
Spherical densification tungsten powder has the advantages of good quality, high purity and uniform particle size distribution, commonly prepared by plasma method. Porous tungsten matrix prepared with spherical densification tungsten powder, connected with uniform pore structure, can store more barium emission materials. Applications Porous tungsten matrix prepared with spherical densification tungsten powder can provide uniform interconnected pore structure, can provide ample storage space for emitting material barium and migration channel, so that it can effectively improve the emission current density,…