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

Research paper by K. B. Podbolotov, E. M. Dyatlova; A. T. Volochko

Indexed on: 11 Aug '16Published on: 28 Jul '16Published in: Refractories and Industrial Ceramics



Abstract

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 800°C is 4.1 × 10–6 – 5.0 × 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.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 800°C is 4.1 × 10–6 – 5.0 × 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.6 ––6–1