Navegação Ciências Exatas e da Terra por Assunto "Zircônia"

Resultados 1-4 de 4

    • Phase formation in Zr-Fe multilayers : effect of irradiation 

      Motta, Arthur T.; Paesano Junior, Andrea; Birtcher, R.C.; Brückmann, Magale Elisa; Teixeira, Sergio Ribeiro; Amaral, Livio (1999) [Artigo de periódico]
      We have conducted a detailed in situ study of phase formation in Zr–Fe metallic multilayers using irradiation and thermal annealing. Metallic multilayers with near equiatomic and Fe-rich overall compositions and with ...

    • Pressure-induced phase transitions and volume changes in Hf02 up to Gpa 

      Leger, Jean Michel; Atouf, A.; Tomaszewski, P.E.; Pereira, Altair Soria (1993) [Artigo de periódico]
      The phase transformations and pressure-volume dependence of Hf02 have been investigated at room temperature by angle-dispersive powder x-ray diffraction under high pressure to 50 GPa in a diamond anvil cell. The phase ...

    • Pressure-induced structural phase transitions in zirconia under high pressure 

      Leger, Jean Michel; Tomaszewski, P.E.; Atouf, A.; Pereira, Altair Soria (1993) [Artigo de periódico]
      Angular-dispersive x-ray in situ powder-diffraction experiments have been performed on pure zirconia, Zr02, at room temperature under high pressure up to 50 GPa. Under increasing pressure four phases were successively ...

    • Resistance heating of the gasket in a gem-anvil high pressure cell 

      Balzaretti, Naira Maria; Gonzalez, E.J.; Piermarini, Gasper J.; Russell, T.P. (1999) [Artigo de periódico]
      Resistance heating of the gasket strip in a gem-anvil high pressure cell was successful in obtaining sample temperatures up to 1100 °C, under pressures up to 4.0 GPa. The heating capabilities, as well as the mechanical and ...