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Synthesis of Ir1 – x Re x (0.15=x=0.40) solid solutions under high-pressure and high-temperature

From Sergey A Gromilov 1 2 | Tatiyana V Dyachkova 3 | Elena A Bykova 1 | Nadezda V Tarakina 3 4 | Yurii G Zaynulin 3 | Kirill V Yusenko 5

1Nikolaev Institute of Inorganic Chemistry, Novosibirsk, Russia
2Physics Department, Novosibirsk State University, Novosibirsk, Russia
3Institute of Solid State Chemistry, Ekaterinburg, Russia
4Physikalisches Institut, Universität Würzburg, Würzburg, Germany
5solid-chem GmbH, Bochum, Germany

Appeared in International Journal of Materials Research 2013/05, Page 476-482
[DOI: 10.3139/146.110884]

 

Abstract

Ir1 – x Re x (0.15=x=0.40) phases prepared under high-pressure, high-temperature conditions from nanopowders of iridium and rhenium were characterized using powder X-ray diffraction and scanning electron microscopy. Structural characteristics of the phases obtained were identical with the corresponding parameters for the solid solutions prepared by means of melting and thermal decomposition of the precursors. The data obtained make it possible to improve solid-state solubility limits in the binary Ir–Re phase diagram. As revealed, the maximum solid solubility of Ir in Re is 68at.%, and that of Re in Ir is 20at.%.

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