Dislocation dissociations in C11.sub/sub. MoSi2 and their impact on its plastic deformation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F18%3A00490262" target="_blank" >RIV/68081723:_____/18:00490262 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00490262
Result on the web
<a href="http://dx.doi.org/10.1016/j.intermet.2018.03.003" target="_blank" >http://dx.doi.org/10.1016/j.intermet.2018.03.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.intermet.2018.03.003" target="_blank" >10.1016/j.intermet.2018.03.003</a>
Alternative languages
Result language
angličtina
Original language name
Dislocation dissociations in C11.sub/sub. MoSi2 and their impact on its plastic deformation
Original language description
Using the DFT calculated gamma-surfaces possible metastable stacking faults have been found for the most common slip planes {013) and {110) in MoSi2. These calculations reveal three distinct stacking faults on {013) planes and one stacking fault on {110) plane. Owing to such multiplicity of metastable stacking faults there is a large number of possible dislocation dissociations. These dislocation splittings are analysed using the anisotropic elasticity and relevant stacking faults. The results show that the only dissociations of the < 331] dislocations favoured over the complete undissociated dislocations are on {013) planes either in one or two planes of this type. Splitting into {110) planes are never favoured. For the screw dislocation the dissociations on {013) planes lead to configurations that are sessile and block the dislocations glide in the case of compression along the [001] axis. This explains why for this orientation of compressive axis the single crystals are brittle at ambient temperature but dislocation glide may occur for compressive loading along different, less symmetrical directions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Intermetallics
ISSN
0966-9795
e-ISSN
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Volume of the periodical
97
Issue of the periodical within the volume
Jun
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
34-41
UT code for WoS article
000433016500006
EID of the result in the Scopus database
2-s2.0-85044859710