When I receive tungsten iridium stream mouth as my product, I think it as an alloy of tungsten and iridium. But after discussion with our manufacturing department, I found what I was thinking is really a mistake. 

Among MoS2, WS2, MoSe2, and WSe2, the intrinsic state of WS2 is a bipolar semiconductor, which has both n-type and p-type electron transport properties. Therefore, graphene-like WS2 film has become the current research in the field of two-dimensional atomic layer materials. Hot spot. The following mainly introduces the research status of photoelectric and electrocatalytic properties of WS2 film.

The Chinese standard used now is YS/T 854-2012 Tungsten Iridium Stream Mouth, which is under the nonferrous metal industry standard and issued by the Ministry of Industry and Information Technology of the People’s Republic of China.

Tungsten carbide powder is the main raw material for the production of cemented carbide, and ultra-fine tungsten carbide powder is also the main raw material for ultra-fine grained cemented carbide.