Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Nanoscratch"”.
-
Nanomechanical Properties and Nanowear Characterization of Thin Solid Films and Engineering Surfaces
… determine the shear strength of a material from nanoscratch experiments was analytically derived and the model was validated using finite element analysis. Nanomechanical properties of thin solid films that are related to functional performance, such as shear strength and hardness, were measured …
-
MnO2 Nanoscale Interface Modification
… This adhesion strength can be studied using nanoscratch to find the force needed to cause delamination of the nano-modification. This work will report on the nanoscratch tests on both ZnO and MnO2 nano modifications. Results show a required force of 947 μN to fully delaminate the MnO2 nano …
-
Quantification of bond strength between cementitious materials and microbially-induced calcium carbonate precipitates
… in order to analyze an isolated interface using nanoscratch tests. A low-viscosity epoxy repair system was studied alongside the bio-deposits at both scales to provide a benchmark for comparison. Due to the challenges encountered when analyzing nanoscratch test results for a porous, discretely …
-
Nanoindentation Techniques for the Evaluation of Silicon Nitride Thin Films
… nanoimpact types. Samples were subjected to nanoscratch testing to evaluate the consistency of the critical load of the film. Results showed that there were no significant differences in the mechanical properties of the film across the tested groups. There was a significant difference …
-
An Investigation of Plasma Pretreatments and Plasma Polymerized Thin Films for Titanium/Polyimide Adhesion
… force microscopy (AFM) nanoindentation and nanoscratch testing. A design of experiments (DOE) three factorial model was used to optimize the parameters for oxygen plasma treatments. Oxygen plasma pretreatments enhanced joint strength by cleaning the titanium surface and creating an extended …
-
Dynamic and quasi-static contact and scratch analysis of micro-nanoscale thin solid films with application to magnetic storage hard disk drives
… a full-blown 3D quasi-static FEA-based nanoscratch model of the multilayer thin-film system was also developed. The FEA scratch results were compared to nanoscratch experiments performed on actual magnetic disks. Consequently, the 3D FEA scratch model was used to quantitatively correlate …
-
Hybrid Organic/Inorganic Flexible Structures: Low Temperature Deposition of Silver Conductive Tracks on Flexible Substrates
… ink in relation to curing temperature. Finally, nanoscratch testing showed good adhesion of the cured ink to the PEN substrate. Surface porosity was related to all mechanical and electromechanical testing.;Hybrid organic/inorganic flexible structures allow for the atmospheric deposition of …
-
SYNTHESIS AND CHARACTERIZATION OF ONE-DIMENSIONAL COPPER STRUCTURES
… were evaluated using nanoindentation and nanoscratch tests, respectively. Our results showed that the effective Young's modulus of the Cu NW arrays decreased with their length, possibly due to the early buckling of some Cu NWs caused by their non-uniform length distribution and tilted …