材料科学与工程学报2024，Vol.42Issue(3)：387-393,7.DOI:10.14136/j.cnki.issn1673-2812.2024.03.005
不同粒级铜尾矿对CaO-MgO-Al2O3-SiO2微晶玻璃析晶性能的影响
Effect of Copper Tailings with Different Sizes on Crystallization Properties of CaO-MgO-Al2O3-SiO2 Glass-ceramics
摘要
Abstract
Copper tailings with various particle sizes were melted to prepare CaO-MgO-Al2O3-SiO2(CMAS)glass ceramics.DSC,XRD,and SEM-EDS were used to examine the crystallization properties of glass ceramics.JMA equation was used to fit the crystallization kinetics features of glass ceramics,which were made from copper tailings with various particles.The various kinds and valence states of iron-bearing minerals in copper tailings have distinct effects on the crystallization of glass-ceramics.Fe2+-enriched minerals such as siderite,pyrite,and magnetite in copper tailings have no nucleation induction and promote the vitreous and intermediate phases.Therefore,the additional iron oxide of Fe3+has a stronger nucleation induction,and enhances the precipitation of the ferro-pyroxene crystal phase,increasing the characteristics of glass ceramics.关键词
铜尾矿/粒级/微晶玻璃/晶核剂/含铁矿物/析晶性能/析晶动力学Key words
Copper tailings/Graded/Glass ceramics/Nucleation agent/Mineral composition/Iron bearing minerals/Crystallization property/Crystallization kinetics分类
矿山工程引用本文复制引用
施麟芸,徐玉华,匡敬忠,魏琦..不同粒级铜尾矿对CaO-MgO-Al2O3-SiO2微晶玻璃析晶性能的影响[J].材料科学与工程学报,2024,42(3):387-393,7.基金项目
国家重点研发计划资助项目(2018YFC1903400 （）
2018YFC1903402) （）
