[1]任祥忠,张培新,梁? 讯,等.MgO-Al2O3-SiO2系统微晶玻璃晶化行为研究[J].深圳大学学报理工版,2007,24(3):299-304.
 REN Xiang-zhong,ZHANG Pei-xin,LIANG Xun,et al.Crystallization behaviors of MgO-Al2O3-SiO2glass-ceramics[J].Journal of Shenzhen University Science and Engineering,2007,24(3):299-304.
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MgO-Al2O3-SiO2系统微晶玻璃晶化行为研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第24卷
期数:
2007年3期
页码:
299-304
栏目:
化学与化工
出版日期:
2007-07-30

文章信息/Info

Title:
Crystallization behaviors of MgO-Al2O3-SiO2glass-ceramics
文章编号:
1000-2618(2007)03-0299-06
作者:
任祥忠张培新梁? 讯刘剑洪张黔玲罗仲宽
深圳大学化学与化工学院,深圳 518060
Author(s):
REN Xiang-zhongZHANG Pei-xinLIANG XunLIU Jian-hongZHANG Qian-lingand LUO Zhong-kuan
College of Chemistry and Chemical Engineering,Shenzhen University,Shenzhen? 518060,P.R.China
关键词:
MgO-Al2O3-SiO2系统玻璃晶核剂晶化行为
Keywords:
MgO-Al2O3-SiO2 glass-ceramicsnucleation agentcrystallization behaviors
分类号:
TQ 171
文献标志码:
A
摘要:
利用X射线衍射和扫描电镜研究MgO-Al2O3-SiO2系统微晶玻璃的晶化行为.结果表明,TiO2质量分数少于6%的玻璃,最先析出的是μ-堇青石,最终主晶相是α-堇青石,玻璃为表面析晶.TiO2质量分数为6%的玻璃,最先析出的是镁铝钛酸盐(MAT),最终主晶相是α-堇青石,玻璃为整体析晶.在950℃时开始检测到含锆相,在950~1100℃范围内表现为ZrO2/ TiO2固溶体形式.X射线衍射没有检测到其他含锆相.晶核剂TiO2和ZrO2是通过分相而影响玻璃晶化的,但ZrO2促进分相的能力略低于TiO2
Abstract:
The crystallization behaviors of MgO-Al2O3-SiO2 glass-ceramics were investigated by the method of X-ray diffraction (XRD) and scanning electron microscopy (SEM).Results show that when the addition of TiO2 was less than 6%,the primary crystalline phase was μ-cordierite and the final major phase was α-cordierite,glass began to crystallize from the surface.When the addition of TiO2 was 6%,the primary crystalline phase was magnesium aluminum titanate and the final major phase was α-cordierite,glass was bulk crystallization.The phase containing zirconium was detected first at 950℃.ZrO2 was in the form of Zr/Ti solid solution during 950~1000℃ in glass-ceramic and XRD did not detect other forms of zirconium.

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更新日期/Last Update: 2007-12-07