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Pramana

, Volume 26, Issue 2, pp 151–159 | Cite as

Growth of single crystals of copper and their thermal profile estimation

  • S K Khanna
  • M Sekar
  • A Michael David
  • K Govinda Rajan
  • P Bhaskar Rao
Experimental Techniques

Abstract

Copper crystals have been grown by Czochralski technique in a 6-bar argon gas environment. X-ray analysis shows that these are single crystals and are strain-free. A slight pressure environment that is truly hydrostatic seems to improve the quality of the crystals. Thermal profile estimation results show that the values of temperature which decrease upto the neck region are same in magnitude as those measured during the experiments and that necking improves the thermal profile and, consequently, the crystal quality. No facet formation has been observed in these crystals.

Keywords

Copper crystals high pressure growth Czochralski technique 

PACS No.

61 81.10 

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Copyright information

© the Indian Academy of Sciences 1986

Authors and Affiliations

  • S K Khanna
    • 1
  • M Sekar
    • 1
  • A Michael David
    • 1
  • K Govinda Rajan
    • 1
  • P Bhaskar Rao
    • 1
  1. 1.Indira Gandhi Centre for Atomic ResearchKalpakkamIndia

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