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.
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Showing 1 to 11 of 11 for “"chemomechanics"”.
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Chemomechanics of self-oscillating gels
Biological materials such as cardiac and skin tissue exhibit the unique capacity to transduce mechanical stimuli into propagating electrical and chemical signals throughout the body. Few synthetic materials have been engineered to produce communicative chemical signals in response to mechanical …
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Chemomechanics with a molecular force probe
Chemomechanics is an emerging area at the interface of chemistry, materials science, physics, and biology that aims at quantitative understanding of reaction dynamics in multiscale phenomena. These are characterized by correlated directional motion at multiple length scales—from molecular to …
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Chemomechanics of attached and suspended cells
… that no one existing model can describe cell chemomechanics. However, the cell can be usefully described as a material -- one in which animate mechanisms such as active contraction will generally, but not invariably, need to be considered as augmenting existing viscoelastic theories of …
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Chemomechanics of non-stoichiometric oxide films for energy conversion
Electrochemical energy conversion and storage devices including solid oxide fuel cells (SOFCs) and lithium ion batteries (LIBs) are enabled by materials known as "non-stoichiometric oxides" that contain large concentrations of point defects such as oxygen or lithium vacancies. While this …
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Chemomechanics at cell-cell and cell-matrix interfaces critical to angiogenesis
The ability to characterize and control cellular responses in vitro has far reaching implications for basic science and applied medical research. For well over 125 years, researchers have studied the behavior of biological cells under in vitro conditions where rigid glass or plastic Petri dishes …
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Chemomechanics at the cell-material interface : measurements and implications of forced molecular unbinding
The main goal of this thesis is to study the coupled interactions between chemically and mechanically characterized materials and cells that are relevant to microvascular physiology and pathology. In particular, the mechanical characterization of cell surface structure and force generation are …
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Multiscale chemomechanics of polymer deformation under contact : predicting structure-property correlations from the bulk to the interphase
The development of nanoscale polymeric materials for mechanical applications necessitates advances in small-volume experimental techniques and analyses that reflect the viscoelastoplastic behavior of such materials. In this thesis, the time-dependence and response of homogeneous engineering …
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Chemomechanics of calcium leaching of cement-based materials at different scales : the role of CH-dissolution and C-S-H degradation on strength and durability performance of materials and structures
Calcium leaching is a durability threat for cement-based materials employed in critical infrastructures, such as Nuclear Waste Storage Systems. This thesis presents a comprehensive study of the material and structural consequences of calcium leaching on the strength and deformation behavior of …
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Statistical nano-chemo-mechanical assessment of shale by wave dispersive spectroscopy and nanoindentation
… experiments as a means to assess the nanochemomechanics of shale rocks. The similar microvolumes probed by both methods ensure a direct relation between the local chemistry and mechanics response of shale materials. The results of this investigation showed that the grid WDS technique …
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Chemomechanical modeling of hydrogen-induced degradation at high temperatures
Degradation of structural materials by hydrogen gas at high temperatures poses serious challenges to the safety of hydrogen technologies operating at elevated temperatures such as solid oxide fuel and electrolyser cells, hydrogen gas turbines, etc. The objective of this dissertation is to develop …
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A quantitative and predictive model for mechanochemical kinetics and its experimental validation
The fact that the application of mechanical force to materials can change the reactivity of their constituent molecules (or ions) has been known for millennia, but the complexity of these multi-scale phenomena limited their partial explanation to the theoretical until the advances in …