Some Physical Properties of Glassy Carbon

Total Cross Section of Glassy Carbon from 0.001 to 0.1 eV

“…The arrows in the figure indicate the energies of the cutoffs in the total scattering cross section accountable to different lattice planes of the graphite crystals (indicated by hkl, or Miller indices). The relative errors of the measured GC cross sections attributable to counting statistics are less than 1% for energies above 0.002 eV, The present results indicate that GC (1) has total cross section of large value even below Enc of graphite; but (2) retains also some of the characteristics of the cross section of graphite: a dent, though slight, is clearly discernible on the curve at the point corresponding to the (002) cutoff, and another dent represents collectively the dips at (011), (004) and (013), while those at (110), (112), (006) and (114) have retained their mark visibly on the GC cross section around 0.02 eV. These characteristics suggest partial growth of the graphite structure in the amorphous material.…”

SU-8 Photolithography as a Toolbox for Carbon MEMS

“…Regarding its mechanical properties, its Young's modulus ranges between 10 and 40 GPa and features a hardness of 6 to 7 on Mohs' scale, a value comparable to that of quartz. Its density value falls between 1.4 and 1.5 g/cm 3 [8], compared to 2.3 g/cm 3 for graphite, hence suggesting a significant degree of porosity. X-ray diffraction studies have shown that glass-like carbon presents an extremely small pore size, around 50 Å, of a closed nature [9,10].…”

Evolution of glassy carbon under heat treatment: correlation structure–mechanical properties

“…The disordered, non-graphitizing glassy carbons, also called glass-like carbons, are typically synthesized by pyrolysis of polymeric precursor such as phenolic resins or polyfurfuryl alcohol [1][2][3][4]. Due to their relative ease of production and a diverse range of physical properties, such as high thermal resistance, extreme chemical stability, low density and great hardness compared with other carbons, gases impermeability, and high electrical conductivity, these carbons have been extensively industrially applied since decades.…”