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Three nuclear waste glasses have been produced with contents of 0.5 and 1.5 wt.% Cm-244, which is a short-lived actinide (half-life 18.1 years). In this way, significant amounts of radiation damage can be accumulated in a relatively short time, and saturation damage is achieved after a few years of storage. Vickers indentations were made at different damage levels. Both the probability of crack formation and the length of cracks decreased with increasing damage level, corresponding to very significant increases in K(Ic), by up to 100%. Indentation techniques are thus shown to be the ideal means to obtain statistically significant results on a very limited number of specimens.

Additional information

Authors: MATZKE H, JRC Karlsruhe (DE);TOSCANO E, Centro Ceramico Bologna, Bologna (IT)
Bibliographic Reference: Paper presented: Second International Workshop on Indentation Techniques in connection with 7th SIMCER, Bologna (IT), Dec. 13-16, 1988
Availability: Available from (1) as Paper EN 34394 ORA
Record Number: 199010914 / Last updated on: 1994-12-01
Original language: en
Available languages: en