SICANA@ - BORON-FREE SSiC
[Silicon Carbide for Advanced Nuclear Applications]
SICANA@ is a boron-free pressure less sintered dense silicon carbide. It has been developed preferably as cladding material for nuclear fuel elements. Boron – normally used in standard SiC composition as sintering additive – was substituted for reasons of neutron economy in in-core applications and prevention of radiation damages in the SiC itself.
SICANA@ is intended to substitute the metal zircaloy, commonly applied today as cladding material of nuclear fuel, in order to avoid generation of hydrogen in the event of a loss-of-coolant-accident (LOCA).
|Density:||> 3.10 g/cm3|
|Young’s Modulus:||450 GPa|
|Bending strength:||500 MPa at 20°C
600 MPa at 1500°C
|Vickers hardness:||25 GPa at 5 N loads|
|Coefficient of linear thermal expansion:||4.5*10-6 K-1|
|Crystal size:||< 2-5 µm|
Temperature-, thermal shock-, oxidation- and corrosion resistance are very high.