نتایج جستجو برای: sic nanoparticles
تعداد نتایج: 119981 فیلتر نتایج به سال:
Understanding the role of nanoparticles in magnesium (Mg)-based materials and protective coating provides valuable information to achieve an optimized combination mechanical corrosion protection properties Mg nanocomposites. The present study investigates effects SiC on behavior structure Mg-SiC composites substrates coated by plasma electrolytic oxidation (PEO). Moreover, influence different v...
The cluster-expansion method was used to perform first principles phase diagram calculations for the wurtzite-structure quasibinary systems (SiC)1 X(AlN)X, (SiC)1 X (GaN)X and (SiC)1 X(InN)X; and to model variations of band gaps as functions of bulk compositions and temperature. In SiC-AlN, plane wave pseudopotential formation-energy calculations predict low-energy metastable states with format...
Abstract Several supported liquid-phase (SLP) catalysts with immobilized Rh-biphephos complexes on monolithic supports were prepared and applied for continuous gas-phase hydroformylation (HyFo) of 1-butene. The support comprised macroporous silicon carbide (SiC) deposited silica nanoparticles (NPs) in order to provide mesopores enhanced capillary forces retain the liquid-phase. Variable paramet...
در این پژوهش از روش انباشت لایه های پودری برای ساخت کامپوزیت های تابعی al-sic استفاده شده است. به این منظور از پودر al خالص تجارتی با اندازه متوسط 120 میکرومتر به عنوان زمینه و از ذرات کاربید سیلیسیم در سه اندازه 50، 125 و 165 میکرومتر به عنوان فاز تقویت کننده استفاده شد. ابتدا درصد معینی از پودر sic با اندازه ذرات معین با پودر آلومینیم مخلوط شد تا توزیع یکنواختی در پودر al از روش مخلوط سازی تر...
SiC-SiC composites offer excellent potential for fusion energy as well as numerous commercial applications. High manufacturing cost and very low through-the-thickness (transverse) thermal conductivity (below 15 W/mK) hinders wider applications of SiC/SiC composites. To overcome these obstacles, a low-cost, Chemical Vapor Reaction (CVR) process was developed to fabricate crystalline, high purity...
Ultrahigh performance cooling is one of the important needs of many industries. However, low thermal conductivity is a primary limitation in developing energy-efficient heat transfer fluids that are required for cooling purposes. Nanofluids are engineered by suspending nanoparticles with average sizes below 100 nm in heat transfer fluids such as water, oil, diesel, ethylene glycol, etc. Innovat...
In this paper, the comparison of cyclic hysteresis behavior between cross-ply C/SiC and SiC/SiC ceramic-matrix composites (CMCs) has been investigated. The interface slip between fibers and the matrix existed in the matrix cracking mode 3 and mode 5, in which matrix cracking and interface debonding occurred in the 0° plies are considered as the major reason for hysteresis loops of cross-ply CMC...
Streptococcal inhibitor of complement (Sic) is a highly polymorphic extracellular protein made by serotype M1 group A Streptococcus strains that contributes to bacterial persistence in the mammalian upper respiratory tract. New variants of the Sic protein arise very rapidly by positive selection in human populations during M1 epidemics. The human antibody response to Sic was analyzed. Of 636 pe...
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