Skip to main content Accessibility help
×
Home

Two-dimensional simulation of mass transport in polymer removal from a powder injection molding compact by thermal debinding

  • Ying Shengjie (a1), Y. C. Lam (a1), S. C. M. Yu (a1) and K. C. Tam (a1)

Abstract

Two-dimensional simulation of thermal debinding in powder injection molding based on mass and heat transfer in deformable porous media is proposed. The primary mechanisms of mass transport, i.e., liquid flow, gas flow, vapor diffusion, and convection, as well as the pyrolysis of polymers, and their interactions, are included in the model. The simulated results revealed that polymer removal process is primarily affected by liquid flow, which is mainly dominated by pressure-forced flow rather than capillary-driven flow. A significant phenomenon, enrichment with liquid polymer in the outer surface regions of the compact, is explained.

Copyright

References

Hide All
1German, R.M., Int. J. Powder Metall. 23, 237 (1987).
2Calvert, P. and Cima, M., J. Am. Ceram. Soc. 73, 575 (1990).
3Barone, M.R. and Ulicny, J.C., J. Am. Ceram. Soc. 73, 3323 (1990).
4Stangle, G.C. and Aksay, I.A., Chem. Eng. Sci. 45, 1719 (1990).
5Tsai, D-S., AIChE J. 37, 547 (1991).
6Evans, J.R.G., Edirisinghe, M.J., Wright, J.K., and Crank, J., Proc. R. Soc. London A 432, 321 (1991).
7Matar, S.A., Edirisinghe, M.J., Evans, J.R.G., and Twizell, E.H., J. Mater. Res. 8, 617 (1993).
8Matar, S.A., Edirisinghe, M.J., Evans, J.R.G., Twizell, E.H., and Song, J.H., J. Mater. Sci. 30, 3805 (1995).
9Shaw, H.M. and Edirisinghe, M.J., Philos. Mag. A 72, 267 (1995).
10Song, J.H., Edirisinghe, M.J., Evans, J.R.G., and Twizell, E.H., J. Mater. Res. 11, 830 (1996).
11Lewis, J.A., Galler, M.A., and Bentz, D.P., J. Am. Ceram. Soc. 79, 1377 (1996).
12Maximenko, A. and Van Der Biest, O., J. Eur. Ceram. Soc. 18, 1001 (1998).
13Song, J.H., Evans, J.R.G., and Edirisinghe, M.J., J. Mater. Res. 15, 449 (2000).
14Lam, Y.C., Shengjie, Ying, Yu, S.C.M., and Tam, K.C., Metall. Mater. Trans A 31A, 2597 (2000).
15Cima, M.J., Lewis, J.A., and Devoe, A., J. Am. Ceram. Soc. 72, 1192 (1989).
16Lewis, J.A. and Cima, M.J., in Ceramic Transactions, edited by Messing, G.L., Hirano, S., and Hausner, H. (Ceramic Powder Science II. 12, American Ceramic Society, Westerville, Ohio, 1990), p. 583.
17Shaw, H.M., Huttonand, T.J., and Edirisinghe, M.J., J. Mater. Sci. Lett. 11, 1075 (1992).
18Hwang, K.S. and Tsou, T.H., Metall. Trans. A 23A, 2775 (1992).
19Hwang, K.S. and Tsou, T.H., Scr. Metall. Mater. 26, 655 (1992).
20Liu, D.M. and Tseng, W.J., J. Mater. Sci. Lett. 16, 482 (1997).
21Shengjie, Ying, Lam, Y.C., Yu, S.C.M., and Tam, K.C., Acta Mater. (2001, submitted).
22Himmelblau, D.M., Basic Principles and Calculations in Chemical Engineering, 6th ed. (Prentice Hall PTR, Upper Saddle River, New Jersey, 1996).
23Whitaker, S., in Advances in Heat Transfer (Academic Press, New York, 1977), Vol. 13, p. 119.
24Ried, R.C., Prausintz, J.M., and Poling, B.E., The Properties of Gases & Liquids, 4th ed. (McGraw-Hill, New York, 1987).
25Vogel, H., Physik Z. 22, 645 (1921).
26Neufeld, P.D., Janzen, A.R., and Aziz, R.A., J. Chem. Phys. 57, 1100 (1972).
27Wilke, C.R.J., Chem. Phys. 18, 517 (1950).
28German, R.M., Powder Technol. 30, 81 (1981).
29Scheidegger, A.E., The Physics of Flow Through Porous Media, 3rd ed. (University of Toronto Press, Toronto, Canada, 1974).
30Baver, L.D. and Gardner, W.H., Soil Physics, 4th ed. (Wiley, New York, 1972).
31Lewis, J.A., Annu. Rev. Mater. Sci. 27, 147 (1997).
32Langer, I. and Lehnert, W., in Powder Injection Moulding, (1998 PM Word Congress Proceeding. 3, EPMA, 1998), p. 75.
33Sproson, D.W. and Messing, G.L., in Ceramic Transactions, edited by Messing, C.L., Fuller, E.R., and Hausner, H., Jr. (Ceramic Powder Science II, A1, American Ceramic Society, Inc., Wester-ville, Ohio, 1988), p. 528.
34Zhang, T., Chen, Z.G., Jiang, Z.Z., and Wu, J.G., in Ceramic Mate-rials and Components for Engines, edited by Tennery, V.J. (Proc. of 3rd Int. Symp., American Ceramic Society, Inc., Westerville, Ohio, 1989), p. 219.
35Su, S.R., in Synthesis and Processing of Ceramics: Scientific Issues, edited by Rhine, W.E., Shaw, T.M., Cottschall, R.J. and Chen, Y. (Mat. Res. Soc. Symp. Proc. 249, Pittsburgh, PA, 1992), p. 345.
36Zhang, Y., Uchida, N., and Uematsu, K., J. Mater. Sci. 30, 1357 (1995).
37Bandyopadhyay, A., Danforth, S.C., and Safari, A., J. Mater. Sci. 35, 3983 (2000).
38Edirisinghe, M.J., Mater. Manuf. Processes 12, 609 (1997).
39Klosterman, D.A., Chartoff, R.P., Osborne, N.R., Graves, G.A., Lightman, A., Han, G.W., Bezeredi, A., Rodrigues, S., Park, S., Kalmanovich, G., Dodin, L., and Tu, S., Am. Ceram. Soc. Bull. 77, Oct., 69 (1998).
40Greul, M. and Lenk, R., Ind. Ceram. 20, 115 (2000).
41Song, J.H., Edirisinghe, M.J., and Evans, J.R.G., J. Am. Ceram. Soc. 82, 3374 (1999).
42Shi, Z., Guo, Z.X., and Song, J.H., Mater. Sci. Technol. 16, 843 (2000).
43Salam, L.A., Matthews, R.D., and Robertson, H., J. Eur. Ceram. Soc. 20, 335 (2000).
44Liau, L.C-K., Peters, B., Krueger, D.S., Gordon, A., Viswanath, D.S., and Lombardo, S.J., J. Am. Ceram. Soc. 83, 2645 (2000).

Two-dimensional simulation of mass transport in polymer removal from a powder injection molding compact by thermal debinding

  • Ying Shengjie (a1), Y. C. Lam (a1), S. C. M. Yu (a1) and K. C. Tam (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed