Synthesis of W-Cu composite nanoparticles by the electrical explosion of two wires and their consolidation by spark plasma sintering

Research output: Contribution to journalArticle

Abstract

This research shows the possibility of obtaining composite W-Cu nanoparticles with the core-shell structure and high content of copper by means of electrical explosion of intertwined W and Cu wires. The use of electric pulse plasma sintering on the obtained W-Cu composite nanoparticles in vacuum in the temperature range 900 °C-1030 °C over 10 min has allowed us to fabricate 3D materials with the relative density of 95.3 ... 98.9% and a conductivity that is close to the theoretical one (63.5%-64.1%IACS). Also, despite a significant content of copper, the microhardness of the 3D material was (2.68-2.7 GPa). High microhardness of the two-phase composite is attributed to its fine-grain structure. The conductivity and microhardness of the 3D W-Cu composite make it a promising material for different electrical engineering applications.

Original languageEnglish
Article number1265I9
JournalMaterials Research Express
Volume6
Issue number12
DOIs
Publication statusPublished - 2019

Keywords

  • conductivity
  • electrical explosion of wires
  • fine-grain structure
  • microhardness
  • spark plasma sintering
  • W-Cu nanoparticles

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

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