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Sol-gel법에 의한 방사성 aluminum sol의 합성과 섬유제조
Preparation of Alumina Fibers from Spinnable Alumina Sols Prepared by the Sol-Gel Process
HWAHAK KONGHAK, February 1997, 35(1), 35-40(6)
https://doi.org/NONE
https://doi.org/NONE
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Abstract
AlCl3-Al powder-H2O계 용액을 출발물질로 하여 Sol-Gel법에 의해 alumina섬유를 제조하였다. Alumina sol의 방사성은 Al분말의 용해량에 의해 결정되며, Al powder/AlCl3 몰비가 3에서 5인 점성용액으로부터 겔섬유를 얻을 수 있었다. 이때 점성용액으로부터의 섬유의 인상은 350-3000p의 고점도 영역에서 가능하였다. 이렇게 얻어진 겔섬유를 1000℃에서 2시간 동안 열처리함에 의해 α-Al2O3 섬유를 제조할 수 있었다.
Alumina fibers were prepared by the sol-gel process from AlCl3-Al powder-H2O solution as a starting material. The spinnability of alumina sols was determined by the dissolved content of aluminum powders and gel fibers could be obtained from viscous solutions in a composition range of Al powder/AlCl3 molar ratios of 3 to 5. Fiber drawing from the viscous solutions was possible in a high viscosity range of 350-3000p. α-Al2O3 fibers were formed by calcination of the gel fibers at 1000℃ for 2hr
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Klein IC, "Sol-Gel Technology for Thin Films, Fibers, Preforms and Spceciality Shapes," Noyes Publications, Park Ridge, New Jersey (1988)
Dhingra AK, Phil. Trans. R. Soc. Lond., A294, 411 (1980)
Cooke TF, J. Am. Ceram. Soc., 74, 2959 (1991)
Horikiri S, Ceramics, 19, 194 (1984)
Blomquist RA, Am. Ceram. Soc. Bull., 57, 552 (1978)
Hench LL, Ulrich DR, "Ultrastructure Processing of Ceramics, Glasses and Composites," Wiley-Interscience, New York (1984)
Yogo T, Iwahara H, J. Mater. Sci., 26, 5292 (1991)
Horikiri S, Abe Y, Tachikawa N, Japan Patent, 7655429 (1976)
Baes C, Mesmer R, "The Hydrolysis of Cations," John Wiley & Sons, New York (1976)
Gimblett FGR, "Inorganic Polymer Chemistry," Pitman Press, England (1963)
Maki T, Sakka S, J. Non-Cryst. Solids, 100, 303 (1988)
Song KC, Chung IJ, HWAHAK KONGHAK, 33(3), 292 (1995)
Sakka S, Kamiya K, J. Non-Cryst. Solids, 48, 31 (1982)
Song KC, Chung IJ, J. Non-Cryst. Solids, 107, 193 (1989)
Nishio T, Fujiki Y, 일본세라믹스협회 학술논문집, 98, 1223 (1990)
wILSON sj, J. Sol. sTAT. cHEM., 30, 247 (1976)
Kim GD, Lee HI, Yoon SJ, Mater. Sci. Eng., A167, 171 (1993)
Gadsden JA, "Infrared Spectra of Minerals and Related Inorganic Compounds," Butterworths Reading, Mass (1975)
Frederickson ID, Anal. Chem., 26(12), 1883 (1954)
Mehrota RC, Bajas P, J. Org. Chem., 24, 611 (1970)
Sacks MD, Tseng TY, Lee SY, Ceram. Bull., 63(2), 301 (1984)
