XRD and TG-DSC analysis of the silicon carbide-palladium reaction

Marialuisa Gentile

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The attack of palladium on silicon carbide was investigated using high purity powders of α-SiC and palladium blended to produce a mixture with composition of 95 at.% SiC and 5 at.% Pd and cold pressed to pellets. The palladium silicon carbide reaction was studied by thermogravimetry (TG) and differential scanning calorimentry (DSC), whereas the phase composition of the specimens was studied using X-ray diffractometry (XRD) before and after thermoscans. X-ray powder analysis (XRD) was employed in combination with Rietveld method for a quantitative phase analysis. Thermoscans of α-SiC-5at. %Pd pellet present three exothermic peaks at 773 K, 1144 K and 1615 K that indicate the presence of three reaction stages. XRD patterns of α-SiC-5at. %Pd pellets show the presence of PdxSi phase that developed after the thermal treatment. This work provides a better understanding the palladium-silicon carbide reaction mechanism, in particular analyses the interaction between palladium and alpha silicon carbide
    Original languageEnglish
    Title of host publicationDevelopments in Strategic Materials and Computational Design IV
    Place of PublicationCeramics Engineering and Science Proceedings
    PublisherAmerican Ceramic Society
    Number of pages9
    Volume34
    Publication statusPublished - 2014
    Event37th International Conference on Advanced Ceramics and Composites - Daytona Beach
    Duration: 27 Jan 20131 Feb 2013

    Publication series

    NameDevelopments in Strategic Materials and Computational Design IV
    PublisherAmerican Ceramic Society

    Conference

    Conference37th International Conference on Advanced Ceramics and Composites
    CityDaytona Beach
    Period27/01/131/02/13

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