Inviscid melt-spun high-temperature alumina-magnesia fibres |
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| Authors: | Yun -Mo Sung Stanley A. Dunn |
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| Affiliation: | (1) Department of Materials Science and Engineering, University of Wisconsin, 53706 Madison, Wisconsin, USA;(2) Present address: Department of Chemical Engineering, University of Wisconsin, 53706 Madison, Wisconsin, USA;(3) Department of Materials Science and Engineering, Pochun-kun, 487-800 Kyungki-do, Korea |
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| Abstract: | Al2O3-MgO (AM) fibres containing 98.16 wt% Al2O3 and 1.84 wt% MgO, were produced via inviscid melt spinning. By using scanning electron microscopy it was found that the as-spun AM fibres were hollow and their surfaces were very rough. The X-ray diffraction pattern of the as-spun AM fibre showed  -Al2O3 as a major phase and  -Al2O3 as a minor phase. The DTA curve of the as-spun AM fibre showed a single endothermic peak representing the phase transformation of -Al2O3 to -Al2O3. This phase transformation was readily confirmed by analysing the X-ray diffraction pattern of heat-treated AM fibres. |
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