Journal of Materials Science

, Volume 31, Issue 1, pp 209–213 | Cite as

Research in real time of some thermal and mass growth parameters of BGO and BSO crystals during the Czochralski process with weight diameter control

  • V. L. Tassev
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Abstract

The results obtained during the Czochralski (CZ) growth of Bi12SiO20 and Bi4–12 Ge1–3 O12–20, BSO and BGO respectively, crystals in an apparatus with weight diameter control are analysed. Behaviour of some physical and technological parameters is investigated in real-time. The curves of temperature, conical angle, weight and first weight, and diameter derivative with respect to time, as functions of time or changing temperature, are presented. The best ratio between the crystal and crucible diameter related to radiative heat exchange is found. In the growth stages, both the cylindrical and conical crystal parts are analysed. The results are compared with well known numerical models of the CZ process.

Keywords

Polymer Numerical Model Growth Stage Heat Exchange Material Processing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • V. L. Tassev
    • 1
  1. 1.Bulgarian Academy of SciencesInstitute of Solid State PhysicsSofiaBulgaria

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