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Carbon carbon composite material will occur oxidation in the circumstance of temperature above 450 C°,the rate of oxidation will increase rapidly with the temperature raising.some researches show that the strength of the carbon carbon composite material will reduce 10% with the oxidation loss 1%.the oxidation can not only cause the material loss,but also have the security risks on the material itself. So it’s important to do some protection of the C/C composite material. The method of antioxidant treatment mainly divided into two categories.one is matrix modification to be antioxidant, and another one is surface coating to be antioxidant.the matrix modification way is to treat the CFC material during the preparation process,by using the CVI, impregnation or chemical reaction synthesis etc…
Graphite color steel from iron ash to ash, black streaks, has significant heterogeneity, optical inhomogeneity, hardness and opaque, with metallic luster, aphanitic qualitative is bleak. 1 ~ 2 hardness, specific gravity 2.09 ~ 2.23, inferior graphite proportion is 1.84 ~ 1.98. (the proportion of change is decided by the amount of bubbles and). Chip can bend, soapy, paper and fingers to pollution. Graphite heat resistant (higher than copper and aluminum), with high electrical conductivity, which can withstand temperatures up to 3000 ℃, melting point 3800 ℃, boiling point 4250 ℃, plastic, chemical stability strong, insoluble in acid and alkali. Use and applications (1) the manufacture electric smelting furnace, electrolytic cell, the arc lamp and arc welding electrodes and generator, motor…
The main use graphite paper 1.Computers, smart phones, high power.The LED,Application of tablets, smart terminal; 2.Graphite paper for large communication equipment and peripheral equipment; 3.Used in power transformation, power supply equipment and peripheral equipment; 4.Graphite paper used for photovoltaic power generation equipment and the surrounding. Graphite paper Features: 1.Graphite paper (graphite foil)light weight, lighter than copper75%,The lighter than aluminum25% 2.Graphite paper surface can be combined with other materials such as metal, plastic, stickers to meet more The design of more functions and needs; 3.Easily cut: graphite heat sink can smooth attached with any platform Surface and curved surface, and can be In accordance with customer demand for any form of cutting; 4.High thermal conductivity graphite paper (350 w/mk - 1500…
