Numerical simulations of the effect of composition and relaxation on crystal nucleation in supercooled glass-forming liquids

• Grant number: 19/02396-5
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: April 30, 2019
• End date: July 29, 2019
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Edgar Dutra Zanotto
• Grantee: Edgar Dutra Zanotto
• Visiting researcher: Alexander Abyzov
• Visiting researcher institution: Kharkov Institute of Physics and Technology (KIPT), Ukraine
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass, AP.CEPID

Abstract

This project is focused on detailed numerical simulations of the effect of composition and relaxation process on the nucleation of crystalline phases in supercooled glass-forming liquids. The parameters of the crystallization process - the distribution function of the number of crystals per unit volume, N(t) curves, steady-state nucleation rates and time-lags - will be simulated and compared with experimental data for crystallization of silicate glasses at different heat treatment scenarios, which are being performed at LaMaV-UFSCar and USP - Universidade de São Paulo. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SCHMELZER, JURN W. P.; TROPIN, V, TIMUR; FOKIN, VLADIMIR M.; ABYZOV, ALEXANDER S.; ZANOTTO, EDGAR D.. Effects of Glass Transition and Structural Relaxation on Crystal Nucleation: Theoretical Description and Model Analysis. Entropy, v. 22, n. 10, OCT 2020. (13/07793-6, 19/02396-5)

FOKIN, VLADIMIR M.; ABYZOV, ALEXANDER S.; RODRIGUES, ALISSON M.; POMPERMAYER, ROGERIO Z.; MACENA, GUILHERME S.; ZANOTTO, EDGAR D.; FERREIRA, EDUARDO B.. Effect of non-stoichiometry on the crystal nucleation and growth in oxide glasses. ACTA MATERIALIA, v. 180, p. 317-328, NOV 2019. (19/02396-5, 13/07793-6)

ABYZOV, ALEXANDER S.; SCHMELZER, JUERN W. P.; FOKIN, VLADIMIR M.; ZANOTTO, EDGAR D.. Crystallization of Supercooled Liquids: Self-Consistency Correction of the Steady-State Nucleation Rate. Entropy, v. 22, n. 5, MAY 2020. (19/02396-5, 13/07793-6)

MACENA, GUILHERME S.; ABYZOV, ALEXANDER S.; FOKIN, VLADIMIR M.; ZANOTTO, EDGAR D.; FERREIRA, EDUARDO B.. Off-stoichiometry effects on crystal nucleation and growth kinetics in soda-lime-silicate glasses. The combeite (Na2O center dot 2CaO center dot 3SiO(2)) - devitrite (Na2O center dot 3CaO center dot 6SiO(2)) joint. ACTA MATERIALIA, v. 196, p. 191-199, SEP 1 2020. (19/02396-5, 13/07793-6)