Abstract

To predict the relative density distribution and size evolution of ceramic parts’ near net forming, the whole process of dry pressing and solid state sintering of MgTiO3 ceramic was simulated by finite element modeling method. Strength tests of powder compacts and uniaxial die compaction experiment were carried out to obtain material parameters under different relative densities. The densification process of cylindrical powder compact was simulated to verify the reliability and accuracy of the simulation method. Then, this method was applied to complex structural parts. Besides, the distribution of relative density and stress in ceramic parts were studied. Comparing the simulation results with the experimental results, the relative density errors were within 3.5% and the relative errors of feature sizes were less than 2.3%. This research proved a reliable method for simulating the whole densification process of MgTiO3 ceramic powder, which had a guiding significance for the production process.

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