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Continuous alumina gel fibres were prepared by sol-gel method. The spinning sol was prepared by mixing aluminum nitrate, lactic acid and polyvinylpyrrolidone with a mass ratio of 10:3:1•5. Thermogravimetrydifferential scanning calorimetry (TG-DSC), Fourier transform infrared (FTIR) spectra, X-ray diffraction (XRD), and scanning electron microscopy (SEM) were used to characterize the properties of the gel and ceramic fibres. The Al 2 O 3 fibres with a uniform diameter can be obtained by sintering gel fibres at 1200 • C. Keywords. Continuous gel fibre; sol-gel method; Al 2 O 3 ; polyvinylpyrrolidone.

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