Process for manufacturing a part made of a ceramic matrix composite containing matrix phases for healing and deflecting cracks
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United States of America Patent
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Mar 17, 2015
Grant Date -
Jan 14, 2010
app pub date -
Oct 16, 2007
filing date -
Oct 17, 2006
priority date (Note) -
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Abstract
The method comprises the steps of: forming a porous fiber-reinforcing structure; introducing into the pores of the fiber structure powders containing elements for constituting the composite material matrix; and forming at least a main fraction of the matrix from said powders by causing a reaction to take place between said powders or between at least a portion of said powders and at least one delivered additional element; the powders introduced into the fiber structure and the delivered additional element(s) comprising elements that form at least one healing discontinuous matrix phase including a boron compound and at least one discontinuous matrix phase including a crack-deflecting compound of lamellar structure. At least a main fraction of the matrix is formed by chemical reaction between the powders introduced into the fiber structure and at least one delivered additional element, or by sintering the powders.
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