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Blue tungsten oxide powder, also known as WO2.92, is a new type of infrared absorption material. Certainly, blue tungsten oxide may also be added to the sintered tungsten skeleton to increase the density of the skeleton. When the skeleton of blue tungsten oxide is reduced and sintered under a hydrogen atmosphere, the blue tungsten oxide is reduced to fine grain size tungsten powder. In order to study the effect of adding blue tungsten oxide into sintered tungsten skeleton on copper…

Blue tungsten oxide powder for infrared absorption material may be added to the tungsten powder, and then be sintered to obtain a tungsten skeleton. Some researchers have mixed blue tungsten oxide powder (the particle size of the three BTO samples is more and more smaller) of different particle sizes with a mass fraction of 10% and 2μm tungsten powder, and then sintered at 1400°C. The density of the skeleton after sintering was 50.54%, 58.26%, and 59.11%, respectively. As can be…

Blue tungsten oxide for infrared absorption material may be added to tungsten powder, and therefore be applied for sintering tungsten skeleton. 11.22μm of blue tungsten oxide powder with a mass fraction of 5%, 10%, and 15% was added to 2μm of tungsten powder, respectively. And the mixing powder was performed reduction sintering at 1300~1500°C. How does the density of the obtained tungsten skeleton change? Under the same molding pressure, the density of the skeleton compacts with different blue tungsten oxide…

Blue nano tungsten oxide for infrared absorption material can be added to the process of preparing tungsten skeleton by the reduction sintering process. What is the effect of addition of blue tungsten oxide powder on sintering and infiltration of the tungsten skeleton? Some researchers have done the following related experiments to study the influences: 1.0 Prepare the raw materials – Tungsten powder (particle size of 0.4μm, 1μm and 2μm, respectively) and blue tungsten oxide (particle size of 11.22μm). The powders…

Dark blue nano tungsten oxide not only may be applied for producing infrared absorption material, but can be used to treat the problem of tungsten skeleton with high pre-sintering temperature and the existence of closed cells. Some researchers have added a certain amount of blue tungsten oxide powder to tungsten powder. According to the reduction characteristics of blue tungsten oxide powder, tungsten powder of different particle diameters is formed during the reduction process, and the reduction of the interface energy…

Dark blue nano tungsten oxide is not only a new type of nano heat insulation material that can be used for heat insulating window glass, but also a raw material that can be applied in the reduction sintering process to prepare tungsten skeleton. Some scholars have carried out related experiments on addition of blue tungsten oxide during the production of sintered tungsten skeleton. The experimental results show that: 1.0 The addition amount of blue tungsten oxide powder has a great…

Dark blue nano tungsten oxide may not only be applied for preparing window heat insulation film, but also be used to produce tungsten skeleton in the reduction sintering process. The reduction sintering process with the addition of blue tungsten oxide powder to prepare tungsten skeleton is to explore a new tungsten skeleton sintering process to reduce the sintering temperature of skeleton and improve the performance of tungsten copper composite material, and finally achieve mass production in the industry. Therefore, some…

Dark blue nano tungsten oxide may be applied for producing thermal insulating glass. I believe that almost everyone knows the existence of heat insulating glass, but the answer of “What is dark blue nano tungsten oxide powder?” is not necessarily clear. In fact, this nano grade blue tungsten oxide can be used on glass to shield most of the ultraviolet rays. Therefore, researchers are focused on studying this material. And therefore, the raw material for producing blue tungsten oxide, ammonium…

Dark blue nano tungsten oxide for heat insulation coating can be prepared by using a regular type ammonium paratungstate (APT with regular crystal form) or a common type ammonium paratungstate (APT with common crystal form). Some researchers have compared the impurity elements of the two types of crystalline ammonium paratungstate with the national standard GB/T10116-2007 APT-1 standard requirements. They found that both APTs effectively controlled the content of impurity elements, especially the control of Cl ions, which is not specified…

Dark blue nano tungsten oxide for thermal insulation coating can be obtained by using ultra-pure ammonium paratungstate as a raw material and calcining it in argon. Thereafter, the obtained blue tungsten oxide is reduced in hydrogen. The tungsten powder obtained by the first reduction is oxidized to tungsten trioxide in air and then reduced to tungsten powder by the second reduction in hydrogen. The specific surface area of the tungsten powder after the second reduction was measured to be 0.180m2/g,…