5 papers
Oxygen Vacancies at Dislocation Core Modulate Plasticity in Strontium Titanate
Min-Chul Kang, Chunxu Yan, Alexander Frisch +3
Dislocation core chemistry in oxides critically influences mechanical behavior and functionality; yet the evolution of core chemistry during the dislocation motion in them has not…
A data-driven quest for room-temperature bulk plastically deformable ceramics
Iwo SÅodczyk, Alexander Frisch, Xufei Fang +2
The growing number of ceramics exhibiting bulk plasticity at room temperature has renewed interest in revisiting plastic deformation and dislocation-mediated mechanical and functio…
Dislocation response to electric fields in strontium titanate: A mesoscale indentation study
Alexander Frisch, Daniel Isaia, Oliver Preuà +1
Dislocations in perovskite oxides have drawn increasing research interest due to their potential of tuning functional properties of electroceramics. Open questions remain regarding…
Room-temperature dislocation plasticity in ceramics: Methods, Materials, and Mechanisms
Alexander Frisch, Chukwudalu Okafor, Oliver Preuà +5
Dislocation-mediated plastic deformation in ceramic materials has sparked renewed research interest due to the technological potential of dislocations. Despite the long research hi…
Room-temperature bulk plasticity and tunable dislocation densities in KTaO3
Xufei Fang, Jiawen Zhang, Alexander Frisch +4
We report room-temperature bulk plasticity mediated by dislocations in single-crystal cubic KTaO3, contrasting the conventional knowledge that single-crystal KTaO3 is susceptible t…