Results 181 to 190 of about 52,862 (219)

Deep purification of detonation nanodiamond material

Journal of Superhard Materials, 2013
The paper presents new alternative procedures of chemical purification of detonation nanodiamonds and diamond-bearing detonation soot to remove water-insoluble metal-containing impurities through a high-temperature treatment using solutions of complexons of concentration 0.5 to 20 wt %, where the ratio between the detonation nanodiamond material and ...
V. Yu. Dolmatov, A. Vehanen, V. Myllymäki, K. A. Rudometkin, A. N. Panova, K. M. Korolev, T. A. Shpadkovskaya   +6 more
openaire   +1 more source

Electron emission properties of detonation nanodiamonds

Physics of the Solid State, 2004
This paper summarizes the results of systematic studies of field electron emission from detonation nanodiamond coatings corresponding to nanodiamond powders of different modifications. The role of the chemical composition of the surface of detonation nanodiamond particles in field emission mechanisms is discussed.
V. V. Zhirnov, O. A. Shenderova, D. L. Jaeger, T. Tyler, D. A. Areshkin, D. W. Brenner, J. J. Hren   +6 more
openaire   +1 more source

Saturable absorption in detonation nanodiamond dispersions

Journal of Nanophotonics, 2017
We report on a saturable absorption in aqueous dispersions of nanodiamonds with femtosecond laser pulse excitation at a wavelength of 795 nm. The open aperture Z-scan experiments reveal that in a wide range of nanodiamond particle sizes and concentrations, a light-induced increase of transmittance occurs.
Viatcheslav Vanyukov, Gennady Mikheev, Tatyana Mogileva, Alexey Puzyr, Vladimir Bondar, Dmitry Lyashenko, Andrey Chuvilin   +6 more
openaire   +1 more source

Influence of the Sign of the Zeta Potential of Nanodiamond Particles on the Morphology of Graphene-detonation Nanodiamond Composites in the form of Suspensions and Aerogels

Technical physics, 2023
M. K. Rabchinskii, A. D. Trofimuk, A. Shvidchenko, M. Baidakova, S. I. Pavlov, D. A. Kirilenko, Yury V. Kulvelis, M. Gudkov, K. Shiyanova, V. Koval, G. Peters, V. T. Lebedev, V. P. Melnikov, A. Dideikin, P. Brunkov   +14 more
semanticscholar   +1 more source

Detonation nanodiamonds in oils and lubricants

Journal of Superhard Materials, 2010
The paper presents the main findings of the investigation into the potential of using detonation nanodiamonds and diamond-containing soot (an intermediate product of the nanodiamond synthesis) as high-performance antifriction and wear-preventive additives to oil-based compounds. The application of these products is demonstrated to offer great benefits:
openaire   +1 more source

Microwave-assisted purification of detonation nanodiamond

Diamond and Related Materials, 2014
In the present work microwave-assisted purification approaches for detonation nanodiamond (DND) are considered, and the resultant impurity content of purified DND revealed by direct ICP-MS and elemental analysis. A significant reduction in noncarbon contaminants as compared with detonation soot was achieved with resulting purity of 99.95%.
Dimitar P. Mitev, Ashley T. Townsend, Brett Paull, Pavel N. Nesterenko   +3 more
openaire   +1 more source

Morphology and Structure of a Charge of Detonation Nanodiamond Doped with Boron

Glass Physics and Chemistry, 2022
O. Shilova, G. P. Kopitsa, T. V. Khamova, Y. Gorshkova, A. Baranchikov, V. Dolmatov   +5 more
semanticscholar   +1 more source

Detonation nanodiamonds as UV radiation filter

Diamond and Related Materials, 2007
Abstract The attenuation of ultraviolet radiation (UVR) by detonation nanodiamonds (DND) can be significant, depending on the concentration, composition of DND surface, size of DND particles and content of nitrogen defects in DND. The ability of DND to attenuate efficiently UVA (320–400 nm), UVB (290–320 nm) and UVC (190–290) radiation via absorption
O. Shenderova, V. Grichko, S. Hens, J. Walch   +3 more
openaire   +1 more source

The size effect of faceted detonation nanodiamond particles on electrorheological behavior of suspensions in mineral oil

Diamond and related materials, 2022
N. M. Kuznetsov, A. Vdovichenko, A. Bakirov, S. Belousov, R. Kamyshinsky, A. Vasiliev, E. S. Kulikova, Roman D. Svetogorov, S. Chvalun, E. Yudina, A. Vul’   +10 more
semanticscholar   +1 more source

Electrical properties of monodispersed detonation nanodiamonds

Applied Physics Letters, 2010
The electrical properties of monodispersed detonation nanodiamonds (DNDs) have been studied; a resistivity of the order of 1012 Ω/sq has been determined, with only one significant conduction pathway being observed. The dielectric character of the DND particles is also good, with dielectric loss tangent values in the range 0.05–0.5 being recorded. These
Aysha Chaudhary, Joseph O. Welch, Richard B. Jackman   +2 more
openaire   +1 more source