Indentation size effect in nanohardness

Nanomechanical behavior of yttria stabilized zirconia (YSZ) based thermal barrier coating

“…As the indentation depth is directly related to the applied indentation load, hence, the reported data on the hardness and Young's modulous are probably taken at a higher applied load. The observed differences between the reported literature values and the same obtained in the present investigation are mainly attributed to the use of lower indentation load in the present study and the phenomenon of "Indentation size effect"[32]. The hardness and Young's modulous value measured using the similar level of load for comparison are not however, available in the literatures.Fig.…”

Consolidation of different hydroxyapatite powders by SPS: Optimization of the sintering conditions and characterization of the obtained bulk products

“…13(a), the micro-hardness of the HAp sintered bodies slightly decreases when the applied load rises from 0.5 to 2.0 N, as a result of the well-known Indentation Size Effect (ISE) [25]. The local elastic modulus, instead, is less sensitive to the applied load, especially for the HAp_1 and HAp_2 samples, as shown in Fig.…”

Nanomechanical Behavior of CoCrFeMnNi High-Entropy Alloy

“…[39][40][41][42] Several models have been developed to explain the depth dependence of hardness in nanoindentation. [43][44][45] Nix and Gao 43 have explained the experimental trend considering geometrically necessary dislocations (GNDs). GNDs form to accommodate lattice curvature from nonuniform plastic deformation.…”