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Preparation and Rheological Properties of HfO2Aqueous Slurry
Cao, Yanpeng1,2,3; Ni, Dewei2,3; Zhou, Haijun2,3; Kan, Yanmei2,3; Dong, Shaoming2,3
2017
发表期刊Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
ISSN04545648
卷号45期号:7页码:935-940
摘要The effects of pH value and the dispersant polyethyleneimine (PEI) content on the stability and rheological properties of HfO2aqueous slurry were investigated. The results indicate that, as a cationic dispersant, PEI can combine with H+to form some charged [-CH2-CH2-NH2+-] groups, which adsorb on the surface of HfO2particles and make it positively charged. As a result, the pH value at isoelectric point of the slurry increases from 6.2 to 11.2. As PEI added, the viscosity of HfO2aqueous slurry decreases initially and then increases when the mass fraction of PEI exceeds over 0.1%. Besides, the viscosity of slurry increases with the increase of solid loading, especially when the volume fraction of solid loading is greater than 30%. The HfO2aqueous slurry with a low viscosity and a highly stability is obtained at pH value of 3, mass fraction of PEI of 0.1%, and solid loading of 30%. A composite with HfO2volume fraction of 15% is obtained by impregnating the preform using the optimized HfO2aqueous slurry. © 2017, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
DOI10.14062/j.issn.0454-5648.2017.07.07
EI入藏号20174104244072
EI主题词Hafnium oxides
EI分类号641.1 Thermodynamics - 801.1 Chemistry, General - 804 Chemical Products Generally - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25613
专题中国科学院上海硅酸盐研究所
作者单位1.School of Materials Science and Engineering, Shanghai University, Shanghai; 200444, China;
2.Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China;
3.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai; 200050, China
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GB/T 7714
Cao, Yanpeng,Ni, Dewei,Zhou, Haijun,et al. Preparation and Rheological Properties of HfO2Aqueous Slurry[J]. Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society,2017,45(7):935-940.
APA Cao, Yanpeng,Ni, Dewei,Zhou, Haijun,Kan, Yanmei,&Dong, Shaoming.(2017).Preparation and Rheological Properties of HfO2Aqueous Slurry.Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society,45(7),935-940.
MLA Cao, Yanpeng,et al."Preparation and Rheological Properties of HfO2Aqueous Slurry".Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society 45.7(2017):935-940.
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