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Titolo:
PREPARATION OF LA1-XSRXMNO3 LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.6) POWDER BY AUTOIGNITION OF CARBOXYLATE-NITRATE GELS
Autore:
CHAKRABORTY A; DEVI PS; MAITI HS;
Indirizzi:
CENT GLASS & CERAM RES INST,ELECTROCERAM LAB CALCUTTA 700032 W BENGALINDIA
Titolo Testata:
Materials letters
fascicolo: 1-2, volume: 20, anno: 1994,
pagine: 63 - 69
SICI:
0167-577X(1994)20:1-2<63:POLL>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXIDATION-REDUCTION BEHAVIOR; SR-DOPED LAMNO3; LANTHANUM MANGANITE; DEFECT STRUCTURE; ELECTRICAL-CONDUCTIVITY; CATALYTIC PROPERTIES; CITRATE PROCESS; SURFACE-AREA; NONSTOICHIOMETRY; TEMPERATURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
A. Chakraborty et al., "PREPARATION OF LA1-XSRXMNO3 LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.6) POWDER BY AUTOIGNITION OF CARBOXYLATE-NITRATE GELS", Materials letters, 20(1-2), 1994, pp. 63-69

Abstract

Fine powders of Sr-substituted LaMnO3 have been prepared at relatively low temperatures by autoignition of citrate-acetate-nitrate gels. The ignition temperature and the enthalpy change during the combustion vary with strontium content leading to a variation of average particle size in the range 0.3 to 3 mum. As-ignited powders, particularly with less strontium substitution, are amorphous in nature. However, the crystallographic phase becomes either pseudocubic or rhombohedral or orthorhombic depending on the calcination temperature as well as the extent of substitution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 08:59:35