Preparation of the Fine Alumina Powder from the Synthisized Aluminum-Sec-Butoxide by the Alkoxide Sol-Gel Process

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J. Korean Ceram. Soc. > Volume 25(6); 1988 > Article

Journal of the Korean Ceramic Society 1988;25(6): 585.

합성한 Aluminum Sec-Butoxide로부터 알콕사이드졸겔법에 의한 알루미나 미분말의 제조

김창은, 이해욱, 정형진¹, 김구대¹, 박노경¹

연세대학교 공과대학 요업공학과
¹한국과학기술원 무기재료연구실

Preparation of the Fine Alumina Powder from the Synthisized Aluminum-Sec-Butoxide by the Alkoxide Sol-Gel Process

ABSTRACT

Aluminum sec-butoxide was synthesized from aluminum foil and alcohol. The characteristics of the alumina powder prepared from the synthesized alkoxide by the Yoldas method were studied. As a result of measuring the synthesized aluminum sec-butoxide by GC, the purity of the synthesized alkoxide was 98.7% on the basis of commercial alkoxide and the yield was 78.5%. A127-MASNMR analysis shows that powders dried at 9$0^{circ}C$ and $alpha$-Al2O3 have 6-cordinated structure and ${gamma}$-Al2O3 has 4-coordinated structure. The characteristics of alumina powder prepared from the synthisized alkoxide showed the same characteristics with the alumina powder prepared from the commercial alkoxide.