Method of making a graphite-glass composite laser mirror

Details Method of making a graphite-glass composite laser mirror Method of making a graphite-glass composite laser mirror

1980-11-05

1982-11-02

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Optical fiber, waveguide, or preform

65 181, 65 183, 264 19, 264332, 350288, 350310, B29D 1100

Patent

active

043572863

ABSTRACT:
A laser mirror stable at high and low temperatures is described comprising graphite fibers in a glass matrix. The mirror is made by hot pressing a graphite fiber lay-up in a glass matrix in a die having a highly polished mirror replicating surface, the fibers laid up in such a way to produce a central plane of symmetry across the central plane of the composite. In use, the composite requires a separate laser reflecting surface layer. The resulting laser mirror has a low density but no porosity, high elastic stiffness, high strength, high fracture toughness, low thermal expansion, high thermal conductivity and environmental stability.

REFERENCES:
patent: 3131238 (1964-04-01), Carnall, Jr. et al.
patent: 3311522 (1967-03-01), Ladd et al.
patent: 3645608 (1972-02-01), Staley et al.
patent: 3766000 (1973-10-01), Gibson et al.
patent: 4268562 (1981-05-01), Bacon et al.

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