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Interfacial reactions between a SiO2-Al2O3-ZnO-CaO based glass and alpha alumina
X. Wang; M. H. Chen; S. L. Zhu; F. H. Wang
2013
Source PublicationSurface & Coatings Technology
ISSN0257-8972
Volume232Pages:6-12
AbstractA SiO2-Al2O3-ZnO-CaO based glass coating on alumina was prepared at 900-1100 degrees C, and a composite specimen was prepared using a powder mixture of the glass and alumina at 1000 degrees C. The interfacial reactions between the glass and alumina were investigated using X-ray diffraction, scanning electron microscopy, electron probe microanalysis, and transmission electron microscopy. The glass matrix attacked the alumina inclusions in the glass-alumina composite at first, which led to the formation of a great number of nano-sized gahnite crystallites dispersed in the glass. A discontinuous gahnite interlayer in the coated alumina formed firstly, and then became continuous. In addition, some isolated gahnite crystallites formed in the glass adjacent to the interlayer, and then merged into the interlayer. Finally, the interlayer exhibited a special morphology: the interface between the gahnite interlayer and the glass coating was dentritic, while one between the interlayer and the alumina substrate was flattened. (C) 2013 Elsevier B.V. All rights reserved.
description.department[wang, xin ; chen, minghui ; zhu, shenglong ; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; zhu, sl (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; slzhu@imr.ac.cn
KeywordInterfacial Reaction Sio2-al2o3-zno-cao Based Glass Alumina Gahnite Glass-ceramic Composite Hot Corrosion Behaviors Zinc Aluminate Oxidation Behavior Hydrothermal Synthesis Enamel Coatings K38g Superalloy Ti6al4v Alloy Nacl Deposit Composites Spinel
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72380
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
X. Wang,M. H. Chen,S. L. Zhu,et al. Interfacial reactions between a SiO2-Al2O3-ZnO-CaO based glass and alpha alumina[J]. Surface & Coatings Technology,2013,232:6-12.
APA X. Wang,M. H. Chen,S. L. Zhu,&F. H. Wang.(2013).Interfacial reactions between a SiO2-Al2O3-ZnO-CaO based glass and alpha alumina.Surface & Coatings Technology,232,6-12.
MLA X. Wang,et al."Interfacial reactions between a SiO2-Al2O3-ZnO-CaO based glass and alpha alumina".Surface & Coatings Technology 232(2013):6-12.
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