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Showing 1 to 17 of 17 for “"Average surface roughness"”.
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Curing Characteristics of Photopolymer Resin With Dispersed Glass Microspheres in Vat Polymerization 3D Printing
… and the layer thickness, geometric accuracy, and surface quality of the 3D printed specimen. Dispersing filler material into the photopolymer resin changes its curing characteristics because the filler scatters and absorbs light, which modifies the curing reaction. However, the ability to cure …
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Regulation of lubricin gene expression and synthesis in cartilage by mechanical injury
… articular cartilage starting with the articular surface. The objectives of this study were to quantify the effects of injurious compression on the surface mechanical properties of cartilage, and lubricin gene expression and synthesis using an in vitro organ culture model. Furthermore, the role of …
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Sensor-based Online Process Monitoring in Advanced Manufacturing
… of online, image-based quantification of the surface quality of workpieces produced by cylindrical turning. Representative samples of cylindrical shafts, machined by turning under various conditions, are utilized, and an apparatus is constructed for acquiring images while the part remains …
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A study on laser engraving process parameters and performance characteristics for wood base materials
… the output results which were identified as surface roughness, depth of engraving and Head Affected Zone (HAZ). A second order equation by Response Surface Method (RSM) was used to get the prediction result that was compared with the experimental result. The experimental result showed that …
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Improving surface quality of SLA 3D printed parts via controlled dip-coating
… is often chosen for its relatively high quality surface finish. However, the average surface roughness of SLA 3D printed parts is in the range of 0.4 to 2 [mu], which is relatively rough compared to that of polishing/finishing processes, typically 0.1 to 0.4 gm. Therefore, the objective of this …
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Left Ventricle Assist Device
… phantom. The report highlights the importance of surface roughness for optical clarity, with an average surface roughness of 0.186 μ being ideal for optimal clarity achieved with 800-grit sandpaper. The impact of pressure differences between the aortic and mitral inlet/outlets was also studied, …
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Influence of agglomeration phenomenon in machining of AISI D2 hardened steel using nano chromium powder mixed-EDM
… dielectric liquids impedance, machinability, and surface integrity problems. Also, the additive powder particles played a vital role in this enhancement. Nevertheless, this environment suffers from the powder agglomeration phenomenon, as abnormal behaviour, resulting in the dropping of the …
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Nickel aluminide coating as catalyst in steam methane reforming microreactor
… 304 (SS304) substrate plates with different roughness and DC withdrawal speed has been conducted. Analysis of calcination temperatures on nickel aluminide thin film, followed by characterization of nickel aluminide thin film, then tested with SMR yield were performed. The studied parameters …
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Performance analysis of bioanode materials and the study of the metabolic activity of Rhodopseudomonas palustris in photo-bioelectrochemical systems
… A linear correlation was obtained between average surface roughness/surface area and maximum power density of ITO-coated and graphene/ITO-coated substrates. Graphene/ITO-coated PET bioanodes produced the highest maximum power output of 29±4 μW m-2 in a single chamber BPV device due to …
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Laser surface modification of steel
… presented work is an investigation of the laser surface modification of H13 tool steel using pulse laser processing mode. Initial screening experimental designs conducted lead to more optimised detailed designs. A carbon dioxide (CO2) laser system with 10.6 μm wavelength was used. In the …
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Plonasluoksnių galio nitrido dangų modifikavimas lazerine femtosekundine UV spinduliuote /
… on ablation and on the formation of periodic surface structures. The topographies of the ablated regions were measured with a profilometer (repeatability $\sigma_{n-1} = 12$ nm). The ablated structures were characterized using three variables: ablation depth, ablation efficiency, and average …
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Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness
… index (ARI), and debonded and polished zirconia surface roughness. Methods: Zirconia specimens were milled, glazed, embedded in acrylic resin and the target area microetched with aluminum oxide. Glazed and microetched representative specimens were evaluated with energy dispersive spectroscopy …
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Study of Wear Mechanisms in Braking Systems with HVOF-Coated Discs
… braking systems, two preliminary studies of the surface parameters of the coated discs and of the running-in of the pin-disc system have been performed. The first one was conducted on WC-CoCr coated discs polished with different intensities in order to achieve four different average surface …
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Combined effect of electric field and surface modification on pool boiling of R-123
The effect of surface modification and high intensity electric field (uniform and non – uniform) acting separately or in combination on pool boiling of R-123 is presented in this thesis. The effect of surface modification was investigated on saturated pool boiling of R-123 for five horizontal …
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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
… high-frequency applications because of their low surface resistivity, high-quality factor (Q-factor), and low signal-to-noise ratio (SNR), which are essential for ensuring high-quality signal transmission. This study aims to improve the Jc and processing efficiency of REBCO to support the …
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The effect of the surface condition of Aluminium ingot (AA3003) during roll bonding with clad Aluminium alloy (AA4045) to form an Aluminium brazing material
… the materials are stacked together, they undergo surface preparation. At Hulamin, the surface roughness of the core is kept at 10 µm and the surface roughness of the clad at 1 µm. After surface preparation, the stacked material is put into a hot rolling mill, where it undergoes reduction through …
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Enhancement of Nucleate Boiling on Rough and Dimpled Surfaces with Application to Composite Spreaders for Microprocessors Immersion Cooling
… heated, 10 x 10 x 1.6 mm rough and dimpled Cu surfaces. Fabricating these surfaces is cost effective and scalable, making them suitable for immersion nucleate boiling cooling of high powered microprocessors requiring heat spreaders of different sizes. The PF-5060 has a saturation temperature of …