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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pischedda, V.
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Topics
Publications (7/7 displayed)
- 2023Structural transitions at high pressure and metastable phase in Si0.8Ge0.2
- 2018Fluorine-graphite intercalation compound (C 4 F) n at high pressure: Experimental and theoretical studycitations
- 2016Further study of the cation ordering in phengite 3T by neutron powder diffractioncitations
- 2011Interface Energy Impact on Phase Transitions: The Case of TiO2 Nanoparticlescitations
- 2009High temperature study on thin aluminium coatings deposited onto thick platinum substratescitations
- 2001M1-site occupancy in 3T and 2M1 phengites by low temperature neutron powder diffraction: reality or artefact?citations
- 2000Further study of the cation ordering in phengite 3T by neutron powder diffraction
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article
High temperature study on thin aluminium coatings deposited onto thick platinum substrates
Abstract
<p>Intermetallics formation in the Pt-Al binary system at temperatures in the range of 20-600 °C have been investigated by the study of thin aluminium coatings deposited on thick platinum substrates. In order to characterise the changes caused by elevated temperature several techniques such as microscopy, X-ray diffraction, nuclear microprobe techniques and microhardness testing were used. In addition to changes in morphology, the high temperature X-ray diffraction (XRD) analysis showed that the initial phase formed when Pt and Al reacted was Pt<sub>2</sub>Al<sub>3</sub>. The formation of Pt<sub>2</sub>Al<sub>3</sub> phase started at 250 °C and it is followed by the PtAl and Pt<sub>3</sub>Al phases. Furthermore, the Pt-Al intermetallics increased the surface hardness; the process of surface hardening by formation of intermetallics without compromising the purity of pure platinum is of great importance for jewellery and other applications where the properties such as hardness and scratch resistance are crucial.</p>