Bulk nucleated fine grained mono-mineral glass-ceramics from low-silica fly ash
Bulk nucleated fine grained mono-mineral glass-ceramics from low-silica fly ash
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DOI：
10.1016/j.ceramint.2008.01.002
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发表时间：
2009-03
影响因子：
5.2
通讯作者：
K. Vasilopoulos;D. Tulyaganov;S. Agathopoulos;M. Karakassides;J. Ferreira;D. Tsipas
中科院分区：
文献类型：
--
作者：
K. Vasilopoulos;D. Tulyaganov;S. Agathopoulos;M. Karakassides;J. Ferreira;D. Tsipas
以低硅粉煤灰为原料，添加SiO2、Al2O3和MgCO3，通过两步成核和晶体生长热处理，制备了Cr2O3成核普通辉石微晶玻璃。起始玻璃接近CaMg_（0.75）Al_（0.4）Fe_（0.1）Si_（1.75）O_6的组成，其衍生自CaMg_（0.75）Al_（0.5）Si_（1.75）O_6，属于透辉石-Ca-Tschermak固溶体。Cr2O3的影响（高达0.75wt. %）研究了不同晶化温度下微晶玻璃的结构和性能。
Cr2O3-nucleated fine grained mono-mineral glass-ceramics of augite were produced from low-silica fly ash and additives of SiO2, Al2O3and MgCO3, via two steps of heat treatment for nucleation and crystal growth. The starting glass approached the composition of CaMg0.75Al0.4Fe0.1Si1.75O6, derived from CaMg0.75Al0.5Si1.75O6, which belongs to diopside – Ca-Tschermak solid solutions. The influence of Cr2O3(up to 0.75wt.%) on the development of crystalline phases, the properties and the microstructure of the resultant glass-ceramics crystallized at different temperatures was investigated.