Study of composition of the ultrafine material produced from graphite_catalyst mixture under extreme energy action

31st International Conference on Equations of State for Matter

Melnikova, N.V.^1 ; Alikin, D.O.^1 ; Melnikov, Yu B^1,2 ; Grigorov, I.G.^3 ; Chaikovsky, S.A.^4 ; Labetskaya, N.A.^4 ; Datsko, I.M.^4 ; Oreshkin, V.I.^4,5 ; Ratakhin, N.A.^4 ; Khishchenko, K.V.^6

Ural Federal University, Lenina Avenue 51, Ekaterinburg

620000, Russia^1

Ural State University of Economics, 8 Marta Street 62, Ekaterinburg

620219, Russia^2

Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences, Pervomaiskaya Street 91, Ekaterinburg

620219, Russia^3

Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences, Akademichesky Avenue 2/3, Tomsk

634055, Russia^4

National Research Tomsk Polytechnical University, Lenin Avenue 30, Tomsk

634050, Russia^5

Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13, Moscow

125412, Russia^6

关键词: Confocal Raman microscopy;    Current amplitude;    Explosion products;    Faceted particles;    High-current generator;    Impedance spectroscopy;    X-ray microanalysis;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012012/pdf
DOI  :  10.1088/1742-6596/774/1/012012

来源: IOP

【 摘 要 】

Ultrafine materials were produced under conditions of extreme energy effects on the mixture of graphite and Ni-Mn catalysts. For the purpose to obtain various forms of carbon, including diamond-like forms, experiments were performed on a MIG high-current generator with the current amplitude of 2-2.5 MA and current rise time of 100 ns. The composition of the explosion products was studied using x-ray diffraction and x-ray phase analyses, the impedance spectroscopy, optical and scanning electron microscopy, x-ray microanalysis and energy dispersive x-ray analysis and the laser confocal Raman microscopy. It was found that the carbon in the studied materials is in the graphite, diamond-like (the faceted particles or agglomerates of faceted particles in size about or less than 250 nm) and amorphous forms.