نتایج جستجو برای: weathered street surface particles
تعداد نتایج: 797915 فیلتر نتایج به سال:
Abstract The phyllite-weathered soil is a regional speciality. It essential to study the changes in shear strength of under dry-wet cycles understand mechanical properties process climate and manage slope soil. This paper simulated 12 on specimens remodelled Direct SEM tests were conducted 0th, 3rd, 6th, 9th, 12th drying paths. effects moisture content number analysed macroscopically microscopi...
in this research, surface composite layers containing nano sized tib2, al2o3-tib2, zro2 and cnt particles have been fabricated on aluminum alloy substrates by friction stir processing. the effects of different processing variables such as number of passes and strengthening particle distribution, hardness, and wear properties of surface nanocomposite layers have been evaluated by electron micros...
Effects of accelerated and natural weathering on the molecular weight distribution (MWD) and crystallinity of polypropylene (PP) in wood plastic composites (WPC) were investigated. The composites were produced from pine fibers (60%) and PP (40%). Prolonged weathering caused an increase in wood degradation and erosion thereby leaving cracks and ‘‘pits’’ on the surface. Pyrolysis gas chromatograp...
Friction stir processing (FSP) was used for the fabrication of Al-B4C surface composite. Al-Mg-Si alloy was considered as the substrate and B4C particles were incorporated into the substrate by thermo-mechanical effect of FSP. The effect of tool dimensions and different rotational speeds on the microstructure and microhardness of the composite layers was evaluated and the optimum process parame...
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