Diffusion of cesium and iodine in compressed IG-110 graphite compacts

作者：Carter L M; Brockman J D^*; Robertson J D; Loyalka S K

来源：Journal of Nuclear Materials, 2016, 476: 30-35.

DOI：10.1016/j.jnucmat.2016.04.024

Nuclear graphite grade IG-110 is currently used in the High Temperature Engineering Test Reactor (HTTR) in Japan for certain permanent and replaceable core components, and is a material of interest in general. Therefore, transport parameters for fission products in this material are needed. Measurement of diffusion through pressed compacts of IG-110 graphite is experimentally attractive because they are easy to prepare with homogeneous distributions of fission product surrogates. In this work, we measured diffusion coefficients for Cs and I in pressed compacts made from IG-110 powder in the 1079-1290 K temperature range, and compared them to those obtained in as-received IG-110.

• 出版日期2016-8-1