| CaF2含量对CaO-SiO2-R2O-F系微晶玻璃晶化行为的影响 |
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| 引用本文： | 周曦亚,胡俊,周斌扬,刘林凤. CaF2含量对CaO-SiO2-R2O-F系微晶玻璃晶化行为的影响[J]. 硅酸盐通报, 2009, 28(5): 1024-1028 |
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| 作者姓名： | 周曦亚 胡俊 周斌扬 刘林凤 |
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| 作者单位： | 华南理工大学材料学院,广州,510640;华南理工大学材料学院,广州,510640;华南理工大学材料学院,广州,510640;华南理工大学材料学院,广州,510640 |
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| 摘 要： | 采用烧结法制备了CaO-SiO_2-R_2O-F(R=Na, K)系微晶玻璃,并结合XRD、DTA、SEM等测试方法,探讨了CaF_2含量对CaO-SiO_2-R_2O-F系微晶玻璃晶化行为的影响.结果表明:添加适量的CaF_2能有效地促进微晶玻璃的析晶.在一定热处理制度下,制备出的微晶玻璃内含大量互锁的板条状晶体和针状晶体,主晶相为硅碱钙石和Frankamenite(一种富含氟的硅碱钙石).随着CaF_2含量的增加,晶体的含量逐渐提高,晶体数量逐渐增大,尺寸逐渐减小.
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| 关 键 词： | 微晶玻璃 硅碱钙石 晶化行为 显微结构 |
Effect of Fluorine Content on Crystallization of CaO-SiO_2-R_2O-F Glass-ceramics |
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| ZHOU Xi-ya,HU Jun,ZHOU Bin-yang,LIU Lin-feng. Effect of Fluorine Content on Crystallization of CaO-SiO_2-R_2O-F Glass-ceramics[J]. Bulletin of the Chinese Ceramic Society, 2009, 28(5): 1024-1028 |
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| Authors: | ZHOU Xi-ya HU Jun ZHOU Bin-yang LIU Lin-feng |
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| Affiliation: | ZHOU Xi-ya,HU Jun,ZHOU Bin-yang,LIU Lin-feng(School of Material Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | CaO-SiO2-R2O-F(R=Na,K)glass-ceramic were prepared by sintering method in this paper.Influence of nucleation agent CaF2 on the crystallization behavior of canasite ceramic glasses had been investigated using differential thermal analysis(DTA),X-ray diffraction(XRD),and scanning electron microscopy(SEM).The results indicate that CaF2 can effectively prompt full crystallization.By means of suitable heat treatment,canasite glass-ceramics can be obtained with a randomly-oriented interlocking blade-like crystals ... |
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| Keywords: | glass-ceramics canasite crystallization behavior microstructure |
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