• Síntese de novos materiais cerâmicos ou compósitos nanoestruturados (ferroelétricos, piezoelétricos ou multiferroicos).
• Métodos alternativos de processamento cerâmico (sinterização por prensagem uniaxial à quente, por dois estágios ou por “Spark Plasma Sintering”).
• Investigação de relações estrutura/microestrutura – propriedades em materiais.
• Estudos fenomenológicos em materiais ferroelétricos, piezoelétricos e multiferróicos.
• Desenvolvimento de dispositivos baseados em materiais ferroelétricos, piezoelétricos ou multiferróicos.

Docentes
Prof. Dr. José Antônio Eiras
Prof. Dra. Ducinei Garcia
Prof. Dr. Fabio Luis Zabotto

Pesquisadores e pós-docs
Dr. Flavio Paulo Milton
Dr. Luíz Antonio Bassora
Dr. Mahmoud Saleh Mohammed Alkathy
Dr. Everaldo Nassar Moreira

Pós-graduandos
MSc. Aloadir Lucas Santos de Oliveira
Ricardo Pereira Bonini
Giovani Martim Albuquerque
Glauber Fernando Furlan

Estudantes
Adélia Victoria Lazaro Rodrigues
Bruno Souza Marques
Catarine Padovani Moreira
Guilherme Ilário Correr
Gustavo Correia Espírito
Nicolas Meira Galvão
Rodrigo Ambrosio Rodrigues de Carvalho
Vitor Melo Frata Barbosa

Apoio Técnico e Administrativo
Suely Vall
Francisco José Picon
Lais Conservan Nogueira

EGRESSOS
Mauricio Lima Souza
Michel Marcos Jordão Miranda
Vinicius Pretti Rossi
Leonardo Luís Lemes
Dr. André Marino Gonçalves
Dra. Driele Von Dreifus
Dr. Rafael Rodrigo Garofalo Paranhos
Bruno Santorelli Laissener
Kevin Augusto Teles
Caique Serati de Brito
Lucas Boldrini de Oliveira
Maynara Ellen Nachbar

Caracterizações, segundo ASTM, de:

• Módulos elásticos (10K – 400K).
• Coeficientes dielétricos (constante dielétrica e e tg d / 100Hz – 13Gz / 10K – 700K).
• Condutividade elétrica (10K – 700K).
• Coeficientes piezoelétricos.

Cursos básicos em materiais dielétricos, ferroelétricos e piezoelétricos, e consultorias em:

• Síntese e produção de materiais cerâmicos, compósitos (convencionais ou nanoestruturados) e nanoestruturas bidimensionais (filmes finos).
• Projeto, construção e caracterização de dispositivos baseados e materiais piezoelétricos (sensores, atuadores e transdutores ultrassônicos).

Datas do processo seletivo do Programa de Pós-Graduação em Física do DF UFSCar: acesso em < http://www.ppgfis.df.ufscar.br/ >.

Equipamentos para:

Síntese e Produção de Pós e Materiais Cerâmicos

Produção de Materiais (micro ou nanoestruturados) Cerâmicos por Técnicas não Convencionais

Síntese e Produção de Nanoestruturas (Bidimensionais)

Técnicas de Análise e Caracterização

MASTELARO, V.R. ; FAVARIM, H.R. ; Mesquita, A. ; MICHALOWICZ, A. ; MOSCOVICI, J. ; Eiras, J.A. . Local structure and hybridization states in Ba0.9Ca0.1Ti1−xZrxO3 ceramic compounds: Correlation with a normal or relaxor ferroelectric character. Acta Materialia (Oxford), v. 84, p. 164-171, 2015.

PLACERES-JIMÉNEZ, R ; RINO, J P ; Eiras, J A . Modeling ferroelectric permittivity dependence on electric field and estimation of the intrinsic and extrinsic contributions. Journal of Physics. D, Applied Physics (Print), v. 48, p. 035304, 2015.

ESTRADA, F. R. ; MASCARENHAS, Y. P. ; Eiras, J. A. ; GARCIA, D. . Thermal Induced Structural and Dielectric Anomalies in Calcium Modified Lead Titanate Ceramics. Ferroelectrics (Print), v. 463, p. 25-30, 2014.

SARASÚA, L. G. ; MORENO, A. ; FAVRE, S. ; Eiras, J. A. . Investigation of a relationship between dielectric peak diffuseness and elastic modulus variations in a ferroelectric relaxor. Journal of Applied Physics, v. 115, p. 114110, 2014.

THOMAZINI, D; GELFUSO, MV ; VOLPI, GMS ; Eiras, JA . Conventional and Microwave-Assisted Sintering of CaCu 3 Ti 4 O 12 Ceramics Obtained from Coprecipitated Powders. International Journal of Applied Ceramic Technology, v. 12, p. n/a-n/a, 2014.

FRAYGOLA, B. ; Eiras, J.A. . Intrinsic magnetoelectric coupling in PFW-PT solid solutions. Solid State Communications, v. 158, p. 54, 2013.

VIANA, D.S.F. ; GARCIA, D. ; Eiras, J A. ; OLZON-DIONYSIO, M. ; SOUZA, S.D. ; MONTANHER, D.Z. ; Cótica, L.F. ; SANTOS, I.A. ; Coelho, A.A. ; GOTARDO, R.A.M. . Magnetic states and valence fluctuations in charge frustrated polycrystalline lutetium ferrite samples. Scripta Materialia, v. 69, p. 670-673, 2013.

JIMENEZ, RP; RINO, JP ; GONCALVES, AM ; EIRAS, JA . Nonlinear dielectric response and transient current: An effective potential for ferroelectric domain wall displacement. Applied Physics Letters, v. 103, p. 112901, 2013.

LONDONO, F. A. ; Eiras, J. A. ; GARCIA, D. . Optical and electro-optical characteristics of hot-pressing (Pb1-xLax)TiO3 ferroelectric ceramics. Boletín de la Sociedad Española de Cerámica y Vidrio, v. 51, p. 353-358, 2012.

Venet, M ; Zabotto, FL ; Eiras, JA; Garcia, D. High and tunable piezoelectric coefficients in 0.675Pb(Mg Nb )O3 0.325PbTiO3 ceramics. Materials Research Bulletin, v. 47, p. 2219-2221, 2012.

COTICA, L. F. ; ESTRADA, F. R. ; FREITAS, V. F. ; DIAS, G. S. ; SANTOS, I. A. ; Eiras, J. A. ; GARCIA, D. . Ferroic states in La doped BiFeO3-PbTiO3 multiferroic compounds. Journal of Applied Physics, v. 111, p. 114105, 2012.

THOMAZINI, D ; GELFUSO, MV ; Eiras, JA . Microwave assisted hydrothermal synthesis of Bi4Ti3O12 nanopowders from oxide as raw materials. Powder Technology (Print), v. 222, p. 139-142, 2012.

ZABOTTO, F. L. ; GUALDI, A. J. ; DE OLIVEIRA, A. J. A. ; Eiras, J. A. ; GARCIA, D. . Effect of Ferrite Concentration on Dielectric and Magnetoelectric Properties in (1-x)Pb(Mg 1/3 Nb 2/3 ) 0.68 Ti 0.32 O 3 +(x) CoFe 2 O 4 Particulate Composites. Ferroelectrics (Print), v. 428, p. 122-128, 2012.

FRAYGOLA, B. ; FRIZON, N. ; LENTE, M.H. ; Coelho, A.A. ; GARCIA, D. ; Eiras, J.A. . Phase transitions and magnetoelectroelastic instabilities in Pb(Fe1/2Nb1/2)O3 multiferroic ceramics. Acta Materialia (Oxford), v. 61, p. 1518-1524, 2012.

FRAYGOLA, B. ; Coelho, A.A. ; GARCIA, D. ; Eiras, J.A. . Magnetic ordering and instability investigation of multiferroic Pb(Fe2/3W1/3)O3 ceramics by microwave dielectric spectroscopy. Solid State Communications, v. 151, p. 1810-1813, 2011.

AULET, A. ; Nunez, I. ; MORENO, E. ; Eiras, J. A. ; NEGREIRA, C. A. . Design and acoustic characterization of limited diffraction ultrasonic devices. The Journal of the Acoustical Society of America, v. 127, p. 2737, 2010.

VENET, M. ; ZABOTTO, F. L. ; Eiras, J. A. ; GARCIA, D. . Improvement of the phase diagram for the pseudobinary PbNb[sub 2]O[sub 6] BaNb[sub 2]O[sub 6] system. Journal of Applied Physics, v. 105, p. 124106, 2009.

Gotardo, R A.M. ; Santos, I A. ; Cótica, L F. ; Botero, É R. ; Garcia, D ; Eiras, J. A. . Improved ferroelectric and magnetic properties of monoclinic structured 0.8BiFeO3 0.2BaTiO3 magnetoelectric ceramics. Scripta Materialia (Oxford), v. 61, p. 508-511, 2009.

ANDREETA, E. R. M. ; SANTOS, H. F. L. ; ANDREETA, M. ; LENTE, M. H. ; GARCIA, D ; HERNANDES, A. C. ; EIRAS, JA. Anisotropy on SrTiO3 Templated Textured PMN-PT monolithic ceramics. Journal of the European Ceramic Society, v. 27, p. 2463-2469, 2007.

ALBAREDA, A. ; PEREZ, R. ; GARCIA, J. E. ; OCHOA, D. A. ; GOMIS, V. ; EIRAS, JA. . Influence of donor and acceptor substitutions on the extrinsic behavior of PZT piezoceramics. Journal of the European Ceramic Society, v. 27, p. 4025-4028, 2007.

FAVARETTO, R ; GARCIA, D ; EIRAS, JA. Effects of WO3 on the microstructure and optical transmittance of PLZT ferroelectric ceramics. Journal of the European Ceramic Society, v. 27, p. 4037-4040, 2007.

CALAS, H. ; FIGUEREDO, J. ; MORENO, E. ; EIRAS, JA; LEIJA, L. ; VERA, A. . A model for radial modes in piezoelectric disk exhibiting Bessel polarizations. Applied Physics Letters, v. 91, p. 263509-1-263509-3, 2007.

MIR, M ; DEPAULA, C ; GARCIA, D ; KIMINAMI, R ; EIRAS, J A; MASCARENHAS, Y . Microstructural characterization using the Rietveld method in lead lanthanum titanate ceramics system produced by combustion synthesis. Journal of the European Ceramic Society, v. 27, p. 3719-3721, 2007.

VENET, M ; SANTOS, I A ; EIRAS, JA; GARCIA, D . Potentiality of SBN textured ceramics for pyroelectric applications. Solid State Ionics, v. 177, p. 589-593, 2006.

VENET, M ; VENDRAMINI, A ; GARCIA, D ; EIRAS, JA. Tailoring of the lead Metaniobate Ceramic Processing. Journal of the American Ceramic Society, v. 89, p. 2399-2404, 2006

I. Núñez ; DODAT, D. ; AULET, A. ; ARZUA, A. ; NEGREIRA, C. A. ; EIRAS, JA. Fast Reconstruction or the Ultrasonic Bessel Transducer Field by Using Schlieren Techniques. Ferroelectrics, v. 333, p. 107-113, 2006.

FALCAO, E. A. ; PEREIRA, J. R. D. ; SANTOS, I. A. ; NUNES, A. R. ; MEDINA, A. N. ; BENTO, A. C. ; BAESSO, M L ; GARCIA, D ; EIRAS, JA. Thermo Optical Properties of Transparent PLZT 10/65/35 Ceramics. Ferroelectrics, v. 336, p. 191-196, 2006.

CAMARGO, A. S. S. ; BOTERO, E. R. ; GARCIA, D ; EIRAS, Jose Antonio ; NUNES, L. A. O. . Nd3+-doped lead lanthanum zirconate titanate transparent ferroelectric ceramic as a laser material: Energy transfer and stimulated emission. Applied Physics Letters, USA, v. 86, n.15, p. 152905-1-152905-3, 2005.

GUERRA, J de Los Santos ; GARCIA, D ; EIRAS, JA ; SOMIYA, Y. ; CROSS, L. ; BHALLA, A S . Microwave dielectric response of (Sr0.80 Pb0.20)TiO3 based ferroelectrics composites. Journal of the European Ceramic Society, v. 25, p. 2089-2092, 2005.

VENET, M ; VENDRAMINI, A ; ZABOTTO, F. L. ; GUERRERO, F. ; GARCIA, D. ; EIRAS, JA. Piezoelectric properties of undoped and titanium or barium-doped lead metaniobate ceramics. Journal of the European Ceramic Society, v. 25, p. 2443-2446, 2005.

PICININ, A ; LENTE, M. H. ; EIRAS, JA; RINO, J. P. . Theoretical and Experimental Investigations of Polarization Switching in Ferroelectric Materials. Physical Review B – Solid State, Estados Unidos, v. 69, p. 1-8, 2004.

CAMARGO, A. S. S. ; NUNES, L. A. D. ; SANTOS, I A ; GARCIA, D ; EIRAS, JA . Structural and spectroscopic properties of rare-earth (Nd3+, Er3+, and Yb3+) doped transparent lead lanthanum zirconate titanate ceramics. Journal of Applied Physics, Estados Unidos, v. 95, n.4, p. 2135-2140, 2004.

SANTOS, I A ; GARCIA, D ; EIRAS, JA; ARANTES, V L . Features of diffuse phase transition in lead barium niobate ferroelectric ceramics. Journal of Applied Physics, United States, v. 93, n.3, p. 1701-1706, 2003.

VENET, M ; GARCIA, D ; EIRAS, JA; PEKO, J. ; AMORIN, H. . Ferroelectric Properties of Lanthanum and Titanium Modified SBN Ceramic System. Physica Status Solidi. B, Basic Research, Weinheim, v. 238, p. 198-203, 2003.

SANTOS, José de Los ; GARCIA, D ; EIRAS, JA. Dielectric Characterization of Materials at Microwave Frequency Range. Materials Research, v. 6, p. 97-101, 2003

BALTAZAR RODRIQUES, J.; EIRAS, JA. Preparation and characterization of PLT thick-films produced by a chemical route. Journal of the European Ceramic Society, v. 22, n.16, p. 2927-2932, 2002.

LENTE, M H ; EIRAS, JA. Domain reorientation anisotropy in ferroelectric polycrystals. Journal of Applied Physics, v. 92, n.4, p. 2112-2117, 2002.

LANCIOTTI JR, F. ; PIZANI, P. S. ; SANTOS, I A ; CARMO, C. V. ; GARCIA, D ; EIRAS, JA . Raman scattering investigation on the phase evolution of ferroelectric lead barium niobate. Journal of Physics and Chemistry of Solids, v. 62, n.7, p. 1247-1250, 2001.

LIMA, K C V ; SOUZA FILHO, A G ; AYALA, A P ; MENDES FILHO, J ; FREIRE, P. T. C. ; MELO, F e A ; ARAUJO, E. B. ; EIRAS, JA . Raman study of morphotropic phase boundary in PbZr1-xTixO3 at low temperatures. Physical Review B – Condensed Matter and Materials Physics, v. 63, n.18, p. 41051-41055, 2001.

SANTOS, I. A ; EIRAS, JA . Phenomenological description of the diffuse phase transition in ferroelectrics. Journal of Physics. Condensed Matter, v. 13, n.50, p. 11733-11740, 2001.

SANTOS, I. A ; GARCIA, D ; EIRAS, JA ; MANOEL, e R ; HERNANDES, A C . Field-induced sharp ferroelectric phase transition in Sr0.66Ba0.34Nb2O6 relaxor ferroelectric. Applied Physics Letters, v. 79, n.17, p. 2800-2802, 2001.

SANTOS, I. A ; ENDO, C. ; ZANIN, A. ; LENTE, M. H. ; EIRAS, Jose Antonio ; GARCIA, D . Hot-pressed transparent PLZT ceramics from low cost chemical processing. Materials Research, v. 4, n.4, p. 291-295, 2001.

LENTE, M. H. ; EIRAS, J.A. . 90º Domain Reorientation and Domain Wall Rearrangement in lead Zirconate Titanate Ceramics Characterized by transient current and Hysteresis Loop Measurements. Journal of Applied Physics, v. 89, p. 5093-5099, 2001.

SOUZA FILHO, A G ; LIMA, K C V ; AYALA, A P ; GUEDES, L. ; FREIRE, P. T. C. ; MENDES FILHO, J. ; ARAUJO, E. B. ; EIRAS, J.A. . Monoclinic phase of PZT ceramics: Raman and phenomenological theory studies. Physical Review B – Condensed Matter and Materials Physics, v. 61, n.21, p. 14283-14286, 2000.

MORENO-GOBBI, A. O. ; MACHO, M. P. ; PAOLINI, G. ; NEGREIRA, C. A. ; GARCIA, D. ; EIRAS, J. A. .Ultrasound studies of phase transitions in tungsten bronze ferroelectric materials. Journal of Alloys and Compounds, v. 310, n.1-2, p. 29-31, 2000.

LENTE, M. H. ; EIRAS, J.A.. Interrelationship between self-heating and ferroelectric properties in PZT ceramics during polarisation reorientation. Journal of Physics. Condensed Matter, Inglaterra, v. 12, p. 5939-5950, 2000.

ARAUJO, E. B. ; EIRAS, J.A. . Preparation of PZT, PLZT and Bi4Ti3O12 thin films from oxide precursors. Journal of the European Ceramic Society, LONDON, v. 19, n.6-7, p. 1453-1456, 1999.

CARMO, C. V. ; PAULA, R N de ; PÓVOA, J. M. ; GARCIA, D ; EIRAS, J.A.. Phase Evolution and Densification Behavior of PBN Ceramics. Journal of the European Ceramic Society, LONDON, v. 19, n.6-7, p. 1057-1060, 1999.

SPÍNOLA, D. U. ; SANTOS, I. A. ; BÁSSORA, L A ; EIRAS, J.A. ; GARCIA, D . Dielectric properties of rare earth doped (Sr, Ba) Nb2O6 ceramics. Journal of the European Ceramic Society, LONDON, v. 19, n.6-7, p. 1111-1114, 1999.

BASSORA, L A ; EIRAS, J. A. . Dielectric relaxation in PLT (Pb1-xLaxTiO3) in the microwave region (0.05 – 2 GHz). Ferroelectrics, LONDON, v. 223, n.1-4, p. 285-292, 1999.

GELFUSO, M V ; THOMAZINI, D. ; EIRAS, J.A. . Synthesis, structural, ferroelectric and piezoelectric properties of SrBi4Ti4O15 ceramics. Journal of the American Ceramic Society, v. 82, n.9, p. 2368-2372, 1999.

MENDES, R G ; ARAUJO, E. B. ; EIRAS, J.A. . Influence of heat treatment on crystallization on strontium barium niobate ferroelectric thin films. Journal of Physics. Condensed Matter, Bristol, v. 11, n.48, p. 9611-9617, 1999.

ARAUJO, E. B. ; BRATUSEK, J. ; GARCIA, D ; EIRAS, J.A.. Optimization of conditions to prepare PLZT thin films from oxide precursors. Journal of Materials Science, LONDON, v. 18, n.23, p. 1961-1962, 1999.

TAVARES, E. C. S. ; PIZANI, P. S. ; EIRAS, J.A.. Short range disorder in lanthanum-doped lead titanate ceramics probed by raman scattering. Applied Physics Letters, v. 72, n.8, p. 897-899, 1998.

PÓVOA, J. M. ; MOREIRA, E. N. ; GARCIA, D. ; SPINOLA, D. U. P. ; CARMO, C. G. V. ; EIRAS, J.A.. Phase transition and dielectric characteristics of tungsten bronze ceramics. Journal of the Korean Physical Society, v. 32, p. S1046-S1048, 1998.

MOREIRA, E. N. ; LENTE, M. H. ; PÓVOA, J. M. ; EIRAS, J.A.. A study on domain reorientation in PZT ceramics. Journal of the Korean Physical Society, v. 32, p. S742-S743, 1998.

ARAUJO, E. B. ; EIRAS, J. A. . PZT Thin Films Obtained From Oxide Precursors. Journal of Materials Science, NORWELL-MA, v. 17, p. 833-835, 1998.

GELFUSO, M. V. ; EIRAS, J.A.. Low temperature sintering of lead zirconate-titanate with V2O5. Acta Microscópica, v. 5, p. 92-93, 1996.

THOMAZINI, D. ; GELFUSO, M. V. ; EIRAS, J.A. . Dielectric properties of bismuth compounds with layered structures. Acta Microscópica, v. 5, p. 136-137, 1996.

MORENO-GOBBI, A. O. ; EIRAS, J.A. . Dislocation damping and associated modulus defect In cooper crystals. Journal of Alloys and Compounds, v. 211-2, p. 152-154, 1994.

MOREIRA, E. N. ; EIRAS, J.A. . Influence of heterovalente doping on relaxor behavior of PLZT 9/65/35. Ferroelectrics, London – GB, v. 158, p. 271-276, 1994.

GARCIA, D. ; MOREIRA, E. N. ; BALTAZAR-RODRIGUES, J. ; EIRAS, J. A. . Relaxor characteristics of PLZT 9/65/35 related to raw materials morphology. Electroceramics, v. 4, n.1, p. 421-424, 1994.

MENEGAZZO, B. A. ; EIRAS, J. A.. Preparation of coprecipitated ferroeletric ceramic powders by two stage calcination.. Journal of the American Ceramic Society, Easton – US, v. 76, n.11, p. 2734-2736, 1993.

EIRAS, J.A. ; GARCIA, D. Piezoelectric and dielectric properties of some La, Mn modified PbTiO3 ceramics. Ferroelectrics, London – GB, v. 123, n.1-2, p. 51-59, 1991.

O GMF está localizado no Dep. de Física da Universidade Federal de São Carlos (DF/UFSCar) que está situado na cidade de São Carlos – SP a 230 Km da capital São Paulo, que são interligadas pelas rodovias Anhanguera ou Bandeirantes e Washington Luís. Duas empresas de ônibus (Empresa Cruz e Viação Cometa) partem do Terminal Tietê em São Paulo, alternando-se a cada meia hora. Aeroportos mais próximos:

• Aeroporto Dr. Leite Lopes – Ribeirão Preto saiba mais
• Aeroporto internacional de Viracopos (VCP) – Campinas saiba mais
• Aeroporto de Congonhas (CGH) – São Paulo saiba mais
• Aeroporto internacional de Guarulhos (GRU) – São Paulo saiba mais

Endereço para correspondência:  Grupo de Materiais Ferroicos – Departamento de Física Universidade Federal de São Carlos Rod. Washington Luís, Km 235 – São Carlos – SP – Brasil CEP 13565-905 Fone : +55 16 3351 8227 E-mail: gmf@ufscar.br Coordenadas: W 47° 53′ 01″ S  21° 59′ 00,5″ Para entrar em contato, preencha o formulário abaixo: