Silicon nitride NGV's and turbine blades

Details Silicon nitride NGV's and turbine blades Silicon nitride NGV's and turbine blades

1973-08-27

1978-01-31

Arnold, Donald J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

364332, 264DIG44, C04B 3558

Patent

active

040713725

ABSTRACT:
The invention concerns a method of making an article from silicon nitride powder and a fluxing agent. The method comprises hot pressing a first section of the silicon nitride article, transferring the pressed section to a further mould large enough to accomodate sufficient silicon nitride powder and fluxing agent to produce the other section of the article, and subsequently hot pressing the contents of the mould to solidify the silicon nitride powder and fluxing agent into the second section of the article which becomes bonded to the first section.

REFERENCES:
patent: 3264338 (1966-08-01), Roach
patent: 3819787 (1974-06-01), Coe
Oudemans, "Continuous Hot Pressing," Phillips Technical Review, vol. 29, No. 2, (1968) pp. 45-51.

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