Debinding Behaviors and Mechanism of Injection Molded ZrO2 Ceramics Using Kerosene as Solvents

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Abstract:

In this study, low-cost kerosene with low toxicity was used as organic solvent to research the solvent debinding behavior of ceramic compact produced by injection molding. The Influences of time, temperature and solid loading on the debinding rate were investigated, the mechanism of which was also discussed. The results show that: The debinding rate increased with increasing temperature and decreased with extended time; Diffusion is the controlling factor at the initial stage and temperature was the main factor influencing the reaction rate; Dissolution is the controlling factor and concentration difference was the main factor at the later stage; The higher the solid loading of green body, the slower the debinding rate and the lower the final proportion of binder removal.

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Key Engineering Materials (Volumes 512-515)

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431-434

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June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] W. Liu, Z. P. Xie, G. W. Liu, et al, Novel Preparation of Translucent Alumina Ceramics Induced by Doping Additives via Chemical Precipitation Method, J. Am. Ceram. Soc. 94 (2011) 3211-3215.

DOI: 10.1111/j.1551-2916.2011.04796.x

Google Scholar

[2] W. Liu, Z. P. Xie, X. F. Yang, et al, Surface Modification Mechanism of Stearic Acid to Ceramic W. Powders Induced by Ball Milling for Water-Based Injection Molding, J. Am. Ceram. Soc. 94 (2011) 1327-30.

DOI: 10.1111/j.1551-2916.2011.04475.x

Google Scholar

[3] W. Liu, Z. P. Xie, T. Z. Bo, et al, Injection molding of surface modified powders with high solid loadings: A case for fabrication of translucent alumina ceramics, J. Eur. Ceram. Soc., 31(2011) 1611-17.

DOI: 10.1016/j.jeurceramsoc.2011.03.003

Google Scholar

[4] W. Liu, T. Z. Bo, Z. P. Xie, et al, Fabrication of injection moulded translucent alumina ceramics via pressureless sintering, Adv. Appl. Ceram., 110(2011) 251-54

DOI: 10.1179/1743676111y.0000000005

Google Scholar

[5] W. W. Yang and M. H. Hon, In situ evaluation of dimensional variations during water extraction from alumina injection-moulded parts, J. Eur. Ceram. Soc., 20 (2000) 851-58.

DOI: 10.1016/s0955-2219(99)00221-6

Google Scholar

[6] G. Bandyopadhyay and K. W. French, Injection-molded ceramics: Critical aspects of the binder removal process and component fabrication, J. Eur. Ceram. Soc., 11 (1993) 23-34.

DOI: 10.1016/0955-2219(93)90055-v

Google Scholar

[7] K. S. Hwang and T. H. Tsou, Thermal Debinding of Powder Injection Molded Parts - Observations and Mechanisms, Metall. Trans. A, 23 (1992) 2775-82.

DOI: 10.1007/bf02651756

Google Scholar

[8] J. Woodthorpe, M. J. Edirisinghe, and J. R. G. Evans, Properties of Ceramic Injection-Molding Formulations .3. Polymer Removal, J. Mater. Sci., 24 (1989)1038-48.

DOI: 10.1007/bf01148795

Google Scholar