Planar defects and dislocations in transition-metal disilicides

J 2015

Planar defects and dislocations in transition-metal disilicides

PAIDAR, Václav; M. ČÁK; Mojmír ŠOB a H. INUI

Základní údaje

Originální název

Planar defects and dislocations in transition-metal disilicides

Autoři

PAIDAR, Václav (203 Česká republika); M. ČÁK (276 Německo); Mojmír ŠOB (203 Česká republika, garant, domácí) a H. INUI (392 Japonsko)

Vydání

Intermetallics, Oxford, Elsevier Science Ltd, 2015, 0966-9795

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.541

Kód RIV

RIV/00216224:14740/15:00081238

Organizační jednotka

Středoevropský technologický institut

DOI

https://doi.org/10.1016/j.intermet.2014.11.003

UT WoS

000348626600007

EID Scopus

2-s2.0-84912143875

Klíčová slova anglicky

Intermetallics; Dislocation structure; Planar faults; Ab-initio calculations

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 27. 11. 2015 09:23, Martina Prášilová

Anotace

V originále

The structures of transition-metal disilicides are constituted of different stacking of identical atomic planes at four different positions A, B, C, D: AB in C11(b) structure of e.g. MoSi2, ABC in C40 structure of e.g. VSi2 and ABDC in C54 structure of e.g. TiSi2 disilicides. In comparison with the FCC lattice with the ABC atomic plane stacking along the <111> directions, the occurrence of the fourth position, D, essentially alters the properties of defects and consequently the mechanical properties. The effect of generalized planar defects and their impacts on the dislocation core structures are discussed. In particular, we examine stacking faults and related partial dislocations on the basal planes in different types of disilicides as well as the related twin boundaries and dissociated dislocations. Our analysis of the stacking-fault-like defects is based on the calculations of gamma-surfaces using ab initio methods. Predictions of possible metastable defects in all types of disilicides are reported. (C) 2014 Elsevier Ltd. All rights reserved.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

GA14-22490S, projekt VaV

Název: Struktura, magnetismus a pevnost rozhraní v pokročilých kovových materiálech

Investor: Grantová agentura ČR, Struktura, magnetismus a pevnost rozhraní v pokročilých kovových materiálech

Citovat

PAIDAR, Václav; M. ČÁK; Mojmír ŠOB a H. INUI. Planar defects and dislocations in transition-metal disilicides. Intermetallics. Oxford: Elsevier Science Ltd, 2015, roč. 58, march, s. 43-49. ISSN 0966-9795. Dostupné z: https://doi.org/10.1016/j.intermet.2014.11.003.

@article{1318700,
   author = {Paidar, Václav and Čák, M. and Šob, Mojmír and Inui, H.},
   article_location = {Oxford},
   article_number = {march},
   doi = {https://doi.org/10.1016/j.intermet.2014.11.003},
   keywords = {Intermetallics; Dislocation structure; Planar faults; Ab-initio calculations},
   language = {eng},
   issn = {0966-9795},
   journal = {Intermetallics},
   title = {Planar defects and dislocations in transition-metal disilicides},
   url = {http://ac.els-cdn.com/S0966979514002908/1-s2.0-S0966979514002908-main.pdf?_tid=a54345b6-9413-11e5-bfbf-00000aacb35e&acdnat=1448524960_7fd68515c22eadb9213dfad24a34b3a8},
   volume = {58},
   year = {2015}
}

TY  - JOUR
ID  - 1318700
AU  - Paidar, Václav - Čák, M. - Šob, Mojmír - Inui, H.
PY  - 2015
TI  - Planar defects and dislocations in transition-metal disilicides
JF  - Intermetallics
VL  - 58
IS  - march
SP  - 43-49
EP  - 43-49
PB  - Elsevier Science Ltd
SN  - 09669795
KW  - Intermetallics
KW  - Dislocation structure
KW  - Planar faults
KW  - Ab-initio calculations
UR  - http://ac.els-cdn.com/S0966979514002908/1-s2.0-S0966979514002908-main.pdf?_tid=a54345b6-9413-11e5-bfbf-00000aacb35e&acdnat=1448524960_7fd68515c22eadb9213dfad24a34b3a8
L2  - http://ac.els-cdn.com/S0966979514002908/1-s2.0-S0966979514002908-main.pdf?_tid=a54345b6-9413-11e5-bfbf-00000aacb35e&acdnat=1448524960_7fd68515c22eadb9213dfad24a34b3a8
N2  - The structures of transition-metal disilicides are constituted of different stacking of identical atomic planes at four different positions A, B, C, D: AB in C11(b) structure of e.g. MoSi2, ABC in C40 structure of e.g. VSi2 and ABDC in C54 structure of e.g. TiSi2 disilicides. In comparison with the FCC lattice with the ABC atomic plane stacking along the <111> directions, the occurrence of the fourth position, D, essentially alters the properties of defects and consequently the mechanical properties. The effect of generalized planar defects and their impacts on the dislocation core structures are discussed. In particular, we examine stacking faults and related partial dislocations on the basal planes in different types of disilicides as well as the related twin boundaries and dissociated dislocations. Our analysis of the stacking-fault-like defects is based on the calculations of gamma-surfaces using ab initio methods. Predictions of possible metastable defects in all types of disilicides are reported. (C) 2014 Elsevier Ltd. All rights reserved.
ER  -

PAIDAR, Václav; M. ČÁK; Mojmír ŠOB a H. INUI. Planar defects and dislocations in transition-metal disilicides. \textit{Intermetallics}. Oxford: Elsevier Science Ltd, 2015, roč.~58, march, s.~43-49. ISSN~0966-9795. Dostupné z: https://doi.org/10.1016/j.intermet.2014.11.003.

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