Browsing Exact and Earth Sciences by Author "Hubler, Roberto"

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    • Corrosion behavior of steel coated with thin film tin/ti composites 

      Hubler, Roberto; Schroer, A.; Ensinger, W.; Wolf, Gerhard K.; Stedile, Fernanda Chiarello; Schreiner, Wido Herwig; Baumvol, Israel Jacob Rabin (1993) [Journal article]
      Thin film multilayered TiN/Ti composites are investigated as a possible alternative for protective coating of steels. Corrosion tests based in cyclovoltametry made in a buffered acetic acid solution reveal that multilayered ...

    • Photoactivity of nanostructured porous Nb2O5 : effect of Pt, Ta, Cu, and Ti impregnation 

      Antonini, Leonardo Marasca; Adamski, Janice; Bernardi, Fabiano; Aguzzoli, Cesar; Hubler, Roberto; Malfatti, Célia de Fraga (2022) [Journal article]
      In the present work, we report the obtaining of nanostructured porous Nb2O5 by anodizing process, with Pt, Ta, Cu, or Ti impregnation, and by magnetron sputtering process. The techniques of scanning electron microscopy, ...

    • Strong dependence of the Fe thin-film magnetic anisotropy on the Si(111) substrate preparation 

      Santos, Mauricio Cougo dos; Geshev, Julian Penkov; Silva, Daniela Kempf da; Schmidt, Joao Edgar; Pereira, Luis Gustavo; Hubler, Roberto; Allongue, Philippe (2003) [Journal article]
      We report on the influence of the Si (111) surface preparation on both the structural and the magnetic properties of iron thin films grown onto them. Two different substrate preparation procedures were used, in one of which ...