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Journal of Advanced Ceramics 2016, 5(4): 321-328 https://doi.org/10.1007/s40145-016-0205-1
Research Article | Open Access | Issue | Published: 23 December 2016

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

Show Author's Information Jiaxin WENa,  Zhipeng XIEb( ),  Wenbin CAOa,  Xianfeng 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
Keywords:
sintering, ZrO2, ceramic injection molding (CIM), backbone binders, solvent debinding
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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Abstract Full text About this article

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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About this article

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

Show Author's information Jiaxin WENa, Zhipeng XIEb( ), Wenbin CAOa, Xianfeng 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

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%).

Keywords: sintering, ZrO2, ceramic injection molding (CIM), backbone binders, solvent debinding

References(24)

[1]
Mutsuddy BC, Ford RG. Ceramic Injection Molding. London: Chapman & Hall, 1995: 1-22.
[2]
German RM. Powder Metallurgy Science, 2nd edn. Princeton, NJ, USA: MPIF, 1994.
[3]
German RM. Powder Injection Molding. Princeton, NJ, USA: MPIF, 1990.
[4]
Lin ST, German RM. Interaction between binder and powder in injection molding of alumina. J Mater Sci 1994, 29: 5207-5212.
DOI Google Scholar
[5]
Liu D-M, Tseng WJ. Yield behavior of zirconia-wax suspensions. Mat Sci Eng A 1998, 254: 136-146.
DOI Google Scholar
[6]
Trunec M, Cihlar J. Thermal removal of multicomponent binder from ceramic injection moldings. J Eur Ceram Soc 2002, 22: 2231-2241.
DOI Google Scholar
[7]
Zhang T, Evans JRG. Relaxation effects in large injection molded ceramic bodies. J Eur Ceram Soc 1993, 12: 51-59.
DOI Google Scholar
[8]
Yang S, Zhang R, Qu X. X-ray analysis of powder-binder separation during SiC injection process in L-shaped mould. J Eur Ceram Soc 2015, 35: 61-67.
DOI Google Scholar
[9]
Thomas-Vielma P, Cervera A, Levenfeld B, et al. Production of alumina parts by powder injection molding with a binder system based on high density polyethylene. J Eur Ceram Soc 2008, 28: 763-771.
DOI Google Scholar
[10]
Liu ZY, Loh NH, Tor SB, et al. Binder system for micropowder injection molding. Mater Lett 2001, 48: 31-38.
DOI Google Scholar
[11]
Yang W-W, Yang K-Y, Wang M-C, et al. Solvent debinding mechanism for alumina injection molded compacts with water-soluble binders. Ceram Int 2003, 29: 745-756.
DOI Google Scholar
[12]
Liu W, Xie Z, Zhang L, et al. Debinding behaviors and mechanism of injection molded ZrO2 ceramics using kerosene as solvents. Key Eng Mater 2012, 512–515: 431-434.
DOI Google Scholar
[13]
Matula G, Dobrzański LA, Varez A, et al. Development of a feedstock formulation based on PP for MIM of carbides reinforced M2. Journal of Achievements in Materials and Manufacturing Engineering 2008, 27: 195-198.
Google Scholar
[14]
Islam SH, Qu XH, Tufai M. Preparation and characterization of tungsten heavy alloy feedstock for metal injection molding. Adv Mater Res 2007, 26–28: 363-366.
DOI Google Scholar
[15]
Kim SW, Lee H-W, Song H. Effect of minor binder on capillary structure evolution during wicking. Ceram Int 1999, 25: 671-676.
DOI Google Scholar
[16]
Setasuwon P, Bunchavimonchet A, Danchaivijit S. The effects of binder components in wax/oil systems for metal injection molding. J Mater Process Tech 2008, 196: 94-100.
DOI Google Scholar
[17]
Ani SM, Muchtar A, Muhamad N, et al. Binder removal via a two-stage debinding process for ceramic injection molding parts. Ceram Int 2014, 40: 2819-2824.
DOI Google Scholar
[18]
Supati R, Loh NH, Khor KA, et al. Mixing and characterization of feedstock for powder injection molding. Mater Lett 2000, 46: 109-114.
DOI Google Scholar
[19]
González-Gutiérrez J, Stringari G, Emri I. Powder injection molding of metal and ceramic parts. In Some Critical Issues for Injection Molding. Wang J, Ed. InTech, 2012: 65-88.
[20]
Hidalgo J, Abajo C, Jiménez-Morales A, et al. Effect of a binder system on the low-pressure powder injection moulding of water-soluble zircon feedstocks. J Eur Ceram Soc 2013, 33: 3185-3194.
DOI Google Scholar
[21]
Li S, Huang B, Li Y, et al. A new type of binder for metal injection molding. J Mater Process Tech 2003, 127: 70-73.
DOI Google Scholar
[22]
Zaky MT, Soliman FS, Farag AS. Influence of paraffin wax characteristics on the formulation of wax-based binders and their debinding from green molded parts using two comparative techniques. J Mater Process Tech 2009, 209: 5981-5989.
DOI Google Scholar
[23]
Goodship V. Practical Guide to Injection Moulding. Shawbury, UK: Rapra Technology, 2004.
[24]
Lee S-Y. Sintering behavior and mechanical properties of injection-molded zirconia powder. Ceram Int 2004, 30: 579-584.
DOI Google Scholar
Publication history
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Publication history

Received: 19 June 2016
Revised: 22 August 2016
Accepted: 25 August 2016
Published: 23 December 2016
Issue date: December 2016

Copyright

© The author(s) 2016

Acknowledgements

This work was financially supported by National Natural Science Foundation of China (Grant No. 51572035).

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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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