Synthesis and Reinforcement of Heat-Resistant Cordierite-Mullite Ceramic Structure with Introduction of a Fiber Filler

摘要

The effect of a fiber filler on properties and phase composition of a ceramic based on a corundum-mullite matrix is studied. It is established that use of a steel fiber for reinforcement during preparation of cordierite ceramic is impossible. It is shown that with use of a mullite-silica fiber within the mix composition for cordierite ceramic preparation it is possible to achieve an increase in material mechanical strength by a factor of 1.2 - 2.0; ceramic LTEC at 800A degrees C is 4.1 x 10-(6 -) 5.0 x 10(-6) K-1. It is shown that with introduction of mullite-silica fiber into the ceramic composition the relative amounts of cordierite and mullite increase insignificantly.