Synthesis of nanopowders of Fe-C system via Flow-Levitation method and study of their properties

International Conference on Synthesis and Consolidation of Powder Materials

Kuskov, M.L.^1 ; Zhigach, A.N.^1 ; Leipunsky, I.O.^1 ; Afanasenkova, E.S.^1 ; Safronova, O.A.^1 ; Berezkina, N.G.^1 ; Artemov, V.V.^1^2 ; Zhigalina, O.M.^2^3 ; Khmelenin, D.N.^2

V L Talrose Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, 38, Leninsky prospect, Moscow

119334, Russia^1

Federal Scientific Research Centre Crystallography and Photonics, Russian Academy of Sciences, 59, Leninsky prospect, Moscow

119333, Russia^2

Bauman Moscow State Technical University, ul. Baumanskaya 2-ya, 5/1, Moscow

105005, Russia^3

关键词: Chemical and phase compositions;    Complex compositions;    Flow levitation method;    In-situ reactions;    Internal structure;    Iron nanoparticles;    Thin carbon coating;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/558/1/012021/pdf
DOI  :  10.1088/1757-899X/558/1/012021

来源: IOP

【 摘 要 】

Nanopowders of Fe-C system are synthesized via modified Guen-Miller Flow-Levitation method by in situ reaction of nascent iron nanoparticles with acetylene. Morphology, internal structure, chemical and phase composition are studied by electron microscopy methods, including electron diffraction and element analysis, X-ray phase analysis and CNHS chemical analysis. It is shown that depending on the parameters of the reaction with acetylene (temperature, concentration), particles composition can vary from pure iron with thin carbon coating complex composition consisting predominantly of iron carbide.