Crystal Growth of Lithium Tetraborate (Li2B4O7)
Crystal Growth of Lithium Tetraborate (Li2B4O7)
复制标题
四硼酸锂 (Li2B4O7) 的晶体生长
DOI：
10.7567/jjaps.24s3.72
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
A. Kawabata
中科院分区：
文献类型：
--
作者：
M. Adachi;T. Shiosaki;A. Kawabata
在提拉速率为1 mm/h、籽晶转速为6 r. p.m.的条件下，采用提拉法的自动直径控制（ADC）生长出了直径为23 mm、长为80 mm的高质量Li_2B_4O_7单晶。这种晶体是非常透明和无色的，并拥有大的区域没有任何光学均匀性。讨论了某些晶体生长过程中出现的核心等宏观缺陷。晶体生长过程中产生的核心主要取决于晶体生长过程中的拉晶速率、快速的温度变化和原料的纯度。
A good quality single crystal of Li2B4O7, up to 23 mm in diameter and 80 mm in length, has been successfully grown at a crystal pulling rate of 1 mm/h and the seed rotation rate of 6 r.p.m. by an automatic diameter control (ADC) of the Czochralski method. This crystal was very transparent and colourless, and possessed large regions free of any optical in homogeneity. Macroscopic defects such as cores appeared in some growing crystals have been discussed. Cores generated in growing crystals largely depended on the crystal pulling rate, rapid temperature change during the crystal growth and purity of starting materials.