Abstract
Pulse electric current sintering (PECS) was tried as a novel powder metallurgy (PM) process for five Ir-based elemental powder mixtures. Sintering was carried out at 1800 °C for 4 h for all the samples. Specimens with a relative density, more than 90% theoretical density, were obtained after sintering. More than two phases were found; however, a single phase (L12 or B2) was expected, according to the phase diagram. The densification mechanism is discussed briefly, and remaining problems are presented.
Original language | English |
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Pages (from-to) | 629-634 |
Number of pages | 6 |
Journal | Journal of Materials Engineering and Performance |
Volume | 10 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2001 Dec 1 |
Externally published | Yes |
Keywords
- Density
- Elemental powder
- Ir-based refractory superalloy
- Microstructure
- Phase
- Pore
- Powder metallurgy
- Pulse electric current sintering
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering