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In the Medium-grain structure graphite is the particle size in 2 a 0.8 mm of special graphite, with high temperature resistance, oxidation resistance, low content of impurities, single large size, low manufacturing cost advantages. It is used for polycrystalline silicon ingot furnace, various graphite components of crystal thermal field. In the early stage, these parts are made of graphite imported from abroad, and even produced in foreign countries. The price is expensive, a small size single crystal furnace thermal field more than 400 thousand yuan. After several years of development, we designed a special medium breaking system, produce their own special vibration equipment, introduced the high pressure impregnation, tunnel type baking furnace and the internal string type graphite furnace is…
All vanadium redox flow battery (VRB battery, VRB) is a new type of green environmental protection battery, has the advantages of high efficiency, long service life, safe and reliable, can be used as a large energy storage device, the wind, hydro, solar and other unstable energy into electrical energy storage to be used as a backup power supply has a wide application prospect. The hydrophilic and electrochemical activity of PAN based (PAN) graphite felt is poor and the graphite felt needs to be modified to be better used in vanadium battery. In order to improve the electrochemical activity of graphite felt, the two cerium oxide was modified on graphite felt by ethanol solution method and sol gel method. Modified graphite…
Carbon / ceramic composites are composed of carbon fiber, ceramic fiber and its fabric as the reinforced phase, a class name of composite materials such as carbon, ceramic as the matrix phase. Compared with carbon / carbon composites, carbon / ceramic composites have better oxidation resistance. C/SiC ceramic matrix composites have the advantages of high temperature resistance, low density, high strength, high thermal conductivity, high wear resistance, high damping coefficient, high thermal radiation coefficient, performance can be designed strongly and so on. The application fields of carbon / ceramic composites: Aerospace thermal protection system, carbon ceramic composite material is one of the best candidate materials of making the ablation surface resistance thermal insulation board. In the field of aerospace, when…
