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 20 of 21 for “"metallic substrates"”.
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Development and characterization of cerium oxide coatings deposited by spontaneous processes on metallic substrates
"Spontaneous immersion processes were developed to deposit cerium oxide coatings on aluminum alloy 7075-T6 and copper foils for corrosion protection and as an electrical insulator, respectively"--Abstract, page iv.
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Shock compression and flash-heating of molecular adsorbates on the picosecond time scale
… transitions of molecular adsorbates on metallic substrates during laser-driven shock compression and flash-heating. Adsorbates were in the form of well-ordered self-assembled monolayers (SAMs) and included molecular explosive simulants, such as nitroaromatics, and long chain-length …
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Laser produced SiO2/TiO2 coating on stainless steel substrate with sol-gel processes.
… The sol-gel process has been used to deposit on metallic substrates to increase the corrosion and wear resistance. M. Atik and his colleagues reported that SiO2-TiO2 sol-gel film was deposited on stainless steel (SS 316L) by furnace treatment for corrosion protection. Furnace heating as the …
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Investigation of Mechanical and Antibacterial Performance of Novel Polyaniline (PANI) Coatings via PLD
… polymers with pulsed-laser-deposited (PLD) metallic nanolayers to enhance adhesion, mechanical strength, and antibacterial activity. Conductive polymers such as polyaniline (PANI) offer corrosion protection and electrical conductivity, but their practical applications are limited by poor …
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Design and optimisation of adhesively bonded overlap joints
… industry to join structural components of metallic and composite materials. The most common joint configuration is the lap shear joint, which has been investigated widely and several ideas have been proposed to improve its performance. For example, the introduction of fillets at the overlap …
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Femtosecond Laser Interactions In The Condensed Phase: Application to Transient Absorption and Materials Processing
… for a variety of dielectric, semiconducting and metallic substrates with emphasis on the development of the technique for rapid prototyping of micro-fluidic devices. Some fundamental observations of the ablation mechanisms and residual structures is presented along with results for prototyped …
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Experimental Investigations of the Onset of Sand Deposits on Hastelloy-X between 1000 C and 1100 C
… Characterizing crystalline deposits on metallic substrates can allow for the prediction of deposition to improve component resilience and develop health monitoring algorithms. This work investigates the effect of temperature and angle on sand deposits and attempts to quantitatively …
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Inverse Design of Random Emitters in Nanophotonics
… optimization of air-void cavities in metallic substrates, we show that the LDOS can reach within a factor of ≈ 10 of the upper limits, and within a factor ≈ 4 for the single-polarization LDOS, demonstrating that the theoretical limits are nearly attainable. We then study the more …
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Inorganic-Organic Sol-Gel Derived Hybrid Materials as Abrasion Resistant Coatings
… alkoxide and applied as coatings on polymeric or metallic substrates. Many of these coatings have demonstrated good to excellent abrasion resistance. Abrasion resistant coatings were prepared by hydrolysis and condensation of mixtures of a triethoxysilylated diethylenetriamine (f-DETA), …
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Synthesis and Characterization of Ag and Cu doped DLC Thin Films for Anti-microbial Applications
… high internal stresses and poor adhesion to metallic substrates limit their application. Metal doping, particularly with silver (Ag) and copper (Cu), has been explored to address these issues due to their inherent antimicrobial property and potential to improve adhesion. In this study, Ag and …
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Scalable corrosion resistant coatings for thermal applications
Corrosion of metallic substrates is a problem for a variety of applications. Corrosion can be mitigated with the use of an electrically insulating coating protecting the substrate. Thick millimetric coatings, such as paints, are generally more corrosion resistant when compared to nanoscale …
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Technoeconomic Analysis of Textured Surfaces for Improved Condenser Performance in Thermoelectric Power Plants
… methodologies specifically focused on metallic substrates. The second part of this thesis presents an exhaustive survey on recent advancements and researches about features of nonwetting surfaces that could be implemented in major industrial applications. To establish how realistically …
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Advanced in situ hydrogel assembly for guiding molecular release
… for cells, bioactive molecules, and even metallic nanoparticles, there were extensive efforts to control the rate and direction of embedded molecular release, largely by additional chemical modification of gel-forming polymers. However, these approaches often encountered several challenges …
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Surface chemistry of N-Heterocyclic carbenes and the self-assembly, structure, and properties of polymer metal-organic cage gels
… Allotropes to Modification of Nanoscale and Bulk Substrates In this chapter, we review the development of carbene surface chemistry from its inception through 2015, covering elemental allotrope substrates, nanomaterials, and bulk surfaces, as well as persistent and non-persistent carbenes. We …
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Environmentally friendly hybrid coatings for corrosion protection: silane based pre-treatments and nanostructured waterborne coatings
… the sol-gel coatings as coupling agent between metallic substrates and organic coatings (paints) both a powder coating paint and a cataphoretic coating paint were applied on the silane pre-treated substrates. The electrochemical measurements and the accelerated tests carried out on these …
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Development and characterisation of calcium phosphate glasses and glass-ceramics containing fluorine and titanium
… applications and are limited as coatings to metallic substrates. Calcium phosphate glasses with different types of oxides such as magnesium, [27-28, 30-34] sodium, [14, 36-40] fluorine [41-42] in the presence of titania have been used in research to investigate whether addition of these …
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Growth and characterization of epitaxial graphene films by Molecular Beam Epitaxy
… Chemical Vapor Deposition (CVD) of graphene on metallic substrates and thermal decomposition of SiC are two such efforts in the direction of producing wafer-scale graphene films but none of these techniques are full-proof. While CVD graphene needs to be transferred from a metallic substrate to an …
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Grain boundary networks in RABiTS based YBa2Cu3O7[-delta] coated conductors
… pulsed laser deposition on a biaxially textured metallic substrate. The resulting texture of the YBa2Cu3O7[-delta] film is crucial for the achievement of high critical current densities. A propagation of the granular structure of the metallic substrate into the YBa2Cu3O7[-delta] film was …
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Development and Scaling up of Oxide Buffer Architectures on Flexible Substrates for Efficient and Application-Derived Growth of REBCO Thin Films
… film growth on low-cost, flexible, and scalable metallic substrates is sought for many applications requiring high critical current densities (Jc) with operability over a wide range of magnetic fields of 0–20 T and temperatures of 4.2–77 K. In addition, the growth of high-quality REBCO films on …
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Biomimetic Materials for Biomedical Applications
… II. Deposition of modified calcium phosphates on metallic substrates. Coating with a thin film of calcium phosphates is frequently applied on the surface of metallic implants in order to combine the high mechanical strength of the metal with the excellent bioactivity of the calcium phosphates …
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