Abstract:Abstract. Zircaloy-4 has been oxidised in dry and wet air (15 vol.% H 2 O) at 700 °C. At high temperature and at room temperature X-Ray diffraction shows that the oxide scale is composed of monoclinic zirconia (m-ZrO 2 ) and quadratic zirconia q-ZrO 2 . In dry and wet air, growth stress is determined in situ at 700 °C on the m-ZrO 2 . In dry air, results show that the compressive growth stress in the oxide oscillates between -1300 ±100 MPa and -600 ±100 MPa. In wet air, compressive growth stress varies from -1… Show more
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