Effect of magnesium sulfate on various properties of lithium formate monohydrate crystals

G.Emerson Robin, U.Sankar, T.Chithambarathanu, P.Selvarajan

Undoped and magnesium sulphate doped lithium formate monohydrate  crystals have been grown by slow evaporation solution growth technique. Solubility studies for the samples were carried out in the temperature range 30 to 60 oC. X-ray diffraction studies confirm that the grown crystals crystallize in orthorhombic system. Mechanical parameter such as microhardness was evaluated by Vicker’s hardness test. Laser damage threshold values were measured for the samples. SHG efficiency was measured using a Nd.YAG laser. The measurement of dielectric constant, dielectric loss of the grown crystals was carried out at different frequencies.  EDAX studies were made to identify the elements present in the samples. The results obtained from the various studies of the grown crystals were discussed.