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The effect of milling time on the properties of binderless nanostuctured (W,Ti)C consolidated by pulsed current activated sintering

  • In Jin Shon*
  • , Kwon Il Na
  • , Wonbaek Kim
  • , Jae Won Lim
  • , Jung Mann Doh
  • , Jin Kook Yoon
  • *Corresponding author for this work
  • Jeonbuk National University
  • Korea Institute of Geoscience, Mining and Materials Resources
  • Korea Institute of Science and Technology

Research output: Contribution to journalJournal articlepeer-review

Abstract

The grain size of (Ti, W)C decreases with an increase in ball milling time. Nanopowder of (Ti, W)C was fabricated by high energy ball milling for 10 h. The rapid sintering of nanostuctured (Ti, W)C hard materials was investigated with pulsed current activated sintering via a heating sintering process. The advantage of this process is that it allows very quick densification to near theoretical density and prohibition of grain growth in nanostuctured materials. A dense nanostructured (Ti,W)C hard material with a relative density of up to 99% was produced with simultaneous application of 80 MPa pressure and a pulsed current of 2700A within 3 minutes. The effect of ball milling time on the sintering behavior, grain size and mechanical properties of binderless (Ti,W)C was investigated.

Original languageEnglish
Pages (from-to)272-277
Number of pages6
JournalJournal of Ceramic Processing Research
Volume13
Issue number3
StatePublished - 2012

Keywords

  • Hard material
  • Mechanical properties
  • Nanomaterial
  • Sintering

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science

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