title: High-voltage electron microscopy of radiation damages in octacalcium phosphate.
abstract: The present high-voltage electron microscopic study showed two types of radiation damages in OCP. The first type commenced with the formation of voids, which later grew and coalesced along the c-axis. The second type was characterized by the appearance of paired and concentric strain fields and the subsequent formation of dislocations. The origin of the strain fields is attributed tentatively to a precipitation of a second phase in the crystal.
mesh_terms: D002130:Calcium Phosphates / Q000528:radiation effects*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003461:Crystallography; D008854:Microscopy, Electron / Q000379:methods; D013696:Temperature
chemical_list: D002130:Calcium Phosphates; C022045:octacalcium phosphate