Fabrication of sub-stoichiometric titanium carbide-reinforced copper matrix composites using electropulsing-assisted flash sintering

Xiang, Siqi; Hu, Hanzhi; Liang, Yihan; Zhang, Xinfang

doi:10.1016/j.compositesa.2021.106664

Cited by 8 publications

(1 citation statement)

References 34 publications

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“…Furthermore, the presence of carbide may retard particle coarsening during annealing in order to retain the strength of the composite. In electro-friction application of contact materials, carbide was purposely added into Cu to increase mechanical properties [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ] and wear resistance [ 11 , 12 , 13 , 14 , 15 , 16 ]. Tungsten carbide has unique properties, such as high melting point, extremely high hardness, fracture toughness, compressive strength and excellent corrosion resistance and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

In Situ Tungsten Carbide Formation in Nanostructured Copper Matrix Composite Using Mechanical Alloying and Sintering

Yusoff

Hussain

2022

Materials

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In this study, an in situ nanostructured copper tungsten carbide composite was synthesized by mechanical alloying (MA) and the powder metallurgy route. The microstructure and phase changes of the composite were characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. Tungsten carbide phases (WC and W2C) were only present after MA and combination of sintering. Higher energy associated with a longer milling time was beneficial for the formation of WC. Formation of W2C and WC resulted from internal refinement due to heavy plastic deformation in the composite. The solubility of the phases in the as-milled and sintered composite was described by the changes of the lattice parameter of Cu. Chemical analysis of the surface of a composite of W 4f and C 1s revealed that the increased defects introduced by MA affect the atomic binding of the W-C interaction.

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