Chemical Engineering / Kimya Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/14

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Institution Author: search.filters.institutionAuthor.Topuz, BernaSubject: search.filters.subject.Polymers

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  • Article
    Citation - WoS: 2
    Citation - Scopus: 3
    Preparation and Characterization of Diphasic Sol-Gel Derived Unsupported Mullite Membranes
    (Springer Verlag, 2011) Topuz, Berna; Çiftçioglu, Muhsin
    Diphasic gels prepared by mixing freshly prepared polymeric silica and polymeric boehmite sols through a modified Al-alkoxide route in mullite compositions led to the crystallization of mullite upon heat treatment at 775°C. Mullite formation was observed at a 100°C higher temperature when diphasic gels were formed by mixing aged polymeric sols containing about 2 nm in diameter boehmite species. These relatively low mullite formation temperatures were attributed to the nanoscale sizes of the polymeric species of the two amorphous phases present in the diphasic gels.