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Structure and oxygen stoichiometry of phases in La-Pr-O system

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UNSPECIFIED (1998) Structure and oxygen stoichiometry of phases in La-Pr-O system. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 52 (2-3). pp. 162-168.

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Abstract

Citrate gel method has been employed to produce homogeneous mixed rare-earth oxides in La2-xPrxO3+y (0 less than or equal to x less than or equal to 2) system. The phases obtained at 1473 K in static air have been characterised for the entire range of compositions for their crystal structure. Hexagonal structure is stable for 0 less than or equal to x less than or equal to 0.6 whereas cubic fluorite phase is stable for 1 less than or equal to x less than or equal to 2. The unit cell parameters are reported for the range of single phase compositions. Wet-chemical analysis reveals that the compositions adopting hexagonal structure are stoichiometric (y=0) whereas the compositions crystallising in the fluorite structure have the y increasing from 0.33 to 0.66 as x is varied from 1 to 2. (C) 1998 Elsevier Science S.A. All rights reserved.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
Journal or Publication Title: MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
Publisher: ELSEVIER SCIENCE SA
ISSN: 0921-5107
Official Date: 3 April 1998
Dates:
DateEvent
3 April 1998UNSPECIFIED
Volume: 52
Number: 2-3
Number of Pages: 7
Page Range: pp. 162-168
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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