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H. Jehn (1984)
High temperature behaviour of platinum group metals in oxidizing atmospheresJournal of The Less Common Metals, 100
Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, H. Harada (1999)
Microstructure and deformation behavior of Ir-Nb two-phase refractory superalloys for various Nb contentScripta Materialia, 40
W. Kingery (1958)
Ceramic fabrication processes
Y. Yamabe-Mitarai, S. Nakazawa, H. Harada (2000)
Creep behavior of Ir-Nb and Ir-Zr alloysScripta Materialia, 43
Y. Yamabe-Mitarai, Y. Ro, H. Harada, T. Maruko (1998)
Ir-base refractory superalloys for ultra-high temperaturesMetallurgical and Materials Transactions A, 29
Pulse electric current sintering (PECS) was tried for Ir-25 at.% Nb (Ir3Nb), which has a high melting temperature of about 2435 °C. Ingot powder was made by crashing an ingot, and the ingot powders were sintered at temperatures between 1700 and 1900 °C up to 2 h under 40 MPa. Pure-metal powder was mixed to achieve a composition of Ir-25 at.% Nb, and the pure-metal powders were sintered at a temperature between 1700 and 1900 °C for up to 1 h. The microstructure and phase structures of sintered samples were investigated by scanning electron microscopy (SEM) and x-ray diffractometry. The sintering mechanism and problems for Ir3Nb in PECS are discussed.
Journal of Materials Engineering and Performance – Springer Journals
Published: Mar 25, 2007
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