Exploració per tema "Synchrotron radiation"

Ara es mostren els items 12-18 de 18

    • Optimal Sample Preparation for the Analysis of Micrometric Heterogeneous Samples 

      Beltran Sanchidrian, Victòria; Salvadó Cabré, Nativitat; Buti Papiol, Salvador; Cinque, Gianfelice; Wehbe, Katia; Pradell Cara, Trinitat (2015-05-29)
      Article
      Accés obert
      Precise microanalytical techniques are essential in many fields such as cultural heritage materials, showing complex layered microstructures containing a wide range of materials of diverse nature and hardness. Noninvasive ...

    • Performance of high-temperature superconducting REBCO coated conductors under synchrotron irradiation for future circular colliders 

      Krkotic, Patrick; Traver Ramos, Oriol; Tagdulang, Nikki; Calatroni, Sergio; O'Callaghan Castellà, Juan Manuel; Pont Montaner, Montserrat (Institute of Physics (IOP), 2023-10-01)
      Article
      Accés obert
      The influence of medium-to-high energy synchrotron radiation (SR) (˜10–100 keV) produced by the ALBA Synchrotron Light Source on state-of-the-art REBCO coated conductors (CCs) has been studied to assess the feasibility of ...

    • Polyamorphic transitions in Ce-based metallic glasses by synchrotron radiation 

      Duarte Correa, María Jazmín; Bruna Escuer, Pere; Pineda Soler, Eloi; Crespo Artiaga, Daniel; Garbarino, Gaston; Verbeni, Roberto; Zhao, Kun; Wang, Wei Hua; Romero Castro, Aldo Humberto; Serrano Gutiérrez, Jorge (2011-12-01)
      Article
      Accés obert
      We report here on a polyamorphic-phase transition upon application of pressure on a Ce-based metallic glass, Ce70Al10Ni10Cu10, investigated by x-ray diffraction and inelastic x-ray scattering. This alloy is found to display ...

    • Preparation of nanocomposites of poly(epsilon-caprolactone) and multi-walled carbon nanotubes by ultrasound micro-molding. Influence of nanotubes on melting and crystallization 

      Olmo Osuna, Cristian; Amestoy, Hegoi; Casas, Maria Teresa; Martinez, Juan Carlos; Franco García, María Lourdes; Sarasua, Jose-Ramon; Puiggalí Bellalta, Jordi (2017-08-01)
      Article
      Accés obert
      Ultrasound micro-molding technology was successfully applied to prepare nanocomposites based on a poly(e-caprolactone) (PCL) matrix and multi-walled carbon nanotubes (MWCNTs). Optimization of processing parameters (i.e. ...

    • Structure, mechanical properties and nanocrystallization of (FeCoCrNi)-(B,Si) high-entropy metallic glasses 

      Panahi, Seyedeh Leila; Fornell, Jordina; Popescu, Catalin; Pineda Soler, Eloi; Sort Viñas, Jordi; Bruna Escuer, Pere (2022-02)
      Article
      Accés obert
      New high-entropy metallic glasses were produced by adding B and Si to the Fe25Co25Cr25Ni25 high entropy alloy. Extremely hard materials were obtained by inducing structural relaxation and nanocrystallization in the ...

    • Synchrotron radiation studies on even-odd and odd-even nylons 

      Franco García, María Lourdes; Puiggalí Bellalta, Jordi; Ricart López, Albert; Morales Gámez, Laura Teresa; Soto, David (IOP PUBLISHING LTD., 2009-09-08)
      Article
      Accés obert
      Aliphatic polyamides derived from odd diamine or odd dicarboxylic acid units cannot adopt a conventional sheet structure when molecular chains have an all trans conformation. However, typical fiber diffraction patterns of ...

    • Thermally induced structural transitions of nylon 4 9 as a new example of even-odd polyamides 

      Olmo Osuna, Cristian; Casas Becerra, María Teresa; Martínez Guil, Juan Carlos; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2018-02-16)
      Article
      Accés obert
      Crystalline morphology and structure of nylon 4 9 have been studied by means of optical and transmission electron microscopies, and X-ray diffraction. Rhombic crystals were characteristic of crystallization from glycerin ...