B_4C对碳结合刚玉—莫来石材料相组成和力学性能的影响

Effect of B_4C Additive on Phase Composition and Mechanical Propecrties of Carbon-bonded Corundum-Mullite Materials

本文研究了B_4C在碳结合刚玉—莫来石材料中的高温相转化及其对力学性能的影响,认为B_4C转化生成的9Al_2O_3·2B_2O_3及其与莫来石形成的固溶体对材料结构可起增强作用,使材料强度提高.

The phase transformation at high temperature of B_4C additive in carbon-bonded corundum-muilite material fired at 1400℃ and its effect on mechanical properties have been studied. It is shown that 9Al_2O_3·2B_2O_3 and its solid solution with mullite are formed during heat treatment. As a result, the structure of the material is reinforced, which would lead to an increase in strength properties.