Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B4C-xwt%C (x=0, 0.25, 0.5, 1) Composites

SONMEZ S., Öveçoğlu M. L.

ACTA PHYSICA POLONICA A, vol.131, no.1, pp.193-196, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 131 Issue: 1
  • Publication Date: 2017
  • Doi Number: 10.12693/aphyspola.131.193
  • Journal Name: ACTA PHYSICA POLONICA A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.193-196
  • Istanbul Technical University Affiliated: Yes

Abstract

Mechanical alloying processes were carried out in a Spex mixer/mill to synthesize W-2wt% B4C-x wt% C (x = 0, 0.25, 0.5, 1) powders for durations of 1 and 9 h in argon atmosphere. Mechanically alloyed powders were consolidated into green compacts by uniaxial cold press under 500 MPa and solid phase sintered at 1770 degrees C under hydrogen and argon atmospheres for 1 h and 5 h. Effects of milling duration as well as C addition on the microstructural and mechanical properties of the sintered W-2wt% B4C-x wt% C composite samples were investigated. The microstructural and mechanical characterizations of the sintered samples were carried out by scanning electron microscope, energy dispersive X-ray spectroscopy, X-ray diffraction, and Vickers hardness analyses. Density measurements and hardness measurements of the sintered samples were also carried out.