Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Metal Nano Powders as a New Getter Material

새로운 게터소재로서의 금속 나노 분말

  • 김원백 (한국지질자원연구원 자원활용소재연구부) ;
  • 박제신 (한국지질자원연구원 자원활용소재연구부) ;
  • 서창열 (한국지질자원연구원 자원활용소재연구부) ;
  • 장한권 (한국지질자원연구원 자원활용소재연구부) ;
  • 이재천 (한국지질자원연구원 자원활용소재연구부) ;
  • 박미영 ((주)세종소재)
  • Published : 2007.02.28
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Abstract

Getter property of nano-sized metallic powders was evaluated as a possible candidate for the future getter material. For the purpose, Ti powders of about 50 nm were prepared by electrical wire explosion. Commercial Ti powders of about 22 micrometer were tested as well for comparison. The room-temperature hydrogen-sorption speed of nano-sized Ti powders was $1.34\;L/sec{\cdot}cm^{2}$ which was more than 4 times higher than that of micron-sized ones. The value is comparable to or even higher than those of commercial products. Its sorption speed increases with activation temperature up to $500^{\circ}C$ above which it deteriorates due to low-temperature sintering effect of nano-sized particles.

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References

  1. T. A. Giorgi, B. Ferrario, and B. Storey: J. Vac. Sci. Technol. A3 (1985) 417 https://doi.org/10.1116/1.573232
  2. J. L. Cecchi and R. J. Knize: J. Vac. Sci. Technol. A1 (1983) 1276 https://doi.org/10.1116/1.572088
  3. C. Boucher, M. Lehoux, G. Veilleux, and B. Terreault: J. Vac. Sci. Technol. A4 (1986) 1766 https://doi.org/10.1116/1.573934
  4. K. Ichmura, N. Inoue, K. Watanabe and T. Takeuchi: J. Vac. Sci. Technol. A2 (1984) 1341 https://doi.org/10.1116/1.572406
  5. R. L. Holtz, V. Provenzano, and M. A. Imam: Nanostruct. Mater. 7 (1996) 259 https://doi.org/10.1016/0965-9773(95)00311-8
  6. ASTM F798-97, American Society for Testing and Materials, Annual Book of ASTM Standards (1966)
  7. Lee et al.: Korean J. of Materials Research, 15 (2005) 1 https://doi.org/10.3740/MRSK.2005.15.1.001
  8. M. Prina, J. G. Kulleck, R. C. Bowman Jr.: J. Alloys Comp., 330-332 (2002) 886 https://doi.org/10.1016/S0925-8388(01)01522-5
  9. J. Zemek, P. Jiricek: Vacuum 71 (2003) 329 https://doi.org/10.1016/S0042-207X(02)00760-1
  10. V. Matolin, M. Johanek: Vacuum 67 (2002) 177 https://doi.org/10.1016/S0042-207X(02)00111-2
  11. J. R. Groza and R. J. Dowding: Nanostruct. Mater. 7 (1996) 749 https://doi.org/10.1016/S0965-9773(96)00046-3