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Electron microscopical investigation...

Rockenhauser, Christian.

Electron microscopical investigation of interdiffusion and phase formation at Gd2O3/CeO2- and Sm2O3/CeO2- interfaces

Record Type:	Electronic resources : Monograph/item
Title/Author:	Electron microscopical investigation of interdiffusion and phase formation at Gd2O3/CeO2- and Sm2O3/CeO2- interfacesby Christian Rockenhauser.
Author:	Rockenhauser, Christian.
Published:	Wiesbaden :Springer Fachmedien Wiesbaden :2015.
Description:	xxiv, 102 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Solid oxide fuel cells.
Online resource:	http://dx.doi.org/10.1007/978-3-658-08793-7
ISBN:	9783658087937 (electronic bk.)

Electron microscopical investigation of interdiffusion and phase formation at Gd2O3/CeO2- and Sm2O3/CeO2- interfaces
Rockenhauser, Christian.

Electron microscopical investigation of interdiffusion and phase formation at Gd2O3/CeO2- and Sm2O3/CeO2- interfaces[electronic resource] /by Christian Rockenhauser. - Wiesbaden :Springer Fachmedien Wiesbaden :2015. - xxiv, 102 p. :ill., digital ;24 cm. - MatWerk. - MatWerk..

Introduction -- Fundamentals -- Experimental Techniques and Instrumentation -- The Gd(x)Ce(1-x)O(2-x/2) System: Phase Formation and Cation Interdiffusion -- The Sm(x)Ce(1-x)O(2-x/2) System: Phase Formation and Cation Interdiffusion -- Summary.

Christian Rockenhauser adresses phase formation and cation interdiffusion of the GdxCe1-xO2-x/2-and SmxCe1-xO2-x/2-material systems at temperatures ranging from 970 to 1270°C. Diffusion couples with CeO2/Sm2O3 and CeO2/Gd2O3 interfaces were fabricated for the investigations. The resulting reaction phases were investigated utilizing transmission electron microscopy (TEM) and allow conclusions regarding the phase diagrams in the examined temperature range. A miscibility gap can be ruled out for GdxCe1-xO2-x/2 across the whole composition range. Cation interdiffusion coefficients were determined for both material systems by measuring and evaluating concentration profiles at the material interfaces. The activation enthalpies for interdiffusion were calculated using the temperature dependence of the interdiffusion coefficients. The study for the first time compiles comprehensively the previous results regarding the phase diagrams of the two material systems since 1923.

ISBN: 9783658087937 (electronic bk.)

Standard No.: 10.1007/978-3-658-08793-7doiSubjects--Topical Terms:

277615
Solid oxide fuel cells.

LC Class. No.: TK2931

Dewey Class. No.: 621.312429

Electron microscopical investigation of interdiffusion and phase formation at Gd2O3/CeO2- and Sm2O3/CeO2- interfaces
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245 1 0 $a Electron microscopical investigation of interdiffusion and phase formation at Gd2O3/CeO2- and Sm2O3/CeO2- interfaces $h [electronic resource] / $c by Christian Rockenhauser.
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505 0 $a Introduction -- Fundamentals -- Experimental Techniques and Instrumentation -- The Gd(x)Ce(1-x)O(2-x/2) System: Phase Formation and Cation Interdiffusion -- The Sm(x)Ce(1-x)O(2-x/2) System: Phase Formation and Cation Interdiffusion -- Summary.
520 $a Christian Rockenhauser adresses phase formation and cation interdiffusion of the GdxCe1-xO2-x/2-and SmxCe1-xO2-x/2-material systems at temperatures ranging from 970 to 1270°C. Diffusion couples with CeO2/Sm2O3 and CeO2/Gd2O3 interfaces were fabricated for the investigations. The resulting reaction phases were investigated utilizing transmission electron microscopy (TEM) and allow conclusions regarding the phase diagrams in the examined temperature range. A miscibility gap can be ruled out for GdxCe1-xO2-x/2 across the whole composition range. Cation interdiffusion coefficients were determined for both material systems by measuring and evaluating concentration profiles at the material interfaces. The activation enthalpies for interdiffusion were calculated using the temperature dependence of the interdiffusion coefficients. The study for the first time compiles comprehensively the previous results regarding the phase diagrams of the two material systems since 1923.
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