Knjižnica tehniških fakultet, Maribor (KTFMB)
  • Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium
    Rudolf, Rebeka ...
    Microstructures of two high noble experimental Au-Pt alloys were compared before and after conditioning for biocompatibility, in order to identify phases and microelements responsible for the alloysć ... corrosive behaviour. Microstructural characterization was carried-out by optical and scanning electron microscopy, in addition to energy dispersive X-ray analysis. X-ray diffraction was applied to determine the phasesć composition and their contribution in the alloys. Additionally, simultaneous thermal analysis was used to identify the temperatures of phase transformations. An overall assessment before conditioning showed that Au-Pt I is a two-phase alloy containing a dominant Au-rich ?1 phase and a minor Pt-rich [alpha]2 phase, while the Au-Pt II alloy contains in addition three minor phases: AuZn3, Pt3Zn and Au1.4Zn0.52. The highest content of Zn (up to 6.76 wt.%) was detected in the Pt3Zn phase. After RPMI cell culture medium conditioning, the Pt3Zn and AuZn3 phases disappeared, suggesting that they are predominantly responsible for Zn loss and the lower corrosive stability of the Au-Pt II alloy.
    Vir: Metals and materials international. - ISSN 1598-9623 (Vol. 16, no. 6, 2010, str. 931-940)
    Vrsta gradiva - članek, sestavni del
    Leto - 2010
    Jezik - angleški
    COBISS.SI-ID - 14751766
    DOI

vir: Metals and materials international. - ISSN 1598-9623 (Vol. 16, no. 6, 2010, str. 931-940)

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