Nanoindentation tests for TiO2, MgO, and YSZ single crystals

Mechanical properties of the hexagonal HoMnO3 thin films by nanoindentation

“…Table 1 displays the mechanical properties (hardness and Young's modulus) of HMO thin film and YSZ single crystals for comparison. 1 1) 19.5 ± 0.6 a 235.6 ± 5.2 a 14.8 ± 0.9 [15] 214 ± 9 [15] 15.3 ± 1.3 [16] 256.2 ± 13.3 [16] a This present study.…”

Reduced hardness at the onset of plasticity in nanoindented titanium dioxide

“…Measuring the curvature of the experimental curve F vs h leads directly to an estimation of H. Note that, when compared to our data reported here, these works involve much deeper penetrations, which are likely to probe the bulk of the sample. The values obtained for this hardness well into the bulk, which we shall call H B , are around 13 GPa, 14 about a factor of 3 larger than the value that we have obtained for H o in nanoindentations involving small penetration volumes.…”

“…The term C / h can be physically understood in terms of a moderate indentation size effect ͑ISE͒. 22 Using the above expressions, the extrapolated hardness H o can be esti- Indentation of oxides has been performed in earlier work 14,[23][24][25] in order to probe their mechanical properties. Most of these studies could be regarded as microindentations-although, at times, they self-nominate themselves as nanoindentations-their penetrations extending well into the micrometer range.…”

Modification of thermal barrier coating architecture by in situ laser remelting

“…The measured Young's modulus of the as-sprayed Y-PSZ was 259 ± 11 GPa. This value is in accordance with experimental values published in, 18,34,35 which are 206, 237 ± 12 and 250 ± 20 GPa, respectively. A little increase in Young's modulus of about 10% can be noticed after in situ laser treatment.…”