
95% fine grain size violet tungsten oxide may be reduced in hydrogen atmosphere to obtain tungsten powder (W powder). And W powder is carbonized to obtain submicron tungsten carbide powder (WC powder). There are some methods for studying the morphology of VTO, W powder and WC powder: 1. Directly observe the morphology of these types of powder in scanning electron microscope (SEM) to know the overall condition. 2. These kinds of powder are made into samples after being dispersed under…