نتایج جستجو برای: calcium carbide
تعداد نتایج: 176475 فیلتر نتایج به سال:
Carbide composites are materials based on the carbide phases of the refractory or high melting temperature metals. The hard carbide phase (WC, TiC) is usually embedded into soft matrix – pure metals (Fe, Co, Mo, Ni and others) or their combinations. The hard phase supports high hardness and strength of the carbide composites, while matrix is needed for toughness and plastic properties. The ordi...
There is a global upsurge in terminal diseases due to unnoticed intake of toxic chemicals. One such chemical Calcium carbide, which has been used ripen fruits by vendors. The aim this study showcase the effect carbide coerced ripened Pawpaw on kidney. Mature unripe Pawpaw’s were plucked off from parent plant at Yenagoa, Bayelsa State. dividing into two groups; one group was kept and allowed rip...
The inferred crystallographic class of circumstellar silicon carbide based on astronomical infrared spectra is controversial. We have directly determined the polytype distribution of circumstellar SiC from transmission electron microscopy of presolar silicon carbide from the Murchison carbonaceous meteorite. Only two polytypes (of a possible several hundred) were observed: cubic 3C and hexagona...
Nanocomposites films of (polymer blend-ceramics) were prepared from (PVA-PAA) blend and (PVA-PAA) blend doped with niobium carbide nanoparticles for humidity sensors have low cost, easy fabrication, high sensitivity, lightweight and high corrosion resistance. The structural, electrical and optical properties of (PVA-PAA-NbC) nanocomposites have been studied. The D.C electrical properties of (PV...
This paper was concerned with the effect of Mg on the temperature mechanical behavior and evaluation of the microstructure. The results showed that with increasing Mg from 0 to 47 ppm, the grain size was reduced from 64 to 38 µm and the carbides volume fraction was raised from 2.2 to 4.6 vot%. Mg changed the morphology of the carbide from a coarse and continuous one to a separate one. Mg ...
Solidifying shield muck with calcium carbide slag and fly ash as curing agents was proposed a highly efficient method for reusing waste muck. The compaction test, unconfined compression dry–wet cycle test were used to evaluate the compressive strength, water immersion stability, durability of cured soil. stress–strain curve microscopic employed analyze damage law, mineral composition, morpholog...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید