The solid solution between platinum and palladium in nature

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBindi, L.
dc.creatorZaccarini, F.
dc.creatorGaruti, G.
dc.creatorAngeli, N.
dc.date2014-05-27T11:29:57Z
dc.date2016-10-25T18:51:12Z
dc.date2014-05-27T11:29:57Z
dc.date2016-10-25T18:51:12Z
dc.date2013-07-15
dc.date.accessioned2017-04-06T02:31:04Z
dc.date.available2017-04-06T02:31:04Z
dc.identifierMineralogical Magazine, v. 77, n. 3, p. 269-274, 2013.
dc.identifier0026-461X
dc.identifier1471-8022
dc.identifierhttp://hdl.handle.net/11449/75968
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75968
dc.identifier10.1180/minmag.2013.077.3.04
dc.identifierWOS:000319481000004
dc.identifier2-s2.0-84879906138
dc.identifierhttp://dx.doi.org/10.1180/minmag.2013.077.3.04
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/896690
dc.descriptionChemical and structural data are reported for platinum-palladium intermediates from two nuggets found at Corrego Bom Sucesso, Minas Gerais, Brazil. Three grains with simple stoichiometries (i.e. PtxPd1 -x with x ∼0.67, ∼0.5 and ∼0.33, which correspond to Pt2Pd, PtPd and PtPd2, respectively) were characterized by single-crystal X-ray diffraction and electron-probe microanalysis. In the absence of single-crystal data it might be tempting to hypothesize that such simple stoichiometries represent distinct mineral species, however structural analyses show that all of the phases are cubic and crystallize in space group Fm3̄m. They are, therefore, natural intermediates in the palladium-platinum solid solution. Reflectance and micro-hardness values are reported for the samples and a comparison with the pure metallic elements made. On the basis of information gained from the chemical and structural characterization it can be concluded that there is a complete solid solution between Pt and Pd in nature. These findings corroborate results from experiments on synthetic compounds. © 2013 The Mineralogical Society.
dc.languageeng
dc.relationMineralogical Magazine
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAlloys
dc.subjectChemical composition
dc.subjectPalladium
dc.subjectPlatinum
dc.subjectUnit-cell parameters
dc.subjectChemical compositions
dc.subjectMinas Gerais , Brazil
dc.subjectPalladium-platinum
dc.subjectPlatinum and palladiums
dc.subjectSingle crystal x-ray diffraction
dc.subjectStructural characterization
dc.subjectSynthetic compounds
dc.subjectAlloying
dc.subjectCerium alloys
dc.subjectPalladium alloys
dc.subjectSolid solutions
dc.subjectStoichiometry
dc.subjectX ray diffraction
dc.subjectPlatinum alloys
dc.subjectalloy
dc.subjectchemical composition
dc.subjectcrystal structure
dc.subjectelectron probe analysis
dc.subjectpalladium
dc.subjectplatinum
dc.subjectsolid solution
dc.subjectstoichiometry
dc.subjectX-ray diffraction
dc.subjectBrazil
dc.subjectMinas Gerais
dc.titleThe solid solution between platinum and palladium in nature
dc.typeOtro


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