Microstructural study of tungsten influence on Co-Cr alloys
Identifieur interne : 000943 ( Main/Exploration ); précédent : 000942; suivant : 000944Microstructural study of tungsten influence on Co-Cr alloys
Auteurs : A. Karaali [Algérie] ; K. Mirouh [Algérie] ; S. Hamamda [Algérie] ; P. Guiraldenq [France]Source :
- Materials science & engineering. A, Structural materials : properties, microstructure and processing [ 0921-5093 ] ; 2005.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Alloying elements, such as W, Mo, Mn, ..., are of a great importance in the preoxidation of dental alloys and, consequently, on the ceramic/metal bond quality. This study deals with the effect of tungsten addition on the microstructural state of Co-Cr dental alloys, before the ceramisation process. These materials were prepared by unidirectional solidification. Their characterization has been carried out, using transmission electron microscopy (TEM) and X-ray diffraction. It shows that the addition of tungsten up to 8 wt.% induces structural transformations, which are believed to be linked to the added amount of tungsten.
Affiliations:
Links toward previous steps (curation, corpus...)
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- to stream PascalFrancis, to step Curation: 000099
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- to stream Main, to step Merge: 000954
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Le document en format XML
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<term>Dental alloy</term>
<term>Directional solidification</term>
<term>Microstructure</term>
<term>Phase transformations</term>
<term>Stacking faults</term>
<term>Transmission electron microscopy</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Microstructure</term>
<term>Elément alliage</term>
<term>Solidification dirigée</term>
<term>Microscopie électronique transmission</term>
<term>Transformation phase</term>
<term>Défaut empilement</term>
<term>Cobalt alliage</term>
<term>Chrome alliage</term>
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<front><div type="abstract" xml:lang="en">Alloying elements, such as W, Mo, Mn, ..., are of a great importance in the preoxidation of dental alloys and, consequently, on the ceramic/metal bond quality. This study deals with the effect of tungsten addition on the microstructural state of Co-Cr dental alloys, before the ceramisation process. These materials were prepared by unidirectional solidification. Their characterization has been carried out, using transmission electron microscopy (TEM) and X-ray diffraction. It shows that the addition of tungsten up to 8 wt.% induces structural transformations, which are believed to be linked to the added amount of tungsten.</div>
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