Impregnation molding of particle-filled preceramic polymers: Process modeling

Date

1999-08-01

Author

Erdal Erdoğmuş, Merve
Danforth, SC

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A process model is presented for the analysis and simulation of impregnation molding of particle-filled, continuous-fiber ceramic composites. A multidimensional, transient particle filtration formulation is coupled with isothermal, anisotropic Darcy flow to predict filler-concentration profiles during molding. The particle filtration is insensitive to the injection flow rate; however, in irregularly shaped molds, the geometry of the mold greatly influences the local velocities, which results in local variations in the rate of filtration. Although the preform volume fraction and inlet particle concentration influence the particle accumulation quantitatively, the filtration coefficient and the permeability have a dominant role in setting the filtration trend.

Subject Keywords

Porous-media, Filtration, Suspensions, Flow

URI

https://hdl.handle.net/11511/54513

Journal

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

Collections

Department of Mechanical Engineering, Article

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Citation Formats

M. Erdal Erdoğmuş and S. Danforth, “Impregnation molding of particle-filled preceramic polymers: Process modeling,” JOURNAL OF THE AMERICAN CERAMIC SOCIETY, pp. 2017–2028, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54513.