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Showing 1 to 8 of 8 for “"mismatch-strain"”.
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Analytical and numerical studies on mismatch strain related problems
… analytical, numerical, and experimental study on mismatch strain related problems. Three problems are analyzed: self-assembling of polymer thin film, failure of nanotube and nanorod silicon anodes in lithium batteries and modified failure criterion for earthquake distribution along the earth …
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Mechanics Analysis of Semiconductor Nanotube Formation Driven By Residual Mismatch Strain
… residual stress in the system due to a lattice mismatch between each layer as the driving force for formation from a flat plate into a tube. A recent technique utilizing a photolithographic patterning process has allowed for large scale manufacturability of these tubes. However, when large scale …
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Monolithic heteroepitaxial integration of III-V semiconductor lasers on Si substrates
… substrates. The large thermal expansion mismatch between Si, Ge, and GaAs introduces additional strain to integrated device layers on Ge/GeSi/Si substrates grown at high temperatures. This study conclusively demonstrated the link between thermal mismatch strain and increased misfit …
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Structural and thermal properties of graphene - boron nitride superlattice
… and largely complicated by the ∼ 2% lattice mismatch between the two materials. This work provides an in-depth view of the possible interfacial structures in C-BN superlattices, and quantifies their effect on the thermal conductivity. The equilibrium structures are predicted using atomistic …
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De-wrinkling of cellulosic barrier materials coated on paper during scale-up on a roll-to-roll system
… wrinkling instability could arise because of the mismatch strain between film and substrate, paper swelling, and external forces such as constrained edges during the coating and drying processes. This instability leads to surface buckling, which minimizes the total energy. Such instability of …
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Structural and Electromagnetic Study of Heavily Doped ZR-Added REBCO Coated Conductors Fabricated by Reel-To-Reel MOCVD
… of REBCO c-axis lattice parameter on the elastic mismatch strain as well as the internal strain in the REBCO matrix surrounded by BZO nanocolumns was investigated. At the same time, the effects of REBCO c-axis lattice parameter on the self-field Jc at 77 K and the in-field Jc at 30 K in applied …
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Nanostructured BaTiO3 Thin Films for Enhanced Photoresponse
… BTO/SrRuO3 (SRO) heterostructure. The large mismatch strain at interfaces induced the formation of island-like SRO nanostructures. The crystalline and amorphous phases in the BTO layer were responsible for charge separation and transportation, respectively. In addition, the SRO with periodic …
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Battery interfaces in the face of machine learning and artificial intelligence
… resulting in phase heterogeneity and detrimental strain fields that lower ion diffusivity. We showed that a weak thermodynamic driving force for phase transformation and unfavorable increases in mismatch strain at grain boundaries can inhibit the nanoparticles from complete phase transformation. …