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

H. Garem·J. Rabier·Stephen H. Kirby
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Abstract

Single crystals of Gd 3 Ga 5 O 12 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.

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

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H. Garem, J. Rabier, Stephen H. Kirby. 2006-09-13. Plasticity at crack tips in Gd3Ga5O12 garnet single crystals deformed at temperatures below 950°C. https://doi.org/10.1080/01418618508237568

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