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 5 of 5 for “"laser spallation"”.
-
Interfacial adhesion of thin film high energy density anode materials
… adhesion strength through the technique of laser spallation (LS) combined with finite element analysis (FEA). It was found that the Ni/a-Si interface can withstand at least ~250 MPa in tension before failure is initiated. Tests at higher stress levels were inconclusive due to consistent …
-
Mechanochemical activation at solid interfaces
… are prepared by surface modification. A modified laser spallation setup and finite element scheme are used to analyze energy evolution during dynamic delamination process. The interfacial fracture toughness of the SAM-modified Si-Au interface increases by 86% with the increase in thiol …
-
Molecular tailoring of interfaces for thin film on substrate systems
… modifications on adhesion is assessed using a laser-spallation technique. Laser-induced stress waves are chosen because they dynamically load the thin film interface in a precise, non-contacting manner at high strain rates and are suitable for both weak and strong interfaces. Photodefinable …
-
Dynamic delamination of patterned thin films
… interface. The testing method involves using a laser-induced acoustic stress wave to load the film/substrate fracture plane in tension at very high strain rate (~10^7/s) leading to the inertia-driven interface delamination. A weak adhesive layer is selectively introduced at the interface to …
-
Computational modeling of laser-induced delamination testing of thin films
… that accurately and efficiently characterize it. Laser-induced delamination is a novel technique that uses laser-generated stress waves to load thin films at high strain rates and extract the fracture toughness of the film/substrate interface. The effectiveness of the technique in measuring the …