The effect of milling time on the properties of binderless nanostructured (W,Ti)C consolidated by pulsed current activated sintering
- The effect of milling time on the properties of binderless nanostructured (W,Ti)C consolidated by pulsed current activated sintering
- 손인진; 나권일; 김원백; 임재원; 도정만; 윤진국
- Nanomaterials; Sintering; Mechanical properties; Hard material
- Issue Date
- Journal of ceramic processing research
- VOL 13, NO 3, 272-277
- 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.
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