Mechanochemical Synthesis of Intermetallic Compounds in the Gallium-Iridium System : научное издание

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1134/S0036029518080141

Ключевые слова: mechanochemical synthesis, intermetallic compounds, gallium, iridium, complex compounds of iridium, Concrete additives, Concrete mixtures, Energy utilization, Industrial research, Industrial wastes, Mechanical properties, Minerals, Scanning electron microscopy, X ray spectrometers, Chemical compositions, Hydration reaction, Local raw materials, Mechanic

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.

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Издание

Журнал: RUSSIAN METALLURGY

Выпуск журнала: Is. 8

Номера страниц: 728-732

ISSN журнала: 00360295

Место издания: MOSCOW

Издатель: PLEIADES PUBLISHING INC

Авторы

  • Pavlov E.A. (OAO Krasnoyarsk Plant Nonferrous Met, Krasnoyarsk 660027, Russia)
  • Chuprov I.V. (OAO Krasnoyarsk Plant Nonferrous Met, Krasnoyarsk 660027, Russia)
  • Nikulin M.V. (OAO Krasnoyarsk Plant Nonferrous Met, Krasnoyarsk 660027, Russia)
  • Mal'tsev E.V. (OAO Krasnoyarsk Plant Nonferrous Met, Krasnoyarsk 660027, Russia)
  • Pshenichnaya A.A. (OAO Krasnoyarsk Plant Nonferrous Met, Krasnoyarsk 660027, Russia; Russian Acad Sci, Siberian Branch, Fed Res Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Grigoreva T.F. (Russian Acad Sci, Siberian Branch, Inst Solid State Chem & Mechanochem, Novosibirsk 630128, Russia)
  • Pastukhov E.A. (Russian Acad Sci, Ural Branch, Inst Met, Ekaterinburg 620016, Russia)
  • Skuratov A.P. (Siberian Fed Univ, Krasnoyarsk 660041, RussiaArticle)
  • Lyakhov N.Z. (Russian Acad Sci, Siberian Branch, Inst Solid State Chem & Mechanochem, Novosibirsk 630128, Russia)

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