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[1]周爱军,卢琪,万香港,等.溶胶\|凝胶过程影响堇青石结晶行为的因素[J].武汉工程大学学报,2012,(06):13-17.[doi:103969/jissn16742869201206004]
　ZHOU Ai\|jun,LU Qi,WAN Xiang\|gang,et al.Factors affecting crystallization behavior of cordierite by Sol\|gel[J].Journal of Wuhan Institute of Technology,2012,(06):13-17.[doi:103969/jissn16742869201206004]
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溶胶\|凝胶过程影响堇青石结晶行为的因素(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年06期
页码:
13-17
栏目:
资源与土木工程
出版日期:
2012-06-30

文章信息/Info

Title:
Factors affecting crystallization behavior of cordierite by Sol\|gel
文章编号:
16742869(2012)06001305
作者:
周爱军; 卢琪; 万香港; 付艳梅
武汉工程大学材料科学与工程学院，湖北 武汉 430074
Author(s):
ZHOU Ai\|jun; LU Qi; WAN Xiang\|gang;  FU Yan\|mei
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074,China
关键词:
堇青石; 溶胶-凝胶法; 结晶行为
Keywords:
cordierite;  sol-gel method;  crystallization behavior
分类号:
TQ17
DOI:
103969/jissn16742869201206004
文献标志码:
A
摘要:
为了研究影响堇青石结晶行为的因素，以Mg(NO3)2·6H2O、Al(NO3)3·9H2O、正硅酸乙酯为原料，根据堇青石的化学式2MgO·Al2O3·5SiO2,按照配比制成溶胶,利用溶胶-凝胶法制备堇青石粉末,并利用X射线衍射、差示扫描热量法等测试手段对堇青石粉末进行表征.测试结果表明,煅烧温度和凝胶预处理温度对堇青石的结晶行为有直接的影响,当干凝胶的预处理为500 ℃,煅烧温度为1 200 ℃时,出现明显的α-堇青石晶相.
Abstract:
Cordierite is widely used with its low thermal expansion coefficient, dielectric constant and high thermal shock resistance. In order to study the factors affecting the cordierite crystallization behavior, cordierite crystalline powder was prepared according to the cordierite chemical formula (2MgO·2Al2O3·5SiO2), and Mg(NO3)2·6H2O, Al(NO3)3·9H2O, tetraethyl orthosilicate (TEOS) were used as the raw materials to get the sol-gel, then the gel was calcined at different temperature to obtain the cordierite powder. The structure and the composition of the cordierite power were characterized with the X-ray diffraction (XRD) and differential scanning calorimetry (DSC) techniques. The results show that the pretreatment and calcination temperature has a direct influence on the cordierite crystallization behavior. When the pretreatment temperature is 500 ℃ and the calcination temperature is 1 200 ℃, alpha-cordierite phase is obtained.

参考文献/References:

［1］Haase W, Sedda L. New ideas and proven solutions for kiln furniture made from cordierite and oxide ceramics［J］. Ceramic Forum International, 1999, 76(7): 9-14.
　　［2］Gonzalez-Velasco J R, Gutierrez-Ortiz M A, Ferret R, et al. Synthesis of cordierite monolithic honeycomb by solid state reaction of precursor oxides［J］. Mster Science Citation Index, 1999, 34(9): 1999-2002.
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　　［7］任强, 武秀兰. 合成堇青石陶瓷材料的研究进展［J］. 中国陶瓷, 2004, 40(5): 23-25.
［8］黄世峰, 侯文萍, 王英姿,等. 溶胶-凝胶法制备堇青石纳米晶粉体的研究［J］. 硅酸盐通报, 2003, 1(6): 35-38.
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备注/Memo

备注/Memo:
收稿日期：20120315作者简介：周爱军（1965-），男，湖北武汉人，副教授，硕士研究生导师.研究方向：材料加工.
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