Use of Nuclear Physics in Related Fields of Science and National Economy

Leipunskii, A.I.

doi:10.1070/pu1968v011n03abeh003831

Cited by 2 publications

(1 citation statement)

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“…The existence of this pseudo-equilibrium region was at the basis of the method of synthesizing diamond starting from carbon saturated solutions of molten iron, silver, or silicates. In 1938, Rossini and Jessup [58] of the U.S. Bureau of Standards used accurate thermodynamic data to estimate that at 0 K the lowest pressure at which diamond would be stable against graphite is around 1.3 GPa, and around 2 GPa at 500 K. In 1939, the Russian scientist Leipunskii [59] published a review of the problem of diamond synthesis. On the basis of thermodynamic data, he suggested that the melting curve of graphite might be at about 4000 K, with possibly some increase with pressure.…”

Section: The History Of Carbon Phase Diagrammentioning

confidence: 99%

State-of-the-art models for the phase diagram of carbon and diamond nucleation

et al. 2008

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We review recent developments in the modelling of the phase diagram and the kinetics of crystallization of carbon. In particular, we show that a particular class of bond-order potentials (the so-called LCBOP models) account well for many of the known structural and thermodynamic properties of carbon at high pressures and temperatures. We discuss the LCBOP models in some detail. In addition, we briefly review the "history" of experimental and theoretical studies of the phase behaviour of carbon. Using a well-tested version of the LCBOP model (viz. LCBOPI + ) we address some of the more controversial hypotheses concerning the phase behaviour of carbon, in particular: the suggestion that liquid carbon can exist in two phases separated by a first-order phase transition and the conjecture that diamonds could have formed by homogeneous nucleation in Uranus and Neptune.

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Section: The History Of Carbon Phase Diagrammentioning

confidence: 99%