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Submicron Violet Tungsten Oxide 167

Submicron violet tungsten oxide may be used to prepare submicron tungsten powder (W powder). Cyclic Oxidation-reduction Method to Produce Submicron Tungsten Powder Step one: First reduction of violet tungsten oxide in hydrogen (H2), when temperature reached 860°C, keep it warm for 20min. Step two: Use tungsten powder obtained in step one, slowly heat it to 500°C in air, process the first oxidation when temperature reaches 500°C, and then keep it warm for 10min. Step three: Use sample of step two…

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Coarse Violet Tungsten Oxide 201

Coarse violet tungsten oxide is mainly a mixture of violet tungsten oxide and blue tungsten oxide. The performance of violet tungsten oxide is significantly affected by the phase composition of violet tungsten oxide. The tungsten oxides are mainly yellow tungsten oxide (tungsten trioxide), blue tungsten oxide, violet tungsten oxide and brown tungsten oxide (tungsten dioxide). In these tungsten oxides, only the violet tungsten oxide is monocrystalline structure, and the other tungsten oxides are polycrystalline structure. So, the powder prepared from…

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Fine Violet Tungsten Oxide 178

Fine violet tungsten oxide may be prepared by direct reduction of ammonium paratungstate (APT) under wet hydrogen conditions. The process is short and the equipment is simple. Adopting APT with particle size of 10μm as raw material, under the conditions of pH2O:pH2=1.7:1, the temperature is raised to 1173K in two hours, keeping 1.5h, directly reducing to obtain violet tungsten oxide with particle size of 2.2μm. The grain size of the prepared fine violet tungsten oxide depends on the factors such…

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Nano Needle-shaped Violet Tungsten Oxide 211

Nano needle-shaped violet tungsten oxide may be applied to produce nano tungsten powder and ultrafine tungsten powder by using Rayleigh instability principle and in-situ hydrogen reduction technology. Violet tungsten oxide is also a dingal nano material with many properties such as photochromicproperty, electrochromicproperty and gasochromicproperty, and it may be used in many kinds of sensors in the future. A Method for Preparing Nano Needle-shaped Violet Tungsten Oxide Raw materials: ammonium paratungstate (APT), or tungstic acid, or tungsten oxide WOx (2≤x≤3).…

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Tungsten Alloy Radiation Shield 372

Tungsten alloy radiation shield has excellent radiation shielding performance and environmental performance. It can ensure that when storing and transporting equipment involving radioactive substances, the radiation generated by the radiation source is the lowest level. So it reduces the diseases caused by radiation and become a good alternative to the traditional new radiation shielding for lead and steel. Characteristics Tungsten alloy shields have higher density than other radiation shielding materials, so they can exhibit better radiation shielding capabilities. It has…

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Tungsten Alloy Fake Gold Jewelry Box 269

Tungsten alloy fake gold jewelry box has the same high-end appearance as gold jewelry boxes. It has good abrasion resistance and long service life. It can be used for weddings, ornaments, employee benefits and tourist souvenirs, but it is prohibited for illegal purposes. Tungsten alloy fake gold jewelry box do not appear to be allergic during use, and it is shiny and bright and do not need to be polished again. It can be made into beautiful gifts for your…

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Tungsten Alloy Gold Plated Souvenir 257

Tungsten gold plated souvenir is commemorative items made of tungsten alloy with gold plated surfaces. It as high-grade environmental protection, long service life, wear resistance and corrosion resistance, and is the best gift for friends and family. Tungsten alloy gold plated souvenir is made of gold plated tungsten alloy. Tungsten is hard, wear-resistant and non-deformable discoloration, which can be permanently preserved. The gold plating process is the best material for souvenirs. Tungsten gold plated souvenir is high-end and environmentally-friendly, but…

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Tungsten Alloy Gold Plated Ornament 286

Tungsten alloy gold plated ornament is the best gold alternative, and it is one of the most popular fashion accessories in Europe and America. It is deeply loved by young people and becomes the first choice for gifts. Tungsten alloy gold plated ornament has high hardness, corrosion resistance, no rust, no wear scratches, no deformation and other excellent characteristics. The content of tungsten in the earth’s crust is only 0.001%. After smelting, the tungsten is a silvery-white and shiny metal,…

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Tungsten Alloy Gold Plated Jewelry 271

Tungsten alloy gold plated jewelry made of tungsten alloy has a density close to that of gold. It is cheap, durable, bright and beautiful, non-toxic and non-allergic. It is a substitute for gold and platinum, including necklaces, bracelets, earrings, rings, pendants and so on. Tungsten alloy gold plated jewelry has a density close to that of gold. It has high hardness, abrasion resistance, scratch resistance, long service life, and does not contain allergenic ingredients. Wearing tungsten alloy jewelry does not…

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Tungsten Alloy Pendant 254

Tungsten alloy pendant made of tungsten alloys is non-toxic, high-hardness, wear-resistant, and corrosion-resistant. It is very popular jewelry on the market today and is popular with young people. The raw material of the tungsten alloy pendant is mainly tungsten alloy. Because tungsten alloy material has many excellent properties, it is a suitable raw material for making pendants. The hardness of tungsten alloy pendant is very high and only can be cut by diamond. Tungsten alloy pendant is resistant to wear…

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