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Cantoblanco 28049 - Madrid (Spain) Fax: +34 91 372 06 23 Phone:+34 91 334 90 66 |
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| Introduction | Partners of GF2 | Experimental techniques | Recent publications | Links | Research projects | ||||
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Prof. Lorena Pardo (Madrid (ES), 1960. Female) ( Email) Ph.D. in Physical Sciences by The “Universidad Complutense de Madrid”, 1987. Permanent Staff of CSIC . Tenure Scientist, from February 1989. Senior Researcher from May 2005. Research Professor from July 2008. Laboratories of Ferroelectric Materials - ICMM.
Participant of more than 35 research projects, being project leader of 5 CE funded research projects with industrial participation, 1 industrial research contract, 1 project under COST514 action on "Ferroelectric Ceramic Thin Films", two bi-lateral cooperation activities (DK, FR), 5 special actions of the National Funding Agency, 1 project and 1 special action of the Madrid Regional Funding Agency (CAM). In particular, at European level, project leader of:
On ferro-piezoceramics the main topics of research were: 1) the application of the quantitative microscopy to the study of polycrystalline ferroelectric materials obtained by non-conventional processing routes (inorganic sol-gel, hydrothermal synthesis, mechanoactivation) and their microstructure-functional properties relationships determination1,2 2) the development of an iterative automatic method for electromechanical characterization from resonance3 of piezoceramics and application to wide range of piezoceramics characterization and processing studies(commercial lead titanate-zirconate (PZT) ceramics3, modified lead titanate compositions ((Ca,Sm, La)-mPT1, alkaline niobates4, Bismuth Layered Structure Ferroelectrics (BLSF)5 and (Bi0.5Na0.5)xBa1- xTiO36) and study of the thermal evolution4 of their properties and their phase transitions7. The main activity on integrated ferroelectrics was the optimization of the multifunctionallity of lead titanate based thin films. Specific examples with focus on the pyro and piezoelectric functionalities are the study of these at nanoscale8, the the preparation of new materials, as the multicompositional heterostructures9 and the study of lead titanate nanostructures10.
1. "Microstructure-properties relationships in Sm-modified lead titanate piezoceramics. Part I: Quantitative study of the microstructure". J.Ricote and L. Pardo.Acta Metallurgica et Materialia 44((3), 1155-1167 (1996). 2. "Enhanced properties for ultrasonic transduction, phase transitions and thermal
depoling in 0.96(Bi0.5Na0.5)TiO3-0.04BaTiO3 submicron structured
ceramic”.L. Pardo, A. García, K. Brebøl, E. Mercadelli and C. Galassi.
J. Phys. D: Appl. Phys 44 ,335404 (2011). 3. “Properties of Ferro-Piezoelectric Ceramic Materials in the Linear Range: Determination from Impedance Measurements at Resonance”. L. Pardo and K. Brebøl. Chapter 13 in “Multifunctional Polycrystalline Ferroelectric Materials: Processing and Properties” Eds. L. Pardo and J. Ricote. Springer Series in Materials Science, Vol. 140. Springer, Londres (UK) (2011). 4. " Temperature behaviour of structural, dielectric and piezoelectric properties of sol-gel processed ceramics of the system LiNbO3-NaNbO3".L. Pardo, P.Duran-Martín, J.P. Mercurio, L. Nibou and B. Jimenez. Journal of Physics and Chemistry of Solids 58(9), 1335-1339(1997). 5. "(Bi3TiNbO9)x(SrBi2Nb2O9)1-x Aurivillius type structure piezoelectric ceramics obtained from mechanochemically activated oxides". L. Pardo, A. Castro, P. Millán, C. Alemany, R. Jimenez and B. Jiménez. Acta Materialia 48(9), 2421-2428 (2000). 6.
"Piezoelectric characterization of Lead-Free Ferroelectric Ceramics". L. Pardo, A. García, K. Brebøl, L. P.
Curecheriu, L. Mitoseriu, E. Mercadelli and C. Galassi. Processing and Applications of Ceramics
(2010)4(3), 199–207 (2010). 7. “Field-Induced Phase Transition and Relaxor Character in Submicron Structured
Lead-Free (Bi0.5Na0.5)0.94Ba0.06TiO3 Piezoceramics at the Morphotropic
Phase Boundary.” L. Pardo, E. Mercadelli, A. García, K. Brebøl and C. Galassi. IEEE Trans. UFFC,
58(9), 1893-1904 (2011). 8. "Stress-induced suppression of piezoelectric properties in PbTiO3:La films via Scanning Force Microscopy".A. L. Kholkin,V. V. Shvartsman, A. Yu. Emelyanov, R. Poyato, M.L. Calzada and L. Pardo.Applied Physics Letters 82(13), 2127-2129 (2003). 9. "Reduced Dielectric Dispersion on ferroelectric (Pb,La)TiO3 /(Pb,Ca)TiO3 Thin Film Multilayer Heterostructures owed to a mechanical stress relaxation mechanism".R.Poyato, M.L. Calzada and L. Pardo.Applied Physics Letters 84(21), 4161-4163 (2004). 10.
"Influence of the substrate surface on the self-assembly of ferroelectric PbTiO3 nanostructures obtained by
microemulsion assisted Chemical Solution Deposition". M. Torres, M. Alonso, M.L. Calzada and L. Pardo.
Ferroelectrics 390(1), 122-129 (2009).
Updated May 2012 Background: coloured image of SEM of the microstructure of a (Bi0.5Na0.5)TiO3-BaTiO3 ceramic obtained by hot-pressing and recrystallization (A. García, J.L. Millán and L.Pardo. ICMM-CSIC(ES)-E. Mercadelli and C. Galassi ISTEC-CNR (IT)).
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