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 alloys' 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 phases' 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 alpha(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, s...uggesting that they are predominantly responsible for Zn loss and the lower corrosive stability of the Au-Pt II alloy.
TY - JOUR
AU - Rudolf, Rebeka
AU - Anžel, Ivan
AU - Gusel, L.
AU - Stamenković, D.
AU - Todorović, A.
AU - Čolić, Miodrag
PY - 2010
UR - https://smile.stomf.bg.ac.rs/handle/123456789/1579
AB - 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 alloys' 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 phases' 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 alpha(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.
PB - Korean Inst Metals Materials, Seoul
T2 - Metals & Materials International
T1 - Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium
VL - 16
IS - 6
SP - 931
EP - 940
DO - 10.1007/s12540-010-1211-4
ER -
@article{
author = "Rudolf, Rebeka and Anžel, Ivan and Gusel, L. and Stamenković, D. and Todorović, A. and Čolić, Miodrag",
year = "2010",
abstract = "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 alloys' 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 phases' 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 alpha(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.",
publisher = "Korean Inst Metals Materials, Seoul",
journal = "Metals & Materials International",
title = "Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium",
volume = "16",
number = "6",
pages = "931-940",
doi = "10.1007/s12540-010-1211-4"
}
Rudolf, R., Anžel, I., Gusel, L., Stamenković, D., Todorović, A.,& Čolić, M.. (2010). Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium. in Metals & Materials International
Korean Inst Metals Materials, Seoul., 16(6), 931-940.
https://doi.org/10.1007/s12540-010-1211-4
Rudolf R, Anžel I, Gusel L, Stamenković D, Todorović A, Čolić M. Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium. in Metals & Materials International. 2010;16(6):931-940.
doi:10.1007/s12540-010-1211-4 .
Rudolf, Rebeka, Anžel, Ivan, Gusel, L., Stamenković, D., Todorović, A., Čolić, Miodrag, "Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium" in Metals & Materials International, 16, no. 6 (2010):931-940,
https://doi.org/10.1007/s12540-010-1211-4 . .
