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Abstract

The effects of selfradiation damage on microstructure and fracture properties in Cmdoped Ca2Nd8(SiO4)6O2 were investigated. The macroscopic swelling increased exponentially with dose to a saturation value of 8.45%, slightly higher than in previous work with lower density specimens. The radiation induced microstructure consisted of individual amorphous tracks, from both alpharecoil particles and fission fragments, which eventually overlapped to produce a completely amorphous state at 13.1 x 1024 alpha decays/m3. Electronbeamrecrystallization of the amorphous state resulted in the formation of submicron crystallites. The radiationinduced swelling and amorphization increased the fracture toughness.

Additional information

Authors: WEBER W J PACIFIC NORTHWEST LABORATORY, RICHLAND (USA) MATZKE H J JRC KARLSRUHE ESTAB. (GERMANY) , PACIFIC NORTHWEST LABORATORY, RICHLAND (USA);JRC KARLSRUHE ESTAB. (GERMANY)
Bibliographic Reference: MATERIALS LETTERS, VOL. 5(1986), NO. 1,2, PP. 9-16
Record Number: 1989126010000 / Last updated on: 1988-02-01
Category: PUBLICATION