Growth, Dislocations and Microhardness Studies on Glycine Hydrofluoride Nonlinear Optical Single Crystal
Glycine hydrofluoride (GHF), a semiorganic nonlinear optical crystal, of dimensions 16 × 4 × 5 mm3 were grown in a period of 15 days. The average growth rate along the longer edge of the crystal is 1.1 mm/day. The grown crystals were subjected to powder XRD, FTIR and DSC studies. DSC curve indicates that the crystal is thermally stable. Chemical etching studies were carried out for the first time and methanol was found to be the best suitable etchant. The Kurtz powder test indicates the second harmonic generation efficiency of GHF is 70% that of KDP crystal. The Vickers hardness studies indicate that the load independent hardness is about 62 kg/mm2. The behavior in the load-hardness curve is elucidated.
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Document Type: Research Article
Publication date: December 1, 2013
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