- 유기용매의 사용없이 알콕사이드로부터 코디어라이트 분말제조
- ㆍ 저자명
- 류수착,김호룡,김겸,박희찬
- ㆍ 간행물명
- 요업학회지
- ㆍ 권/호정보
- 1994년|31권 3호|pp.291-297 (7 pages)
- ㆍ 발행정보
- 한국세라믹학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Cordierite powders were prepared by controlled hydrolysis of metal alkoxides with catalysts in water medium without using organic solvents. Water was adjusted to a certain pH by HC1 and NH4OH. $alpha$-Cordierite powder was prepared from aluminum isopropoxide, tetraethyl orthosilicate and magnesium ethoxide mixed with water adjusted to pH of 3. At water pH of 11, $alpha$-cordierite, mullite and $eta$-quartz phases were coexisted. The powders were freeze dried, calcined and then fired at different temperatures. The characteristics of powders were examined by means of DTA, X-ray diffraction, FT-IR, and electron microscopy. It was found that $alpha$-cordierite could be synthesized at temperature of 120$0^{circ}C$ from the powders prepared by alkoxides with water medium without organic solvents.