Fabrication of Ceramic/vitrified Wasteform Containing Rare Earth Fission Products and its Physico-chemical Property

摘要

In order to fabricate a monolithic wasteform containing RE oxides, vitrification at high temperature or ceramization by HIP method is required. In this study, a series of monolithic wasteform with high waste loadings were successfully produces at mild condition, where the chemical structure was equivalent to the product by high temperature process or a monolithic wasteform consists of durable ceramic host matrix immobilizing RE elements. This study is to find a new solidification route to be applicable to the integrated pyroprocess facilities. In further researches, the properties of newly developed wasteforms will compare with those of other HLW wasteforms.