| SiO2-MgO-Al2 O3-F系玻璃陶瓷的析晶 |
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| 引用本文： | 田清波,翟玉春,王修慧,田丁,高宏.SiO2-MgO-Al2 O3-F系玻璃陶瓷的析晶[J].材料科学与工程学报,2001,19(2):66-68. |
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| 作者姓名： | 田清波 翟玉春 王修慧 田丁 高宏 |
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| 作者单位： | 1. 东北大学材料与冶金学院,
2. 大连铁道学院材料系, |
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| 摘 要： | 本文应用TEM,XRD和EDAX等技术,系统研究了SiO2-MgO-Al2O3-F系玻璃陶瓷的析晶过程.结果表明:在玻璃熔体的冷却过程中,由于弛豫作用而形成晶核,在随后的热处理过程中,中间相Mg2FB3和KAlSiO4以此核为中心析出;氟的存在促进了晶体的整体析出,而主晶相氟金云母在中间相的晶界处形核长大.
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| 关 键 词： | 玻璃陶瓷 形核 析晶 |
| 文章编号： | 1004-793(2001)02-0066-03 |
| 修稿时间： | 2000年6月14日 |
Crystallization of glass-ceramics in SiO2-MgO-Al2 O3-F system |
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| JIAN Qing bo ,ZHAI Yu chun ,WANG Xiu hui ,TIAN Ding ,GAO Hong.Crystallization of glass-ceramics in SiO2-MgO-Al2 O3-F system[J].Journal of Materials Science and Engineering,2001,19(2):66-68. |
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| Authors: | JIAN Qing bo ZHAI Yu chun WANG Xiu hui TIAN Ding GAO Hong |
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| Affiliation: | JIAN Qing bo 1,ZHAI Yu chun 1,WANG Xiu hui 2,TIAN Ding 2,GAO Hong 2 |
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| Abstract: | The crystallization of glass ceramics in SiO 2 MgO Al 2O 3 F system were studied by the techniques og XRD, TEM and EDAX. The results showed that in the glass system that we have studied the nucleus of crystal had formed when the melting of glass was cooled. And then the intermediate crystals, Mag\-2FBO\-3 and KAlSiO\-4 began to grow from the previously formed nuclei with heat treatment. The contents of fluorine were the causes of crystallization throughout the bulk of the glass and the major crystalline phase, fluorophlogopite (KMg\-3AlSi\-3O\- 10 F\-2)were precipitated at the boundary of the intermediate crystals. |
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| Keywords: | glass ceramics nucleation crystallization |
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