Structure of CaO-B_2O_3-SiO_2-TiO_2 Glasses: a Raman Spectral Study

Zhen WANG; Qifeng SHU; Kuochih CHOU

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Structure of CaO-B_2O_3-SiO_2-TiO_2 Glasses: a Raman Spectral Study

机译：CaO-B_2O_3-SiO_2-TiO_2玻璃的结构：拉曼光谱研究

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Development and application of fluorine free mould fluxes have been widely studied in recent years. Some research has shown that B_2O_3 and TiO_2 are potential substitutes for F~ in mold fluxes. In this study, Structure of CaO-B_2O_3-SiO_2-TiO_2 glass system has been studied by Raman spectroscopy. The influence of basicities (CaO/SiO_2) and contents of B_2O_3 and TiO_2 on the structure of CaO-B_2O_3-SiO_2-TiO_2 glasses were examined. Experimental results indicate that TiO_2 exists in the system in the form of [TiO_4] as network former in range of 0-15% in mass. The degree of polymerization of this system decreases with increase of basicities. The increase of B2O3 leads to more [BO_4] tetrahedral units. It is concluded that both B_2O_3 and TiO_2 behave as network forming oxides within the studied system.

机译：近年来，无氟防霉剂的开发和应用得到了广泛的研究。一些研究表明，B_2O_3和TiO_2是脱模剂中F〜的潜在替代物。通过拉曼光谱研究了CaO-B_2O_3-SiO_2-TiO_2玻璃体系的结构。研究了碱度（CaO / SiO_2），B_2O_3和TiO_2含量对CaO-B_2O_3-SiO_2-TiO_2玻璃结构的影响。实验结果表明，TiO_2以[TiO_4]的形式存在于体系中，其质量为0-15％。该体系的聚合度随着碱度的增加而降低。 B2O3的增加导致更多的[BO_4]四面体单元。可以得出结论，在所研究的系统中，B_2O_3和TiO_2均作为网络形成氧化物。

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来源
《ISIJ international》 |2011年第7期|p.1021-1027|共7页
作者
Zhen WANG; Qifeng SHU; Kuochih CHOU;
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作者单位

Department of Physical Chemistry of Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083 China;

Department of Physical Chemistry of Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083 China;

Department of Physical Chemistry of Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083 China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
mould fluxes; structure; raman spectroscopy; b_2o_3; tio_2;

机译：脱模剂结构体;拉曼光谱b_2o_3;tio_2;

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7. Structure of CaO–B2O3–SiO2–TiO2 Glasses: a Raman Spectral Study [O] . Zhen Wang, Qifeng Shu, Kuochih Chou 2011

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Structure of CaO-B_2O_3-SiO_2-TiO_2 Glasses: a Raman Spectral Study

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