Phase Analysis of the Si-O_2 System

机译：Si-O_2系统的相位分析

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In this work the equilibrium temperature-composition phase diagrams of the Si-O_2 system were calculated using Thermo-Calc software in the temperature range 500-3000 K. Constituents of stable phases were obtained, and the amounts of certain phases where investigated with the variations in the composition of oxygen and temperature. It is found that quartz with silicon represent a stable phase in the temperature range 500-1150 K, while tridymite with silicon represent a stable phase in the temperature range 1150-1700 K. A liquid phase is found besides tridymite in the temperature range 1700-1750 K, and a stable phase of cristobalite with liquid appears in the temperature range 1750-2000. The maximum amounts of quartz, tridymite, and cristobalite are found at oxygen mole percent of 67.7%. These results are important to better understand the process steps in the production of silicon for different applications including silicon solar cells.

机译：在这项工作中，使用温度范围500-3000K的温度范围在500-3000K的温度范围内获得Si-O_2系统的平衡温度 - 组合相图。获得稳定相的成分，以及随着变化研究的某些阶段的量在氧气和温度的组成中。发现具有硅的石英代表温度范围为500-1150k的稳定相，而具有硅的TridyMite在1150-1700k k的温度范围内表示稳定相。除了1700-1700-除了TridyMite之外，还发现液相。 1750 k，液体稳定的液相稳定，液体出现在1750-2000的温度范围内。在氧气摩尔％的67.7％中发现最大量的石英，TridyMite和Cristobalite。这些结果对于更好地了解在包括硅太阳能电池的不同应用中生产硅的工艺步骤非常重要。

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《Energy Technologies Symposium》|2017年|499p|共10页
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作者
Shadia J. Ikhmayies;
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中图分类 TK01-53;
关键词
Quartz; Equilibrium; Phase diagrams; Silicon; Silicon solar cells;

机译：石英;平衡;相图;硅;硅太阳能电池;

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Phase Analysis of the Si-O_2 System

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