• CEMs and Faraday rotation study of ¿-Fe2O3- Fe3O4films obtained by a new pyrolisis technique 

    Cusidó Fàbregas, Joan Antoni; Obradors Berenguer, Xavier; Fontcuberta, Josep; Isalgue Buxeda, Antonio; Canal Bienzobas, Fernando; Joubert, Jean C.; Langlet, M. (1987-01)
    Article
    Accés obert
    Thin film iron oxides prepared by a new pyrolisis technique are studied by means of CEM spectroscopy and Faraday rotation measurements. It is shown that Fe3O4spinel oxides are obtained when the deposition is performed under ...
  • Fabrication of melt-textured cylinders and bars of (YBa2Cu3O7-Y2BaCuO5) superconductors 

    Piñol Vidal, Salvador; Yu, R; Vilalta, Nuria; Sandiumenge, Felip; Gomis Arbonès, Vicente; Martínez, Benjamín; Mora Serrano, Javier; Fontcuberta, Josep; Obradors Berenguer, Xavier (1996)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    Cylinders and bars of bulk YBa2CuO7-Y2BaCuO5 textured ceramic composites (123-211) have been prepared through different directional solidification processes. Green ceramic preforms for the directional solidification process ...
  • Functional behaviour of the anomalous magnetic relaxation observed in melt-textured YBCO samples showing the paramagnetic Meissner effect 

    Teixeira Dias, Fábio; Vieira, Valdemar das Neves; Garcia, E.L.; Wolff-Fabris, Frederik; Kampert, Erik; Paiva Gouvêa, Cristol de; Schaf, Jacob; Obradors Berenguer, Xavier; Puig, Teresa; Roa Rovira, Joan Josep (2016)
    Article
    Accés restringit per política de l'editorial
    We have studied the functional behavior of the field-cooled (FC) magnetic relaxation observed in melt- textured YBa 2 Cu 3 O 7- d(Y123) samples with 30 wt% of Y 2 Ba 1 Cu 1 O 5 (Y211) phase, in order to investigate anomalous ...
  • High-field paramagnetic Meissner effect up to 14 T in melt-textured YBa2Cu3O7-delta 

    Teixeira Dias, Fábio; Vieira, Valdemar das Neves; Wolff-Fabris, Frederik; Kampert, Erik; Paiva Gouvêa, Cristol de; Campos, A.P.C.; Archanjo, B.S.; Schaf, Jacob; Obradors Berenguer, Xavier; Puig, T.; Roa Rovira, Joan Josep; Sahoo, B.K. (2016-06-01)
    Article
    Accés restringit per política de l'editorial
    We have performed magnetization experiments in a melt-textured YBa2Cu3O7-delta(Y123) sample with Y2BaCuO5 (Y211) inclusions, under magnetic fields up to 14 T applied parallel or perpendicular to the ab plane. Magnetic ...
  • Hysteresis motor with self sustained rotor for high speed applications 

    Granados García, Xavier; Márquez, Isabel; Mora Serrano, Javier; Fontcuberta, Josep; Obradors Berenguer, Xavier; Pallarés, J.; Bosch Tous, Ricardo (Institute of Physics (IOP), 1997)
    Text en actes de congrés
    Accés obert
    Pellets of YBCO HTSC have been used to construct a cylindrically shaped rotor. A four poles/four phases stator has been wound in order to build a motor. The motor behaves as an hysteresis motor when it starts and as ...
  • Preparation of top seeded YBa2Cu3O7 large single-domain tiles 

    Yu, R; Gomis Arbonès, Vicente; Piñol Vidal, Salvador; Sandiumenge, Felip; Mora Serrano, Javier; Carrera, Miquel; Fontcuberta, Josep; Obradors Berenguer, Xavier (1997)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    Single domain superconductors with diameters up to 40 mm have been prepared by top seeding growth using Nd123 melt textured ceramics as seeds. We show that the use of these seeds is preferred over MgO single crystals to ...