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Superfine Tungsten Carbide Powder 328

Superfine tungsten carbide powder has good compatibility, which can improve the sharpness of the tool, and it can be prepared by one-step reduction carbonization method. Characteristic Superfine tungsten carbide powder has good compatibility with iron, copper, cobalt and nickel, which can increase the wear resistance of the tire body, reduce the variation of the matrix, and improve the sharpness of the tool. Preparation Compared with the traditional process, a one-step reduction carbonization method is used to prepare superfine tungsten carbide…

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Fine Particle Tungsten Carbide Powder 324

Fine particle tungsten carbide powder has smaller particle size, high specific surface area and good catalytic activity. It can replace precious metal as catalyst, but also can be used as raw material for the production of tungsten carbide. Particle The main influencing factors of fine particle tungsten carbide powder are the particle size and the composition of the tungsten powder. Due to the carbonization process is mainly achieved by the reaction of the surface of the tungsten powder particles with…

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Nanometer Tungsten Carbide Powder 322

Nanometer tungsten carbide powder is a kind of tungsten carbide powder with a particle size <100nm, which has the properties of the abnormal tungsten carbide powder. It can make the tungsten carbide with more excellent properties. Particle When the particle size of the tungsten carbide powder varies greatly, the characteristic of the powder is obviously different. Especially when the particle size reaches the nanometer level, it often shows the abnormal performance of the conventional tungsten carbide powder. Applications Nanometer tungsten…

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Ultrafine Tungsten Carbide Powder 324

Ultrafine tungsten carbide powder is tungsten carbide powder with particle size ≤0.5μm. It is the basic raw material for the production of ultrafine-grained tungsten carbide. It should be sealed in vacuum and cannot be stored for more than 8 months. Particle The particle size of the ultrafine tungsten carbide powder can be measured by using the microscope (SEM, TEM), the laser particle size method, the X-ray line width method and the specific surface area method. The combination of several measurement…

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Ti Doped Violet Tungsten Oxide 301

Ti doped violet tungsten oxide refers to the crystal lattice of VTO doped Ti (titanium atoms) to form a new type of crystal lattice. Ti doped W18O49 nanowire has good sensitivity and selectivity to NO2 gas. NO2 adsorbs on the surface of the tungsten oxide nanowire as an electron acceptor. It captures electrons from the conduction band of nanowire, resulting in a decrease in conductivity of the nanowire and a gas-sensitive response. Compared with W18O49 nanowire (pure phase), there are…

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Mo Doped Violet Tungsten Oxide 319

Mo doped violet tungsten oxide, or Mo-W18O49, can be synthesized by hydrothermal method. The Mo-W18O49 can be applied as the catalyst in manufacturing hydrogen with a very high activity. Why does molybdenum doping can increase the hydrogen activity of Mo-W18O49? After doping Mo, violet tungsten oxide, as a catalyst, whose hydrogen production activity is improved because the doping of Mo increases the active sites of catalyst, since the approximate 3D microstructure composed of one-dimensional nanowire can not only help electronic…

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V-doped Violet Tungsten Oxide 298

V-doped violet tungsten oxide, or V doped violet tungsten oxide, is doping V (vanadium) into VTO (W18O49) nanowire lattice structure to generate doped W18O49 nanowire. Some studies indicate that V doped violet tungsten oxide can be directly synthesized by solvothermal method, using tungsten hexachloride (WCl6) as tungsten source and NH4VO3 as dopant. Studies have shown that the gas sensor made of V-doped tungsten oxide nanowire has obvious sensitive response at room temperature and good stability response to the nitrogen dioxide…

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Doped Violet Tungsten Oxide 302

Doped violet tungsten oxide (VTO, W18O49) is the VTO product obtained by doping modification with a better property, like gas sensitive, catalyzing and others. Studies have indicated that doping is the excellent method to modify W18O49. The common seen doped violet tungsten oxides are V-doped violet tungsten oxide, Mo doped violet tungsten oxide and Ti doped violet tungsten oxide. They show their own unique properties as the doping elements are different. Here are a few examples, as listed below: 1.…

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Doping Blue Tungsten Oxide 281

Doping blue tungsten oxide, or doped blue tungsten oxide, is the β-tungsten oxide doped with small amounts of other elements to enhance its properties, such as K2O, SiO2, and Al2O3. The role of additives is the recombination action of Si-Al-K. Si-Al will promote the formation of β-W. K enters the lattice of W, under high temperature calcination, residue of K in tungsten rod will improve the non-sag performance of tungsten wire. Doping element changes the chemical component of blue tungsten…

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High Purity Blue Tungsten Oxide 271

In theory, high purity blue tungsten oxide (BTO) refers to the β-tungsten oxide with a very high purity of 99.99% and above. The quality of tungsten products is getting more and more attention with the constant rise of high and new technology. According to the tungsten products on the performance of genetic, high purity of blue tungsten oxide will directly contribute to the high purity requirements of downstream products. The industrial blue tungsten oxide mainly consists of several tungsten oxides…

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