不動転位を有するSrTiO₃ナノ単結晶の破壊強度評価

抄録

In order to investigate the effect of sessile dislocation on the fracture strength of nanoscale materials, fracture tests were carried out for nano-scale SrTiO₃ single crystal specimens with an array of sessile dislocations. The fracture strength of the specimens was about 30 % lower than that of a specimen without dislocation array. High resolution transmission electron microscope (HRTEM) observation indicated the fact that the dislocation can be a fracture starting point in nanoscale materials.