The effects of temperature distribution on the barium titanate crystal growth in an LHPG system

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题名:	The effects of temperature distribution on the barium titanate crystal growth in an LHPG system
作者:	Lee,YC;Chen,JC
贡献者:	機械工程研究所
关键词:	LITHIUM-NIOBATE;SINGLE-CRYSTAL;FLOAT-ZONE;LINBO3
日期:	1999
上传时间:	2010-06-29 18:03:44 (UTC+8)
出版者:	中央大學
摘要:	In this study, we examined the effects of the float-zone length, the growth rate, the heating range and the crystal diameter on surface temperature distribution profiles and temperature gradients for a barium titanate single-crystal rod using an LHPG system. The results indicated that the axial surface temperature gradients were enlarged by decreasing the float-zone length and the width of heating range and increasing the growth rate and the diameter of the crystal. During the growth of a 0.7 mm diameter crystal rod at 0.6 mm/min, a growth rate with a narrow heating range and with a high maximum temperature gradient is high, about 2050 degrees C/mm, screw cracks periodically appearing on the crystal surface. (C) 1999 Elsevier Science B.V. All rights reserved.
關聯:	OPTICAL MATERIALS
显示于类别:	[機械工程研究所] 期刊論文

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