| 含磷零膨胀LAS透明微晶玻璃的相转变动力学研究 |
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| 引用本文： | 殷海荣,吕承珍,李慧,唐保军. 含磷零膨胀LAS透明微晶玻璃的相转变动力学研究[J]. 陕西科技大学学报, 2009, 27(2): 1-7 |
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| 作者姓名： | 殷海荣 吕承珍 李慧 唐保军 |
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| 作者单位： | 陕西科技大学材料科学与工程学院,陕西,西安,710021 |
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| 摘 要： | 以零膨胀Li2O-Al2O3-SiO2透明微晶玻璃为研究对象，采用示差扫描量热法（DSC）研究了无磷和含磷玻璃的析晶动力学和玻璃转变动力学行为．结果发现，引入少量的磷化物使得玻璃的析晶峰温度和玻璃转变温度降低，玻璃的析晶活化能和玻璃转变活化能增大，晶体生长指数n减小，使玻璃网络结构重排困难．
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| 关 键 词： | 析晶动力学 玻璃转变动力学 LAS微晶玻璃 |
THE EFFECT OF PHOSPHORUS ADDITION ON THE PHASE TRANSITION KINETICS IN LAS TRANSPARENT GLASS-CERAMICS |
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| YIN Hai-rong,LV Cheng-zhen,LI Hui,TANG Bao-jun. THE EFFECT OF PHOSPHORUS ADDITION ON THE PHASE TRANSITION KINETICS IN LAS TRANSPARENT GLASS-CERAMICS[J]. Journal of Shaanxi University of Science & Technology(Natural Science Edition), 2009, 27(2): 1-7 |
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| Authors: | YIN Hai-rong LV Cheng-zhen LI Hui TANG Bao-jun |
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| Affiliation: | (School of Material Science ＆ Engineering, Shaanxi University of Science ＆ Technology, Xi＇an 710021, China) |
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| Abstract: | The crystallization and glass transition kinetics of the Li2 O-A12 O3-SiO2 transparent glass ceramics which contains phosphorous and free phosphorous were investigated by the differential scanning calorimetric （DSC）, derivative differential scanning calorimetric （DDSC） and X-ray diffraction （XRD）. The results show the decreasing of crystallization peak temperature （Tp） and the glass transition temperature （Tg）. The crystallization active energy （E） and glass transition active energy （Eg） increase when the phosphorus pentoxide was added, at the same time, the Avrami exponent （n） decreases and glass network structure rearranges difficultly. |
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| Keywords: | crystallization kinetics glass transition kinetics LAS glass-ceramics |
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