baoyu135国产精品免费_成人精品视频一级毛片_亚洲中字无码A∨电影在线观看_国产免费高潮白浆二区三区_免费视频在线观看高清无码_精品无码久久国产2024_亚洲AV无码专区牛牛影院_精品第一国产综合精品aⅴ_午夜大片爽爽爽免费影院_日本在线高清视频

Dark Blue Nano Tungsten Oxide Applied for Infrared Absorption Material

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 and the water vapor generated in the process can ensure the smooth formation of the pore, and form a certain strength skeleton network at a lower temperature.

Many of you may know that one of the keys to the preparation of tungsten-copper composites by the commonly used infiltration method is to prepare a tungsten skeleton with uniform structure, good wettability to copper, low impurity content, and a certain number of connected pores. The most common method for preparing tungsten skeleton is high-temperature pre-sintering method, that is, tungsten powder is first pressed into a blank with relatively low density at a relatively low pressure, and then sintered at a temperature of about 2000°C for a long time to obtain a tungsten skeleton of the desired relative density.dark blue nano tungsten oxide applied for infrared absorption material picture
However, the process has shortcomings: high sintering temperature, long sintering time, and many closed cells. The relative density of the tungsten-copper composite after infiltration is low, the energy consumption is large, the requirements on the equipment are high, and the process is difficult to control. Therefore, blue tungsten oxide is used as it may solve the problem of high pre-sintering temperature of tungsten skeleton and the existence of closed cells.

More details, please visit:
http://www.tungsten-powder.com/Blue-Tungsten-Oxide.html

Comments are closed.

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China Copyright ? 1997 - 2024 CTIA All Rights Reserved
Phone:+86-592-5129696,+86-592-5129595;    Email: [email protected]
舊版