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Author | Idrissi, H.; Cordier, P.; Jacob, D.; Walte, N. | ||||
Title | Dislocations and plasticity of experimentally deformed coesite | Type | A1 Journal article | ||
Year | 2008 | Publication | European journal of mineralogy | Abbreviated Journal | Eur J Mineral |
Volume | 20 | Issue | 4 | Pages | 665-671 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Dislocation microstructures have been characterized by transmission electron microscopy in polycrystalline coesite deformed experimentally at 4 GPa, 1200 degrees C. Burgers vectors have been determined by large-angle convergent-beam electron diffraction. Sample orientation was assisted by precession electron diffraction to overcome difficulties arising from pseudo-hexagonal symmetry. The results are explained by using a pseudo-hexagonal setting. We found that most dislocations observed are of the 1/3 < 2 (1) over bar(1) over bar0 > type. No clear glide plane was identified, suggesting that climb is activated under these conditions. This conclusion is supported by the observation of numerous subgrain boundaries. We have also observed some [00011 dislocations. Finally, the C12/cl space group to which coesite belongs being centred, an additional slip system is observed: 1/6[(1) over bar2 (1) over bar3](01 (1) over bar1) (1/2[(1) over bar 10](110) in the monoclinic setting). | ||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Stuttgart | Editor | ||
Language | Wos | 000262891900021 | Publication Date | 2008-08-29 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0935-1221; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.362 | Times cited | 5 | Open Access | |
Notes | Approved | Most recent IF: 1.362; 2008 IF: 1.220 | |||
Call Number | UA @ lucian @ c:irua:94604 | Serial | 733 | ||
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