Refining effect of hydrogen plasma arc melting on hafnium metal

Joon Woo Bae, Jae Won Lim, Kouji Mimura, Minoru Isshiki

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Removal of metallic impurities from Hf metal by hydrogen plasma arc melting (HPAM) has been examined. Several impurities such as Al, Ti, Cr, Fe, and Cu were efficiently removed when only Ar plasma gas was used. Furthermore, the addition of H2 to Ar plasma gas remarkably improved the removal degrees of Si, Ni, Ge, and Sn as well as above impurities. It was found that HPAM has an excellent effect to eliminate impurities with higher vapor pressures than that of Hf metal.

Original languageEnglish
Pages (from-to)2604-2605
Number of pages2
JournalMaterials Letters
Issue number21-22
Publication statusPublished - 2006 Sep 1


  • Hafnium
  • Hydrogen plasma arc melting
  • Impurities
  • Plasma
  • Purification

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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