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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/003/04/0429-0434

    • Keywords

       

      Chemical etching; etch pit shapes; etch pit orientation; chemical polishing; calcium fluoride; etching of CaF2

    • Abstract

       

      {110} surfaces of CaF2 crystals are etched with different concentrations of HCl. It is found that concentrated HCl produces characteristic rectangular pyramidal etch pits and 2 volume percent HCl produces boat shaped etch pits. Such variations in the etch pit shapes on {110} surfaces of CaF2 crystals with different concentrations of HCl have been explained. Concentrated H2SO4 is found to be a suitable chemical polisher for these surfaces, the polishing rate is about 0·1μ/min.

    • Author Affiliations

       

      G C Jain1 L C Jain1 2 T S Murty1 3

      1. Department of Applied Physics, Government Engineering College, Jabalpur - 482 011 M.P., India
      2. Department of Physics, Government Engineering College, Rewa - 486 002, India
      3. University of Sagar, Sagar, India

    • Dates

       
      Published
      December 1981
      Manuscript received
      25 October 1980

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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