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- 전기선폭발법으로 제조한 나노 W(텅스텐) 분말의 환원처리 및 방전플라즈마소결에 의한 조밀화
- 김지순, 김철희, 박은주, 권영순, 김진천, 이성호, 정동익
- Reduction and Spark Plasma Sintering of the W(Tungsten) Nanopowder Produced by the Electric Explosion of Wire Process
- Ji-Soon Kim, Cheol-Hee Kim, Eun-Ju Park, Young-Soon Kwon, Jin-Chun Kim, Sung-Ho Lee, Dong-Ik Jung
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Journal of Korean Powder Metallurgy Institute 2006;13(4):269-277
DOI: https://doi.org/10.4150/KPMI.2006.13.4.269
1울산대학교 첨단소재공학부
2울산대학교 첨단소재공학부
3울산대학교 첨단소재공학부
4울산대학교 첨단소재공학부
5울산대학교 첨단소재공학부
6국방과학연구소 기술연구본부
7국방과학연구소 기술연구본부
1School of Materials Science & Engineering, University of Ulsan
2School of Materials Science & Engineering, University of Ulsan
3School of Materials Science & Engineering, University of Ulsan
4School of Materials Science & Engineering, University of Ulsan
5School of Materials Science & Engineering, University of Ulsan
6Technology Research Center, Agency for Defense Development
7Technology Research Center, Agency for Defense Development
2울산대학교 첨단소재공학부
3울산대학교 첨단소재공학부
4울산대학교 첨단소재공학부
5울산대학교 첨단소재공학부
6국방과학연구소 기술연구본부
7국방과학연구소 기술연구본부
1School of Materials Science & Engineering, University of Ulsan
2School of Materials Science & Engineering, University of Ulsan
3School of Materials Science & Engineering, University of Ulsan
4School of Materials Science & Engineering, University of Ulsan
5School of Materials Science & Engineering, University of Ulsan
6Technology Research Center, Agency for Defense Development
7Technology Research Center, Agency for Defense Development
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Abstract
[ beta-W(W_3O) ] oxide layer on the surface of each W(tungsten) nanopowder produced by the electric explosion of wire(EEW) process were formed during the 1vol.% air passivation process. The oxide layer hindered sintering densification of compacts during SPS process. The oxide phase was reduced to the pure W phase during SPS. The W nanopowder's compacts treated by the hydrogen reduction showed high sintered density of 94.5%. after SPS process at 1900°C.
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