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Ultrafine Tungsten Oxide 281

Ultrafine tungsten oxide is a kind of high purity powder with small particle size and uniform distribution. Its specific surface area is large; Surface activity is high; Bulk density is low. It contains ultrafine yellow tungsten oxide (WO3), ultrafine blue tungsten oxide (WO2.90), ultrafine violet tungsten oxide (WO2.72) and ultrafine tungsten dioxide (WO2). Applications 1. As an intermediate product, it is applied to produce tungsten powder and tungsten carbide powder (WC powder), thereby producing tungsten products or tungsten carbide products.…

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Optical Grade Tungsten Trioxide 243

Optical grade tungsten trioxide is a type of light yellow powder of optical grade (10-^8 orders of magnitude). Its purity can reach 99.99%. The tungsten trioxide becomes dark orange if it is heated and restores its original color if it is cooled. The tungsten trioxide thin film with uniform surface is prepared by sol-gel method and direct current reactive magnetron sputtering method. The light transmittance and the structure of the film are measured by double beam UV-visible light spectrophotometer and…

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Nano Tungsten Trioxide 253

Nano tungsten trioxide is a type of tungsten trioxide powder of nano grade that has the advantages of uniform particles, high activity and large specific surface area. Therefore, it has shown a large market potential and a bright future in the anode material and rechargeable li-ion cells. Nano grade tungsten trioxide has some crystal structures. They are orthorhombic, monoclinic, cubic or hexagonal. Among them, hexagonal tungsten trioxide has drawn much attention due to its special hexagonal channel. One-dimensional nanomaterials such…

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Crystalline Tungsten Oxide 225

Crystalline tungsten oxide is tungsten oxide powder of crystal grain, which is the largest particle in tungsten oxide powder, light yellow (yellow tungsten oxide) or blue (blue tungsten oxide) or brown (tungsten dioxide) or violet (violet tungsten oxide) in color. The crystal size has a very important effect on the material properties of tungsten oxide, such as photocatalytic material properties. If the particle size of tungsten oxide powder is smaller than the thickness of space charge layer, the time for…

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High Temperature Medium Grain Size Tungsten Carbide Powder 323

High temperature medium grain size tungsten carbide powder is black hexagonal crystal with metallic luster. It can prepare the WC-6%Co alloy which is obviously superior to the YG6 alloy and has the good property, such as uniform structure and good overall performance. Application High temperature medium grain size tungsten carbide powder is the raw material prepared WC-6%Co alloy. The WC-6%Co alloy has uniform in structure, complete WC hard phase crystal structure with an average grain size of 2.0~2.5μm overall performance…

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High Quality Superfine Tungsten Carbide Powder 318

High quality superfine tungsten carbide powder is a raw material for the production of ultra-fine grain cemented carbide. It has high hardness and wear resistance as well as high strength and impact toughness. Characteristics Its total carbon makes tungsten carbide phase in the two-phase zone, and the free carbon content is not more than 0.05%; Its average particle size is not more than 1μm, and the main particle size of less than 2μm is greater than 70%; Its iron content…

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Superfine Nano Tungsten Carbide Powder 341

Superfine nano tungsten carbide powder has a small particle size, high hardness, density, and melting point. It is the main raw material for preparing sputtering target material and electron emission material. Application Superfine nano tungsten carbide powder is the main raw material for the preparation of high quality tungsten-based electrical contact materials, electronic packaging materials, integrated circuit refractory gates and barrier sputtering targets, electron emission materials. Its quality directly affects the final performance of tungsten-based electronic material products. Preparation The…

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High Quality Tungsten Carbide Powder 354

High quality tungsten carbide powder has the advantages of high melting point, high hardness and good stability. It has a wide range of applications and can be prepared by direct reduction carbonization technology. Application For alloy steels. Mainly used for high-speed cutting steel containing 8% to 20% tungsten; Make heat-resistant and wear-resistant alloys. Tungsten alloys can be obtained by adding elements such as Cr, Co, Ta, Mo, and Re. The tungsten content is 3% to 15%, which is used for…

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Coarse Grain Size Crystalline Tungsten Carbide Powder 347

The coarse grain size crystalline tungsten carbide powder is produced by high-temperature reduction and high-temperature carbonization, and has a series of advantages such as microscopic structure, less defects, high microhardness, and small microscopic strain. It also has a different range of use with medium and fine grain tungsten carbide powders. The coarse grain size crystalline tungsten carbide powder produced by high-temperature carbonization of medium and fine grain tungsten powder has also changed its properties, and its scope of use is…

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Coarse Crystalline Tungsten Carbide Powder 349

Coarse crystalline tungsten carbide powder has some special properties and special applications that are different from those of medium and fine grain size tungsten carbide powders. It has gained increasing attention in various industrial fields. The traditional method for preparing coarse crystalline tungsten carbide powder is to use tungsten trioxide for high-temperature reduction to obtain particulate tungsten powder, and then coarse-grain tungsten powder for high-temperature carbonization to obtain coarse-grained tungsten carbide powder. The production process of coarse crystalline tungsten carbide…

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