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2009 | 7 | 1 | 47-53
Tytuł artykułu

Study by grazing incident diffraction and surface spectroscopy of amalgams from ancient mirrors

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Characterization of four amalgam surfaces, with different alteration degrees from Andalusia historical mirrors, has been carried out by grazing-incidence X-ray diffraction (GIXRD), and other spectroscopic techniques (SEM/EDX, XPS, and REELS). The combination of all these techniques allows determining the corrosion state of the amalgams. The results show that the amalgams are composed in all cases of a binary alloy of tin and mercury. As mercury has high vapour pressure at RT, it slowly segregates and eventually evaporates, it leaves finely divided particles of tin that easily can be oxidize, forming tin monoxide (SnO) and tin dioxide (SnO2). In one of the samples, most of the amalgam remains unoxidized, since Hg0.1Sn0.9 and metallic Sn phases are the major components; in two other samples, Hg0.1Sn0.9 and Sn phases are not detected while SnO2 and SnO phases appear. Finally, in the last studied sample, only SnO2 phase is detected. The surface analyses of these samples by XPS show that, for most of them an unique chemical species (Sn4+) is found. [...]
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
7
Numer
1
Strony
47-53
Opis fizyczny
Daty
wydano
2009-03-01
online
2008-12-23
Twórcy
autor
autor
  • Centre for Research and Restoration of the Museums of France — CNRS, Paris, France
autor
  • Materials Science Institute of Seville (CSIC-US), 41092, Seville, Spain
  • Materials Science Institute of Seville (CSIC-US), 41092, Seville, Spain
autor
  • Materials Science Institute of Seville (CSIC-US), 41092, Seville, Spain
  • Spanish CRG beamline SpLine at the ESRF, F-38043, Grenoble, France
autor
  • Spanish CRG beamline SpLine at the ESRF, F-38043, Grenoble, France
autor
  • Materials Science Institute of Seville (CSIC-US), 41092, Seville, Spain
  • Materials Science Institute of Seville (CSIC-US), 41092, Seville, Spain
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-008-0089-1
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