BROWSE

Related Researcher

Author's Photo

Sohn, Dong-Seong
Innovative Nuclear FUEL(INFUEL)
Research Interests
  • Nuclear fuel design
  • Nuclear fuel
  • Nuclear system
  • Performance analysis

ITEM VIEW & DOWNLOAD

Multi-layer coating of silicon carbide and pyrolytic carbon on UO2 pellets by a combustion reaction

Cited 38 times inthomson ciCited 37 times inthomson ci
Title
Multi-layer coating of silicon carbide and pyrolytic carbon on UO2 pellets by a combustion reaction
Author
Kim, BGChoi, YLee, JWLee, YWSohn, Dong-SeongKim, GM
Issue Date
2000-10
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF NUCLEAR MATERIALS, v.281, no.2-3, pp.163 - 170
Abstract
The coating layers of silicon carbide and pyrolytic carbon on UO2 pellets were prepared by using a combustion reaction between the carbon and silicon layers. The pyrolytic carbon and silicon were deposited by thermal decomposition of propane at 1250°C in a chemical vapor deposition unit and microwave pulsed electron cyclotron resonance plasma enhanced chemical vapor deposition (ECR PECVD) using silane at 500°C. Microstructural observation of the layers with scanning electron microscopy (SEM) showed that an inner layer existed following the surface contour of the pellet and the outer layer had a small number of fine pores inside. Chemical analyses with Auger electron spectroscopy (AES) and X-ray diffractometry (XRD) revealed that the inner and outer layers were pyrolytic carbon and silicon carbide, respectively. From the transmission electron microscopy (TEM) observation, the silicon carbide formed during the combustion reaction was identified as fine crystalline β-SiC. The temperature distribution of the specimen during the combustion reaction was estimated by a finite element method, which showed that preheating above 1300°C was required for the combustion reaction between silicon and carbon to propagate well through the specimen.
URI
https://scholarworks.unist.ac.kr/handle/201301/6200
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0000276536
DOI
10.1016/S0022-3115(00)00365-2
ISSN
0022-3115
Appears in Collections:
NUE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU