SANS experiment on superplastic ceramics

V. Ryukhtin

Nuclear Physics Institute ASCR, Řež near Prague, Czech Republic

ryukhtin@ujf.cas.cz

Superplastic (SP) deformation of fine grained materials (FGM) is accompanied by creation of cavities and cracks. Cavitation processes describe quantitatively driving mechanisms such as grain boundary sliding (GBS). Small angle neutron scattering (SANS) can be effectively used for characterization of cavitaion in yittria stabilized zirconia (3Y-TZP) undergoing SP deformation. We would like to present results of pin-hole and double-crystal SANS measurements with treatment and interpretation demonstrating effective description of bulk cavitation. Treatment and fitting of these results will be explained in the followed presentations.