Thermal shock resistance and hoop strength of triplex silicon carbide composite tubes

Multi‐layered SiC composites have been considered as a nuclear fuel cladding material of light water reactors, LWRs, because of their excellent high temperature strength and corrosion resistance under accident conditions. During a design basis accident of a LWR such as a loss‐of‐coolant accident, th...

Full description

Saved in:
Bibliographic Details
Published in:International journal of applied ceramic technology 2017-11, Vol.14 (6), p.1069-1076
Main Authors: Kim, Daejong, Lee, Donghee, Lee, Sanghwan, Park, Kwangheon, Lee, Hyeon‐Geun, Park, Ji Yeon, Kim, Weon‐Ju
Format: Article
Language:English
Subjects:
Accident conditions
accident tolerant fuel cladding
Accidents
Ceramic fiber reinforced ceramics
composites
Cooling systems
Corrosion resistance
Electronics
Finite element method
Light water
Light water reactors
mechanical properties
Multilayers
Nuclear fuel elements
Nuclear reactors
Residual stress
Shock resistance
Silicon carbide
Stress concentration
Stress distribution
Structural integrity
Thermal resistance
Thermal shock
Tubes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multi‐layered SiC composites have been considered as a nuclear fuel cladding material of light water reactors, LWRs, because of their excellent high temperature strength and corrosion resistance under accident conditions. During a design basis accident of a LWR such as a loss‐of‐coolant accident, the peak temperature of the fuel clad rapidly increases as the production of decay heat continues. The emergency core cooling systems then automatically supply the reactor core with emergency cooling water. The fuel clad consequently suffers from thermal shock. In this study, the structural integrity of multi‐layered SiC composite tubes after thermal shock was investigated. Several kinds of multi‐layered SiC composite tubes consisting of CVD SiC and CVI SiCf/SiC were water‐quenched from 1200°C to room temperature. The triplex SiC composite tube retained its tubular geometry during quenching. The strength degradation after thermal shock was
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.12753