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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…
Classification of graphite tubes 1, according to the heating way: longitudinally heated graphite tube, transverse heating graphite tube 2, according to the performance: ordinary graphite tube (non thermal) for low temperature (less than or equal to 2000 DEG C) of atomic elements such as silver, cadmium and lead; pyrolytic graphite tubes for low, medium and high temperature (>2500 DEG C) atomic elements; suitable for middle and low temperature platform graphite tube (less than or equal to 2400 DEG C) atomization element. The function of graphite tube Atomic absorption spectrometry is according to the measured element in a gaseous atom has strong absorption effect and the establishment of the elements of the atomic resonance radiation. This method has the advantages of…
Graphite heat exchanger is a heat exchanger made of graphite for heat transfer component. The graphite to be used in the manufacture of heat exchanger is not transparent, and is commonly used in impregnated graphite and graphite. Graphite heat exchanger structure Graphite heat exchanger can be divided into 3 types: the structure can be divided into block hole type, tube shell type and plate type. The block hole type is composed of a plurality of blocks with a plurality of holes. Shell: shell and tube heat exchanger in graphite heat exchanger occupies an important position, according to the structure is divided into fixed and floating head two. Plate: made of graphite bonding plate heat exchanger. In addition, there are immersion,…
