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A study of the nature of solderless metal-ceramic bonds by reflectivity measurements

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Abstract

The bonding mechanism between surfaces of tantalum and sapphire, aluminium and sapphire as well as copper and sapphire, was studied using optical reflectivity measurements and electro-reflection. In the tantalum-sapphire system, a reaction layer could be detected, but no indication of such a layer could be found in the other systems. The bond strengths observed in these systems are related to free valency states in the surfaces of the oxides.

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Authors and Affiliations

  1. Pulvermetallurgisches Laboratorium, Institut für Sondermetalle, Max-Planck-Institut für Metallforschung, D-7000, Stuttgart 80, Germany

    G. Heidt

  2. Steinzeug- und Kunststoffwerke, Friedrichsfeld GmbH, D-6800, Mannheim 71, Germany

    G. Heimke

Authors
  1. G. Heidt
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  2. G. Heimke
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Heidt, G., Heimke, G. A study of the nature of solderless metal-ceramic bonds by reflectivity measurements. J Mater Sci 10, 887–895 (1975). https://doi.org/10.1007/BF01163083

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  • DOI: https://doi.org/10.1007/BF01163083

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