A strategy to obtain a high-density and high-strength zirconia ceramic via ceramic injection molding by the modification of oleic acid

Jia-xin Wen; Tian-bin Zhu; Zhi-peng Xie; Wen-bin Cao; Wei Liu

doi:10.1007/s12613-017-1455-9

Volume 24 Issue 6

Jun. 2017

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(6): 718-725

Jia-xin Wen, Tian-bin Zhu, Zhi-peng Xie, Wen-bin Cao, and Wei Liu, A strategy to obtain a high-density and high-strength zirconia ceramic via ceramic injection molding by the modification of oleic acid, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 718-725. https://doi.org/10.1007/s12613-017-1455-9

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Jia-xin Wen, Tian-bin Zhu, Zhi-peng Xie, Wen-bin Cao, and Wei Liu, A strategy to obtain a high-density and high-strength zirconia ceramic via ceramic injection molding by the modification of oleic acid, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 718-725. https://doi.org/10.1007/s12613-017-1455-9

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Research Article

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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Corresponding author:
Zhi-peng Xie E-mail: xzp@mail.tsinghua.edu.cn
Received: 27 October 2016; Revised: 26 December 2016; Accepted: 29 December 2016

Abstract

Abstract

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.
- ceramic materials;
- zirconia;
- injection molding;
- oleic acid;
- sintering

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References

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