Abstract: The subject invention relates to a coated reinforcement material comprising a Si-containing reinforcement having a coating of the general formula:Al.sub.x O.sub.y N.sub.zwhereinx is up to about 60 atomic % of the coating;y is from about 20 atomic % to about 55 atomic % of the coating; andz is from about 5 atomic % to about 45 atomic % of the coating, with the proviso that x+y+z=100.The invention further relates to a high strength, high temperature performance composite comprising a Si-containing reinforcement material having a coating comprising aluminum, oxygen and nitrogen, said coated reinforcement material in combination with a matrix material.

Abstract: The subject invention relates to a hybrid reinforcement material comprising a refractory metal core having a first coating comprising aluminum, oxygen and nitrogen, this coating of the general formula:Al.sub.x O.sub.y N.sub.zwhereinx is up to about 670 atomic % of the coatingy is from about 20 atomic % to about 55 atomic % ofthe coating; andz is from about 5 atomic % to about 45 atomic % of the coating, with the proviso that x+y+z=100, and having a second SiC coating.The subject invention further relates to a high strength, high temperature performance composite containing the hybrid reinforcement specified above.

Abstract: The subject invention relates to a coated reinforcement material comprising a SiC reinforcement having an outer core coating of the general formula:Ti.sub.x M.sub.y B.sub.zwherein M is at least one of V, Nb, Ta, Cr, Mo, W, Zr, and Hf; x is between about 30 and 60 atomic percent; y is between about 5 and 30 atomic percent; z is between about 35 and 60 atomic percent; and x+y+z=100. The invention further relates to a high strength, high temperature performance composite comprising a ternary boride coated SiC reinforcement material and titanium alloy matrix material.

Abstract: The subject invention relates to a coated reinforcement material comprising a SiC reinforcement having a coating of at least three layers, wherein the layers are alternately A-material layers of the general formula:Al.sub.x O.sub.y N.sub.zwherein x is up to about 60 atomic % of the coating;y is from about 20 atomic % to about 55 atomic % of the coating; andz is from about 5 atomic % to about 45 atomic % of the coating, with the proviso that x+y+z=100, and B-material layers comprising a metal alloy, such that the first and last layers of the coating are A-material layers. The invention further relates to a high strength, high temperature performance composite containing the above-specified coated reinforcement.

Abstract: The subject invention relates to a coated reinforcement material comprising a reinforcement having a coating or the general formula:A.sub.x Si.sub.100-xwherein A is selected from the group consisting of Au, Pt, Ru, Rh,Ni, Pd, Ir and combinations thereof; andx is within the range of greater than zero to about 40.The invention further relates to a high strength, high temperature performance composite comprising a matrix material and a reinforcement material having a coating comprising silicon in combination with at least one of gold, platinum, ruthenium, rhodium, nickel, iridium and palladium.