Mechanochemical Synthesis of Intermetallic Compounds in the Gallium–Iridium System
- Авторлар: Pavlov E.1, Chuprov I.1, Nikulin M.1, Mal’tsev E.1, Pshenichnaya A.1,2, Grigoreva T.3, Pastukhov E.4, Skuratov A.5, Lyakhov N.3
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Мекемелер:
- OAO Krasnoyarsk Plant of Nonferrous Metals Named after V. N. Gulidov
- Kirensky Institute of Physics, Federal Research Center, Siberian Branch, Russian Academy of Sciences
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
- Institute of Metallurgy, Ural Branch, Russian Academy of Sciences
- Siberian Federal University
- Шығарылым: Том 2018, № 8 (2018)
- Беттер: 728-732
- Бөлім: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172036
- DOI: https://doi.org/10.1134/S0036029518080141
- ID: 172036
Дәйексөз келтіру
Аннотация
The interaction between a solid inert metal (Ir) and an active liquid metal (Ga) during mechanical activation in a high-energy planetary mill is studied by X-ray diffraction and scanning electron microscopy with EDS-apparatus for high-resolution energy dispersive X-ray microanalysis. The influence of mechanical activation conditions on the formation of GaxIry intermetallic compounds and GaxIry/Ir composites and on their solubility in various acids is investigated. Being a surfactant for iridium, gallium propagates along the grain boundaries of polycrystalline iridium particles during mechanical activaiton and, hence, sharply decreases their strength. As a result of strong mechanical deformation during activation, the contact surface area between the solid and liquid metals, where the intermetallic compounds form intensely, increases sharply. As a result of treatment of the products of mechanical activaiton by a mixture of concentrated hydrochloric and nitric acids, iridium (>30%) from passes into an acid solution and forms HxIrCly complex compounds, which can interact with bases to form soluble complex salts.
Негізгі сөздер
Авторлар туралы
E. Pavlov
OAO Krasnoyarsk Plant of Nonferrous Metals Named after V. N. Gulidov
Хат алмасуға жауапты Автор.
Email: E.Pavlov@krastsvetmet.ru
Ресей, Krasnoyarsk, 660027
I. Chuprov
OAO Krasnoyarsk Plant of Nonferrous Metals Named after V. N. Gulidov
Email: grig@solid.nsc.ru
Ресей, Krasnoyarsk, 660027
M. Nikulin
OAO Krasnoyarsk Plant of Nonferrous Metals Named after V. N. Gulidov
Email: grig@solid.nsc.ru
Ресей, Krasnoyarsk, 660027
E. Mal’tsev
OAO Krasnoyarsk Plant of Nonferrous Metals Named after V. N. Gulidov
Email: grig@solid.nsc.ru
Ресей, Krasnoyarsk, 660027
A. Pshenichnaya
OAO Krasnoyarsk Plant of Nonferrous Metals Named after V. N. Gulidov; Kirensky Institute of Physics, Federal Research Center, Siberian Branch, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: grig@solid.nsc.ru
Ресей, Krasnoyarsk, 660027; Krasnoyarsk, 660036
T. Grigoreva
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: grig@solid.nsc.ru
Ресей, Novosibirsk, 630128
E. Pastukhov
Institute of Metallurgy, Ural Branch, Russian Academy of Sciences
Email: grig@solid.nsc.ru
Ресей, Yekaterinburg, 620016
A. Skuratov
Siberian Federal University
Email: grig@solid.nsc.ru
Ресей, Krasnoyarsk, 660041
N. Lyakhov
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
Email: grig@solid.nsc.ru
Ресей, Novosibirsk, 630128