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Aluminium nitride coatings on silicon carbide fibres, prepared by pyrolysis of a polymeric precursor

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Abstract

Metallic aluminium was anodically dissolved in an organic electrolyte. A viscous solution, containing a polyiminoalane precursor was obtained. Nicalon (SiC) fibres were thermally pretreated and then coated with this fluid. The coated fibres were dried and calcined at 900 ° C in anhydrous ammonia. Thermal pretreatment of the fibres in nitrogen at 1400 ° C and dip coating with solutions of relatively low aluminium concentrations resulted in dense, nearly uncracked aluminium nitride layers.

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Teusel, I., Rüssel, C. Aluminium nitride coatings on silicon carbide fibres, prepared by pyrolysis of a polymeric precursor. J Mater Sci 25, 3531–3534 (1990). https://doi.org/10.1007/BF00575383

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  • DOI: https://doi.org/10.1007/BF00575383

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