Ceramic breeder materials

MEDICAL USE OF CERAMIC MATERIALS

Ceramic Laser Materials

Ceramic laser materials have come a long way since the first demonstration of lasing in 1964. Improvements in powder synthesis and ceramic sintering as well as novel ideas have led to notable achievements. These include the first Nd:yttrium aluminum garnet (YAG) ceramic laser in 1995, breaking the 1 KW mark in 2002 and then the remarkable demonstration of more than 100 KW output power from a YA...

Hydroxyapatite based ceramic materials

Hydroxyapatite is the major mineral component of human bones. From the point of view of its chemistry, it is calcium orthophosphate which has in its structure hydroxyl groups and in its stoichiometric is described with formula – Ca10(PO4)6(OH)2. Biological properties of hydroxyapatite are very favorable; it is not only biocompatible (which means that after implantation it causes no side effects...

Numerical simulation of ceramic breeder pebble bed thermal creep behavior

The evolution of ceramic breeder pebble bed thermal creep deformation subjected to an external load and a differential thermal stress was studied using a modified discrete numerical code previously developed for the pebble bed thermomechanical evaluation. The rate change of creep deformation was modeled at the particle contact based on a diffusion creep mechanism. Numerical results of strain hi...

Analysis of thermomechanical interactions and properties of ceramic breeder blankets

Analysis of the thermomechanical interactions of fusion blanket materials and physical elements, particularly those involving particle bed design concepts, have been performed. The results show that the stress caused by the high thermal expansion of the blanket particle bed material is not excessive enough to be of concern for the structural material. However, its magnitude could lead to cerami...