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 58 for “"DLC"”.
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DLC Thin Film Assisted ZnO Nanowires Growth
… uniform, vertically aligned ZnO NWs on top of DLC films. The NWs' length, diameter and separation distance were controllable by fine tuning the growth parameters and changing the DLC film deposition temperature. HRTEM examination confirms the NWs were single crystalline with c-axis preferred …
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Si-DLC coatings optimized for low wear and low friction applications.
Diamond-like carbon (DLC) has excellent properties for the use as tribological coating such as high hardness, high wear resistance and a low friction coefficient. Nanolayer systems of hydrogenated diamond-like carbon (a-C:H) and silicon doped hydrogenated diamond-like carbon (Si-DLC or a-C:H:Si) …
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Synthesis and characterisation of DLC and diamond films for gas sensing applications
Over the last decade diamond like carbon (DLC) and diamond films have been extensively studied. These studies were only focused on the synthesis and characterization of this material. DLC films have some unique properties as a semiconductor such as a high elastic modulus, high mechanical hardness, …
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Synthesis and Characterization of Ag and Cu doped DLC Thin Films for Anti-microbial Applications
Diamond-like carbon (DLC) thin films have garnered significant interest for enhancing the lifespan of biomedical implants due to their excellent mechanical and tribological properties. However, high internal stresses and poor adhesion to metallic substrates limit their application. Metal doping, …
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Anti-Adhesive Si-and F-Doped DLC Coatings and Micro-Nanostructured Surfaces for Medical Implants
… aim of this research was to develop a range of DLC coatings and micro-nanostructured surfaces with anti-bacterial properties for biomedical applications. In this study a DLC coating and Si- and F- doped DLC coatings with various Si and F contents were prepared by a radio frequency …
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Dynamic dispatch of direct load control
Direct Load Control (DLC) -- the direct control of customer loads by an electric utility for the economic and reliable operation of the power system, is an important and active element of Load Management (LM). Currently attention has focussed on the integration of DLC into system operations. …
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Towards a universal ultra-thin fluorinated diamond-like carbon coating for nanoimprint lithography imprinters
… of a layer of fluorinated diamond-like carbon (F-DLC) has proven to be a successful anti-adhesion layer but in the past has required an entire diamond-like carbon (DLC) substrate. The requirement that the imprinter be made of DLC limits the imprinter processing and can limit the capabilities of …
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Investigation of Structure and Properties of Low Temperature Deposited Diamond-Like Carbon Films
… method for fabrication of diamond-like carbon (DLC) films on metal substrates. In this work, DLC was electrochemically deposited on different substrates based on an anodic oxidation cyclization of acetylene in liquid ammonia. Successfully anodic deposition was carried out for DLC onto nickel …
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Development and evaluation of anti-biofouling nano-composite coatings
… coatings and modified diamond like carbon (DLC) coatings etc. However these coatings need to be futher improved and optimised in order to get the best anti-biofouling performance. <br/><br/>In this study, a range of novel Ni–P–PTFE-biocide polymer nanocomposite coatings and modified DLC …
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Experimental modelling of surface roughness and dynamic friction coefficient of diamond like carbon coated shafts
Companies that coat their products with DLC often have strict surface roughness and friction coefficient goals. This research investigates the surface roughness and friction coefficient properties of uncoated and DLC coated specimens in an effort to satisfy two particular requirements of the …
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A molecular dynamics study of the tribological properties of diamond like carbon
Diamond like carbon (DLC) is an attractive choice as a coating for mechanical components, because of its excellent wear resistance and very low coefficient of friction . We use molecular dynamics (MD) simulations with a reactive force field (ReaxFF) to study the friction and wear between DLC …
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Design and characterization of diamond-like carbon coated kinematic contacts for improved coupling precision and wear resistance
… This paper introduces diamond-like carbon (DLC) coatings as a means to improve the repeatability of kinematic couplings. Coatings with the help of lubricants have been used in the past to improve the repeatability of kinematic couplings, but DLC coatings offer the opportunity to improve …
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Nanostructured diamond-like carbon by dual pulsed laser ablation-pulsed gas feeding
… in the IR region. These properties make DLC films a good candidate in various applications such as the mechanical, optical, coating magnetic hard dicks, and biocompatibility in the replacement of hip joints, heart valves, stents, as well as zinc sulphide for IR windows. In the present …
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Electrodeposition of Diamond-like Carbon Films
Electrodeposition of diamond-like carbon (DLC) films was studied on different substrates using two different electrochemical methods. The first electrochemical method using a three-electrode system was studied to successfully deposit hydrogenated DLC films on Nickel, Copper and Brass substrates. …
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Comparative analyses of aryl hydrocarbon receptor structure, function, and evolution in marine mammals
… including PCBs and dioxin-like compounds (DLC). Chronic environmental or dietary exposure to these chemicals can disrupt the function of reproductive and immune systems, as well as cause developmental defects in laboratory animals. The aryl hydrocarbon receptor (AHR) is a ligand-activated …
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Development Of Titanium Nitride/molybdenum Disulphide Composite Tribological Coatings For Cryocoolers
… metals (e.g. TiN, ZrN) and diamond-like-carbon (DLC) are potential candidates for cryogenic applications as these coatings have shown good friction behavior and wear resistance at cryogenic temperatures. These coatings are known to have coefficient of friction less than 0.1 at room temperature. …
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Determinants of cns adult neurogenesis are sex, hormones, mouse strain, age, and brain region
… subventricular zone (SVZ), dorsolateral horn (DLC), corpus callosum (CC), and parenchyma. With a short 2 h BrdU pulse, no gender and strain differences are present at 6-8wk. At 6-8mo, the number of BrdU+ cells decreases 2-fold in both sexes, strains and regions indicating a common aging …
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Tření a mazání biomateriálů s modifikací povrchu pro kloubní implantáty
Povrchové úpravy biomateriálů, jako jsou DLC povlaky a mikrotexturování, mohou výrazně prodloužit životnost kloubních náhrad díky zlepšení jejich tribologických vlastností. Mechanické opotřebení třecích ploch je hlavní příčinou selhání implantátů, a proto kombinace vhodných materiálů a povrchových …
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Role of DeltaC and DeltaD in Zebrafish Retinal Development
… specific functions of the Delta ligands, deltaC (Dlc) and deltaD (Dld), in zebrafish retinal development by using dlcb663 and dldtg249 mutant embryos. The retinal expression pattern of dlc and dld, determined by whole-mount in situ hybridization, demonstrated that both ligands have similar and …
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Transformable Discreet Log Contracts
… way is to set up a Discreet Log Contract (DLC) between you and your counter-party. However, this currently have many downsides; for example they are not transferable (i.e. once Alice and Bob sign up for the DLC, they are stuck in the DLC until settlement or they both interactively agree to …
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