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Dielectric and mechanical properties of TGS-KDP mixed crystals

Author Affiliations

  • 1Department of Physics, Sree Siddaganga College for Women, Tumkur, Karnataka, India
  • 2Department of Physics, Sree Siddaganga College of Arts, Science and Commerce, Tumkur, Karnataka, India

Res. J. Recent Sci., Volume 6, Issue (8), Pages 1-5, August,2 (2017)


The high purity Analytical Reagent (AR) grade Glycine (CH2NH2COOH) and concentrated Sulphuric acid (H2SO4) were taken in the molar ratio 3:1 for the synthesis of Triglycine sulphate (TGS) respectively. The synthesized pure TGS is mixed with KDP in the molar ratio (9:1), (8:2), (7:3) and by slow evaporation technique the crystals were grown at room temperature. The Dielectric studies were performed using a LCR meter for the grown crystals. The presence of space charge polarization is confirmed by Dielectric studies. Vickers micro hardness measurement of the grown crystals reveals that hardness increases with load. The log p versus log d were plotted and work hardening co-efficient or Meyer indices (n) is determined. The functional groups are identified by Raman analysis.


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