Now showing items 1-10 of 10

  • Contribution of reversible processes to the non-linear dielectric response in hard lead zirconate titanate ceramics 

    García García, José Eduardo; Pérez Pérez, Rafael; Albareda Tiana, Alfonso (2005-10)
    Article
    Open Access
    Se estudia la dependencia entre la constante dieléctrica y las pérdidas con el campo eléctrico aplicado, así como entre la constante dieléctrica y las pérdidas dieléctricas. Los resultados muestran que las cerámicas PZT ...
  • Dielectric and mechanical nonlinear behavior of Mn doped PMN-35PT ceramics 

    Kobor, Diouma; Hajjaji, Abdelowahed; García García, José Eduardo; Pérez Pérez, Rafael; Albareda Tiana, Alfonso; Lebrun, Laurent; Guyomar, Daniel (2010-10)
    Article
    Open Access
    This paper presents an investigation on dielectric and mechanical nonlinear properties in Mn-doped PMN-35PT ceramics. The structural study of the ceramics verifies that the 1% mol Mn doped PMN-35PT is a pure perovskite ...
  • Extrinsic behaviour of PZT ceramics near the morphotropic phase transition 

    Albareda Tiana, Alfonso; Pérez Pérez, Rafael; García García, José Eduardo; Tiana Alsina, Jordi; Pérez Codina, Estel (2005-09)
    Article
    Open Access
    The aim of this work is to study the dependence of the linear and non-linear dielectric, piezoelectric and mechanical coefficients on the Ti fraction in PZT ceramic compositions near the morphotropic phase boundary. The ...
  • Extrinsic coefficient characterisation of PZT ceramics near the morphotropic phase boundary 

    Albareda Tiana, Alfonso; Pérez Pérez, Rafael; García García, José Eduardo; Tiana Alsina, Jordi; Pérez Codina, Estel; Gorri Ochoa, José Antonio (2006-05)
    Article
    Open Access
    El comportamiento extrínseco de las cerámicas PZT, relacionado con el movimiento de las paredes de los dominios, comporta efectos no lineales grandes. Esta correspondencia entre efectos extrínsecos y no linealidades puede ...
  • Influence of extrinsic contribution on the macroscopic properties of hard and soft lead zirconate titanate ceramics 

    Ochoa Guerrero, Diego A.; García García, José Eduardo; Pérez Pérez, Rafael; Albareda Tiana, Alfonso (Institute of Electrical and Electronics Engineers (IEEE), 2008-12)
    Article
    Open Access
    In this work, the contribution of the extrinsic effect to the macroscopic properties in soft and hard lead zirconate titanate ceramics is directly evaluated. Close to the room temperature, poled hard ceramics show an ...
  • No linealidad del efecto piezoeléctrico directo d33 en cerámicas PZT 

    Pérez Pérez, Rafael; Albareda Tiana, Alfonso; Pérez Codina, Estel; García García, José Eduardo; Tiana Alsina, Jordi; Gorri Ochoa, José Antonio (2006-05)
    Article
    Open Access
    Se ha implementado una nueva técnica de medida aplicando un esfuerzo uniaxial sobre la muestra y midiendo la carga generada. Se aplica un esfuerzo suficientemente intenso para producir efectos no lineales, y se analiza ...
  • Nonlinear behavior in a piezoelectric resonator: a method of analysis 

    García García, José Eduardo; Pérez Pérez, Rafael; Albareda Tiana, Alfonso; Minguella Blasco, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2000-07)
    Article
    Open Access
    Theories used for understanding nonlinear behavior of piezoelectric resonators are usually only valid for a given range of amplitudes. Thus, important discrepancies can sometimes be observed between theory and experiment. ...
  • Optimization of elastic nonlinear behavior measurements of ceramic piezoelectric resonators with burst excitation 

    Albareda Tiana, Alfonso; Pérez Pérez, Rafael; Casals Mirones, Jorge; García García, José Eduardo; Ochoa Guerrero, Diego A. (Institute of Electrical and Electronics Engineers (IEEE), 2007-10)
    Article
    Open Access
    A system of nonlinear measurement and nonlinear elastic characterization of resonators is presented, which increases the possibilities and characteristics of the other classic nonlinear characterization methods. This ...
  • Oscilaciones y ondas 

    Gorri Ochoa, José Antonio; Toribio Millán, Eliezer; Albareda Tiana, Alfonso (Edicions UPC, 2008)
    Book
    Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
    Oscilaciones y ondas quiere ser un texto que inicie al estudiante en el conocimiento del modelo ondulatorio de una manera unificada. Su nivel va algo más allá del que es habitual en una física básica universitaria, pero ...
  • Unexpected dielectric response in lead zirconate titanate ceramics: The role of ferroelectric domain wall pinning effects 

    García García, José Eduardo; Gomis Arbonès, Vicente; Pérez Pérez, Rafael; Albareda Tiana, Alfonso; Eiras, Jose A. (2007-07)
    Article
    Open Access
    Temperature dependent dielectric response has been measured in Pb(Zr1-xTix)O-3 ceramics. Samples of different compositions (x=0.40, 0.47, and 0.60), pure and doped with Nb-or Fe, were studied at temperatures between 15 and ...