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Examination of the high-temperature (850° C) oxidation of an Ni-Si-B powder

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Abstract

An air-fired (850° C) alloy powder of Ni-Si-B has been prepared to test its suitability in silk screen conductor applications. The silicon and boron were included because, when alloyed with nickel, they greatly impede the oxidation of the latter, removing the necessity for inert gas firing. The physical aspects of this novel material have been examined by SEM, while its chemical nature was studied by ESCA. It was found that during airfiring the alloy powder forms a glass around the conductive metal particles impeding the oxidation of nickel. Preferential migration of boron and silicon to the surface of the powder is indicated. Speculations are presented for the conductive pathway for this material.

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Authors and Affiliations

  1. UOP Inc. Des Plaines, 60016, Illinois, USA

    Steven A. Bradley, Tery L. Barr & Karl J. Youtsey

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  1. Steven A. Bradley
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  2. Tery L. Barr
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  3. Karl J. Youtsey
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Bradley, S.A., Barr, T.L. & Youtsey, K.J. Examination of the high-temperature (850° C) oxidation of an Ni-Si-B powder. J Mater Sci 14, 2317–2324 (1979). https://doi.org/10.1007/BF00737020

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  • DOI: https://doi.org/10.1007/BF00737020

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