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Article Dans Une Revue Inorganic Materials Année : 2019

High-Pressure, High-Temperature Synthesis of Nanodiamond from Adamantane

Résumé

Abstract— We have studied the high-pressure, high-temperature behavior of adamantane (C10H16) and the associated formation of diamond nano- and microcrystals. Diamond microcrystals have been synthesized at a pressure of 8 GPa and temperatures above 1300–1400°C, whereas large-scale synthesis of nanodiamond has been carried out at higher pressures, near 9.4 GPa, in the narrow temperature range 1250–1330°C. Our experimental data suggest that diamond microcrystals are formed in a fluid growth medium as a result of recrystallization of graphite, an intermediate carbonization product, and that nanodiamond formation is a direct result of adamantane carbonization. © 2019, Pleiades Publishing, Ltd.
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hal-02278536 , version 1 (04-09-2019)

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E.A. Ekimov, K.M. Kondrina, N.E. Mordvinova, O.I. Lebedev, D.G. Pasternak, et al.. High-Pressure, High-Temperature Synthesis of Nanodiamond from Adamantane. Inorganic Materials, 2019, 55 (5), pp.437-442. ⟨10.1134/S0020168519050042⟩. ⟨hal-02278536⟩
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