Study on Elimination of Surface-exfoliation and Crack of ZrO_2 Green Body of Gelcasting with water-solubility macromolecule

机译：水溶性大分子消除凝胶铸造的ZrO_2生坯表面剥落和裂纹的研究

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Ceramic gelcasting has to be performed in nitrogen to avoid surface-exfoliation and crack of the green body. The rapid drying of gelled bodies can cause nonuniform shrinkage. Non-uniform drying in various regions due to the solvent gradient, induces structural and residual stresses which cause defects, such as cracking, warpage and the other malformations. These malformations can be minimized or eliminated via adding a proper amount of water-soluble polymer polyethylene glycol(PEG).This study concentrates attention on dispersion, rheological property and gelation behavior in the new system, The flexural strength and microstructure of ZiO_2 green bodies were measured and observed.

机译：陶瓷凝胶浇铸必须在氮气中进行，以避免表面剥落和生坯破裂。凝胶体的快速干燥会导致不均匀的收缩。由于溶剂梯度，在各个区域内干燥不均匀，会引起结构应力和残余应力，这些应力会导致缺陷，例如破裂，翘曲和其他变形。通过添加适量的水溶性高分子聚乙二醇（PEG）可以最小化或消除这些畸变。本研究着重研究了新体系中的分散性，流变性质和胶凝行为，Zio_2生坯的弯曲强度和微观结构为测量和观察。

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来源
《Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.2; 20041102-05; Beijing(CN)》|2004年|P.1317-1320|共4页
会议地点 Beijing(CN)
作者
Zhongzhou Yi; Shi-en Wang; Yong Huang;
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作者单位

Department of Chemistry, Honghe University, Mengzi 661100, P.R. China;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
zirconia; gelcasting; surface-exfoliation; polyethylene glycol;

机译：氧化锆;凝胶铸造;表面剥离;聚乙二醇;

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1. The contributing factor and elimination of macropores in Si3N4 green bodies formed by water-based gelcasting [J] . J. Dai, Z. Xie Journal of Materials Science Letters . 1999,第21期

机译：水基凝胶浇铸形成的Si3N4生坯中大孔的成因及消除
2. Effect of plasticizer on the cracking of ceramic green bodies in gelcasting [J] . L. G. MA, Y. HUANG, J. L. YANG, Journal of Materials Science . 2005,第18期

机译：增塑剂对凝胶浇铸中陶瓷生坯开裂的影响
3. DAEM kinetics analysis and finite element simulation of thermal debinding process for a gelcast SiAlON green body [J] . Li Jing, Zhang Chuanfu, Yin Ruiming, CERAMICS INTERNATIONAL . 2019,第7aPta1期

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4. Study on Elimination of Surface-Exfoliation and Crack of ZrO_2 Green Body of Gelcasting with Water-Solubility Macromolecule [C] . Z. Yi, S.E. Wang, Y. Huang Pacific Rim International Conference on Advanced Materials and Processing . 2005

机译：水溶性大分子消除γ2凝胶凝胶凝胶表面剥离和裂纹的研究
5. Green's function and Dyson orbital studies of the electronic structure of cage compounds and flexible molecules: A confrontation of many -body quantum mechanics with electron momentum, photo-electron and penning ionization electron spectroscopies [D] . Knippenberg, Stefan 2007

机译：笼子化合物和柔性分子的电子结构的格林函数和戴森轨道研究：多体量子力学与电子动量，光电子和潘宁电离电子光谱学的对立
6. STUDIES ON THE LOCALIZATION OF CIRCULATING ANTIGEN-ANTIBODY COMPLEXES AND OTHER MACROMOLECULES IN VESSELS [O] . Charles G. Cochrane 1963

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7. Effect of mixing condition of additives on the solidification of green body by gelcasting method [O] . Kato, Tomoaki, Shirai, Takashi, Watanabe, Hideo, 2009

机译：添加剂混合条件对凝胶浇铸法生坯凝固的影响
8. Tensile strength of dried gelcast green bodies [R] . Nunn, S D, Omatete, O O, Walls, CA, 1994

机译：干凝胶铸造生坯的拉伸强度

Study on Elimination of Surface-exfoliation and Crack of ZrO_2 Green Body of Gelcasting with water-solubility macromolecule

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