Permeability of helium gas of Silicon carbide ceramic composites material, which is one of the most important properties in application of SiC composite for advanced reactors, is studied by using a simple, low-cost test system. The test system can not only qualitatively determine whether the sample is permeable or not, but also quantitatively measure the permeability for the permeable ones by water displacement. The tests are conducted with low pressure in room temperature. The permeability of the SiSiC composite depends on the preparation method. In four flat-plate materials prepared by different processes for the test, the splint based SiSiC and cordierite coated fiber reinforced SiSiC are hermetic, the permeability of uncoated fiber reinforced SiSiC and CVD carbon coated fiber reinforced SiSiC are 0.216cm2/s and 0.109cm2/s, which imply that the permeability is cut in half with the coating. The samples are scanned under SEM to analyze their microscopic structures and verified that the difference of permeability is related to their coatings as well as the pores and cracks.
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2013 21st International Conference on Nuclear Engineering
July 29–August 2, 2013
Chengdu, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5578-2
PROCEEDINGS PAPER
Helium Permeability Measurement of SiC Ceramic Composites for Advanced Reactor Application
Weiqian Zhuo,
Weiqian Zhuo
North China Electric Power University, Beijing, China
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Fenglei Niu,
Fenglei Niu
North China Electric Power University, Beijing, China
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Yungan Zhao,
Yungan Zhao
North China Electric Power University, Beijing, China
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Houbo Qi,
Houbo Qi
North China Electric Power University, Beijing, China
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Zulong Hao,
Zulong Hao
North China Electric Power University, Beijing, China
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Pengfei Hao
Pengfei Hao
Tsinghua University, Beijing, China
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Weiqian Zhuo
North China Electric Power University, Beijing, China
Fenglei Niu
North China Electric Power University, Beijing, China
Yungan Zhao
North China Electric Power University, Beijing, China
Houbo Qi
North China Electric Power University, Beijing, China
Zulong Hao
North China Electric Power University, Beijing, China
Pengfei Hao
Tsinghua University, Beijing, China
Paper No:
ICONE21-15525, V001T02A019; 7 pages
Published Online:
February 7, 2014
Citation
Zhuo, W, Niu, F, Zhao, Y, Qi, H, Hao, Z, & Hao, P. "Helium Permeability Measurement of SiC Ceramic Composites for Advanced Reactor Application." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications. Chengdu, China. July 29–August 2, 2013. V001T02A019. ASME. https://doi.org/10.1115/ICONE21-15525
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