Exploració per autor "Rodríguez Viejo, Javier"

Ara es mostren els items 1-5 de 5

    • Effect of minor Co additions on the crystallization and magnetic properties of Fe(Co)NbBCu alloys 

      Torrens Serra, Joan; Bruna Escuer, Pere; Roth, Segmar; Rodríguez Viejo, Javier; Clavaguera Mora, Maria Teresa (2010)
      Article
      Accés obert
      The effect of partial replacement of Fe by Co (up to 8 %) on thermal stability, structure and magnetic properties of FeNbBCu alloys has been explored in this paper. The results indicate that Co reduces the stability against ...

    • Multiple glass transitions in vapor-deposited orientational glasses of the most fragile plastic crystal Freon 113 

      Vila Costa, Anna; Ràfols Ribé, J.; Gonzalez Silveira, Marta; Lopeandía Fernández, Aitor; Tamarit Mur, José Luis; Rodríguez Viejo, Javier (Royal Society of Chemistry (RSC), 2019-05-28)
      Article
      Accés obert
      We investigate by fast-scanning nanocalorimetry the formation of Freon 113 films from the vapor phase at deposition temperatures ranging from 50 to 120 K, that is, spanning above and below the transition temperature of the ...

    • Real-time microscopy of the relaxation of a glass 

      Ruiz Ruiz, Marta; Vila Costa, Anna; Bar, Tapas; Rodríguez Tinoco, Cristian; Gonzalez Silveira, Marta; Plaza, Jose Antonio; Alcalá Cabrelles, Jorge; Fraxedas Calduch, Jordi; Rodríguez Viejo, Javier (Springer Nature, 2023-01-01)
      Article
      Accés obert
      The understanding of the dynamics of a glass above its devitrification temperature remains incomplete. Here, we build a spatio-temporal map of the relaxation dynamics of a highly stable glass into its supercooled liquid ...

    • Study of crystallization process of Fe65Nb10B25 and Fe70Nb10B20 glassy metals 

      Torrens i Serra, Joan; Bruna Escuer, Pere; Rodríguez Viejo, Javier; Pradell Cara, Trinitat; Clavaguera Mora, Maria Teresa (2007)
      Article
      Accés obert
      The devitrification of the Fe65Nb10B25 and Fe70Nb10B20 metallic glasses produced by melt spinning has been studied by calorimetry (DSC), X-ray diffraction (XRD) and transmission Mössbauer spectroscopy (TMS). Calorimetric ...

    • Ultrastable glasses portray similar behaviour to ordinary glasses at high pressure 

      Rodríguez-Tinoco, Cristian; Gonzalez Silveira, Marta; Barrio Casado, María del; Lloveras Muntané, Pol Marcel; Tamarit Mur, José Luis; Garden, Jean Luc; Rodríguez Viejo, Javier (Macmillan Publishers, 2016-10-03)
      Article
      Accés obert
      Pressure experiments provide a unique opportunity to unravel new insights into glass-forming liquids by exploring its effect on the dynamics of viscous liquids and on the evolution of the glass transition temperature. Here ...