Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1988-08-26
1994-05-10
Doll, John
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
117 13, 117 35, 117948, C30B 2930
Patent
active
053104480
ABSTRACT:
A new compositional relationship in the starting charge of a crystal growth station (FIG. 1 ) provides homogeneous monocrystalline lithium niobate. A new measurement system (FIG. 2 ) provides Curie point values of significantly greater accuracy then that of conventional measurements. Careful control of the starting charge composition for crystal growth and effective utilization of the measurement system enable the determination of the compositional range of starting charges for producing congruent crystalline production. The composition corresponds to a mol percentage of 48.35.+-..01 to 48.40.+-..01 of Li.sub.2 O and the remainder Nb2.sub.O 5 for producing homogeneous crystal whose solidification fraction of the molten charge exceeds that which was heretofore achievable.
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Bordui Peter F.
Nightingale John L.
Norwood Richard G.
Codispoti Joseph S.
Crystal Technology, Inc.
Doll John
Kunemund Robert M.
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