Microbubble formation during crystallization of LiNbO 3 melts

Bubbles whose size ranged from sub-micron to ∼ 1 μm were observed along the interface in the interface liquid boundary layer of LiNbO 3 melts when fiber-shaped LiNbO 3 crystals were grown via laser-heated pedestal growth (LHPG). This method usually yields a very high temperature gradient near the so...

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Bibliographic Details
Published inJournal of crystal growth Vol. 152; no. 1; pp. 79 - 86
Main Authors Uda, Satoshi, Tiller, William A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1995
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Summary:Bubbles whose size ranged from sub-micron to ∼ 1 μm were observed along the interface in the interface liquid boundary layer of LiNbO 3 melts when fiber-shaped LiNbO 3 crystals were grown via laser-heated pedestal growth (LHPG). This method usually yields a very high temperature gradient near the solid-liquid interface leading to significant thermoelectric power which affects the distribution of LiNbO 3 intrinsic species in the melt. Supersaturation of OLi − and/or O 2− ions at the interface were calculated to have a large enough total supersaturation to nucleate bubbles due to a combination of both solute build up and a significant temperature difference between the interface and the far-field liquid.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(95)00084-4