Abstract
The paper describes a crystallizer for growing single crystals from a solution by the method of temperature decrease; it is intended for studying the influence of growing conditions on the perfection of the crystals and for the actual growing of single crystals with minimum number of defects. The apparatus works in a temperature range of 30 to 80 °C, keeps the set temperature constant with an accuracy of ±0.002°C and automatically performs the temperature decrease at a constant rate of 0.002 °C/day to 5 °C/day. It provides for a wide variability in the volume of crystallization solution, in the stirring regime and in the method of fixing the seed. The design of the mechanical and electronic parts of the apparatus permits reliable operation even when the growing period lasts for several months. A special arrangement prevents a temperature shock when the crystal is removed from the crystallizer. Experience gained over a year of operation is also described.
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References
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A brief summary of this paper was delivered to the 6th Soviet Conference on Ferroelectricity held in Riga in May 1968.
The authors thank all their colleagues from the Department of Non-linear Dielectrics (Institute of Radio Engineering and Electronics of the Czechoslovak Academy of Sciences) headed by Dr. Z. Málek for their assistance in conceiving this crystallization equipment and in realizing it; their help in this project really made it a collective work. They also thank the director of the Institute, Dr. V. Zima, for all-round support and members of the Institute Workshop for devoted work in building the equipment.
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Mastner, J., Janta, J. A crystallizer for growing single crystals from a solution with very precise temperature control. Czech J Phys 20, 230–240 (1970). https://doi.org/10.1007/BF01697120
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DOI: https://doi.org/10.1007/BF01697120