Effect of Na2O and CaO on the solubility and crystallization of Mo in borosilicate glasses

Zhou Junjie; Liao Qilong; Wang Fu; Wang Yuanlin; Zhu Hanzhen; Zhu Yongchang

首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Effect of Na2O and CaO on the solubility and crystallization of Mo in borosilicate glasses

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Effect of Na2O and CaO on the solubility and crystallization of Mo in borosilicate glasses

机译：Na2O和CaO对硼硅酸盐玻璃溶解度和结晶的影响

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The effect of Na2O and CaO on the solubility and crystallization of Mo in the conventional borosilicate glasses belonging to SiO2-B2O3-Na2O-CaO system was investigated. The results show that the solubility of Mo in the glasses reaches up to 2.98 mol%. The substitutions of cationic oxides ([Na2O]+[CaO]) for SiO2 and CaO for Na2O in the glass composition improve the solubility of Mo. The solubility and crystallization of Mo are related to the depolymerized regions of the glass structure. Generally, the improved solubility of Mo can be ascribed to the high depolymerization degree of glass structure and the loose distribution of ions in the depolymerized regions. Product consistency test (PCT) results show the crystalline CaMoO4 has insignificant influence on the normalized elemental leaching rate of Mo. The normalized leaching rates of the obtained samples are similar to 1(0-3) g.m(2).d(-1) after 28 days, which are comparable to widely used borosilicate waste glasses.

机译：研究了Na2O和CaO对SiO2-B2O3-Na2O-CaO系硼硅酸盐玻璃中钼的溶解和结晶的影响。结果表明，Mo在玻璃中的溶解度可达2.98mol%。在玻璃成分中，阳离子氧化物（[Na2O]+[CaO]）对SiO2和CaO对Na2O的取代提高了Mo的溶解度。Mo的溶解度和结晶与玻璃结构的解聚区有关。一般来说，Mo溶解性的提高可归因于玻璃结构的高度解聚和解聚区离子的松散分布。产品一致性试验（PCT）结果表明，结晶CaMoO4对钼的归一化元素浸出率影响不大。所得样品的归一化浸出率与1（0-3）g.m（2）相似。d（-1），这与广泛使用的硼硅酸盐废玻璃相当。

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《Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites》 |2021年第1期|共8页
作者
Zhou Junjie; Liao Qilong; Wang Fu; Wang Yuanlin; Zhu Hanzhen; Zhu Yongchang;
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作者单位

Southwest Univ Sci &

Technol Sch Mat Sci &

Engn State Key Lab Environm Friendly Energy Mat Mianyang 621010 Sichuan Peoples R China;

Southwest Univ Sci &

Technol Sch Mat Sci &

Engn State Key Lab Environm Friendly Energy Mat Mianyang 621010 Sichuan Peoples R China;

Southwest Univ Sci &

Technol Sch Mat Sci &

Engn State Key Lab Environm Friendly Energy Mat Mianyang 621010 Sichuan Peoples R China;

Southwest Univ Sci &

Technol Sch Mat Sci &

Engn State Key Lab Environm Friendly Energy Mat Mianyang 621010 Sichuan Peoples R China;

Southwest Univ Sci &

Technol Sch Mat Sci &

Engn State Key Lab Environm Friendly Energy Mat Mianyang 621010 Sichuan Peoples R China;

China Bldg Mat Acad Beijing 100024 Peoples R China;

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正文语种 eng
中图分类非晶态和类晶态;
关键词
Borosilicate glasses; Molybdenum; Solubility; Crystallization;

机译：硼硅酸盐眼镜;钼;溶解度;结晶;

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Effect of Na2O and CaO on the solubility and crystallization of Mo in borosilicate glasses

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