The Influence of Power Control on the Diameter of Nd：YAG Crystal

The Nd：YAG crystal has successfully been grown in a pure argon atmosphere using Czochralski method with ADC （Automatic Diameter Control） r.f. heating. The effect of power control on growth parameters, which include the crystal rotation rate, pull rate and hot-zone geometries were investigated. A ser...

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Bibliographic Details
Published in:Journal of materials science and engineering. A 2011-06, Vol.1 (1), p.93-97
Main Authors: Kamaruddin, WHA, Rohani, MS, Sahar, M R
Format: Article
Language:chi ; eng
Subjects:
Argon
Crystal pulling
Crystallization
Crystals
Heating
Microstructure
ND：YAG晶体
Power control
Seeds
几何形状
旋转速度
旋转速率
生长参数
电力控制
电源控制
自动直径控制
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Summary:The Nd：YAG crystal has successfully been grown in a pure argon atmosphere using Czochralski method with ADC （Automatic Diameter Control） r.f. heating. The effect of power control on growth parameters, which include the crystal rotation rate, pull rate and hot-zone geometries were investigated. A series of experiments were run with the rotation speed of the seed were 2 - 15 rpm and the pulling rate was kept constant at 0.75 mm/hr. All runs were made with growth along the c-axis 〈111〉 direction. The result shows that lowering the power control will accelerate the crystallization and larger the diameter and/or increasing the power control will decrease or smaller the diameter.
ISSN:2161-6213