The composite material has a matrix of aluminosilicate, in particular as barium aluminosilicate 'low' strengthened by reinforcements made of metal oxide, and its method of preparation.

摘要

Composite material constituted by a matrix of at least one aluminosilicate chosen from among the barium aluminosilicate, the aluminosilicate barium and strontium bsas, the aluminosilicate of strontium, and their mixtures, reinforced by reinforcements of at least one oxide of metal or metalloid, the coefficient of expansion is close to that of at least one aluminosilicate. Method of preparation of said composite material. Composite material according to the invention being applied notably in the field of aeronautics and aerospace, for example for the manufacture of radomes.