| Li_2O-Al_2O_3-SiO_2系统微晶玻璃的晶化对其热学性质的影响 |
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| 引用本文： | 冯翠英,郑洪,赵明洲.Li_2O-Al_2O_3-SiO_2系统微晶玻璃的晶化对其热学性质的影响[J].分析测试学报,1991(4). |
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| 作者姓名： | 冯翠英 郑洪 赵明洲 |
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| 作者单位： | 同济大学测试中心
(冯翠英)，同济大学物理系
(郑洪)，同济大学物理系(赵明洲) |
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| 摘 要： | 用X光衍射方法确定了Li_2-Al_2O_3-SiO_2系统微晶玻璃中的结晶相,并由此得出其结晶度。用1090B热分析仪测量其热膨胀特性,得出了热膨胀和结晶度的关系,以及热膨胀和晶化温度的关系。用差热分析方法得出了微晶玻璃的比热几乎不随结晶度变化而变化的结论。
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| 关 键 词： | 结晶度 热膨胀 比热 |
Effect of the Crystallization in Li_2O-Al_2O_3-SiO_2 System Glagg-Ceramics on Their Thermal Properties |
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| Feng Cuiying,Zheng Hong,Zhao Mingzhou Analysis and Research Centre,Tongji University Pohl Institute of Solid State Physics,Tongji University.Effect of the Crystallization in Li_2O-Al_2O_3-SiO_2 System Glagg-Ceramics on Their Thermal Properties[J].Journal of Instrumental Analysis,1991(4). |
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| Authors: | Feng Cuiying Zheng Hong Zhao Mingzhou Analysis and Research Centre Tongji University Pohl Institute of Solid State Physics Tongji University |
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| Abstract: | The crystal phases in Li_2O--Al_2O_3--SiO_2 system glass-ceramics were determined by X-ray di-ffraction and then their crystallinities were obtained. The thermal expansion of glass--ceramics wasmeasured with the Thermal Analyzer 1090B. The relationship not only between thermal expan-sion and crystallinity but also between thermal expansion and crystallizing temperature is illustra-ted. DTA showed that specific heat of glass-ceramics hardly changes with crystallinity. |
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| Keywords: | Crystallinity thermal expansion specific heat crystallizing dynamics |
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