Effect of soluble Cr2O3 on the silicate network, crystallization kinetics, mineral phase, microstructure of CaO-MgO-SiO2-(Na2O) glass ceramics with different CaO/MgO ratio
Effect of soluble Cr2O3 on the silicate network, crystallization kinetics, mineral phase, microstructure of CaO-MgO-SiO2-(Na2O) glass ceramics with different CaO/MgO ratio
复制标题
可溶性Cr2O3对不同CaO/MgO比CaO-MgO-SiO2-(Na2O)微晶玻璃硅酸盐网络、结晶动力学、矿相及显微结构的影响
DOI：
10.1016/j.ceramint.2019.02.106
复制
发表时间：
2019-06
影响因子：
5.2
通讯作者：
Qu Zhenmin
中科院分区：
文献类型：
--
作者：
Zhang Shuai;Zhang Yanling;Qu Zhenmin
Cr2 O3常作为玻璃添加剂用于制备微晶玻璃。铬元素在微晶玻璃中主要存在于含铬尖晶石和玻璃基体中的可溶性铬两种形式。本文研究了可溶性铬对CaO-MgO-SiO2-（Na_2 O）系统玻璃的影响。采用拉曼光谱、X射线衍射、扫描电子显微镜、能谱仪对玻璃和微晶玻璃进行了表征。研究发现，Cr_2O_3的加入增加了玻璃网络中的Q_2Si结构单元，特别是在MgO含量较高的系统中。Cr2 O3的加入提高了体系的晶化温度。可溶性铬的玻璃系统的结晶活化能略有降低，但没有改变其结晶行为（表面结晶）。随着MgO含量的增加，微晶玻璃的物相逐渐由硅灰石向透辉石转变。Cr2 O3降低了矿物相的晶格常数。Cr2 O3的加入对高MgO含量的微晶玻璃系统的晶粒细化和结构致密化有显著的影响。
Cr2O3is often used as a glass additive to prepare glass ceramics. Chromium element exists mainly in two parts in the glass ceramics: chromium-containing spinel and soluble chromium in glass matrix. Herein, effect of soluble chromium on the CaO-MgO-SiO2-(Na2O) glass system is researched. Glass and glass ceramics were characterized by Raman spectrum, X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry. It is found that the addition of Cr2O3increased the Q2si structure unit in glass networks, especially in glass systems with high MgO content. The crystallization temperatures of the systems were increased with the addition of Cr2O3. Soluble chromium reduced the crystallization activation energy of the glass system slightly, but did not alter its crystallization behavior (surface crystallization). With the increase of MgO content, the mineral phases of the glass ceramics gradually changed from wollastonite to diopside. Cr2O3reduced the lattice parameters of the mineral phases. The addition of Cr2O3has a significant effect on grain refinement and structural compactness of the glass ceramics system with high MgO content.
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影响因子：
3.1
作者：
B. O. Mysen;D. Virgo;C. Scarfe;D. Cronin
通讯作者：
B. O. Mysen;D. Virgo;C. Scarfe;D. Cronin
DOI：
10.1016/j.calphad.2008.09.009
发表时间：
2009-06-01
影响因子：
2.4
作者：
Bale, C. W.;Belisle, E.;Petersen, S.
通讯作者：
Petersen, S.
影响因子：
3.9
作者：
Yu Shi;Bao-wei Li;Ming-Yue Zhao;Mingxing Zhang
通讯作者：
Yu Shi;Bao-wei Li;Ming-Yue Zhao;Mingxing Zhang
DOI：
10.1111/j.1744-7402.2009.02419.x
发表时间：
2011
影响因子：
2.1
作者：
M. Rezvani;V. Marghussian;B. Eftekhari Yekta
通讯作者：
M. Rezvani;V. Marghussian;B. Eftekhari Yekta
DOI：
10.1524/zkri.1929.69.1.168
发表时间：
1929-10
期刊：
Zeitschrift für Kristallographie - Crystalline Materials
影响因子：
--
作者：
B. Warren;W. Lawrence Bragg
通讯作者：
B. Warren;W. Lawrence Bragg