Ultra-high-temperature and ultra-low-oxygen atmosphere controlled furnace for development of materials technology

Metallurgical processing at 2600°C is developed under a special clean N2 or Ar atmosphere in a new type of continuous open furnace. The furnace can be used for sintering of various non-oxide ceramics, and diffusion bonding between alloys and ceramics, furthermore between various high temperature materials with no use of flux and without high compressed condition such as HIP technology. The novel technology at thus ultra high temperature depends on development of C/C composite conveyor belt. Many metal oxides (for example SiO2, TiO2) are dissociated to metal and oxygen in the atmosphere kept under an ultra low oxygen pressure. The principle is different from the case of the hydrogen reduction of oxides as known commonly. Thus there are no explosion such a hydrogen. Therefore higher safety is warranted in spite of open furnace. The great advantage yield is an inline system that heat treating process put among industrial machining line.