Carbide composite material and production method and product thereof

Abstract

The invention discloses a carbide composite material and a production method and a product thereof, and the production method comprises the following steps: mixing carbon-containing particles and first fibers according to a preset proportion, and dispersing the first fibers in the carbon-containing particles to form mixed powder; the mixed powder is pressed into a preset shape, a prefabricated body is formed, and the volume content of the first fibers in the prefabricated body is larger than 10%; performing pyrolysis treatment on the preform, carbonizing the carbon-containing particles in the preform to form a carbon skeleton with a porous structure, and dispersing the first fibers in the carbon skeleton with the porous structure; the carbon skeleton of the porous structure is filled with an infiltration material, the carbon skeleton of the porous structure is heated, the infiltration material and carbon in the carbon skeleton of the porous structure are subjected to an infiltration reaction to form a carbide composite material, and the first fibers are dispersed in the carbide composite material to toughen the carbide composite material. The carbide composite material prepared by the production method provided by the invention has good high-temperature oxidation resistance and wear resistance, and has bending strength of 140 MPa or above.

Description

technical field [0001] The invention relates to the technical field of ceramic matrix composite material preparation, in particular to a carbide composite material and a production method and products thereof. Background technique [0002] Ceramic matrix composite materials have various excellent properties of advanced ceramic materials, such as high temperature resistance, corrosion resistance, high strength, high stiffness and relative specific gravity. At the same time, through the introduction of high-efficiency toughening phase fibers, the inherent brittleness of ceramic materials is overcome, and its damage tolerance and reliability are effectively improved. [0003] At present, the methods for producing fiber-toughened ceramic matrix composites and ceramic matrix composite structural parts mainly include chemical vapor infiltration (Chemical Vapor Infiltration-CVI), precursor conversion (PrecursorInfiltration Pyrolysis-PIP), metal infiltration (Metal Reaction Infiltr...

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Problems solved by technology

[0004] However, the methods for producing fiber-reinforced ceramic matrix composites in the prior art still have problems such as high cost, long time consumption, small output and low yield.

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