| A strategy to obtain a high-density and high-strength zirconia ceramic via ceramic injection molding by the modification of oleic acid |
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| 作者姓名： | Jia-xin Wen Tian-bin Zhu Zhi-peng Xie Wen-bin Cao Wei Liu |
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| 作者单位： | School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| 基金项目： | This work wasfinancially supported by the National Natural Science Foundation of China |
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| 摘 要： | Despite its unique high efficiency and good environmental compatibility, the water-soluble binder system still encounters problems achieving a desired sintered part via ceramic injection molding because of the poor compatibility and the powder-binder segregation between ceramic powders and binders. The objective of this study was to obtain a sintered part with excellent properties by introducing a small quantity of oleic acid to the surface of zirconia powders before the mixing process. As opposed to many previous investigations that focused only on the rheological behavior and modification mechanism, the sintering behavior and densification process were systematically investigated in this study. With the modified powders, debound parts with a more homogeneous and smaller pore size distribution were fabricated. Also, a higher density and greater flexural strength were achieved in the sintered parts fabricated using the modified powders.
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| 关 键 词： | ceramic materials zirconia injection molding oleic acid sintering |
A strategy to obtain a high-density and high-strength zirconia ceramic via ceramic injection molding by the modification of oleic acid |
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| Jia-xin Wen,Tian-bin Zhu,Zhi-peng Xie,Wen-bin Cao,Wei Liu.A strategy to obtain a high-density and high-strength zirconia ceramic via ceramic injection molding by the modification of oleic acid[J].International Journal of Minerals,Metallurgy and Materials,2017,24(6):718-725. |
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| Authors: | Jia-xin Wen Tian-bin Zhu Zhi-peng Xie Wen-bin Cao Wei Liu |
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| Institution: | 1. School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;2. Sate Key Laboratory of New Ceramics and Fine Processing,Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;3. School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China |
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| Abstract: | Despite its unique high efficiency and good environmental compatibility, the water-soluble binder system still encounters prob-lems achieving a desired sintered part via ceramic injection molding because of the poor compatibility and the powder-binder segregation between ceramic powders and binders. The objective of this study was to obtain a sintered part with excellent properties by introducing a small quantity of oleic acid to the surface of zirconia powders before the mixing process. As opposed to many previous investigations that focused only on the rheological behavior and modification mechanism, the sintering behavior and densification process were systematically investigated in this study. With the modified powders, debound parts with a more homogeneous and smaller pore size distribution were fa-bricated. Also, a higher density and greater flexural strength were achieved in the sintered parts fabricated using the modified powders. |
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| Keywords: | ceramic materials zirconia injection molding oleic acid sintering |
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