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Titolo:
USE OF DIFFUSIONAL CREEP TO INVESTIGATE MASS-TRANSPORT IN (LA, SR)MNO3
Autore:
WOLFENSTINE J; GORETTA KC; COOK RE;
Indirizzi:
UNIV CALIF IRVINE,DEPT CHEM & BIOCHEM ENGN IRVINE CA 92717 ARGONNE NATL LAB,ENERGY TECHNOL DIV ARGONNE IL 60439 ARGONNE NATL LAB,DIV MAT SCI ARGONNE IL 60439
Titolo Testata:
Solid state ionics
fascicolo: 1-2, volume: 92, anno: 1996,
pagine: 75 - 83
SICI:
0167-2738(1996)92:1-2<75:UODCTI>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXIDATION-REDUCTION BEHAVIOR; OXIDE FUEL-CELLS; SR-DOPED LAMNO3; DEFECT STRUCTURE; ELECTRICAL-CONDUCTIVITY; SINGLE-CRYSTALS; LAMNO3+/-DELTA; CHEMISTRY; CERAMICS; MODEL;
Keywords:
LA1-XSRXMNO3; DIFFUSIONAL CREEP; CATION LATTICE DIFFUSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
J. Wolfenstine et al., "USE OF DIFFUSIONAL CREEP TO INVESTIGATE MASS-TRANSPORT IN (LA, SR)MNO3", Solid state ionics, 92(1-2), 1996, pp. 75-83

Abstract

The steady-state creep rate of La1-xSrxMnO3 (x = 0.10, 0.15 and 0.25)decreased with increasing Sr content in a regime where diffusional creep is the dominant deformation mechanism. This composition effect when compared to existing point defect models suggested that the rate-controlling species for mass transport in (La, Sr)MnO3 is lattice diffusion of the cations, either lanthanum or manganese. This is in agreementwith previous creep (based on an activation energy comparison) and sintering results. Diffusional creep can be used effectively to investigate mass transport in (La, Sr)MnO3.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 12:26:25