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首页> 外文期刊>Journal of Crystal Growth >Thermal stress inhibition in double crucible Czochralski large diameter crystal growth
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Thermal stress inhibition in double crucible Czochralski large diameter crystal growth

机译:双坩埚直拉大直径晶体生长中的热应力抑制

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In this paper we consider the problem of thermal stress inhibition in double crucible Czochralski crystal growth by means of a thermal tube with linear temperature distribution cornputationally determined from solution with adiabatic boundary condition, which provides the formation of a stressless one-dimensional temperature distribution alone the growing crystal. We study how this linear temperature distribution applied along the thermal tube is "transferred" into the growing crystal depending on the gap between crystal and inner tube surfaces, within which complex radiative-convective heat transfer takes place. Calculations presented in the paper suggest that linear temperature distribution along the thermal tube allows an order of magnitude stress reduction in 80-100mm diameter crystals of LiNbO3 (C) 2004 Elsevier B.V. All rights reserved.
机译:在本文中,我们考虑了通过具有绝热边界条件的溶液以线性方式计算的线性温度分布的热管来抑制双坩埚Czochralski晶体生长中的热应力问题,这仅形成了无应力的一维温度分布。成长中的水晶。我们研究了沿着热管施加的线性温度分布如何根据晶体和内管表面之间的间隙“转移”到生长的晶体中,在该间隙内发生复杂的辐射-对流换热。该论文提出的计算结果表明,沿热管的线性温度分布可使直径为100-100mm的LiNbO3(C)2004 Elsevier B.V.晶体的应力降低一个数量级。保留所有权利。

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