Mechanical properties and microstructure characterisation of Au-Pt dental alloy
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...
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| Format: | Article |
| Language: | English |
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Croatian Metallurgical Society
2008-10-01
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| Series: | Metalurgija |
| Subjects: | |
| Online Access: | http://public.carnet.hr/metalurg/Metalurgija/2008_vol_47/No_4/MET_47_4_317_323_Rudolf.pdf |
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| author | R. Rudolf T. Zupančič Hartner L. Kosec A. Todorović B. Kosec I. Anžel |
| author_facet | R. Rudolf T. Zupančič Hartner L. Kosec A. Todorović B. Kosec I. Anžel |
| author_sort | R. Rudolf |
| collection | DOAJ |
| description | 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: _1-phase rich in Au (main phase) and _2-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the _1-phase content is about 98,5 wt.% while the content of _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. |
| first_indexed | 2024-04-12T05:40:29Z |
| format | Article |
| id | doaj.art-f25eb7c5bc494c198ba5df7bceed834d |
| institution | Directory Open Access Journal |
| issn | 0543-5846 1334-2576 |
| language | English |
| last_indexed | 2024-04-12T05:40:29Z |
| publishDate | 2008-10-01 |
| publisher | Croatian Metallurgical Society |
| record_format | Article |
| series | Metalurgija |
| spelling | doaj.art-f25eb7c5bc494c198ba5df7bceed834d2022-12-22T03:45:40ZengCroatian Metallurgical SocietyMetalurgija0543-58461334-25762008-10-01474317323Mechanical properties and microstructure characterisation of Au-Pt dental alloyR. RudolfT. Zupančič HartnerL. KosecA. TodorovićB. KosecI. AnželDevelopment 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: _1-phase rich in Au (main phase) and _2-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the _1-phase content is about 98,5 wt.% while the content of _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.http://public.carnet.hr/metalurg/Metalurgija/2008_vol_47/No_4/MET_47_4_317_323_Rudolf.pdfAu dental alloycharacterisationmicrostructureproperties |
| spellingShingle | R. Rudolf T. Zupančič Hartner L. Kosec A. Todorović B. Kosec I. Anžel Mechanical properties and microstructure characterisation of Au-Pt dental alloy Metalurgija Au dental alloy characterisation microstructure properties |
| title | Mechanical properties and microstructure characterisation of Au-Pt dental alloy |
| title_full | Mechanical properties and microstructure characterisation of Au-Pt dental alloy |
| title_fullStr | Mechanical properties and microstructure characterisation of Au-Pt dental alloy |
| title_full_unstemmed | Mechanical properties and microstructure characterisation of Au-Pt dental alloy |
| title_short | Mechanical properties and microstructure characterisation of Au-Pt dental alloy |
| title_sort | mechanical properties and microstructure characterisation of au pt dental alloy |
| topic | Au dental alloy characterisation microstructure properties |
| url | http://public.carnet.hr/metalurg/Metalurgija/2008_vol_47/No_4/MET_47_4_317_323_Rudolf.pdf |
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