Observation of a novel stacking-fault nucleation mechanism in melt-textured YBa2Cu3O7

Autor:	Jérôme Plain, I. C. Stretton, A. Proult, Felip Sandiumenge, Jacques Rabier
Rok vydání:	2002
Předmět:	Frank-Read Source Materials science Condensed matter physics Plane (geometry) Nucleation Stacking Substructure Mineralogy Dislocation Condensed Matter Physics Overburden pressure Stacking fault
Zdroj:	Philosophical Magazine Letters. 82:419-423
ISSN:	1362-3036 0950-0839
DOI:	10.1080/09500830210148810
Popis:	The dislocation substructure of melt-textured YBa2Cu3O7-Y2BaCuO5 composites deformed under uniaxial compressive stress and a superposed gaseous confining pressure has been investigated by transmission electron microscopy. Observations reveal the generation of perfect dislocations in (001) as well as out of this plane. Screw segments of the latter lying on (001) are seen to act as Frank-Read sources for ⅙ 〈301〉 partials bounding YBa2Cu4O8-type stacking faults, according to a mechanism previously anticipated from theoretical considerations by one of the present authors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::551398fd9347e2615fe6073b5fd17e26 https://doi.org/10.1080/09500830210148810 Zobrazit plný text záznamu Plný text ve formátu PDF