Plasticity at crack tips in Gd3Ga5O12 garnet single crystals deformed at temperatures below 950°C

Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
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Abstract

Single crystals of Gd3Ga5O12 have been strained under confining pressure (1 5 GPa) at temperatures below 950°C. No evidence for macroscopic plasticity was found, but transmission electron microscopy revealed dislocation generation at crack tips. Deformation mechanisms are different from those operating in the high-temperature regime: extending stacking faults in {110} planes and the 〈010〉{100} glide system were observed. Dissociations of a/4〈111〉 partial dislocations were also observed.

Publication type Article
Publication Subtype Journal Article
Title Plasticity at crack tips in Gd3Ga5O12 garnet single crystals deformed at temperatures below 950°C
Series title Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
DOI 10.1080/01418618508237568
Volume 51
Year Published 1985
Language English
Publisher Taylor& Francis Online
Contributing office(s) Earthquake Science Center
Description 12 p.
First page 485
Last page 496
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