Crystallization characteristics of iron-rich glass ceramics prepared from nickel slag and blast furnace slag

作     者：Zhong-jie Wang Wen Ni Ke-qing Li Xiao-yan Huang Li-ping Zhu 

作者机构：School of Civil and Environmental Engineering University of Science and Technology Beijing Beijing 100083 China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2011年第18卷第4期

页      面：455-459页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0806[工学-冶金工程] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0822[工学-轻工技术与工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 082202[工学-制糖工程] 

主　　题：glass ceramics grain growth crystallization slag 

摘      要：The crystallization process of iron-rich glass-ceramics prepared from the mixture of nickel slag（NS） and blast furnace slag（BFS） with a small amount of quartz sand was investigated.A modified melting method which was more energy-saving than the traditional methods was used to control the crystallization *** results show that the iron-rich system has much lower melting temperature,glass transition temperature（Tg）,and glass crystallization temperature（Tc）,which can result in a further energy-saving *** results also show that the system has a quick but controllable crystallization process with its peak crystallization temperature at 918°*** crystallization of augite crystals begins from the edge of the sample and invades into the whole *** crystallization process can be completed in a few minutes.A distinct boundary between the crystallized part and the non-crystallized part exists during the *** the non-crystallized part showing a black colour,some sphere-shaped augite crystals already exist in the glass matrix before samples are heated to *** the crystallized part showing a khaki colour,a compact structure is formed by augite crystals.