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The impact of the diamond reinforcing particle size on their interaction with the aluminum matrix of composites in the course of heating
Author(s) -
Popov Vladimir
Publication year - 2018
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6433
Subject(s) - diamond , materials science , nanodiamond , composite material , aluminium , composite number , particle size , annealing (glass) , nanoparticle , tungsten carbide , differential scanning calorimetry , carbide , particle (ecology) , nanotechnology , chemical engineering , oceanography , physics , geology , engineering , thermodynamics
In aluminum matrix composites, the formation of aluminum carbide may occur during heating on contact between aluminum and the carbon reinforcing particles. Samples of composites with an aluminum matrix and various diamond reinforcing particles were prepared to determine the influence of the size of the diamond particles on this process. The composites were obtained via mechanical alloying. Annealing shows that the outcome is different for cases of contact with diamond nanoparticles and microparticles. Differential scanning calorimetry has shown that the reaction between the components to produce aluminum carbide starts at 400°C to 450°C in composite materials made of aluminum and nanodiamond reinforcing particles with a size of 4 to 6 nm. The reaction with diamond microparticles starts at higher temperatures. The studies have shown that the temperature range for the use of composites with an aluminum matrix and nanodiamond reinforcing particles does not exceed 450°C.