| 氮化硅α，β和γ相的解析状态方程和热物理性质 |
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| 引用本文： | 张超,孙久勋,田荣刚,邹世勇.氮化硅α，β和γ相的解析状态方程和热物理性质[J].物理学报,2007,56(10):5969-5973. |
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| 作者姓名： | 张超 孙久勋 田荣刚 邹世勇 |
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| 作者单位： | 电子科技大学物理电子学院,成都,610054 |
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| 基金项目： | 电子科技大学人才支持计划 |
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| 摘 要： | 对固体通用状态方程考虑热效应的Einstein模型进行修正，提出一种利用参考温度下的实验数据计算绝对零度下物质参数的方法，并用于Baonza方程以考虑热效应.结果表明，对于Baonza方程，零温下的参数可以解析地求解出来，常用的热物理量也可以推出解析表达式.将得出的公式用于研究氮化硅α，β和γ相的热物理性质.通过对文献的分析确定了这三种相的方程参数，计算的体积随压强变化和热膨胀系数随温度变化的结果与实验数据符合很好.
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| 关 键 词： | 氮化硅 状态方程 高压 热膨胀 |
| 收稿时间： | 2006-11-07 |
| 修稿时间： | 2006-11-07 |
Analytic equations of state and thermo-physical properties for the α, β, and γ-Si3N4 |
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| Zhang Chao,Sun Jiu-Xun,Tian Rong-Gang,Zou Shi-Yong.Analytic equations of state and thermo-physical properties for the α, β, and γ-Si3N4[J].Acta Physica Sinica,2007,56(10):5969-5973. |
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| Authors: | Zhang Chao Sun Jiu-Xun Tian Rong-Gang Zou Shi-Yong |
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| Institution: | School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | The Einstein model to consider thermal effect in universal equations of state is modified, and an approach to solve parameters at absolute zero temperature from experimental data at a reference temperature is proposed and applied to the Baonza equation. The thermal Baonza equation is applied to study thermo-physical properties of α, β and γ-Si3N4. Through analyzing experimental data in literature, the input data-set for the three phases are determined. The results calculated from the thermal Baonza equation is in agreement with available experimental data. |
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| Keywords: | Si3N4 equation-of-state high-pressure thermal expansions |
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