Rod-like W Grain in W-Cu Electrode Formation—Powder Morphology(1/2)

Compared with the conventional infiltrated samples, the most outstanding characteristic of tungsten copper electrode by microwave infiltration is that it has rod-like W grain in micro-structure. And tungsten copper electrode with rod-like W grain is remarkably improved in the hardness and other properties. This is due to rod-like W grain will enhance the fiber to some extent, while fiber reinforced metal matrix composites not only has better lateral mechanical properties, but also has excellent thermal conductivity and electrical conductivity, in the case of high temperature refractory metal oxide splash can be effectively controlled, has good wear and corrosion resistance.

Recent years, with the rapid development of domestic composite material industries, fiber reinforced composite material plays an important role in many fields, such as high pressure vessel, naval vessel, missile, satellite, air plane and so on. Therefore, to study the formation mechanism of rod-like W grain in tungsten copper electrode by microwave infiltration becomes a new research hotspot of related researchers and scholars. To produce W grain, which arranged in order and has orientated growth, is not only a breakthrough in scientific research or industry, but also a brand-new attempt of reinforced alloy manufacturing. There is W grain morphology of tungsten copper W-Cu fabricated by microwave infiltration as follow:

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