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    • Keywords


      Microhardness; lithium niobate

    • Abstract


      In view of discrepancies in the available information on the hardness of lithium niobate, a systematic study of the hardness has been carried out. Measurements have been made on two pure lithium niobate crystals with different growth origins, and a Fe-doped sample. The problem of load variation of hardness is examined in detail. The true hardness of LiNbO3 is found to be 630 ± 30 kg/mm2. The Fe-doped crystal has a larger hardness of 750 ± 50 kg/mm2.

    • Author Affiliations


      K G Subhadra1 K Kishan Rao1 D B Sirdeshmukh1

      1. Department of Physics, Kakatiya University, Warangal - 506 009, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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