Dynamic global model of oxide Czochralski process with weighing control

被引：4

作者：

Mamedov, V. M. ^{[1
]}

Vasiliev, M. G. ^{[1
]}

Yuferev, V. S. ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 318卷 / 01期

关键词：

Computer simulation; Heat transfer; Interfaces; Czochralski method; Oxides; Dielectric materials; INTERFACE INVERSION; CRYSTAL-GROWTH; HEAT-TRANSFER; GADOLINIUM GALLIUM; MELT CONVECTION; SIMULATION; FEEDBACK; SHAPE;

D O I：

10.1016/j.jcrysgro.2010.11.108

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A dynamic model of oxide Czochralski growth with weighing control has been developed for the first time. A time-dependent approach is used for the calculation of temperature fields in different parts of a crystallization set-up and convection patterns in a melt, while internal radiation in crystal is considered in a quasi-steady approximation. A special algorithm is developed for the calculation of displacement of a triple point and simulation of a crystal surface formation. To calculate variations in the heat generation, a model of weighing control with a commonly used PID regulator is applied. As an example, simulation of the growth process of gallium-gadolinium garnet (GGG) crystals starting from the stage of seeding is performed. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：703 / 707

页数：5

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