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Phase transformation of inviscid melt spun (IMS) alumina-zirconia eutectic fibres

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Abstract

Al2O3-ZrO2 (AZ) eutectic fibres containing 41.05 wt% ZrO2 and 2.03 wt% Y2O3 were produced via inviscid melt spinning (IMS). Scanning electron microscopy (SEM) was used to examine the morphology of the as-spun AZ fibre. Differential thermal analysis (DTA) and X-ray diffraction (XRD) were used to investigate the phase transformations in this fibre. The XRD pattern of the as-spun AZ fibre showed tetragonal ZrO2, α-Al2O3, and non-equilibrium δ-Al2O3 phase formation. The DTA curve of the as-spun AZ fibre showed only one endothermic peak representing the phase transformation of δ-Al2O3 to α-Al2O3. This phase transformation was confirmed by analysing the XRD pattern of heat-treated AZ fibre.

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Authors and Affiliations

  1. Department of Materials Engineering, Rensselaer Polytechnic Institute, 12180, Troy, New York, USA

    Yun -Mo Sung

  2. Department of Chemical Engineering, University of Wisconsin, 53706, Madison, Wisconsin, USA

    S. A. Dunn & J. A. Koutsky

  3. Materials Science Program, University of Wisconsin, 53706, Madison, Wisconsin, USA

    J. A. Koutsky

Authors
  1. Yun -Mo Sung
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  2. S. A. Dunn
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  3. J. A. Koutsky
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Sung, Y.M., Dunn, S.A. & Koutsky, J.A. Phase transformation of inviscid melt spun (IMS) alumina-zirconia eutectic fibres. J Mater Sci 30, 5995–5998 (1995). https://doi.org/10.1007/BF01151518

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  • DOI: https://doi.org/10.1007/BF01151518

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