The wetting of silicon nitride by chromium-containing alloys

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    The wetting of ceramic materials by metallic melts is the most important characteristic of brazing alloys. The effect of chromium additions to copper-base alloys on the wetting of silicon nitride was investigated. Wetting experiments were carried out on Si3N4 using liquid Cu-Cr, Cu-Ni-Cr, Cu-Si-Cr and Cu-Ni-Si-Cr alloys. The addition of chromium to liquid copper up to its solubility limit promoted wetting on Si3N4. Improved wetting with a higher chromium content was achieved by the addition of nickel to the Cu-Cr alloys. The formation of an interfacial reaction layer, which is detrimental for brazing ceramics, was suppressed by the addition of silicon to the chromium-containing brazing alloys. © 1995 Chapman & Hall.
    Original languageEnglish
    Pages (from-to)5915-5922
    Number of pages7
    JournalJournal of Materials Science
    Issue number23
    Publication statusPublished - Dec 1995


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