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Full-Text Articles in Physical Sciences and Mathematics
Cross-Linked Pdms Expansion Due To Submersion In Liquid And Supercritical Co2, Teng Yang
Cross-Linked Pdms Expansion Due To Submersion In Liquid And Supercritical Co2, Teng Yang
Graduate Theses and Dissertations
Characterization of micro/nano-copper particles impregnated Polydimethylsiloxane (PDMS) submersed in supercritical carbon dioxide (scCO2) was studied. The purpose of this investigation was to advance micro-corrosion sensor technology utilizing PDMS and micro-metal particle composite as the sensing element currently under-development. One of the key challenges encountered was the removal of the native oxides inherently existing on the metal particles. Numerous techniques were experimented with to counter this problem at the UA Engineered Micro/Nano Systems Laboratory (EMNSL), with swell-based protocols being identified as the most promising solution. In terms of compatibility to Micro-electro-mechanical Systems (MEMS) fabrication, CO2 is often used in the release …
Organic Materials As Templates For The Formation Of Mesoporous Inorganic Materials And Ordered Inorganic Nanocomposites, Christopher Ryan Ziegler
Organic Materials As Templates For The Formation Of Mesoporous Inorganic Materials And Ordered Inorganic Nanocomposites, Christopher Ryan Ziegler
Open Access Dissertations
Hierarchically structured inorganic materials are everywhere in nature. From unicellular aquatic algae such as diatoms to the bones and/or cartilage that comprise the skeletal systems of vertebrates. Complex mechanisms involving site-specific chemistries and precision kinetics are responsible for the formation of such structures. In the synthetic realm, reproduction of even the most basic hierarchical structure effortlessly produced in nature is difficult. However, through the utilization of self-assembling structures or "templates", such as polymers or amphiphilic surfactants, combined with some favorable interaction between a chosen inorganic, the potential exists to imprint an inorganic material with a morphology dictated via synthetic molecular …