Microstructural changes in a neutron-irradiated Fe–15 at.%Cr alloy

Microstructural changes of graphite irradiated with swift heavy ions

Several methods, such as electron microscopy, scanning tunnelling microscopy (STM), X-ray diffraction, and decoration technique can be used to observe radiation damage in materials. In this work, we report microstructural changes and defect clusters induced by swift heavy ions (SHI) on graphite surfaces, visualized by scanning electron microscopy (SEM). Our studies have been performed on fine-g...

Microstructural Evolution of an Ion Irradiated NiMoCrFe Alloy at Elevated Temperatures

The irradiation behavior of a Ni­Mo­Cr­Fe alloy, of the type currently being considered for use in future molten salt cooled reactors, has been investigated in situ using 1MeV Kr ions at temperatures of 723 and 973K. When irradiated to 5 dpa, experimental observations reveal the instantaneous formation and annihilation of point defect clusters, with such processes attributed to the long range e...

A preliminary study on the production of tritium from neutron-irradiated lithium-aluminum alloy.

The release of crude tritium gas from neutron-irradiated LiAI alloy, and the following purification and the trapping of the gas have been preliminary studied to obtain information necessary for the development of tritium technology. The percentages of the fractions of H2(T) and H20(T) occupying about 99% among gaseous species(T) released were largely influenced by pre-irradiation treatment of t...

Initiation and Propagation of Cleared Channels in Neutron- Irradiated Pure Copper and aPrecipitation Hardened CuCrZr Alloy

Fast Neutron Irradiated Magnetite and Haematite Investigated by Neutron Diffraction

In this paper, we present new experimental results about crystallographic and magnetic properties obtained on magnetite Fe,04 and haematite a-FqO, samples irradiated by fast neutrons. Polycrystalline rods were irradiated at 350K by fast neutrons inside the core of Melusine nuclear reactor (CENG) in Grenoble at various fluences (4 lO", 9.2 1019 and 20 10'' neutronslcm~). The irradiated samples h...