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3- Ceramic cladding ? (1/3)Introduction – Numerous advantages for SiC f /SiC• Intrinsic properties for SiC– Irradiation resistance– Heat resistance, heat transfer– Thermo-chemical stability– Neutron transparency– Low activation• Main features of SiC/SiC– Non catastrophic failure– Stable mechanical properties up to 1000°C at least– Anisotropic but tailorable properties– Stability under irradiation if appropriate fibersCVI SiC/SiC3 rd generation SiC/SiC(TSA3, Hi-Nicalon S)1 st and 2 nd generation SiC/SiC(Nicalon, Hi-Nicalon)[Jones 2002]CEA, "Science as art " 1st place,MRS Fall meeting 2009Marion LE FLEM, Advanced Materials for Fuel Cladding in Sodium Fast Reactors 22
3- Ceramic cladding ? (2/3)Mechanical properties – SiC f /SiC = Elastic damageable materialNon linear response to thermomechanical sollicitations dependant on the SiCf/SiC (architecture,constituents, type of sollicitation…).3 domains related to damage occurrence in the compositeElestic domainMatrix cracking Fiber ruptureQuestionnable points :Damageable elastic material !cracks, change in propertiesloss of gas-tighness, design ?CMC are challengingmaterials for nuclearapplicationMatrix crackingTensile Test on a minicomposite[El Yagoubi 2011]Guillaumat, LCTS 1994Marion LE FLEM, Advanced Materials for Fuel Cladding in Sodium Fast Reactors 23
Page 1 and 2: ADVANCED MATERIALS FOR FUEL CLADDIN
Page 3 and 4: Introduction - SFR Fuel claddingRef
Page 5 and 6: 1- Advanced Austenitic Steels (1/3)
Page 7 and 8: 1- Advanced Austenitic Steels (3/3)
Page 9 and 10: 2- ODS Steels (2/6)Fabrication - Po
Page 11 and 12: 2- ODS Steels (4/6)Mechanical prope
Page 13 and 14: 2- ODS Steels (6/6)Stability under
Page 15 and 16: 3- Refractory metals (1/7)Introduct
Page 17 and 18: 3- Refractory metals - Vanadium all
Page 19 and 20: 3- Refractory metals - Vanadium all
Page 21: 3- Refractory metals - Vanadium all
Page 25 and 26: 3- Ceramic cladding ? (4/4)Matrix c

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