Abstract
Monte Carlo simulation method of microstructure evolution in nanocomposite ceramic tool materials is set up. Two-phased material systems with the same area fractions but various sizes of nanoparticles are designed, and the processes of microstructure evolution are simulated. The influences of nanoparticle size on microstructure and grain growth are observed and discussed quantitatively. It is found that the mean size of matrix grains increases with the increase of nanophase size during simulation, and intragranular-type microstructure is more difficult to form. The material Al2O3/nanoSiC is developed and the simulated results are verified.
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