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Showing 1 to 20 of 33 for “"Film Coatings"”.
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Planar Multilayer Thin Film Coatings for Passive Winter Thermal Management
… of transparent solar energy harvesting coatings for windows can play a major role in reducing energy consumption and fuel costs. In recent years, there has been a great research effort towards designing transparent solar absorber coatings using nanophotonic structures for passive heating …
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Fluorescent Materials and Thin Film Coatings for Temperature Sensing Applications
… Integrating these phosphors into thin film structures is especially valuable for applications involving transparent windows or in scenarios where uniform coatings are needed. Among the various thin film fabrication techniques, e-beam deposition and ion assisted deposition (IAD) offers …
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Nanocomposite of ZrO2/Polymer Thin-Film Coatings by the Ionically Self-Assembled Monolayer Technique
… multilayer structures of zirconia/polymer thin-film coatings have been fabricated on quartz and single-crystal silicon substrates by the Ionically Self-Assembled Monolayer (ISAM) technique. Particle size distribution was measured to calculate the grain diameter of the zirconia particles. UV/Vis …
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CMZP and Mg-doped Al2TiO5 Thin film Coatings for High Temperature Corrosion Protection of Si3N4 Heat Exchangers
… was promoted by the deposition of oxide thin films. Homogeneous and crack-free oxide coatings of calcium magnesium zirconium phosphate (CMZP) and magnesium doped aluminum titanate (Mg-doped Al2TiO5) were successfully deposited on Si3N4 using the sol-gel and dip-coating technique. Coated and …
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I. Solubility and blend studies of nitrocellulose II. Relaxation properties of thin film coatings: the role of surface topography
… of suitable plasticizers for nitrocellulose films. Subsequent dynamic mechanical experiments were then used to evaluate the effectiveness of the blend formulations in broadening the glass transition dispersion of the nitrocellulose blended films; in addition, stress-strain experiments were …
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Enhancing the mechanical and chemical integrity of Ag/ZnO-based transparent and conductive thin film coatings: an atomistic modelling study
… by the observed dewetting of Ag on ZnO. Optical coatings containing these stacks also require them to survive a glass tempering process, during which Ag will rapidly diffuse into the adjacent ZnO layers. These phenomena are undesirable since they may compromise the multilayer’s integrity and a …
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Nanoscale modification of key surface parameters to augment pool boiling heat transfer and critical heat flux in water and dielectric fluids
… on the pool boiling of water, nanoparticle thin-film coatings are applied to nickel and stainless steel substrates using the layer-by-layer assembly method. This study shows that such coatings, with thicknesses on the order of one micron or less, are capable of enhancing the critical heat flux of …
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Corrosion resistant CMZP and Mg-Al2TiO5coatings for SiC ceramics
Thin film coatings of (Cao.6Mg0.4)Zr4(P04)6 (CMZP) and Mg stabilized AhTiOs ( Mg-Ah Ti05 ) on dense SiC substrates were investigated using sol-gel coating techniques. The thickness and quality of both CMZP and Mg-Ah Ti05 coatings were found to depend on the solution concentration and lift rate. …
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Luminescent solar concentrator structures for solar energy harvesting and radiation control
… structures, nano-materials and IR-selective thin-film coatings, to realise stable, long-lifetime and shatterproof clear glass panels. The ability of the proposed semitransparent luminescent solar concentrators to generate electricity addresses the future net-zero-energy building demand [1, 2], …
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Electrostatic Self-Assembly of Biocompatible Thin Films
… for the manufacturing of biocompatible thin film coatings. The ESA process is based on the alternating adsorption of molecular layers of oppositely charged polymers/nanoparticles, and can be applied in the fabrication of well-organized multilayer thin films possessing various biocompatible …
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Self-Assembled Multilayered Dielectric Spectral Filters
Thin film optical filters are made by depositing thin films of optical materials on a substrate in such a way as to produce the required optical and mechanical properties. The Electrostatic Self Assembly (ESA) process is accomplished by the alternate adsorption of poly-anionic and poly-cationic …
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The Application of Thin Film Ionic Self-assembled Multilayer (ISAM) Nanostructures in Electromechanical Bending Actuators and Micro-fabricated Gas Chromatography (uGC) Devices
Ionic self-assembled multilayer (ISAM) thin film nanostructures, including highly porous and conductive gold nanoparticles (GNP), and highly porous and thermally stable silica nanoparticles (SNP), were fabricated via the layer-by-layer (LbL) self-assembly technique. Their application in ionic …
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Chemical Detection and Sensing Using Optical Interferometry
… sensors. Many industrial materials such as coatings and adhesives readily absorb chemical analytes, which may result in changes of their chemical, mechanical, and optical properties. This uptake of volatile organic compounds either from the gas phase or from an aqueous solution into a thin …
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Applications of programmable MEMS micromirrors in laser systems
… presented, also discussing the influence of thin film coatings deposited on the mirror surfaces for further laser output power scaling. The MEMS Q-switch system is furthermore expanded using a micromirror array to create a novel Q-switched laser system with multiple individual controllable output …
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Biomimetic nanostructured surfaces for antireflection in photovoltaics
… from the top surface. Traditional thin film antireflection schemes are being challenged by new techniques that involve texturing on the subwavelength scale to form ‘moth-eye’ arrays, so called because they are inspired by Nature’s answer to unwanted reflections, the arrays of pillars …
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PECVD of silicon and titanium based coatings to enhance the biocompatibility of blood contacting biomedical devices
… In this work, silicon and titanium based thin film coatings with four different surface characteristics were deposited by PECVD on 316L stainless steel substrates. Polymer-like SiOxCyHz, silica-like SiOx, titanium oxide TiO, and silicon-titanium mixed oxide coatings were deposited by plasma …
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Figure correction of thin plate and shell substrates using stress generated by ion implantation
… for the deformation caused by stress in thin film coatings. Thin films, such as those used for mirror coatings, often have non-uniform equibiaxial stress fields. I developed a process to restore the figure of 100 mm silicon wafers that have been deformed by thin metal films, by applying the …
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Synthesis and Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Based Amphiphiles
… been working on POSS-based amphiphiles and thin film coatings. Studies at the air/water (A/W) interface have shown that trisilanol-POSS derivatives are amphiphilic and form uniform Langmuir films, whereas closed-cage POSS derivatives are hydrophobic and aggregate. In this study, two novel POSS …
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Drying Oils Treated by Irradiation as Coatings for Biobased Films
Biobased films are potential food packaging materials. However, their performance with respect to water and gas barrier properties is inferior to current packaging products on market. Drying oils are promising as film coatings to improve water barrier properties of protein-based films. Drying oils …
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Synthesis and Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Based Amphiphiles
… studies has been POSS-based amphiphiles and thin film coatings. Studies at the air/water (A/W) interface have shown that trisilanol-POSS derivatives are amphiphilic and form uniform Langmuir films, whereas closed-cage POSS derivatives are hydrophobic and aggregate. In previous work, a triester …
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