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It has only been recently that advances in numerical and computational capabilities have allowed for such detailed simulations of these complex materials and properties, and this research has attempted to leverage that. In order to do this we implemented several novel new techniques within the framework of the Direct Simulation Monte Carlo (DSMC) method. The DSMC method allows for much greater amount of physics to be simulated than had been done in previous work. For example, it can simulate the convection of gas through the microstructure, as well as chemical reactions in the flow. Furthermore, it allows for more physics based implementations of gas-surface interaction models critical to the simulation of thermochemical ablation. 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