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Copyright © 2017 Xiaotong Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

For High-Temperature Gas-Cooled Reactor in China, fuel particles are bonded into spherical fuel elements by a carbonaceous matrix. For the study of fuel failure mechanism from individual fuel particles, an electrochemical deconsolidation apparatus was developed in this study to separate the particles from the carbonaceous matrix by disintegrating the matrix into fine graphite powder. The deconsolidated graphite powder and free particles were characterized by elemental analysis, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and ceramography. The results showed that the morphology, size distribution, and element content of deconsolidated graphite matrix and free particles were notably affected by electric current intensity. The electrochemical deconsolidation mechanism of spherical fuel element was also discussed.

Details

Title
The Electric Current Effect on Electrochemical Deconsolidation of Spherical Fuel Elements
Author
Chen, Xiaotong; Lu, Zhenming; Zhao, Hongsheng; Liu, Bing; Zhu, Junguo; Tang, Chunhe
Publication year
2017
Publication date
2017
Publisher
John Wiley & Sons, Inc.
ISSN
16876075
e-ISSN
16876083
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1903036961
Copyright
Copyright © 2017 Xiaotong Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.