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Results for “surface roughness”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Surface roughness and finishing techniques in selective laser melted GRCop-84 copper for an additive manufactured lower hybrid current drive launcher
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Influence of spattering on in-process layer surface roughness during laser powder bed fusion
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Numerical analysis of rotating scans’ effect on surface roughness in laser-powder bed fusion
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Interaction of contour and hatch parameters on vertical surface roughness in laser powder bed fusion
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Gustiness in thermally-stratified urban turbulent boundary-layer flows and the influence of surface roughness
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Rough-surface effect on sputtering of Cr bombarded by low-energy He plasma
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Bayesian linear regression for surface roughness prediction
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Extreme ultraviolet microscope characterization using photomask surface roughness
We demonstrate a method for characterizing the field-dependent aberrations of a full-field synchrotron-based extreme ultraviolet microscope. The statistical uniformity of the inherent, atomic-scale roughness of readily-available photomask blanks enables a self-calibrating computational procedure using images acquired under standard operation. We characterize the aberrations across a 30-um field-of-view, demonstrating a minimum aberration magnitude of smaller than λ/21 rms averaged over the center 5-um area, with a measurement accuracy better than λ/180 rms. The measured field variation of aberrations is consistent with system geometry and agrees with prior characterizations of the same system. In certain cases, it may be possible to additionally recover the illumination wavefront from the same images. Our method is general and is easily applied to coherent imaging systems with steerable illumination without requiring invasive hardware or custom test objects; hence, it provides substantial benefits when characterizing microscopes and high-resolution imaging systems in situ.
3D particle transport in multichannel microfluidic networks with rough surfaces
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Soil Surface Roughness in Temperate Forest During SMAPVEX19-22
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Surface roughness noise and comprehensive depth-dependent noise effects on coherence time of NV centers in diamond
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Effects of Microstructure and Surface Roughness on Initiation Behavior in Vapor-Deposited Explosives
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Molecular-level simulations of turbulent Couette flow over rough surfaces
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SECONDARY ELECTRON YIELD MEASUREMENTS OF ENGINEERED SURFACE ROUGHNESS
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