• 全文大小：405K
• ISSN：1932-7455

文摘

Although boron oxide B₂O₃ is an archetypical glass-forming substance of large industrial and fundamental importance, its phase diagram remains controversial. In the present work, the p鈥?i>T phase diagram of B₂O₃ has been constructed based on in situ experimental data up to 8 GPa and 1900 K and thermodynamic analysis. In contrast to the previous studies, the proposed phase diagram represents only thermodynamic equilibria (reversible transformations in experiments) between crystalline (伪, 尾) and liquid states, not influenced by kinetic phenomena.