Sintering or reaction sintering process for ceramic or refractor

Details Sintering or reaction sintering process for ceramic or refractor Sintering or reaction sintering process for ceramic or refractor

1983-09-19

1985-12-17

Derrington, James

Compositions: ceramic

Ceramic compositions

264 64, 264 65, 423344, 501 92, F27B 910

Patent

active

045593124

ABSTRACT:
A process for sintering or reaction sintering ceramic or refractory materials with hot plasma gases. The hot plasma gases are produced by injecting a combined primary plasma arc with a secondary gas stream directly into a reaction furnace. The secondary gas stream is tangentially injected into the primary plasma arc gas stream to mix the gases for the required sintering temperature at the highest energy efficiency. The plasma torches are positioned in the furnace ports so that the plasma gas flow is perpendicular to the furnace process gas flow. This process is inexpensive and efficient and results in a superior quality sintered product. It may be adapted to continuous or periodic kilns to achieve a high furnace productivity.

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