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Research Article | Open Access

Effects of different backbone binders on the characteristics of zirconia parts using wax-based binder system via ceramic injection molding

Jiaxin WENaZhipeng XIEb( )Wenbin CAOaXianfeng YANGc
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100084, China
State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
College of Physics and Electronics Science, Changsha University of Science & Technology, Changsha 410014, China
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Abstract

In this work, various backbone binders were used in wax-based binder system to formulate zirconia parts by ceramic injection molding (CIM). The effect of different backbone binders on the molding, debinding, and sintering behaviors was investigated. After blending process, the feedstock using multi-polymer components exhibited more homogeneous structure compared with that using the mono-polymer ones due to the synergistic effect of multi-polymers. During solvent debinding, some defects such as “slumping” and “peeling” appeared in the parts containing ethylene-vinyl acetate copolymer (EVA), but they were not found in the parts with other thermal polymers. Also, as for the parts after sintering, the one using low density polyethylene (LDPE) and high density polyethylene (HDPE) as backbone binders presented a more uniform microstructure with finer zirconia grains among all the investigated compositions, and thus obtained the highest flexural strength (~949 MPa) and relative density (~98.9%).

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Journal of Advanced Ceramics
Pages 321-328
Cite this article:
WEN J, XIE Z, CAO W, et al. Effects of different backbone binders on the characteristics of zirconia parts using wax-based binder system via ceramic injection molding. Journal of Advanced Ceramics, 2016, 5(4): 321-328. https://doi.org/10.1007/s40145-016-0205-1

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Received: 19 June 2016
Revised: 22 August 2016
Accepted: 25 August 2016
Published: 23 December 2016
© The author(s) 2016

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons. org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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