A three-dimensional braided carbon fiber reinforced metal matrix composite material and its preparation method

Abstract

The invention relates to a three-dimensional braided carbon fiber reinforced metal-matrix composite and a preparation method of the three-dimensional braided carbon fiber reinforced metal-matrix composite. The preparation method comprises the following steps that firstly, pre-treatment is conducted on carbon fiber; secondly, carbon fiber bundles and fine metal wires are bound, so that metal wire-carbon fiber composite bodies are obtained, a three-dimensional framework reinforcing body is braided from the metal wire-carbon fiber composite bodies; thirdly, the braided three-dimensional fiber framework reinforcing body are soaked with silicon carbide particle dissolving slurry and potassium fluozirconate water solution; fourthly, the three-dimension fiber framework reinforcing body treated inthe third step is placed in matrix metal liquid and undergoes extrusion forming under ultrasonic vibration, and then the novel metal-matrix composite is obtained. According to the three-dimensional braided carbon fiber reinforced metal-matrix composite and the preparation method of the three-dimensional braided carbon fiber reinforced metal-matrix composite, a three-dimensional fiber framework isbraided from carbon fiber, net-shape manufacturing of the novel metal-matrix composite reinforced by the three-dimensional fiber framework reinforcing body and having excellent performance is achieved, the types and application range of the metal-matrix composite are expanded, and the three-dimensional braided carbon fiber reinforced metal-matrix composite certainly has broad application prospectin the aerospace field, the military project field and the civil field.

Description

technical field [0001] The invention relates to the field of carbon fiber reinforcement, in particular to a three-dimensional braided carbon fiber reinforced metal matrix composite material and a preparation method thereof. Background technique [0002] Fiber-reinforced aluminum matrix composites have excellent mechanical properties and certain physical properties. They have been used as high-strength and high-temperature resistant materials in the fields of aerospace, automobiles, and mechatronics, showing great potential for application. In recent years, composite materials researchers have conducted a lot of research work on how to effectively use high-performance fibers to reinforce aluminum and aluminum alloy substrates with low density, excellent strength, toughness and corrosion resistance to obtain lightweight and high-strength composite materials with excellent performance. . The reinforcing fibers of fiber-reinforced aluminum matrix composites mainly include carbo...

AI Technical Summary

Problems solved by technology

However, the manufacturing cost of one-dimensional long fibers is very high, and the independent fiber filaments are difficult to have a uniform arrangement and distribution, and the preparation process is difficult to control, which limits the application and development of one-dimensional long fiber reinforced metal matrix composites.

Studies so far have shown that no matter whether one-dimensional long fibers or random short fibers are added to the metal matrix, they have not fully exerted their own "reinforcement" advantages, and the high performance of fibers has not been fully transplanted into metal matrix composites.

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