Title: Equipment and process for producing large diameter monocrystal of lithium neobate
Application Number: 85104969 Application Date: 1985.06.25
Publication Number: 1006509 Publication Date: 1987.01.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C30B15/00,C30B15/14,C30B15/36,C30B29/30
Applicant(s) Name: Research Institute of Glass-Enamel Science and Tec Address:
Inventor(s) Name: Kun Baoguo, Ma Chuanxi, Zhang Guobien, Zhao Junlin
Attorney & Agent:
Abstract:
     It is in electroresistant furnace by extending mechanism. In the upper part of cavity of the furnace is installed a heat radiating conic cover made of refractory materials, by which the temp. gradient over the liquid surface is reduced to 15-17 deg.C/cm, the temp. in the space existing of the crystal maintain above the curie paint, and the pt-Rh seed crystal rod is used instead ofthe Pt-seed crystal rod. Diameter of the extended monocrystal is 120-200 m/m, and the weight of which is 5-10kg. This method considerably increases the crystal growth efficiency and thus saves energy and labor.
Time: 26
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