Open AccessMorphology and phase composition of hybrid powders based on aluminum, synthesized for a gas-dynamic spraying of coatings by milling
Author(s) -
A. V. Sobol’kov,
А. В. Аборкин
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/558/1/012049
Subject(s) - materials science , ball mill , crystallite , scanning electron microscope , particle size , particle size distribution , morphology (biology) , aluminium , phase (matter) , particle (ecology) , composite material , analytical chemistry (journal) , metallurgy , chemical engineering , chromatography , chemistry , oceanography , organic chemistry , engineering , geology , biology , genetics
Hybrid powders of the AlMg 2 + 1 wt % TiC/MWNT + 10−50 wt % Al 2 O 3 system were obtained using the method of mechanical processing in a planetary ball mill. The powders were characterized using the methods of scanning electron microscopy, particle size distribution testing and X-ray analysis. It is shown that an increase in the content of Al 2 O 3 particles from 10 to 50 wt % leads to a decrease in the average particle size of the synthesized powder from 49 to 16 μm, respectively. The proportion of particles smaller than 5 μm, depending on the concentration of Al 2 O 3 , varies in the range of 1.2−15.1%. At the same time, the size of the matrix material crystallites decreases from 58 and 52 nm, respectively. The resulting hybrid powder can be used to create functional coatings using cold gas-dynamic spraying.