Electron Microscopical Investigation of Interdiffusion and Phase Formation at Gd2O3/CeO2- and Sm2O3/CeO2-Interfaces
Author:   Christian Rockenhäuser
Publisher:   Springer
Edition:   2015 ed.
ISBN:  

9783658087920


Pages:   102
Publication Date:   24 March 2015
Format:   Paperback
Availability:   Manufactured on demand   Availability explained
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Electron Microscopical Investigation of Interdiffusion and Phase Formation at Gd2O3/CeO2- and Sm2O3/CeO2-Interfaces


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Overview

Christian Rockenhäuser 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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Author:   Christian Rockenhäuser
Publisher:   Springer
Imprint:   Springer
Edition:   2015 ed.
Dimensions:   Width: 14.80cm , Height: 0.80cm , Length: 21.00cm
Weight:   1.757kg
ISBN:  

9783658087920


ISBN 10:   3658087927
Pages:   102
Publication Date:   24 March 2015
Audience:   Professional and scholarly ,  College/higher education ,  Professional & Vocational ,  Postgraduate, Research & Scholarly
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand   Availability explained
We will order this item for you from a manufactured on demand supplier.

Table of Contents

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.  

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Author Information

Christian Rockenhäuser studied Physics at the Karlsruhe Institute of Technology (KIT) and the Heriot-Watt University (UK). He investigated solid electrolytes at the Laboratory for Electron Microscopy (KIT) and then joined the Federal Institute for Materials Research and Testing.

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