Results 21 to 30 of about 441,291 (286)
Frontiers in Earth Science, 2023 Calcite cement is widely existing in sandstones and can significantly affect the elastic and electrical properties of sandstones. Accordingly, understanding the effects of calcite cement on the elastic and electrical rock properties is of key importance ...
Pan Wang +4 more
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PRODUCTION OF COMPOSITE CERAMIC MATERIAL FOR THERMAL SPRAYING
Наука и техника, 2017 A composite ceramic material has been developed for thermal spraying that permits to increase wear resistance due to introduction of high-chromium steel and molybdenum in its structure, to obtain optimum porosity in the starting charge material while ...
V. A. Okovity +3 more
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Porosity imaging in porous media using synchrotron tomographic techniques [PDF]
, 2004 This paper describes novel uses of synchrotron radiation in examining porosity distributions within porous media. Tomographic energy dispersive diffraction imaging and Tomographic X-ray fluorescence have been combined within one measurement method and ...
Atkinson, Tim +8 more
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The Assessment of Level of Flash Floods Threat of Urbanised Areas
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017 Flash floods (or torrential rain flooding) is another type of flood hazard which has caused casualties and significant property damages. A methodology for identification of urban areas, which can potentially be burdened by that type of flood hazard, was ...
Pavla Štěpánková +2 more
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Permeability and dynamic elastic moduli of controlled porosity ultra-precision aerostatic structures [PDF]
, 2014 Porous ceramic aerostatic bearings enable precise and smooth motion and improved stiffness compared with widely used orifice restrictor bearings. However, the processing techniques so far used are too complex or rely in lowering the sintering temperature
Corbett, John +2 more
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Characterising the porosity of multi-component mixtures in rotary mills [PDF]
, 2011 Porosity, or fractional void volume, is a simple but powerful quantity used in describing porous media. Characterising this very important parameter is vital to understanding key processes that occur in porous media, such as fluid transport.
Sichalwe, Kateula
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Finite element analysis of the effect of porosity on residual stress in 2024 aluminium alloy GTAW
Materials Research Express, 2020 Simulations of the welding process for butt joints using finite element analysis (FEA) of the effect of porosity are presented. The metal used was aluminium alloy (grade 2024), and the filler material was alloy ER5356.
Pattarawadee Poolperm +2 more
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Nanomaterials, 2023 A novel nanoporous adsorbent was obtained through the thermal treatment and chemical wash of the wasted crab shells (BC1) and characterized by various techniques.
Fran Nekvapil +6 more
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Surface and porosity of nanocrystalline boehmite xerogels [PDF]
, 2005 Boehmite xerogels are prepared by hydrolysis of Al(OC4H9)3 followed by peptization with HNO3 (H+/Al = 0, 0.07, 0.2). XRD and TEM show that these gels are made of nanosized crystals (5–9 nm in width and 3 nm thick).
Courty, Matthieu, Alphonse, Pierre
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International Journal of Ceramic Engineering & Science, 2023 Ultrahigh temperature ceramics (UHTCs) were analyzed for their suitability in hypersonic flight conditions using balanced heat equations, transport equation, and finite element modeling technique. Mathematical model was derived on the assumption that the
Carmine Zuccarini +4 more
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