Near net shape fabrication of ceramic radomes

Details Near net shape fabrication of ceramic radomes Near net shape fabrication of ceramic radomes

1999-01-20

2000-07-04

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Producing hollow article

264632, 264633, 264636, 264670, 264678, C04B 3328, C04B 35634

Patent

active

060834528

ABSTRACT:
A radome is fabricated by mixing a mass of ceramic powders, a dispersant chemical, a prepolymer material, and a solvent together to form a casting mixture, which is then cast into a mold having the shape of a radome. The prepolymer material in the casting mixture is cured, and the casting mixture is dried. The molded article is heated to a burnout temperature sufficiently high to vaporize the prepolymer material and the dispersant chemical, and thereafter the molded article is heated to a sintering temperature sufficiently high to sinter the ceramic particles.

REFERENCES:
patent: 3917773 (1975-11-01), Gates
patent: 4894194 (1990-01-01), Janney
patent: 5028362 (1991-07-01), Janney et al.
patent: 5419860 (1995-05-01), Menchhofer
patent: 5627542 (1997-05-01), Paquette
patent: 5665440 (1997-09-01), Menchhofer
patent: 5948348 (1999-09-01), Semff

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