Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics

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	Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics
其他题名	Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics
	Liu Jun; Ou Yang; Xu Changwei; Qi Hong
	2008
发表期刊	JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
ISSN	1000-2413
卷号	23 期号:6 页码:883-888
摘要	A Cao-Mgo-Al(2)O(3)-SiO(2) quaternary system was established with the main crystal phase design based on Diopside, and the effect of once-through sintering heat treatment on microstructure of iron tailings glass ceramics was studied by using DTA, SEM along with measurement of microhardness and volume density. The experimental results show that, when the total amount of FeO and Fe(2)O(3) exceeds 10wt%, a large number of fine nuclei are produced in the annealing process, and the phenomenon of nucleus resorption happens during the process of nucleation heat treatment, which is unfavorable for preparing iron tailings glass ceramics through once-through sintering method. When the annealing temperature from 1250 degrees C to 830 degrees C, setting crystallization time for 4h, without heat treatment, crystals are well grown with arrangement and interlocking in glass phase. At 830 degrees C the crystals are well developed, well distributed and of good size; with crystallization time of 4 h the crystals with radial shape have high content and regular arrangement.
其他摘要	A Cao-Mgo-Al_2O_3-SiO_2 quaternary system was established with the main crystal phase design based on Diopside, and the effect of once-through sintering heat treatment on microstructure of iron tailings glass ceramics was studied by using DTA, SEM along with measurement of microhardness and volume density. The experimental results show that, when the total amount of FeO and Fe_2O_3 exceeds 10wt%, a large number of fine nuclei are produced in the annealing process, and the phenomenon of nucleus resorption happens during the process of nucleation heat treatment, which is unfavorable for preparing iron tailings glass ceramics through once-through sintering method. When the annealing temperature from 1250 ℃ to 830 ℃, setting crystallization time for 4h, without heat treatment, crystals are well grown with arrangement and interlocking in glass phase. At 830 ℃ the crystals are well developed, well distributed and of good size; with crystallization time of 4 h the crystals with radial shape have high content and regular arrangement.
关键词	one-time sintering heat treatment glass ceramics microstructure
收录类别	CSCD
语种	英语
资助项目	[State Administration of Foreign Experts Affairs] ; [Younger Natural Science Foundation of Liaoning]
CSCD记录号	CSCD:3585638
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/154547
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Liu Jun,Ou Yang,Xu Changwei,et al. Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics[J]. JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION,2008,23(6):883-888.
APA	Liu Jun,Ou Yang,Xu Changwei,&Qi Hong.(2008).Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics.JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION,23(6),883-888.
MLA	Liu Jun,et al."Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics".JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION 23.6(2008):883-888.