Sintering stability of biporous materials under kinematic constraints
- 61 Downloads
The behavior of porous materials with bimodal pore distribution under external loads and kinematic constraints is considered. Numerical methods of continuum mechanics of sintering are used. The effect of partial and complete constraining of the surface bounding the billets in sintering is studied. Corresponding distributions of small and large pores are determined. The sensitivity of the distributions to constraining/loading paths is established.
Keywordsconstrained sintering bimodal pore size distribution rheological constitutive equations
Unable to display preview. Download preview PDF.
- 2.E. A. Olevsky, “Theory of sintering: From discrete to continuum,” Mat. Sci. Eng., R23, 41–100 (1998).Google Scholar
- 5.R. M. German and M. Bulger, “A model for densification by sintering of bimodal particle size distribution,” Int. J. Powder Met., 28, No. 3, 301–311 (1992).Google Scholar
- 6.Ya. E. Geguzin, Physics of Sintering [in Russian], 2nd Edition, Nauka, Moscow (1984).Google Scholar
- 7.G. W. Scherer, “Coarsening in viscous matrix,” J. Am. Ceram. Soc., 81, No 1, 49–54 (1998).Google Scholar
- 8.V. V. Skorokhod, Rheology Basis of Sintering Theory [in Russian], Naukova Dumka, Kiev (1972), p. 151.Google Scholar
- 15.V. V. Skorokhod and M. B. Shtern, “Mechanics of sintering materials with bimodal pore distribution. II. Mean-square strain rate for the solid phase of a biporous body and instability of the monomodal pore structure during constrained sintering,” Powder Metall. Met. Ceram., 45, No. 1–2, 28–34 (2006).CrossRefGoogle Scholar