Abstract
The paper addresses the influence of surface modification through alteration of the functional top surface layer on the thermal stability of nanodiamond. The modification of nanodiamond by a high-temperature activation of its surface, which is followed by chemical treatment, is found to reduce concentration of metal impurities and oxygen-containing surface groups that are desorbed at temperatures below 773 K. As a consequence, the rate of oxidation of the modified diamonds at temperatures up to 773 K is 1.7 times slower. The oxidation onset temperature is shifted by 100 degrees.
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Original Russian Text © G.P. Bogatyreva, M.A. Marinich, V.Ya. Zabuga, G.G. Tsapyuk, A.N. Panova, G.A. Bazalii, 2008, published in Sverkhtverdye Materialy, 2008, Vol. 30, No. 5, pp. 26–32.
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Bogatyreva, G.P., Marinich, M.A., Zabuga, V.Y. et al. The effect of surface modification on thermal stability of nanodiamonds. J. Superhard Mater. 30, 305–310 (2008). https://doi.org/10.3103/S1063457608050043
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DOI: https://doi.org/10.3103/S1063457608050043