Book Description

A high voltage electron microscope (HVEM) was used to investigate the nature of intrinsic point effects in a-Zirconium by direct observation of dislocation climb and cavity growth or shrinkage. The material used was Marz-grade zirconium that had been pre-irradiated with neutrons at 740 K in the Dounreay Fast Reactor. Dislocation loops of vacancy character that were produced during the neutron irradiation were studied by further irradiation with electrons in the HVEM. C-component network dislocations and cavities were also studied.