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Titolo:
Synthesis of CeO2-ZrO2 solid solutions by hydrolysis
Autore:
Hirano, M; Miwa, T; Inagaki, M;
Indirizzi:
Aichi Inst Technol, Dept Appl Chem, Toyota 4700392, Japan Aichi Inst Technol Toyota Japan 4700392 Appl Chem, Toyota 4700392, Japan
Titolo Testata:
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
fascicolo: 5, volume: 109, anno: 2001,
pagine: 401 - 405
SICI:
0914-5400(200105)109:5<401:SOCSSB>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
SC2O3-DOPED ZIRCONIA CERAMICS; POLYMERIZED COMPLEX METHOD; HYDROTHERMAL SYNTHESIS; CERIUM(IV) OXIDE; THERMAL HYDROLYSIS; ELECTRICAL-CONDUCTIVITY; MECHANICAL-PROPERTIES; MONOCLINIC ZRO2; FINE PARTICLES; TEMPERATURE;
Keywords:
hydrolysis; hydrothermal treatment; cerium oxide; zirconium oxide; solid solution;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Hirano, M Aichi Inst Technol, Dept Appl Chem, 1247 Yachigusa,Yakusa Cho, Toyota 4700392, Japan Aichi Inst Technol 1247 Yachigusa,Yakusa Cho Toyota Japan 4700392
Citazione:
M. Hirano et al., "Synthesis of CeO2-ZrO2 solid solutions by hydrolysis", J CERAM S J, 109(5), 2001, pp. 401-405

Abstract

Ceria-zirconia (CeO2-ZrO2) solid solutions were prepared from acidic aqueous solutions of ZrOCl2 and Ce (SO4)(2) .2(NH4)(2)SO4 by hydrolysis under a hydrothermal condition. The morphology, crystallite size, lattice parameter, and lattice strain of the solid solutions changed depending on the composition of the CeO2-ZrO2 system. Spherical agglomeration of primary particleswas one of the distinctive morphological features of solid solution precipitates with cubic and/or tetragonal fluorite structure, their agglomerationsize ranging from 50 to 500 nm, depending on composition. With increasing ZrO2 content, the lattice parameter of the solid solutions decreased and the crystallite size (i.e., primary particle size) of the solid solutions also decreased from 22 to 14 nm. The morphology and crystalline phase of directly formed precipitates in the CeO2-ZrO2 system were greatly influenced by the nature of anion constituent of cerium and zirconium salts.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 16:07:09