Growth of zinc single crystals at a controlled rate from the melt
- Iowa State Univ., Ames, IA (United States)
The equipment and procedure for controlled rate growth of zinc single crystals by the Bridgeman technique were developed. Crystals 1. 0 inch in diameter and 8. 5 inches long were grown under different conditions of temperature gradient, growth rate, and radial heat loss. It was observed that two variables, growth rate and radial heat loss, had to be controlled to assure a high probability of single crystal growth. Sparkcutting to obtain the necessary surfaces for determination of crystal perfection appeared to cause nucleation of a large number of dislocations. The method of cutting crystals needs to be examined and possibly modified or replaced by a new method such as the use of an acid saw.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-82
- NSA Number:
- NSA-25-023443
- OSTI ID:
- 4023232
- Report Number(s):
- IS-T--441
- Country of Publication:
- United States
- Language:
- English
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