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The specific surface area and effective thermal conductivity of ultrathin graphite foams (UGFs) grown by chemical vapor deposition (CVD) have been limited by the large pore sizes of reticulated nickel foam templates. Here we show that nickel templates formed by sintering of low-cost nickel powder can reduce pore size and increase specific surface area. Accordingly, the effective density of a free-stranding...
Three condensed polynuclear aromatic resins with different molecular weights (MWs) and MW distributions were heated at 900, 1500, 2200, 2600 and 3000°C for 2h. The resulting carbons were characterized by XRD, helium pycnometry and a powder electrical resistance test. The graphitic, amorphous and turbostratic constituents in the carbons were obtained from XRD. Results showed that both the MW and the...
Mesocarbon microbeads were molded at 100MPa pressure, and then heat-treated. In order to seek optimum seal effect, the graphite from MCMBs were impregnated with pitch and resins, and then carbonizated at 500°C The resulting graphite from MCMBs/pitch-based carbon/phenolic-based carbon composites were evaluated in terms of physical properties, textures and the seal properties to determine their potential...
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