INVESTIGATION OF ADAMANTANE-DIAMOND TRANSFORMATION. THE RADICAL MECHANISM OF THE FORMATION OF DIAMOND NANOPARTICLES UNDER SHOCK-WAVE ACTION ON ADAMANTANE
B. P. Tolochko1,2, A. P. Chernyshev1, B. B. Bokhonov1, K. A. Ten3, E. R. Pruuel3, N. Z. Lyakhov1
1Institue of Solid State Chemistry and Mechanochemistry Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
3Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: адамантан, трициклодекан (CH), синхротронное излучение, алмаз, наноалмаз, ультрадисперсный алмаз, малоугловое рассеяние, ударные волны, детонация, adamantane, tricyclo decane (CH), synchrotron radiation, diamond, nanodiamond, ultrafine analysis, small-angle X-ray scattering, shock waves, detonation
Abstract
The use of the modern installations with the synchrotron radiation allowed obtaining the information about the dynamics of rapid transformation of adamantane into diamond within 2 ms under shock-wave action with nanosecond time resolution. The yield of diamond was 30%. An explanation of adamantane-diamond transformation is proposed. Hydrogen evolved during adamantane decomposition easily diffuses over diamond lattice. However, during synthesis time (~1 μs) hydrogen does not have enough time to go out of diamond particles. Experiment was made at accelerate complex VEPP-3/VEPP-4.
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