Mechanical properties and microstructure characterisation of Au-Pt dental alloy
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Development of a dental alloy with high Au content is based on the ternary system of Au-Pt-Zn with a nominal composition of 86,9Au-9,9Pt-1,5Zn, and about 1,5 wt.% micro-alloying elements (in, Ir, Rh). The results analyses of different heat-treated states showed that the optimal mechanical properties and hardness of an Au-Pt-Zn alloy can be reached with combinations of heat treatment for 20 minutes at 723 K and then slowly cooling, if the alloy was annealed at 1223 K for 30 minutes and the water quenched. Research results confirmed that the microstructure of the Au-Pt-Zn alloy consists of two phases: alpha(1)-phase rich in Au (main phase) and alpha(2)-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the alpha(1)-phase content is about 98,5 wt.% while the content of alpha(2)-phase is 1,5 wt.%. STA analyses show that the Au-Pt-Zn alloy has a solidus temperature of about 1292 K and a liquidus temperature of about 1412 K.
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Au dental alloy / characterisation / microstructure / propertiesSource:
Metalurgija, 2008, 47, 4, 317-323Publisher:
- Croatian Metallurgical Society
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Stomatološki fakultetTY - JOUR AU - Rudolf, Rebeka AU - Zupančič-Hartner, Tjaša AU - Kosec, L. AU - Todorović, A. AU - Kosec, Borut AU - Anžel, Ivan PY - 2008 UR - https://smile.stomf.bg.ac.rs/handle/123456789/1440 AB - Development of a dental alloy with high Au content is based on the ternary system of Au-Pt-Zn with a nominal composition of 86,9Au-9,9Pt-1,5Zn, and about 1,5 wt.% micro-alloying elements (in, Ir, Rh). The results analyses of different heat-treated states showed that the optimal mechanical properties and hardness of an Au-Pt-Zn alloy can be reached with combinations of heat treatment for 20 minutes at 723 K and then slowly cooling, if the alloy was annealed at 1223 K for 30 minutes and the water quenched. Research results confirmed that the microstructure of the Au-Pt-Zn alloy consists of two phases: alpha(1)-phase rich in Au (main phase) and alpha(2)-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the alpha(1)-phase content is about 98,5 wt.% while the content of alpha(2)-phase is 1,5 wt.%. STA analyses show that the Au-Pt-Zn alloy has a solidus temperature of about 1292 K and a liquidus temperature of about 1412 K. PB - Croatian Metallurgical Society T2 - Metalurgija T1 - Mechanical properties and microstructure characterisation of Au-Pt dental alloy VL - 47 IS - 4 SP - 317 EP - 323 UR - https://hdl.handle.net/21.15107/rcub_smile_1440 ER -
@article{ author = "Rudolf, Rebeka and Zupančič-Hartner, Tjaša and Kosec, L. and Todorović, A. and Kosec, Borut and Anžel, Ivan", year = "2008", abstract = "Development of a dental alloy with high Au content is based on the ternary system of Au-Pt-Zn with a nominal composition of 86,9Au-9,9Pt-1,5Zn, and about 1,5 wt.% micro-alloying elements (in, Ir, Rh). The results analyses of different heat-treated states showed that the optimal mechanical properties and hardness of an Au-Pt-Zn alloy can be reached with combinations of heat treatment for 20 minutes at 723 K and then slowly cooling, if the alloy was annealed at 1223 K for 30 minutes and the water quenched. Research results confirmed that the microstructure of the Au-Pt-Zn alloy consists of two phases: alpha(1)-phase rich in Au (main phase) and alpha(2)-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the alpha(1)-phase content is about 98,5 wt.% while the content of alpha(2)-phase is 1,5 wt.%. STA analyses show that the Au-Pt-Zn alloy has a solidus temperature of about 1292 K and a liquidus temperature of about 1412 K.", publisher = "Croatian Metallurgical Society", journal = "Metalurgija", title = "Mechanical properties and microstructure characterisation of Au-Pt dental alloy", volume = "47", number = "4", pages = "317-323", url = "https://hdl.handle.net/21.15107/rcub_smile_1440" }
Rudolf, R., Zupančič-Hartner, T., Kosec, L., Todorović, A., Kosec, B.,& Anžel, I.. (2008). Mechanical properties and microstructure characterisation of Au-Pt dental alloy. in Metalurgija Croatian Metallurgical Society., 47(4), 317-323. https://hdl.handle.net/21.15107/rcub_smile_1440
Rudolf R, Zupančič-Hartner T, Kosec L, Todorović A, Kosec B, Anžel I. Mechanical properties and microstructure characterisation of Au-Pt dental alloy. in Metalurgija. 2008;47(4):317-323. https://hdl.handle.net/21.15107/rcub_smile_1440 .
Rudolf, Rebeka, Zupančič-Hartner, Tjaša, Kosec, L., Todorović, A., Kosec, Borut, Anžel, Ivan, "Mechanical properties and microstructure characterisation of Au-Pt dental alloy" in Metalurgija, 47, no. 4 (2008):317-323, https://hdl.handle.net/21.15107/rcub_smile_1440 .