Research Log: 111.04.02

TheOnlyProphet
Research Log: 111.04.02

Fullerite-c70 Gas:

Shock-induced phase transitions of C₇₀ fullerite with hexagonal close-packed structure were experimentally studied in the pressure range 8 to 36 GPa. It was found that C₇₀ fullerite undergoes a series of polymorphic phase transitions under step-like shock-wave compression. The hexagonal close-packed structure of C₇₀ fullerite remained practically unchanged at shock pressure up to 8 GPa. Shock-induced transformation of the hexagonal structure into face centered cubic structure was fixed at pressures in the range 8-23.5 GPa. The depth of this transformation increases with the shock pressure. Upon further increase of the shock pressure the destruction of C₇₀ molecules occurs. This destruction is accompanied by the formation of graphite-like carbon.

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