In Situ Study on the Generation of Radiation Damage in Cubic‐Zirconia in the High‐Voltage Electron Microscope

Deformed cubic‐zirconia single crystals have been irradiated in the high‐voltage electron microscope at room temperature. Prismatic dislocation loops of extrinsic character grow on {111} planes as secondary radiation damage, preferentially along dislocations. At about 200°C, the loops grow much faster and instantaneously transform into dislocations with a a /2〈110〉‐type Burgers vector.