焰熔法生长钛酸锶单晶体生长室内温度分布的数值模拟<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.016.029

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Abstract Temperature distribution in growth chamber for preparation of strontium titanate single crystal with hydro-oxygen flame fusion method was investigated, and the effects of oxygen and hydrogen flow rate and aperture of nozzle on temperature distribution was analyzed. The results showed that the radial temperature and pressure at growth position of crystal decreased with the increasing of diameter. The maximal axial temperature and radial temperature of the melted cap of crystal increased with the increasing of hydrogen flow rate. With the increasing of oxygen flow rate, the radial temperature and pressure of the melted cap of crystal increased gradually in the growth chamber, while the maximal axial temperature decreased. With the increasing of oxygen aperture, the maximal axial temperature, the radial temperature and gradient decreased. The aperture of hydrogen had little effect on the axial and radial temperature in growth chamber.

Key words： flame fusion method strontium titanate single crystal growth chamber temperature distribution

Published: 07 May 2018

CLC number:	TB321
	O782

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	LIU Xudong
	BI Xiaoguo
	SUN Xudong

Cite this article:

LIU Xudong,BI Xiaoguo,SUN Xudong. Numerical Simulation of Temperature Distribution in Growth Chamber for Preparation of Strontium Titanate Crystal with Flame Fusion Method[J]. Materials Reports, 2017, 31(16): 138-143.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.016.029 OR http://www.mater-rep.com/EN/Y2017/V31/I16/138

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