de Oliveira Leo

Jose Rodolpho de Oliveira Leo

Research Student (Full-time)

Bachelor in Mechanical Engineering - Federal University of Minas Gerais (UFMG), Brazil, 2011

I joined the Materials Engineering group at the Open University as a full-time PhD student in January, 2012. The PhD programme is part of the PROMINENT consortium, led by Prof. Michael Fitzpatrick, aimed at addressing issues for advanced nuclear power plants. My research deals with creep response of conventional and oxide-dispersion strengthened (ODS) steels in conditions of stress transients. While creep is a time-dependent plastic deformation experienced by a material at sufficiently high temperature (above 40% of the melting point), the transients of stress (or stress and temperature) may trigger a time-dependent recovery of previously plastic deformation, known as anelasticity. Studying the basic mechanisms behind the materials response requires a multidisciplinary approach, comprised by several techniques, among which Neutron Diffraction, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), etc.

ODS steels are still being regarded as suitable materials for advanced nuclear power plant components and structures, due to the homogeneously distributed nanometric yttrium oxide particles, which have the potential to pin dislocations and, thus, increase creep life. 

My teaching interests cover:

  •          Philosophy of Science
  •         Physical metallurgy
  •         Theory of dislocations

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