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  1. No Access

    Article

    Piezoelectric, ferroelectric Pb(Mg1/3Nb2/3)O3–PbTiO3 thin films with compositions around the morphotropic phase boundary prepared by a sol-gel process of reduced thermal budget

    Single perovskite polycrystalline Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN-PT) thin films with PMN to PT ratios around the morphotropic phase boundary composition (070PMN-0.30PT, 0.65PMN-0.35PT, and 0.60PMN-0.40PT) have been...

    M.L. Calzada, M. Algueró, A. Santos, M. Stewart, M.G. Cain… in Journal of Materials Research (2009)

  2. No Access

    Article

    Control growth of PbS quantum dots doped sono-ormosil

    Semiconductor PbS quantum dots doped-SiO2 organically modified silicate (ormosil) gels were synthesised via sol-gel by using high-power ultrasounds (sonogel). The effect of PbS crystal concentration and the addit...

    R. Erce-Montilla, M. PiÑero, N.de la Rosa-Fox, A. Santos… in Journal of Materials Research (2001)

  3. No Access

    Article

    Fe-Al2O3 Nanocomposite: Synthesis and Magnetic Properties

    We have investigated the synthesis and the structural and magnetic properties of Fe nanoparticles embedded in Al2O3 matrix, a granular nanocomposite prepared by sol-gel processing. Samples with volumetric Fe cont...

    A. Santos, W. A. A. Macedo, J. D. Ardisson… in MRS Online Proceedings Library (1999)

  4. No Access

    Article

    Numerical Determination of Nucleation Parameters in Polymorphic Crystallization from Solutions

    A numerical model based in nucleation and growth algorithms has been designed to compute the temporal sequences of precipitation and phase transformation kinetics in metastable solutions of polymorphic or hydr...

    M. Merlo, A. Santos, L. Gago Duport in MRS Online Proceedings Library (1992)