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【答案】应助回帖
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感谢参与，应助指数 +1
yanglei7890: 金币+10 2017-11-08 21:51:46
心静_依然: LS-EPI+1, 感谢应助 2017-11-09 08:53:24
Dissolution-precipitation mechanism of combustion synthesis of calcium aluminate
作者:Yang, SL (Yang, Shoulei)[ 1,2 ] ; Xiao, GQ (Xiao, Guoqing)[ 1 ] ; Ding, DH (Ding, Donghai)[ 1 ] ; Ren, Y (Ren, Yun)[ 1 ] ; Lv, LH (Lv, Lihua)[ 1 ] ; Yang, P (Yang, Pan)[ 1 ]
CERAMICS INTERNATIONAL
卷: 43
期: 17
页: 15918-15926
DOI: 10.1016/j.ceramint.2017.08.167
出版年: DEC 1 2017
查看期刊影响
摘要
The mechanism of combustion synthesis (CS) for calcium aluminate was analyzed by a combustion front quenching method. The phase compositions of different zones in the quenched sample were examined by X-ray diffraction (XRD). The microstructural evolution during the CS process was explored by field-emission scanning electron microscopy equipped with energy dispersive spectrometer (FESEM-EDS). Moreover, the combustion temperature and wave velocity were measured. The results showed that the combustion reaction started with the decomposition of CaO2 and melting of Al, at the same time, O-2 reacted with Al forming Al2O3, which released a large amount of heat to fuse CaO and Al2O3 forming the liquid. Finally, calcium aluminates with good crystallinity would be gradually precipitated from the CaO-Al2O3 liquid. Furthermore, a model corresponding to the dissolution-precipitation mechanism was proposed.
关键词
作者关键词:Calcium aluminate; Combustion synthesis; Mechanism; Combustion front quenching method
KeyWords Plus:HIGH-TEMPERATURE-SYNTHESIS; METAL-MATRIX COMPOSITES; SHS; POWDERS; CAAL2O4; WHISKERS; SIZE
作者信息
通讯作者地址: Xiao, GQ (通讯作者)
Xian Univ Architecture & Technol, Coll Mat & Mineral Resources, Xian 710055, Shaanxi, Peoples R China.
地址:
[ 1 ] Xian Univ Architecture & Technol, Coll Mat & Mineral Resources, Xian 710055, Shaanxi, Peoples R China
[ 2 ] Henan Univ Econ & Law, Sch Engn Management & Real Estate, Zhengzhou 450046, Henan, Peoples R China
电子邮件地址:xiaoguoqing@xauat.edu.cn
基金资助致谢
基金资助机构
授权号
National Natural Science Foundation of China
51272203
51572212
China Postdoctoral Science Foundation
2016M602940XB
Open Project from State Key Laboratory of Advanced Refractories
201504
查看基金资助信息
出版商
ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
类别 / 分类
研究方向:Materials Science
Web of Science 类别:Materials Science, Ceramics
文献信息
文献类型:Article
语种:English
入藏号: WOS:000413175300185
ISSN: 0272-8842
eISSN: 1873-3956
其他信息
IDS 号: FK0NA
Web of Science 核心合集中的 "引用的参考文献": 42
Web of Science 核心合集中的 "被引频次": 0 |
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