Hong-bin Tan, Preparation of long alumina fibers by sol-gel method using tartaric acid, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 691-694. https://doi.org/10.1007/s12613-011-0498-6
Cite this article as:
Hong-bin Tan, Preparation of long alumina fibers by sol-gel method using tartaric acid, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 691-694. https://doi.org/10.1007/s12613-011-0498-6
Hong-bin Tan, Preparation of long alumina fibers by sol-gel method using tartaric acid, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 691-694. https://doi.org/10.1007/s12613-011-0498-6
Citation:
Hong-bin Tan, Preparation of long alumina fibers by sol-gel method using tartaric acid, Int. J. Miner. Metall. Mater., 18(2011), No. 6, pp. 691-694. https://doi.org/10.1007/s12613-011-0498-6
Long alumina fibers were prepared by sol-gel method. The spinning sol was obtained by mixing aluminum nitrate, tartaric acid, and polyvinylpyrrolidone with a mass ratio of 10:3:1.5. Thermogravimetry-differential scanning calorimetry (TG-DSC), Fourier transform infrared (FT-IR) spectra, X-ray diffraction (XRD), and scanning electron microscopy (SEM) were used to characterize the properties of the gel and ceramic fibers. A little of α-Al2O3 phase is observed in the alumina precursor gel fibers sintered at 1273 K. The fibers with a uniform diameter can be obtained when sintered at 1473 K, and its main phase is also indentified as α-Al2O3.
Long alumina fibers were prepared by sol-gel method. The spinning sol was obtained by mixing aluminum nitrate, tartaric acid, and polyvinylpyrrolidone with a mass ratio of 10:3:1.5. Thermogravimetry-differential scanning calorimetry (TG-DSC), Fourier transform infrared (FT-IR) spectra, X-ray diffraction (XRD), and scanning electron microscopy (SEM) were used to characterize the properties of the gel and ceramic fibers. A little of α-Al2O3 phase is observed in the alumina precursor gel fibers sintered at 1273 K. The fibers with a uniform diameter can be obtained when sintered at 1473 K, and its main phase is also indentified as α-Al2O3.
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