Community Research and Development Information Service - CORDIS

Abstract

Three crystalline ceramic materials, which occur as host phases for the long-lived actinides in many nuclear waste formulations, were doped with 244-Cm, and the effects of self-radiation damage from alpha decay on microstructure and physical properties were investigated. The irradiation induced microstructure consisted of individual amorphous tracks from both the alpha recoil particles and the spontaneous fission fragments. The eventual overlap of the tracks at higher doses leads to a completely amorphous state. This radiation induced amorphization process results in measured increases in volume, leachability, stored energy, and fracture toughness. The initial crystalline states are thermally recoverable with a measured activation energy.

Additional information

Authors: WEBER W J, PACIFIC NORTHWEST LABORATORY, RICHLAND (USA);JRC KARLSRUHE ESTAB. (GERMANY);WALD J W, PACIFIC NORTHWEST LABORATORY, RICHLAND (USA);JRC KARLSRUHE ESTAB. (GERMANY);MATZKE HJ PACIFIC NORTHWEST LABORATORY, RICHLAND (USA), PACIFIC NORTHWEST LABORATORY, RICHLAND (USA);JRC KARLSRUHE ESTAB. (GERMANY);JRC KARLSRUHE ESTAB. (GERMANY), PACIFIC NORTHWEST LABORATORY, RICHLAND (USA);JRC KARLSRUHE ESTAB. (GERMANY)
Bibliographic Reference: SCIENTIFIC BASIS FOR NUCLEAR WASTE MANAGEMENT, BOSTON (USA), NOV. 26-30, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31839 ORA
Availability: Can be ordered online
Record Number: 1989123025300 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en