1974
DOI: 10.1080/14786437408207254
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Formation and structure of dislocation networks developed during high-temperature deformation of MgO

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Cited by 23 publications
(4 citation statements)
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“…The importance of {100} and {111} as glide planes in our experiments is rather surprising since investigations of slip systems in MgO have identified {110} as the easiest glide plane [e.g., Day and Stokes , 1966; Reppich and Hüther , 1974]. Whereas {100} was found to become more important with higher temperatures, slip on {111} has not been reported in these studies.…”
Section: Discussioncontrasting
confidence: 77%
See 1 more Smart Citation
“…The importance of {100} and {111} as glide planes in our experiments is rather surprising since investigations of slip systems in MgO have identified {110} as the easiest glide plane [e.g., Day and Stokes , 1966; Reppich and Hüther , 1974]. Whereas {100} was found to become more important with higher temperatures, slip on {111} has not been reported in these studies.…”
Section: Discussioncontrasting
confidence: 77%
“…The intracrystalline slip systems in the face‐centered cubic (fcc) structure of periclase (MgO) have been determined in a number of experimental investigations of the deformation behavior of single crystals [ Cass and Washburn , 1966; Hüther and Reppich , 1973; Reppich and Hüther , 1974] and polycrystalline samples [ Day and Stokes , 1966; Bilde‐Sörensen , 1972]. {110}〈10〉 slip is in general the system with the lowest critical resolved shear stress (CRSS), but slip on {100}〈011〉 and {111}〈10〉 appears to become more important at higher temperatures ( T > 0.5 T m ) [ Day and Stokes , 1966; Reppich and Hüther , 1974]. Similar relationships have been found in isostructural halite (NaCl), where the high CRSSs for the {100} and {111} slip planes at low temperatures decrease dramatically with higher temperatures [ Carter and Hansen , 1983].…”
Section: Introductionmentioning
confidence: 99%
“…On the basis of these assumptions the most likely slip systems in our experiments are {110}〈110〉. This is consistent with the work carried out by Hüther and Reppich [10] on periclase single crystal and Stretton et al on polycrystalline aggregates [11]. The initial critical resolved shear stress on {100} is zero, but slip on these planes may be activated upon the development of heterogeneous strain.…”
Section: Discussionsupporting
confidence: 91%
“…Thus, a hexagonal network may be formed from a square cross-grid of dislocations through a process of stress induced climb. 18 In Figure 3, the wall dislocations are formed by the square array. The transition to a hexagonal net is accompanied by the incorporation of glide dislocations (region C) into the boundary, by dislocation knitting mechanisms described above.…”
Section: Processing and Defectsmentioning
confidence: 99%