Russian scientists have perfected the composite materials

A team of the Research Institute of Nuclear Physics. DV Skobel’tsyn of Moscow State University named after MV University together with colleagues of "NIIgrafit"Spent investigating the structure of the surface layer of carbon-carbon composites based on carbon fibers. As a result, found that at elevated temperatures, exposure to high-ions leads not only to loss of anisotropy of the membrane structure polyacrylonitrile fibers, but their corrugated.

Due to the corrugation of the surface structure of carbon fibers can significantly enhance its adhesion to the matrices of carbon and ceramics, which will Operating temperatures increase carbon-ceramic composite material according to at least 2500 degrees Celsius. So far, operation of the operating temperature of carbon-ceramic composite materials is about 1700 degrees.

"It is assumed that the corrugated surface structure of the carbon fibers do not change the mechanical strength of the composite. The final conclusions of the experiment ", — Said a leading researcher at the Institute of Nuclear Physics, Moscow State University Anatoly Borisov.

Currently, carbon-carbon and carbon-ceramic composite materials based on carbon fibers are widely used as energonagruzhennyh and heat-stressed structural elements of nuclear reactors, fusion devices, rocket and space technology.

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