A model was established to estimate the volume fraction of the reaction products against the change of the initial pore volume fraction of the perform 文中初步建立了一個模型,以預測不同的坯體初始空隙率時材料產(chǎn)物中各相的含量。
It shows there was a critical volume fraction . only when the initial pore volume fraction of the perform equal to the critical volume fraction , the free si was fully replaced with the mosi2 particles . otherwise . there would be free c and free si in the infiltrated materials 結(jié)果表明,坯體的初始空隙率存有一個臨界值。只有當坯體的初始空隙率等于此值時,材料中的游離硅才可能被mosi _ 2完全取代。