%0 Journal Article
%T Continuous alumina gel fibers by sol-gel method using glycolic acid, aluminum nitrate and polyvinylpyrrolidone
%A Hongbin Tan
%A Jianhua Zhang
%A Haiwa Bo
%J Ceramics-Silik¨˘ty
%D 2011
%I Academy of Sciences of the Czech Republic
%X Continuous alumina fibers were prepared by sol-gel method. The spinning sol was obtained by mixing aluminum nitrate, glycolic acid and polyvinylpyrrolidone with a weight ratio of 10:3:1.5. 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 fibers. The fibers with a uniform diameter and smooth surface were obtained by sintering at 1473K, and its main phase was indentified as a-Al2O3.
%K Alumina fibers
%K Sol¨Cgel method
%K Glycolic acid
%K Polyvinylpyrrolidone
%U http://www.ceramics-silikaty.cz/2011/pdf/2011_03_276.pdf