Universidade Federal de Itajubá - UNIFEI
Instituto de Engenharia Mecânica - IEM
Endereço: Av. BPS, 1303 - Pinheirinho - CEP: 37.500-903 - Itajubá/MG
Contato: Profa. Dra. Maria Virginia Gelfuso
Telefone: (35) 3629-1051 ou 3629-1027
E-mail: mvgelfuso@unifei.edu.br
1) Estudo e desenvolvimento de materiais para geração e armazenamento de energia elétrica
2) Formação de recursos humanos: iniciação científica, trabalho final de graduação, mestrado e doutorado
3) Prestação de serviços: caracterização de materiais
4) Realização de projetos de pesquisa, desenvolvimento e inovação (P&D+I)
TORRES, S.O.A. ; ROSA, J.P.M.M. ; BALTHAZAR, G.P. ; Thomazini, D. ; GELFUSO, M.V. . Microstructural evolution during sintering and thermoelectric characterization of La3+ and/or Nb5+ doped CaMnO3 perovskites. CERAMICS INTERNATIONAL, v. 51, p. 27350, 2025.
FERNANDES, T. C., GENNARI, R. C., GELFUSO, M.V., THOMAZINI, D., AYALA, A. P., EIRAS, J. A., LENTE, M. H.. Growth and characterization of physical properties of photovoltaic (K,Ba)(Ni,Nb)O3 single crystals. FERROELECTRICS, v. 618, p. 1246, 2024.
ROSA, J.P.M.M., TORRES, S.O.A., THOMAZINI, D., GELFUSO, M.V.. Microwave assisted sintering of La3+ and V5+ doped CaMnO3 perovskites for energy harvesting applications. Journal of Alloys and Compounds, v. 1004, p. 175809, 2024.
PETINARDI, G. M. ; THOMAZINI D. ; URIBE, J. O. M. ; GELFUSO, M. V. . Non-stoichiometry influence on dielectric properties of CaCu3Ti4O12 based ceramics. Materials Science and Engineering B-Advanced Functional Solid-State Materials, v. 300, p. 117095, 2024.
ROSA, J.P.M.M. ; TORRES, S.O.A. ; Thomazini, D. ; GELFUSO, M.V. . Microwave sintering of CaMnO3 thermoelectric perovskites synthesized by modified Pechini method. Materials Science and Engineering B-Advanced Functional Solid-State Materials, v. 299, p. 116956, 2024.
THOMAZINI, DANIEL ; DOS SANTOS LIMA, AMANDA ; Gelfuso, Maria Virginia . Synthesis and characterization of cold sintered Ca3Co4O9 ceramics obtained by a simplified Pechini route. Materials Today Communications, v. 35, p. 105887, 2023.
HAGY, L.S. ; RAMOS, K. ; GELFUSO, M.V. ; CHINELATTO, A.L. ; CHINELATTO, A.S.A. . Effects of ZnO addition and microwave sintering on the properties of BaCe0.2Zr0.7Y0.1O3-δ proton conductor electrolyte. CERAMICS INTERNATIONAL, v. 49, p. 17261-17270, 2023.
LIMA, ANA CLARA DE PAULA ; THOMAZINI, DANIEL ; CHINELATTO, ADILSON LUIZ ; Gelfuso, Maria Virginia . Thermoelectric Properties of Ca3Co4O9 Using Microwave Synthesis and Sintering. MATERIALS RESEARCH, v. 26, p. p. e20220487-p. e20220495, 2023.
FERNANDES, THISSIANA DA CUNHA ; THOMAZINI, D. ; GELFUSO, M. V. ; EIRAS, JOSÉ ANTONIO ; AYALA, ALEJANDRO PEDRO ; LENTE, MANUEL HENRIQUE . Correlation between thermal properties, growth parameters and low segregation coefficient in (K, Na)NbO3-based growth by Bridgman-Stockbarger route. Materialia, v. 32, p. 101935, 2023.
RAMÍREZ, C. Q. ; SANTOS, C. V. S. ; GONÇALVES, P. C. ; GELFUSO, M. V. ; SANTOS, V. C. ; SÁNCHEZ, J. A. G. . Interfacial Bonding Strength in Cement Mortar Beams Reinforced with Metamaterial Bars. MATERIALS RESEARCH, v. 25, p. 1-10, 2022.
TORRES, S. O. A. ; ROSA, J. P. M. M. ; THOMAZINI, D. ; GELFUSO, M. V. . Thermoelectric properties of CaMnO3 ceramics produced by using powder synthesized by modified Pechini method. Processing And Application Of Ceramics, v. 16, p. 115-124, 2022.
MACHADO, R. A. M. ; GELFUSO, M. V. ; THOMAZINI, D. . Thermoelectric properties of barium doped calcium cobaltite obtained by simplified chemical route. Cerâmica, 2021.
TORRES, S. O. A. ; Thomazini, Daniel ; BALTHAZAR, G. P. ; GELFUSO, MARIA VIRGINIA . Microstructural influence on thermoelectric properties of CaMnO3 ceramics. Materials Research-Ibero-american Journal of Materials, 2020.
SANTOS, A. M. ; Thomazini, Daniel ; GELFUSO, MARIA VIRGINIA . Cold sintering and thermoelectric properties of Ca3Co4O9 ceramics. CERAMICS INTERNATIONAL, v. 46, p. 14064-14070, 2020.
GELFUSO, M. V. ; URIBE, JUAN OSWALDO MONTOYA ; THOMAZINI, D. . Deficient or excessive CuO-TiO2 phase influence on dielectric properties of CaCu3Ti4O12 ceramics. International Journal of Applied Ceramic Technology, v. 16, p. 868-882, 2018.
SOUZA, R. R. ; THOMAZINI, D. ; GELFUSO, M. V. ; AMORIN, H. ; PEREIRA, A. S. ; SOUSA, V. C. . Ferroelectric characterization of SrBi2Ta2O9 obtained by microwave processing. Journal of Ceramic Processing Research, v. 18, p. 73-78, 2017.
Chaves, A. S. ; GELFUSO, M. V. ; THOMAZINI, D. . Microwave Irradiation Applied to Calcination and Sintering of Strontium Titanate Ceramics. Materials Science Forum (Online), v. 881, p. 24-29, 2016.
GONCALVES, F. R. ; THOMAZINI, D. ; GELFUSO, M. V. . Effect of CuO-TiO2 Eutectic on Thermal and Electrical Conductivities of CaCu3Ti4O12 Ceramics. Materials Science Forum (Online), v. 881, p. 117-122, 2016.
Chaves, A. S. ; RAPONI, O. A. ; GELFUSO, M. V. ; THOMAZINI, D. . Pure and Doped SrTiO3 Powders Obtained by Ultrasonic Synthesis. MATERIALS SCIENCE FORUM (ONLINE), v. 869, p. 3-7, 2016.
Chaves, A. S. ; Raponi, O. A. ; GELFUSO, M. V. ; THOMAZINI, D. . Pure and La3+/Nd3+ Doped SrTiO3 Powders Obtained by Solid State Reaction and Microwave Assisted Hydrothermal Synthesis. Materials Science Forum (Online), v. 820, p. 167-171, 2015.
BENEDETTO, R. M. ; GELFUSO, M. V. ; THOMAZINI, D. . Influence of UV Radiation on the Physical-chemical and Mechanical Properties of Banana Fiber. Materials Research (São Carlos. On-line), v. 18, p. 265-272, 2015.
FERRARO, L. G. ; ALVARENGA, F. B. S. ; GELFUSO, M. V. ; Thomazini, D. . Investigation to Obtain Polyols from Residual Frying Oil. Materials Science Forum (Online), v. 775-776, p. 351-356, 2014.
Chaves, A. S. ; Berti, T. G. ; Raponi, O. A. ; GELFUSO, M. V. ; Thomazini, Daniel . Strontium Titanate Ceramics Obtained by Conventional and Microwave Methods. Materials Science Forum (Online), v. 775-776, p. 445-449, 2014.
Yamane, F. O. ; SILVA, M. L. A. ; FRANCA, D. I. ; MANTUVANELLI, M. V. ; THOMAZINI, D. ; GELFUSO, M. V. . Alternative Coconut Fiber Surface Treatments Methods for the Development of Matrix Composites. Materials Science Forum, v. 775, p. 346-350, 2014.
THOMAZINI, D.; RESENDE, R. U. C. ; Gueratto, D. H. ; GELFUSO, M. V. . Artificial Neural Network Assisted Digital Image Processing to Determine the Hydrophobicity of Polymeric Materials. Materials Science Forum, v. 775, p. 351-356, 2014.
Lanza, A. C. ; THOMAZINI, D. ; GELFUSO, M. V. . Synthesis of Nanostructured PZT Ceramics with Powder Obtained from Coprecipitate Method. Materials Science Forum (Online), v. 798-799, p. 110-115, 2014.
Chaves, A. S. ; Raponi, O. A. ; GELFUSO, M. V. ; THOMAZINI, D. . Synthesis of Strontium Titanate Nanoparticles by Ultrasonic Irradiation. Materials Science Forum (Online), v. 798-799, p. 703-706, 2014.
Thomazini, D.; GELFUSO, M. V. ; Volpi, G. M. S. ; Eiras, J. A. . Conventional and Microwave-Assisted Sintering of CaCu3Ti4O 12 Ceramics Obtained from Coprecipitated Powders. International Journal of Applied Ceramic Technology, v. 1, p. 1-9, 2014.
Chinelatto, A. S. A. ; LAGO OJAIME, CHRISTIANE ; GELFUSO, M. V. ; Thomazini, Daniel ; Chinelatto, A. L. . Effect of Different Sintering Processes on Microstructure of Alumina Ceramics. Advances in Science and Technology (Online), v. 87, p. 145-150, 2014.
Raponi, O. A. ; Chaves, A. S. ; GELFUSO, M. V. ; THOMAZINI, D. . Ultrasonic Synthesis of SrTiO3. Advanced Materials Research (Online), v. 975, p. 56-60, 2014.
GELFUSO, M. V. ; Souza, J.C.S. ; Lima Jr, J.J. ; THOMAZINI, D. . Vibrational analysis of coconut fiber-PP composites. Materials Research (São Carlos. Impresso), p. 367-372, 2013.
Thomazini, Daniel; GELFUSO, M. V. ; Eiras, J. A. . Microwave assisted hydrothermal synthesis of Bi4Ti3O12 nanopowders from oxide as raw materials. Powder Technology (Print), v. 222, p. 139-142, 2012.
Thomazini, Daniel; GELFUSO, M. V. ; ALTAFIM, R. A. C. . Classification of polymers insulators hydrophobicity based on digital image processing. Materials Research (São Carlos. Impresso), v. 1, p. 01-07, 2012.
Thomazini, Daniel; GELFUSO, M. V. ; Eiras, J. A. ; Lima, G. M. . Microstructural and Dielectric Properties of Conventional and Microwave Sintered CaCu3Ti4O12 Ceramics. Materials Science Forum, v. 727-728, p. 1063-1068, 2012.
GELFUSO, M. V. ; Lima, G. M. ; Thomazini, Daniel . Precursors Influence on CaCu3Ti4O 12 Synthesis. Materials Science Forum, v. 727-728, p. 1313-1316, 2012.
Luz, G. M. S. ; GELFUSO, M. V. ; Thomazini, Daniel ; PINTO, P. P. ; Bombard, A. J. F. . Bi4Ti3O12 Particles Size Influence on Electrorheolocical Response. Materials Science Forum, v. 727-728, p. 1462-1466, 2012.
GELFUSO, M. V. ; SILVA, P. V. G. ; Thomazini, D. . Polypropylene matrix composites reinforced with coconut fibers. Materials Research (São Carlos. Impresso), v. 14, p. 360-365, 2011.
THOMAZINI, D.; GELFUSO, M. V. ; Chinelatto, A. S. A. ; Chinelatto, A. L. ; SANSON, F. K. ; Teixeira Neto, F. . Alumina ceramics obtained by chemical synthesis using conventional and microwave sintering. Cerâmica (São Paulo. Impresso), v. 57, p. 45-49, 2011.
GELFUSO, M. V. ; Chinelatto, A. S. A. ; Thomazini, Daniel ; WENDLER, L. P. ; COSTA Jr, D. C. ; Chinelatto, A. L. . Porcelain: Convencional and Microwave Sintering. Materials Science Forum, v. 660-661, p. 866-870, 2010.
THOMAZINI, D.; Diniz, E. C. ; Teixeira Neto, Francisco ; GELFUSO, M. V. . GPC AND PID CONTROLLERS APPLIED IN A SMALL PLANT. Revista Tecnologia (UNIFOR), v. 29, p. 84-90, 2008.
THOMAZINI, D.; GELFUSO, M. V. ; ALTAFIM, R. A. C. . HYDROPHOBICITY CLASSIFICATION OF POLYMERIC MATERIALS BASED ON FRACTAL DIMENSION. Materials Research (São Carlos. Impresso), v. 44, p. 1-4, 2008.
THOMAZINI, D.; Teixeira Neto, Francisco ; GELFUSO, M. V. . Sinterização de Cerâmicas a base de PZT em Forno de Microondas. Cerâmica, v. 53, p. 309-313, 2007.
THOMAZINI, D.; Carvalho, Anna Cristina Barbosa Dias de ; Sobreira, F. B. . Automatização de uma máquina de corte para chapas de granitos. Revista C & I. Controle & Instrumentação, v. 126, p. 01-04, 2007.
THOMAZINI, D.; Eiras, J. A. ; GELFUSO, M. V. . Properties of Bismuth-Strontium Titanate Ceramics Doped with MnO2 and Nd2O3. Revista Tecnologia (UNIFOR), v. 28, p. 129-135, 2007.
THOMAZINI, D.; GELFUSO, M. V. ; NASCIMENTO, Tereza Águida Costa ; FONTELES, Emanuel Frota . A Utilização da Simulação Computacional na Confecção de Órteses Alternativas para Membros Superiores. Revista Tecnologia (UNIFOR), Fortaleza, v. 25, n.1, p. 74-79, 2004.
THOMAZINI, D.; GELFUSO, M. V. ; PEREIRA JÚNIOR, Francisco da Silva . Influência do Defloculante na deposição de alumina por eletroforese. Cerâmica, São Paulo, v. 49, p. 228-231, 2003.
THOMAZINI, D.; LANCIOTTI JR., F. ; GÓES, J. C. ; Sombra, A. S. B. . Optical properties of hidroxyapatite obtained by mechanical alloying. Journal of Physics and Chemistry of Solids, v. 63, p. 1745-1757, 2002.
THOMAZINI, D.; LANCIOTTI JR., F. ; Sombra, A. S. B. . Structural properties of lithium borate glasses doped with rare earth ions. Cerâmica, São Paulo, v. 47, n.302, p. 88-93, 2001.
Almeida, A.F. ; THOMAZINI, D. ; VASCONCELOS, I. ; VALENTE, M. A. ; Sombra, A. S. B. . Structural Studies of Lithium Triborate (LBO-LiB3O5) in Borophosphate glass-ceramics. International Journal of Inorganic Materials, Inglaterra, v. 3, p. 829-838, 2001.
THOMAZINI, D.; Sombra, A. S. B. ; GÓES, J. C. . Effect of the pH on the piezoelectric properties of collagen films. Materials Science and Engineering. B, Solid State Materials for Advanced Technology, v. 83, p. 165-172, 2001.
THOMAZINI, D.; GÓES, J. C. ; Sombra, A. S. B. ; ARANHA, N.. Collagen-hydroxyapatite films: piezoelectric properties. Materials Science and Engineering. B, Solid State Materials for Advanced Technology, v. 86, p. 210-218, 2001.
THOMAZINI, D.; GELFUSO, M. V. ; Eiras, J. A. . Synthesis and Structural, Ferroelectric, and Piezoelectric Properties of SrBi4 Ti4 O15 Ceramics. Journal of the American Ceramic Society, v. 82, n.9, p. 2368-2372, 1999.
THOMAZINI, D.; GELFUSO, M. V. ; Eiras, J. A. . Synthesis, Dielectric and Ferroelectric Properties of Bismuth Titanate Ceramics. Journal of the Korean Physical Society, v. 32, n.S, p. 1178-1179, 1998.
THOMAZINI, D.; GELFUSO, M. V. ; Eiras, J. A. . Anisotropy of Strontium-Bismuth Titanate Ceramics Obtained by Hot-Forging Method. Acta Microscópica - Interamerican Committee of Societies for Electron Microscopy, v. 6, n.A, p. 90, 1997.
THOMAZINI, D.; GELFUSO, M. V. ; Eiras, J. A. . Obtenção de cerâmicas com estruturas de camadas de bismuto pelo método de "hot-forging". Cerâmica, v. 42, p. 573-576, 1996.
Profa. Dra. Maria Virginia Gelfuso (http://lattes.cnpq.br/1931804914096511)
Prof. Dr. Daniel Thomazini (http://lattes.cnpq.br/9231104428523774)
M.Sc Guilherme Magalhães Petinardi (http://lattes.cnpq.br/9384090467393489)
M.Sc João Paulo Martins Mansano Rosa (http://lattes.cnpq.br/4681092687898367)
M.Sc Leonardo Almeida Freire (http://lattes.cnpq.br/2042058747895731)
B.Sc Vitor Hugo Pedrote dos Santos Almeida (http://lattes.cnpq.br/0349823862839115)
Enrico Augusto de Fazio Muniz Menezes (http://lattes.cnpq.br/9727151237646035)
Guilherme de Vasconcellos Reder Furtado (http://lattes.cnpq.br/4646025462763991)
Igor Azevedo Soares (https://lattes.cnpq.br/9213652220359670)
Isabella Framil Guida (http://lattes.cnpq.br/5743954260771688)
Lara Cristina Borges da Hora (http://lattes.cnpq.br/2967128528610829)
Lucca Vieira Lusko
Renan Nilton Santos (http://lattes.cnpq.br/2906017955910574)
Ricardo Garcia da Silveira (http://lattes.cnpq.br/1033560621464056)
1) Caracterização microestrutural: Microscopia Eletrônica de Varredura (até 120.000 vezes).
2) Microanálise química com Espectrocopia de Energia Dispersiva (EDS).
3) Determinação do coeficiente de condutividade térmica pela técnica de Laser Pulsado: da temperatura ambiente até 1000 °C.
4) Determinação do coeficiente Seebeck: da temperatura ambiente até 800 °C em atmosfera controlada.
5) Determinação da condutividade elétrica AC e DC: da temperatura ambiente até 800 °C.
6) Determinação da impedância complexa à temperatura ambiente: frequências de 20 Hz a 30 MHz.
7) Análise térmica diferencial e termogravimétrica: da temperatura ambiente até 1500 °C.
8) Análise dilatométrica: da temperatura ambiente até 1600 °C.
