Research in real time of some thermal and mass growth parameters of BGO and BSO crystals during the Czochralski process with weight diameter control
✍ Scribed by V. L. Tassev
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 570 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0022-2461
No coin nor oath required. For personal study only.
✦ Synopsis
The results obtained during the Czochralski (CZ) growth of Bi12SiO20 and Bi4~12 Gel 3 012-20, 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.