Mullite-based ceramic tiles produced solely from high-alumina fly ash: Preparation and sintering mechanism
文献类型：期刊论文
| 作者 | Luo, Yang1,2; Ma, Shuhua1; Zheng, Shili1; Liu, Chunli1,2; Han, Dajie1,3; Wang, Xiaohui1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2018-01-25 |
| 卷号 | 732页码:828-837 |
| 关键词 | Mullite Ceramics Liquid-solid Reactions Sintering Kinetics Microstructure Mechanical Properties |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2017.09.179 |
| 文献子类 | Article |
| 英文摘要 | Mullite-based ceramic tiles were successfully prepared using only high-alumina fly ash (HAFA) at relatively low sintering temperatures (1100-1400 degrees C). The effects of alkali activation on the chemical composition, mineral phase, and morphology of the HAFA were respectively characterised by ICP-OES, XRD, and SEM methods. The alkali-activation pretreatment not only modifies the chemical composition of HAFA to match that of mullite, but also can introduce Na-rich compounds to promote sintering. The macroscopic and microscopic characteristics of the fully ash-based ceramic tiles formed at different sintering temperatures were examined. The ceramic samples sintered at 1300 degrees C exhibited optimal post-sintering properties (relative density: 90.85%, water absorption: 0.10%, rupture modulus: 109.67 MPa, linear shrinkage: 15.70%, and apparent porosity: 0.68%) and a well-developed cubic puncheon-shaped mullite morphology. Finally, through the isothermal sintering method, the melt viscosities and the sintering kinetics were calculated theoretically, and the results show that the alkali activation could dramatically reduce the melt viscosity and the apparent activation energy. This research may provide a new method in utilising the vast amounts of HAFA waste to produce mullite-based ceramic tiles at low costs. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | MAGMATIC SILICATE LIQUIDS ; HIGH-STRENGTH ; PHASE ; TEMPERATURE ; VISCOSITY ; COAL ; MELTS ; GLASS ; DENSIFICATION ; FABRICATION |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000415931900098 |
| 资助机构 | Major State Basic Research Development Program of China(2013CB632601) |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/23446]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Univ Chem Technol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yang,Ma, Shuhua,Zheng, Shili,et al. Mullite-based ceramic tiles produced solely from high-alumina fly ash: Preparation and sintering mechanism[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,732:828-837. |
| APA | Luo, Yang,Ma, Shuhua,Zheng, Shili,Liu, Chunli,Han, Dajie,&Wang, Xiaohui.(2018).Mullite-based ceramic tiles produced solely from high-alumina fly ash: Preparation and sintering mechanism.JOURNAL OF ALLOYS AND COMPOUNDS,732,828-837. |
| MLA | Luo, Yang,et al."Mullite-based ceramic tiles produced solely from high-alumina fly ash: Preparation and sintering mechanism".JOURNAL OF ALLOYS AND COMPOUNDS 732(2018):828-837. |
入库方式： OAI收割
来源：过程工程研究所
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