Process for producing structures from synthetic single-crystal p

Details Process for producing structures from synthetic single-crystal p Process for producing structures from synthetic single-crystal p

1990-07-31

1993-04-13

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 89, 156 99, 156281, 264 12, 264 67, 501 86, 501120, 359885, B32B 3122, G02B 102

Patent

active

052019772

ABSTRACT:
A process for producing structures from synthetic single-crystal pieces having identical major component and crystal systems by chemically bonding to produce integration and simulation. The process of the present invention makes structures of synthetic single-crystals that are placed together like non-crystals. Therefore, with the process of the present invention, new synthetic single-crystal structures of larger or smaller complicated precise shapes having applications in optical, chemical, and physical fields may be produced. The structures from synthetic single-crystal pieces are comprised of a plurality of colorless synthetic single-crystals or colored synthetic single-crystals having the same prime component and either no color or color impurities contained therein. The synthetic single-crystal pieces are optically polished on both parallel ends which intersect at a particular crystal axes with a particular angle and the polished optical end faces are optically bonded with identical axes, identical axial angle, and identical axial ratio. The single-crystal pieces are all uniformally heated to chemically combine them to integrate them together to produce a filter structure having a particular predetermined spectrum of transmission or absorption.

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"Synthetic Sapphire Production Reaches Commercial Scale in U.S.", Linde Air Products Co., Reprint F-5670-P-15660, Oct., 1943.

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