| 钒、钕对锂铝硅微晶玻璃析晶与着色的影响 |
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| 引用本文： | 李要辉,曹建尉,徐博,卢金山,梁开明.钒、钕对锂铝硅微晶玻璃析晶与着色的影响[J].稀有金属材料与工程,2009,38(Z2). |
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| 作者姓名： | 李要辉 曹建尉 徐博 卢金山 梁开明 |
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| 作者单位： | 1. 清华大学,北京,100084
2. 南昌航空大学,江西,南昌,330063 |
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| 基金项目： | 航空科学基金资助项目 |
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| 摘 要： | 分别引入V_2O_5、Nd_2O_3对透明Li_2O-Al_2O_3-SiO_2(LAS)微晶玻璃进行着色,并利用DTA、XRD、UV-VIS等方法分析钒、钕离子对玻璃晶化过程和着色性能的影响.实验发现,V_2O_5明显降低了玻璃析晶温度,且以V~(5+)形式存在,使玻璃呈浅黄色,微晶玻璃为红棕色,荷移吸收导致光谱吸收带向长波方向移动,而Nd~(3+)离子的4f轨道为5s~25p~6轨道所屏蔽,对析晶和着色性能影响较小.
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| 关 键 词： | 锂铝硅微晶玻璃 着色剂 析晶 |
Effect of Vanadium and Neodymium on Crystallization and Coloration of Transparent Li_2O-Al_2O_3-SiO_2 Glass-Ceramics |
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| Li Yaohui,Cao Jianwei,Xu Bo,Lu Jinshan,Liang Kaiming.Effect of Vanadium and Neodymium on Crystallization and Coloration of Transparent Li_2O-Al_2O_3-SiO_2 Glass-Ceramics[J].Rare Metal Materials and Engineering,2009,38(Z2). |
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| Authors: | Li Yaohui Cao Jianwei Xu Bo Lu Jinshan Liang Kaiming |
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| Affiliation: | Li Yaohui 1,Cao Jianwei1,Xu Bo1,Lu Jinshan2,Liang Kaiming 1 (1. Tsinghua University,Beijing 100084,China)(2. Nanchang Hangkong University,Nanchang 330063,China) |
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| Abstract: | The colored transparent Li2O-Al2O3-SiO2 glass-ceramics were prepared by addition of transition metal oxide V2O5 and rare-earth metal oxide Nd2O3 as coloration agents,and the effects of V5+ and Nd3+ on the crystallization and coloring behavior of LAS glass were analyzed using DTA,XRD and UV-VIS measurements. The results show that the crystallization temperature of V-doped glass was reduced significantly,which was mainly related to the V5+ which acted as network former and modifier,and the color changed from ... |
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| Keywords: | V_2O_5 Nd_2O_3 Li_2O-Al_2O_3-SiO_2 glass-ceramics V_2O_5 Nd_2O_3 colorant crystallization |
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