Results 101 to 110 of about 3,656,499 (148)
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Combustion synthesis of fullerenes
Combustion and Flame, 1992Abstract We report the isolation of C60 and C70 from combustion soot that is produced in high-temperature, low-pressure premixed flat flames. A critical parameter for high fullerene yields in combustion appears to be a very high flame temperature. Equilibrium calculations indicate that low pressures are important, but the experimental evidence is not
J.Thomas Mckinnon +2 more
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Combustion Synthesis of Fullerenes
MRS Proceedings, 1994ABSTRACTThe formation of fullerenes by combustion was investigated for nine benzene/oxygen/argon flames, one acetylene/oxygen/argon- and one toluene/oxygen/argon flame burning at 75 mbar. The flame-generated soot was Soxhlet extracted with toluene and the extract analyzed by HPLC. It was shown that the C60/C70ratio depends on the percentage of argon in
H. Richter +5 more
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Combustion synthesis of diamond
Surface and Coatings Technology, 1989Abstract Diamond has been grown using an unmodified oxyacetylene brazing/ welding torch in air. The typical experiment uses a water cooled substrate holder with a torch nozzle to substrate distance which varies from around 1 mm to 3–4 cm depending upon total gas flow, nozzle size, O 2 :C 2 H 2 ratio etc.
W.A. Yarbrough +2 more
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Combustion Synthesis of Nanostructures
AIP Conference Proceedings, 2002Novel carbon and inorganic 1D nanostructures were prepared by combustion of metal‐polytetrafluoroethylene (PTFE) systems in a calorimetric bomb. The high carbon yield from silicon‐containing PTFE starting materials is due to the production and volatility of SiF4.
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Combustion synthesis of CuFe2O4
Materials Research Bulletin, 2003Abstract Metallic ferrites are investigated as prospective materials for different applications especially as anodes in extractive metallurgy. CuFe2O4, one of the important ferrites, is envisaged for substituting the carbon anode in Hall–Heroult cells.
Kalaiselvan, R. +3 more
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Combustion and materials synthesis
International Journal of Self-Propagating High-Temperature Synthesis, 2017The current issue of International Journal of Self-Propagating High-Temperature Synthesis is dedicated to the 50th anniversary of the ‘solid flame’ discovery, by A.G. Merzhanov, V.M. Shkiro, and I.P. Borovinskaya in 1967, which led to the development of rapid synthesis methods based on exothermic reactions in condensed systems.
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Carbon Combustion Synthesis of Ferrites: Synthesis and Characterization
Industrial & Engineering Chemistry Research, 2007Submicrometer powders of Mn−Zn and Ni−Zn ferrites have been produced by carbon combustion synthesis of oxides (CCSO). The self-propagating temperature front had a maximum temperature of a up to 1300 °C and moved at a velocity 3.5 mm/s. Solid-state interactions between the precursors and crystal growth of the crystalline spinel ferrites started in the ...
Karen S. Martirosyan, Dan Luss
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Synthesis Mechanisms of the Combustion Synthesis of IntermetCers Composites
Advances in Science and Technology, 2006Combustion synthesis techniques have been applied to an equiatomic mixture of Aluminium, Nickel, Titanium and Carbon powders in order to obtain NiAl/TiC composites. Both combustion modes have been used: the Self-propagating High-temperature mode (SHS), in which the reaction propagates through the sample under the form of a heat wave and the Thermal ...
C. Curfs +5 more
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Combustion Synthesis of Nanomaterials
Advanced Materials Research, 2013An experimental study has been conducted in premixed and counterflow diffusion flames in order to obtain the nanocarbon materials. The original results in the field of synthesis of fullerenes, carbon nanotubes, syperhydrophobic soot,grapheme and nickel oxide nanoparticles in hydrocarbon flames were carried out for the last years at the Institute of ...
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Ceramics International, 2004
Abstract The activation of self-propagating combustion reactions in the W–C system was achieved by using an electric field. Self-sustaining combustion in elemental reactants with the composition corresponding to WC can be activated only when the imposed field is above the threshold value of 1V cm −1 . The nature of the combustion products depended on
Guojian Jiang, Hanrui Zhuang, Wenlan Li
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Abstract The activation of self-propagating combustion reactions in the W–C system was achieved by using an electric field. Self-sustaining combustion in elemental reactants with the composition corresponding to WC can be activated only when the imposed field is above the threshold value of 1V cm −1 . The nature of the combustion products depended on
Guojian Jiang, Hanrui Zhuang, Wenlan Li
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