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Effect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics
Alternative TitleEffect of Heat Treatment Method on Microstructure of Tailings Glass Ceramics
Liu Jun; Ou Yang; Xu Changwei; Qi Hong
2008
Source PublicationJOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
ISSN1000-2413
Volume23Issue:6Pages:883-888
AbstractA 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.
Other AbstractA 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.
Keywordone-time sintering heat treatment glass ceramics microstructure
Indexed ByCSCD
Language英语
Funding Project[State Administration of Foreign Experts Affairs] ; [Younger Natural Science Foundation of Liaoning]
CSCD IDCSCD:3585638
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/154547
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
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.
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