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Tungsten alloy has become a new type of shaped charge liner material with wide application prospects due to its high melting point, high density, high sound velocity, good ductility, and good machining performance. The components of tungsten alloy material for preparing shaped charge liner material include W-Ni-Fe, W-Ni-Cu, and the like. More details, please visit: http://www.tungsten-alloy.com/en/alloy04.htm Previously, some researchers used W-Ni-Fe alloy shaped charge liner for static penetration tests. The results showed that tungsten alloy shaped charge liner can form…

Tungsten alloy shotgun bullet is small. Generally, there are some spherical projectiles. At that time, from the perspective of density and hardness, lead was considered a suitable material for shotgun bullet. However, shotguns are used for hunting animals. If toxic lead bullets are used, it seems that the hunted prey is not so “safe” for eating. While tungsten alloy is non-toxic, environmentally friendly and pollution-free, so it is developed to replace traditional heavy metal lead as the projectile material. More…

Tungsten alloy armor piercing shell, which consists of a tungsten alloy core encased in a jacket of copper alloy, is a type of ammunition designed to penetrate armor. Such an armor piercing shell is also known as a kinetic energy armor-piercing projectile. It has been reported that the core of the former West Germany’s 105mm armor piercing discarding sabot was made of tungsten alloy containing 95%W-3.4%Ni-1.6%Fe. Its density can reach about 18 g/cm3. More details, please visit: http://www.tungsten-alloy.com/en/alloy04.htm The reason…

Recently, the experts have proposed a preparation method for preparing new yellow tungsten oxide photocatalytic material. The method is easy to operate, easy to obtain raw materials, and easy to popularize in low cost. More details, please visit: http://tungsten-oxide.com/index.html A Preparation Method of New Yellow Tungsten Oxide Photocatalytic Material Step One: Dissolve Na2WO4·H2O2 in deionized water and stir magnetically for 10-30min to obtain a uniform and transparent solution. Step Two: Add HCl to the solution prepared in Step One, and…

Yellow tungsten oxide, namely tungsten trioxide or WO3, is a common semiconductor photocatalytic material. Certainly, there are other common semiconductor photocatalytic materials such as TiO2, ZnO, Fe2O3 and Bi2WO6. Wherein, so far, the most studied material is TiO2. However, due to the shortcomings of TiO2 – wide band gap and low conversion efficiency of visible light, people have begun to improve the light utilization efficiency of photocatalysts from two directions: More details, please visit: http://tungsten-oxide.com/index.html 1. Replace the oxygen element…

As a new energy-saving building material, WO3 electrochromic glass has attracted more and more attention. For example, some experts use a WO3 thin film having nanocrystalline mosaic structure as an electrochromic material, and combine it with NiO to assemble an electrochromic device – an electrochromic glass, with high spectral modulation amplitude. More details, please visit: http://tungsten-oxide.com/index.html Such a smart glass can selectively absorb or reflect external heat radiation and internal heat diffusion under the action of an electric field, reducing…

A yellow tungsten oxide composite film uses amorphous tungsten oxide as a matrix, and the SiO2 nanocrystals are uniformly distributed in the amorphous tungsten oxide. Some experts prepared such a composite film with a spectral modulation amplitude at 633 nm of 46%, a coloring time of 8 s, and a fade time of 4.3 s through the following steps: More details, please visit: http://tungsten-oxide.com/index.html Step One: Ultrasonic disperse 0.3g of SiO2 nanocrystalline powder in 6mL of dimethylformamide to form a…

As a photocatalyst, yellow tungsten oxide (WO3) has significant volume effects, surface effects, quantum size effects, and macro quantum tunnel effects, so that it has a wide range of applications in environmental pollution purification and energy regeneration, and therefore it has attracted much attention. Compared with commonly used photocatalysts such as TiO2 and ZnO, yellow tungsten oxide has a smaller forbidden band width and a larger light absorption range, thus it can use visible light (accounting for nearly half of…

The enhancement of photocatalytic performance of yellow tungsten oxide is the improvement of yellow tungsten oxide as a catalyst by compounding it with other semiconductors. Studies have shown that semiconductor recombination improves the photocatalytic performance of photocatalysts by improving the charge separation effect of the system and expanding the corresponding range of its spectrum. More details, please visit: http://tungsten-oxide.com/index.html Studies also found that binary or multiple composite semiconductors, such as TiO2-WO3, show higher photocatalytic activity than single components. For example,…

Studies have shown that nonmetal doping can improve photocatalytic property of yellow tungsten oxide. For example, some experts prepared N-doped tungsten oxide photocatalyst by sol-gel-ammonia-oxygen calcination, and characterized and analyzed the structural properties of the samples by SEM, XRD, XPS, and DRS. They also investigated the effect of N doping on the catalytic activity of yellow tungsten oxide for photolysis of water to make oxygen by comparative experiments. More details, please visit: http://tungsten-oxide.com/index.html The results show that after N doping…