Graphite crystallizes in both hexagonal (2H) and rhombohedral (3R) systems. It is known that the 3R modification in graphite occurs locally by grinding of 2H crystal, and disappears by annealing at high temperature or decomposition of its intercalation compounds [Boehm 1955]. It was reported that the 3R phase content in artificial graphite, which was estimated from the integrated intensities of...

A method is presented for incorporating a solid into a coarse grain liquid model. From the fully atomistic solid-liquid site-site description the solid is replaced by an implicit potential. The liquid particles are then coarse grained by appealing to statistical mechanics and probability theory. The dimensionality problem which arises is overcome with an approximate treatment and a force field ...

The influence of the size carbon particles on parameters graphite–diamond phase transformation is considered. It shown that surface energy nanoparticles various shapes (spherical, columnar) makes a significant contribution to their total thermodynamic potential, which leads shift in diamond–graphite equilibrium curve low pressure region and an expansion diamond stability region. At same time, c...

Interstellar extinction by fractal polycrystalline graphite clusters?, Andersen et al. Abstract Certain dust particles in space are expected to appear as clusters of individual grains. The morphology of these clusters could be fractal or compact. To determine how these structural features would affect the interpretation of the observed interstellar extinction peak at ∼ 4.6 µm, we have calculate...

Kinetics and mechanism of hydrogen adsorption in as-obtained ground nuclear graphite Wendelstein 7-X are examined. In the first time interval process is determined by dissociation molecule, occurring at outer surface open micropores particles. However, second interval, slowest step inter-granular inter-crystallite diffusion nanopores graphite. The X-ray analysis shows, that grinding results fin...

Direct mass exfoliation of graphene from bulk graphite with high yield and productivity for commercial applications is challenging. This work proposes self-grinding using the mutual shear friction particles to fabricate microcrystalline graphite. The concept implemented microbeads as grinding medium drive between nanocrystals in a high-concentration paste. proposed approach substantially improv...

Interfacial engineering has been investigated as a method of increasing thermal conductivity in variety aluminium/graphite composites but remains unexplored the few graphite-containing aluminium foams developed to date. In this study, replication was used fabricate composite by infiltrating with liquid packed preforms containing SiC-coated oriented graphite flakes and NaCl particles, latter act...