한국결정성장학회:학술대회논문집 (Proceedings of the Korea Association of Crystal Growth Conference)
- 한국결정성장학회 1998년도 PROCEEDINGS OF THE 15TH KACG TECHNICAL MEETING-PACIFIC RIM 3 SATELLITE SYMPOSIUM SESSION 4, HOTEL HYUNDAI, KYONGJU, SEPTEMBER 20-23, 1998
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- Pages.27-31
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- 1998
Growth of $CaF_2$ crystals by using multi-crucible set in vacuum Bridgman-Stockbarger(BS) method
- Kyoung Joo (Ceramic Process Research Center (CPRC), Hanyang University) ;
- Seo, Soo-Hyung (Department of Ceramic Engineering, Hanyang University) ;
- Auh, Keun-Ho (Department of Ceramic Engineering, Hanyang University)
- 발행 : 1998.09.01
초록
The growth method using multi-crucible set is very useful for mass production of optical crystals such as CaF2, Lif, BaF2 etc. CaF2 crystals of various diameter(42, 54 and 68mm) could be grown by means of multi-crucible set in one running operation and they were investigated to the formation of grain boundary as the cone-angle of crucibles. The qualities of crystal were evaluated by observing grain number and dislocation density. The transmittance was analyzed by using UV-Visible-NIR spectrometer.
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