Search
نمایش تعداد 1-10 از 198
Effect of the aluminum content on the behavior of mechanochemical reactions in theWO3–C–Al system
Abstract
In order to produce tungsten carbide from its oxide through mechanochemical process, a mixture of tungsten oxide, carbon and aluminum powders was subjected to high energy milling. Excess carbon addition was made in expense...
Rheological properties of fabricated tungsten oxide nanoparticle dispersed in ethylene glycol
Tungsten oxide nanoparticles have unique optical, electrical, and structural properties
and wide variety of applications in chemical and selective catalysis, mechanical
sensors, electrochemical industry, and environment [1, 2]. WO3...
Rheological properties of the nanofluids of tungsten oxide nanoparticles in ethylene glycol and glycerol
In this study, nanofluids of tungsten oxide (WO3) nanoparticles (0.5–4 % mass fractions) in ethylene
glycol (EG) and glycerol (G) as base fluids were prepared and their rheological properties were measured as functions of mass fraction...
Particle shape effects on some of the transport properties of tungsten oxide nanofluids
In this work, for the first time, particle shape effect on transport properties of nanofluids of
tungsten oxide nanoparticles (NPs) in glycerol was investigated. For this purpose, WO3 NPs with
different shapes using two methods...
Investigation of microstructure and mechanical properties of swaged Tungsten alloy -- بررسی مشخصات ریزساختاری و خواص مکانیکی آلیاژ تنگستن سویج شده
Tungsten heavy alloys are being increasingly used in a variety of applications such as cutting tools, military defense, bullet, armor and etc. Mechanical properties such as hardness and strength of the alloy in these cases are very important...
Synthesis, X-ray crystal structure and spectroscopic characterization of a hybrid material based on glycine and a-Keggin type polyoxotungstate
An solvated hybrid material was synthesized from glycine and alpha-Keggine type polyoxometalate under normal condition.
Conversion of W2C to WC phase during mechano-chemical synthesis of nano-size WC–Al2O3 powder using WO3–2Al–(1+x)C mixtures
Due to the weak properties of W2C phase, its formation during the process of WC synthesis should be
prevented. The aim of the present study has been the mechano-chemical synthesis of aWC–Al2O3 composite powder free ...