Fabrication of Ir-Nb alloys with addition of Ni or Al by pulse electric current sintering

C. Huang, Y. Yamabe-Mitarai, H. Harada

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Ir-Nb alloys were fabricated via a pulse electric current sintering (PECS) process with addition of Ni or Al from powder mixtures. A sintering temperature of 1800 °C and a holding time of 4 h were used. Relative densities of sintered sample exceeded 90% theoretical density. Phases and microstructures were analyzed. The influence of Ni and Al on the microstructure was compared. Metal loss during sintering and the existence of pores were the main problems found in this study.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalInternational Journal of Refractory Metals and Hard Materials
Volume20
Issue number3
DOIs
Publication statusPublished - 2002 May
Externally publishedYes

Keywords

  • Fcc phase
  • Ir-Nb alloys
  • Ir-based refractory superalloys
  • L1 phase
  • Pulse electric current sintering

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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