Synthesis and Analysis of Alpha Silicon Carbide Components for Encapsulation of Fuel Rods and Pellets
Abstract
The chemical, mechanical and thermal properties of silicon carbide (SiC) along with its low neutron activation and stability in a radiation field make it an attractive material for encapsulating fuel rods and fuel pellets. The alpha phase (6H) is particularly stable. Unfortunately, it requires very high temperature processing and is not readily available in fibers or near-net shapes. This paper describes an investigation to fabricate a-SiC as thin films, fibers and near-net-shape products by direct conversion of carbon using silicon monoxide vapor at temperatures less than 1700 C. In addition, experiments to nucleate the alpha phase during pyrolysis of polysilazane, are also described. Structure and composition were characterized using scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. Preliminary tensile property analysis of fibers was also performed.
- Authors:
- Publication Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- DOE - NE
- OSTI Identifier:
- 1032080
- Report Number(s):
- INL/CON-11-21765
TRN: US201202%%2
- DOE Contract Number:
- DE-AC07-05ID14517
- Resource Type:
- Conference
- Resource Relation:
- Conference: ASME 2011 Small Modular Reactors Symposium,Washington, DC,09/28/2011,09/30/2011
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; AMORPHOUS STATE; CARBON; ENCAPSULATION; FABRICATION; FIBERS; FUEL PELLETS; FUEL RODS; NEUTRONS; PELLETS; PROCESSING; PYROLYSIS; RADIATIONS; SCANNING ELECTRON MICROSCOPY; SILICON; SILICON CARBIDES; SPECTROSCOPY; STABILITY; SYNTHESIS; TENSILE PROPERTIES; THIN FILMS; X-RAY DIFFRACTION; Silicon Carbide
Citation Formats
McHugh, Kevin M, Garnier, John E, and Griffith, George W. Synthesis and Analysis of Alpha Silicon Carbide Components for Encapsulation of Fuel Rods and Pellets. United States: N. p., 2011.
Web.
McHugh, Kevin M, Garnier, John E, & Griffith, George W. Synthesis and Analysis of Alpha Silicon Carbide Components for Encapsulation of Fuel Rods and Pellets. United States.
McHugh, Kevin M, Garnier, John E, and Griffith, George W. 2011.
"Synthesis and Analysis of Alpha Silicon Carbide Components for Encapsulation of Fuel Rods and Pellets". United States. https://www.osti.gov/servlets/purl/1032080.
@article{osti_1032080,
title = {Synthesis and Analysis of Alpha Silicon Carbide Components for Encapsulation of Fuel Rods and Pellets},
author = {McHugh, Kevin M and Garnier, John E and Griffith, George W},
abstractNote = {The chemical, mechanical and thermal properties of silicon carbide (SiC) along with its low neutron activation and stability in a radiation field make it an attractive material for encapsulating fuel rods and fuel pellets. The alpha phase (6H) is particularly stable. Unfortunately, it requires very high temperature processing and is not readily available in fibers or near-net shapes. This paper describes an investigation to fabricate a-SiC as thin films, fibers and near-net-shape products by direct conversion of carbon using silicon monoxide vapor at temperatures less than 1700 C. In addition, experiments to nucleate the alpha phase during pyrolysis of polysilazane, are also described. Structure and composition were characterized using scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. Preliminary tensile property analysis of fibers was also performed.},
doi = {},
url = {https://www.osti.gov/biblio/1032080},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2011},
month = {Thu Sep 01 00:00:00 EDT 2011}
}