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Titolo:
Strain-induced symmetry breakdown in HOLZ lines from L1(2) titanium tri-aluminides
Autore:
Rossouw, CJ; Tsuda, K; Forwood, CT; Gibson, MA; Tanaka, M;
Indirizzi:
CSIRO, Mfg Sci & Technol, Clayton, Vic 3169, Australia CSIRO Clayton Vic Australia 3169 & Technol, Clayton, Vic 3169, Australia Tohoku Univ, Sci Measurements Res Inst, Aoba Ku, Sendai, Miyagi 9800812, Japan Tohoku Univ Sendai Miyagi Japan 9800812 Ku, Sendai, Miyagi 9800812, Japan
Titolo Testata:
JOURNAL OF ELECTRON MICROSCOPY
fascicolo: 5, volume: 49, anno: 2000,
pagine: 589 - 598
SICI:
0022-0744(2000)49:5<589:SSBIHL>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
PATTERNS;
Keywords:
titanium tri-aluminides; lattice strain; HOLZ symmetry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Rossouw, CJ CSIRO, Mfg Sci & Technol, Private Bag 33, Clayton, Vic 3169, Australia CSIRO Private Bag 33 Clayton Vic Australia 3169 169, Australia
Citazione:
C.J. Rossouw et al., "Strain-induced symmetry breakdown in HOLZ lines from L1(2) titanium tri-aluminides", J ELEC MICR, 49(5), 2000, pp. 589-598

Abstract

Energy filtered CBED patterns of the Cr-stabilized Lit phase of a titaniumtri-aluminide alloy reveal deficit higher order Laue zone (HOLZ) lines in the zeroth order diffraction disk, for which the expected 4-mm symmetry is significantly broken in the < 001 > projection. This apparent break of symmetry may be explained by the presence of lattice strains of order 10(-3). Effects of strain-induced lattice distortions on HOLZ line symmetries are calculated by an introduction of rhombohedral, tetragonal or monoclinic distortions to the cubic unit cell. It is shown how tensile and shear componentsof strain affect the overall HOLZ line symmetries in different ways.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 02:21:47