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Issue
Korean Journal of Chemical Engineering,
Vol.16, No.1, 75-81, 1999
PREPARATION OF ALUMINA FIBERS FROM ALUMINUM SALTS BY THE SOL-GEL METHOD
Song KC, Woo KJ, Kang Y
Alumina fibers were synthesized from two different systems, AlCl3-Al powder-H2O and Al(NO3)3-Al powder-H2O, by the sol-gel method. For the former system, gel fibers were obtained from solutions in a composition range of Al powder/AlCl3 molar ratios of 2 to 5. For the latter system, the spinnable range was narrower compared to the aluminum chloride system. The thermogravimetry analysis (TGA) curve of the aluminum chloride system showed a weight loss up to 700℃, while the TGA curve of the aluminum nictate system showed no weight loss above 400℃, which indicates that thermal decomposition of Cl- is more difficult than that of NO3-.
Keywords: Alumina Fibers; Sol-Gel Method; Aluminum Salts; Spinnability
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[Cited By]
  1. Pansanga K, Mekasuwandumrong O, Panpranot J, Praserthdam P, Korean Journal of Chemical Engineering, 24(3), 397, 2007
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