Sentence examples for hardness impression from inspiring English sources
The hardness impression shown in Figure 5(h) exhibits both extensive fracture and twinning.
During compression testing, the particle produces a hardness impression before it fractures.
Hardness measurements are presented in Table 1 and a typical hardness impression is shown in Figure 5 e).
The shape of the plastic hardness impression formed during indentation determines the geometrical form of this effective indenter shape.
However at loads greater than 35 g, the deterioration in the hardness impression due to severe cracking made accurate measurements of VHN impossible.
The elastoplastic surface deformations of the composites are characterized in term of the elastic modulus E′, contact hardness H, and the relative residual depth ξr of hardness impression.
The resulting VHNs when using a load of 15 g are presented in Table 1 and examples of the resulting hardness impressions in Figure 1.
Examination of the regions surrounding unetched and etched Vickers hardness impressions shows that deformation occurs by an extremely complex mechanism involving dislocation slip, twinning and fracture.
Thus at heavier loads, the dimensions of the hardness impressions and their associated deformation features are proportionately larger, but otherwise identical.
Traces of slip planes and cracks formed at hardness impressions in (210) and (001) cleavage surfaces were analyzed on a stereographic projection basis.
Effects of indenter angle, maximum load, and loading/unloading rate are systematically characterized from nanoindentation load displacement data in conjunction with micro-Raman imaging spectroscopy of the residual hardness impressions.
