Tests on an intermediate scale showed that corundtun ceramic reinforced with filamentary mullite crystals is a promising material for use under conditions of variable thermal loads. CO NC LU SIONSThe authors have developed a procedure for obtaining compact corundum materials, reinforced with filamentary mullite crystals, with a high heat resistance. They have determined the optimal content of filamentary mullite crystals in the composite.They have established that reinforcement of the ceramic with filamentary mullite crystals increases its strength.They have shown that reinforced corundum is a promising structural material for operation under variable thermal loads.

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