Vladimir Fokin | institute of silicate chemistry of Russian - Russia

• Grant number: 01/03167-6
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: June 27, 2001
• End date: April 26, 2002
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Edgar Dutra Zanotto
• Grantee: Edgar Dutra Zanotto
• Visiting researcher: Vladimir Fokin
• Visiting researcher institution: Russian Academy of Sciences (RAS), Russia
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 99/00871-2 - Current issues on glass crystalization, AP.TEM

Abstract

We propose a detailed study of current problems concerning crystal nucleation in glasses, which are of both practical and theoretical interest: The main, but not exclusive, topic of study will be: - The knowledge of the magnitude of the nucleation rate maximum, lmax= l(Tmax), and its position, Tmax, are needed to choose the optimal temperature regime for glass-ceramics production. Therefore, we propose to investigate, from a fundamental point of view, the correlation between these parameters and the reduced glass transition temperature, Trg, for several glass forming systems, in the framework of the classical nucleation theory, using our own and literature data. (AU)