graduation at Engenharia de Materiais from Universidade Federal de São Carlos (1976), master's at Física from Fisica Usp São Carlos (1979) and doctorate at Ceramics Glasses And Polymers from The University Of Sheffield (1982). Has experience in Material and Metallurgical Engineering, focusing on Ceramics, acting on the following subjects: vidro, cristalizacao, nucleation, glass and viscosidade. (Source: Lattes Curriculum)
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This project is focused on a detailed analysis of the nucleation and growth of crystalline phases in glass or a supercooled glass-forming liquid. The parameters of the relaxation and crystallization processes - the distribution function of nuclei, R(t)- and N(t)-curves - will be simulated and compared with experimental data for crystallization of a barium disilicate glass (BaO·2SiO2) at a…
Through fundamental research on structure-property relations, using complementary simulation, spectroscopic and functional characterization methods, we will map the "genome" and develop new active glasses and glass-ceramics with promising applications. For that, the core group of the Center will comprise 13 professors at USP and UFSCar (both located in São Carlos) who are experts in engin…
Through fundamental research on structure-property relations, using complementary simulation, spectroscopic and functional characterization methods, we will map the "genome" and develop new active glasses and glass-ceramics with promising applications. For that, the core group of the Center will comprise 13 professors at USP and UFSCar (both located in São Carlos) who are experts in engin…
(Only some records are available in English at this moment)
This project is focused on detailed numerical simulations of the effect of step-wise relaxation process on the nucleation of crystalline phases in glass or a supercooled glass-forming liquid. The parameters of the relaxation and crystallization processes - number and duration of relaxation steps, the distribution function of the number of crystals per unit volume, N(t) curves, partial ste…
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 compa…
This project aims at exploring heating rate effects in crystal nucleation of glasses. Experiments are proposed in which defined heating rates will be used. Crystal number densities, nucleation rates and final microstructure of glass-ceramics resulting from these heat treatments will be measured. A systematic change in the heating rate allows for a correlation between these parameters from…
(Only some records are available in English at this moment)
Materials in the glassy state are not in thermodynamic equilibrium and, therefore, spontaneously relax toward the supercooled liquid state. Understanding the mechanisms of structural relaxation is of great scientific and technological importance, with the potential to develop glasses with unique properties and achieve significant advances in materials science and engineering. In this rese…
The addition of niobium as a mixed glass former can lead to unique properties and significant advances in materials science, and is of great relevance for understanding and predicting the behavior of glassy materials. This scientific initiation project aims to characterize and analyze the properties of lithium phosphate glasses that incorporate niobium in their composition, in order to in…
The fluoride containing bioactive glass F3 with nominal composition 44.8 SiO2 - 2.5 P2O3 - 36.5 CaO - 6.6 Na2O - 6.6 K2O - 3.0 CaF2 mol% is a highly promising candidate as bone replacement material. However, its strong surface crystallization tendency, which retard or block viscous flow sintering, demands a thorough understanding on the crystal nucleation and growth mechanisms to prevent …
In this project we intend to: 1) to use a computer code that combines several data-driven predictiveMachine Learning models (Random Forest, Artificial Neural Networks and others using stackedgeneralization) coupled with a Genetic Algorithm to design novel oxide glass formulations havingdesired thermal expansion coefficient. The computer code will employ combinations of elementproperties t…
In this project we intend to: 1) develop a computer code that combines several data-driven predictive Machine Learning models (Random Forest, Artificial Neural Networks and others using stackedgeneralization) coupled with a Genetic Algorithm to design oxide glass formulations having desired combinations of physical-chemical properties (such as, glass transition temperature, thermal expans…
(Only some records are available in English at this moment)
This project aims to evaluate the Jiusti-Zanotto-Cassar-Andreeta (JZCA) model for glass-forming ability (GFA) and to test the hypothesis that glasses with low viscosity at the liquidus temperature may still exhibit good GFA if their liquidus temperature is also low. We have combined the SciGlass® and Interglad® databases to identify glasses with both low liquidus temperature and low visco…
Glasses are thermodynamically unstable materials. Hence, they spontaneously relax towards the supercooled liquid state. The structural relaxation process is an irreversible, time-dependent phenomenon, which may be experimentally detected by measuring some property over time at temperatures close to the laboratory glass transition. Even though the kinetics of the structural relaxation proc…
The large increase in interest in aesthetic and functional oral aspects has led many people to switch from metal or metal alloys coated with porcelain to fixed ceramic prostheses. As a consequence, there has been a substantial increase in worldwide research involving dental materials in the past few years. In this scenario, a promising candidate for those applications is glass-ceramic pro…
The present project addresses the conduct of a research internship in the Institut für Physikalische Chemie, Westfälische Wilhelms - Universität, in Münster, Germany, through the program BEPE - Postdoctoral for a period of 03 months. The aim of this project is the structural characterization of 4 borate glasses and their respective isochemical crystals - using high resolution Solid State …
(Only some records are available in English at this moment)
| 4 / 4 | Ongoing grants |
| 30 / 20 | Completed research grants |
| 2 / 2 | Ongoing scholarships in Brazil |
| 58 / 46 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 5 / 5 | Completed scholarships abroad |
| 100 / 78 | All research grants and scholarships |
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CV Lattes
ORCID