| Y2O3掺杂CaO-Al2O3-SiO2系微晶玻璃的研究 |
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| 引用本文： | 郑伟宏,程金树,全健,王洪成,楼贤春. Y2O3掺杂CaO-Al2O3-SiO2系微晶玻璃的研究[J]. 玻璃与搪瓷, 2007, 35(1): 1-5,10 |
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| 作者姓名： | 郑伟宏 程金树 全健 王洪成 楼贤春 |
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| 作者单位： | 武汉理工大学硅酸盐材料工程教育部重点实验室,湖北,武汉,430070 |
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| 摘 要： | 在CaO-Al2O3-SiO2(CAS)系统微晶玻璃中引入稀土氧化物Y2O3,结合XRD、SEM等测试手段,研究了Y2O3的引入对微晶玻璃烧结过程、微观结构以及性能的影响。实验结果表明:随着Y2O3的引入,微晶玻璃烧结温度降低,烧结时间变短。当Y2O3质量分数为3.25%时,CAS微晶玻璃具有最佳的制备工艺和最好的力学性能。
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| 关 键 词： | CaO-Al2O3-SiO2系微晶玻璃 稀土氧化物 Y2O3 掺杂 |
| 文章编号： | 1000-2871（2007）01-0001-05 |
| 修稿时间： | 2006-03-07 |
Crystallization and Properties of CaO-Al2O3-SiO2 System Glass-ceramics Doped with Y2O3 |
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| ZHENG Wei-hong,CHENG Jin-shu,QUAN Jian,WANG Hong-cheng,LOU Xian-chun. Crystallization and Properties of CaO-Al2O3-SiO2 System Glass-ceramics Doped with Y2O3[J]. Glass & Enamel, 2007, 35(1): 1-5,10 |
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| Authors: | ZHENG Wei-hong CHENG Jin-shu QUAN Jian WANG Hong-cheng LOU Xian-chun |
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| Abstract: | The crystallization behavior and mechanical properties of CaO-Al2O3-SiO2(CAS) system glass-ceramics doped with Y2O3 were investigated.Results show that the optimal sintering temperatures(TP) of all heat-treated glasses doped with Y2O3 were altered and the crystallization was accelerated.Only wollastonite as a main crystalline phase was precipitated.The results also suggested that the CAS glass-ceramics with addition in mass fraction of Y2O3 by 3.25% would get the lowest sintering temperature and the optimal microstructure.The bending strength would reach the maximum value due to the oriented and interlocked wollastonite crystals,which cause cracks that divert or blunt to limit the further development of the flaw and increase the surface energy of fracture. |
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| Keywords: | CaO-Al_2O_3-SiO_2 glass-ceramics rare-earth oxides Y_2O_3 doped |
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