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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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