Pressureless Sintering of a Ceramic Matrix with Multiple Rigid Inclusions: Finite Element Model
Interaction among the dispersed second phase of rigid inclusions in a ceramic matrix undergoing densification is investigated by a viscoelastic finite element method with a two-dimensional multiple-inclusion model. the interaction is negligible when the volume fraction of inclusions is low (<20%) and/or when the inclusions are uniformly distributed. the interaction becomes significant when the volume fraction of inclusions is high or the inclusions are agglomerated. the densification rates in the region between the inclusions are enhanced to some degree when the inclusions are closely packed. This enhancement will, however, cease when the inclusions get much closer, eventually coming in contact with each other. in general, the agglomeration or close packing of inclusions results in retardation in the overall densification of the sintering matrix.
W. Hong and L. R. Dharani, "Pressureless Sintering of a Ceramic Matrix with Multiple Rigid Inclusions: Finite Element Model," Journal of the American Ceramic Society, Wiley-Blackwell, Jan 1995.
The definitive version is available at http://dx.doi.org/10.1111/j.1151-2916.1995.tb08856.x
Mechanical and Aerospace Engineering
Article - Journal
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