Bjørk, Rasmus

Frandsen, Henrik Lund

Pryds, Nini

Tikare, V.

A numerical model able to simulate solid state constrained sintering of a powder compact is presented. The model couples an existing kinetic Monte Carlo (kMC) model for free sintering with a finite element (FE) method for calculating stresses on a microstructural level. The microstructural response to the stress field as well as the FE calculation of the stress field from the microstructural evolution is discussed. The sintering behavior of two powder compacts constrained by a rigid substrate is simulated and compared to free sintering of the same samples. Constrained sintering result in a larger number of pores near the substrate as well as a reorientation of the pores along the direction normal to the substrate. These features are also observed experimentally

Online Research Database In Technology

Modeling the microstructural evolution during constrained sintering

http://orbit.dtu.dk/ws/files/51480528/Modeling_the_microstructural_evolution.pdf

Modeling the microstructural evolution during constrained sintering

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Online Research Database In Technology