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The strength of ceramics bonded with metals

✍ Scribed by B.J Dalgleish; M.C Lu; A.G Evans


Publisher
Elsevier Science
Year
1988
Weight
738 KB
Volume
36
Category
Article
ISSN
0001-6160

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✦ Synopsis


The strength of AI203 materials bonded using thin Pt layers is investigated. The measured strength levels are interpreted by conducting elastic/plastic stress analysis in conjunction with weakest link statistics. Comparisons between theory and experiment includes bond thickness effects, coupled with the role of interracial flaws and the flow stress of the Pt.Rfsumf---Nous 6tudions la rfsistance mfcanique de matfriaux A1203 lifs d l'aide de couches minces de platine. Nous interprftons les valeurs expfrimentales de la rfsistance mfcanique grace ~i une analyse des contraintes 61astiques et plastiques menfe conjointeraent avec une statistique des liaisons les plus faibles. La comparaison entre la thforie et l'experience tient compte des effets d'fpaisseur de liant ainsi que du rfle des dffauts ~ 1'interface et de la contrainte d'fcoulement du platine.Zusammenfassung--Die Festigkeit von Materialien aus A1203, verbunden mit dfinnen Pt-Schichten, wird untersucht. Die gemessenen Festigkeitswerte werden mit einer Analyse der elastisch/plastischen Spannungen in Zusammenhang mit Statistiken der schwachsten Verbindung gedeutet. Vergieich zwischen Theorie und Experiment nmfaBt Einflfisse tier Dicke der Verbindungen, einschliel31ich der Relic yon unverbundenen Bereichen an der Grenzfl~che und tier Flie~pannung des Platins.


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