Mechanochemical Synthesis of Intermetallic Compounds in the Gallium–Iridium System
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 o...
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| Veröffentlicht in: | Russian metallurgy Metally 2018-08, Vol.2018 (8), p.728-732 |
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| container_title | Russian metallurgy Metally |
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| creator | Pavlov, E. A. Chuprov, I. V. Nikulin, M. V. Mal’tsev, E. V. Pshenichnaya, A. A. Grigoreva, T. F. Pastukhov, E. A. Skuratov, A. P. Lyakhov, N. Z. |
| description | 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 Ga
x
Ir
y
intermetallic compounds and Ga
x
Ir
y
/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 H
x
IrCl
y
complex compounds, which can interact with bases to form soluble complex salts. |
| doi_str_mv | 10.1134/S0036029518080141 |
| format | Article |
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x
Ir
y
intermetallic compounds and Ga
x
Ir
y
/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 H
x
IrCl
y
complex compounds, which can interact with bases to form soluble complex salts.</description><identifier>ISSN: 0036-0295</identifier><identifier>EISSN: 1555-6255</identifier><identifier>EISSN: 1531-8648</identifier><identifier>DOI: 10.1134/S0036029518080141</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Chemistry and Materials Science ; Complex compounds ; Deformation ; Gallium ; Grain boundaries ; Intermetallic compounds ; Iridium ; Liquid metals ; Materials Science ; Metallic Materials ; Planetary mills ; Scanning electron microscopy ; X-ray diffraction</subject><ispartof>Russian metallurgy Metally, 2018-08, Vol.2018 (8), p.728-732</ispartof><rights>Pleiades Publishing, Ltd. 2018</rights><rights>Russian Metallurgy (Metally) is a copyright of Springer, (2018). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c268t-1945cf75244f005cdfe343e6bd3154b08640f36babec41f7160c53ea96d355443</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0036029518080141$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0036029518080141$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Pavlov, E. A.</creatorcontrib><creatorcontrib>Chuprov, I. V.</creatorcontrib><creatorcontrib>Nikulin, M. V.</creatorcontrib><creatorcontrib>Mal’tsev, E. V.</creatorcontrib><creatorcontrib>Pshenichnaya, A. A.</creatorcontrib><creatorcontrib>Grigoreva, T. F.</creatorcontrib><creatorcontrib>Pastukhov, E. A.</creatorcontrib><creatorcontrib>Skuratov, A. P.</creatorcontrib><creatorcontrib>Lyakhov, N. Z.</creatorcontrib><title>Mechanochemical Synthesis of Intermetallic Compounds in the Gallium–Iridium System</title><title>Russian metallurgy Metally</title><addtitle>Russ. Metall</addtitle><description>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 Ga
x
Ir
y
intermetallic compounds and Ga
x
Ir
y
/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 H
x
IrCl
y
complex compounds, which can interact with bases to form soluble complex salts.</description><subject>Chemistry and Materials Science</subject><subject>Complex compounds</subject><subject>Deformation</subject><subject>Gallium</subject><subject>Grain boundaries</subject><subject>Intermetallic compounds</subject><subject>Iridium</subject><subject>Liquid metals</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Planetary mills</subject><subject>Scanning electron microscopy</subject><subject>X-ray diffraction</subject><issn>0036-0295</issn><issn>1555-6255</issn><issn>1531-8648</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kE1OwzAQhS0EEqVwAHaRWAdm4p8kS1RBqVTEomUdJY5NUyV2sZNFd9yBG3ISHAWJBWI1o3nfeyM9Qq4RbhEpu9sAUAFJzjGDDJDhCZkh5zwWCeenZDbK8aifkwvv9wApgMhnZPus5K40Vu5U18iyjTZH0--Ub3xkdbQyvXKd6su2bWS0sN3BDqb2UWOiAEXL8T50Xx-fK9fUYQtu36vukpzpsvXq6mfOyevjw3bxFK9flqvF_TqWicj6GHPGpU55wpgG4LLWijKqRFVT5KyCTDDQVFRlpSRDnaIAyakqc1FTzhmjc3Iz5R6cfR-U74u9HZwJL4skwIiQMhEonCjprPdO6eLgmq50xwKhGMsr_pQXPMnk8YE1b8r9Jv9v-gbPeXFI</recordid><startdate>20180801</startdate><enddate>20180801</enddate><creator>Pavlov, E. 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A.</au><au>Chuprov, I. V.</au><au>Nikulin, M. V.</au><au>Mal’tsev, E. V.</au><au>Pshenichnaya, A. A.</au><au>Grigoreva, T. F.</au><au>Pastukhov, E. A.</au><au>Skuratov, A. P.</au><au>Lyakhov, N. Z.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mechanochemical Synthesis of Intermetallic Compounds in the Gallium–Iridium System</atitle><jtitle>Russian metallurgy Metally</jtitle><stitle>Russ. Metall</stitle><date>2018-08-01</date><risdate>2018</risdate><volume>2018</volume><issue>8</issue><spage>728</spage><epage>732</epage><pages>728-732</pages><issn>0036-0295</issn><eissn>1555-6255</eissn><eissn>1531-8648</eissn><abstract>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 Ga
x
Ir
y
intermetallic compounds and Ga
x
Ir
y
/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 H
x
IrCl
y
complex compounds, which can interact with bases to form soluble complex salts.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0036029518080141</doi><tpages>5</tpages></addata></record> |
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| subjects | Chemistry and Materials Science Complex compounds Deformation Gallium Grain boundaries Intermetallic compounds Iridium Liquid metals Materials Science Metallic Materials Planetary mills Scanning electron microscopy X-ray diffraction |
| title | Mechanochemical Synthesis of Intermetallic Compounds in the Gallium–Iridium System |
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