| Na2XO4(X=Cr、MO、W)固-固相变贮热的测定 |
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| 引用本文： | 赵睿新. Na2XO4(X=Cr、MO、W)固-固相变贮热的测定[J]. 化学工程师, 2002, 0(1): 30-31 |
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| 作者姓名： | 赵睿新 |
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| 作者单位： | 山西财经大学环境经济系,山西太原,030016 |
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| 摘 要： | 利用DTA－TG热分析技术研究了无机塑晶材料Na2XO4(X=Cr、Mo、W)的热性能，实验数据表明，三种材料是一种有前途的固－固相变贮热材料，其固－固相变贮热的机理是随着温度升高，三种晶体的晶格发生畸变，晶型由低对称的晶系向高对称的晶系转变，同时引入振动和转动无序，从而吸收热量。
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| 关 键 词： | 固－固相变 DTA方法 贮能材料 铬酸钠 钼酸钠 钨酸钠 Na2XO4 |
| 文章编号： | 1002-1124(2002)01-0030-02 |
| 修稿时间： | 2001-12-01 |
The Determination of Na2XO4( X = Cr、Mo、W) for Solid - Solid Phase Transitions in thermal Energy Storage |
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| Zhao Ruixin. The Determination of Na2XO4( X = Cr、Mo、W) for Solid - Solid Phase Transitions in thermal Energy Storage[J]. Chemical Engineer, 2002, 0(1): 30-31 |
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| Authors: | Zhao Ruixin |
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| Abstract: | DTA-TG was used to determine the thermal properties for solid-solid of inorganic plastic crystal Na 2XO 4(X=Cr?Mo?W).Experimental data showed that three materials is a prospective can didate materials for heat storage.The mechanism of Na 2XO 4(X=Cr?Mo?W)crystal for solid-solid phase transitions are known to transform from a low symmetric structure to a highly symmetric structure as the temperature in increased.The molecules in high temperature crystal are known to be rotationally and vibrationally disordered to absorb heat. |
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| Keywords: | Solid-Solid phase transitions DTA methods Thermal storage Sodium molybdate Sodium chromate Sodium tungstate |
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