Crystal Structure, Dielectric Response and Thermal analysis of Ammonium Pentaborate (APB)

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Hiral Raval, Mitesh Solanki, Bharat Parekh, M.J. Joshi (2017). Crystal Structure, Dielectric Response and Thermal analysis of Ammonium Pentaborate (APB)Mechanics, Materials Science & Engineering, Vol 9. doi:10.2412/mmse.49.16.644

Authors: Hiral Raval, Mitesh Solanki, Bharat Parekh, M.J. Joshi

ABSTRACT. Nonlinear optical material Ammonium Pentaborate (APB) crystals have been grown using slow evaporation method from aqueous solution. From Powder XRD analysis the orthohrombic crystal structure was found. Various vibrations in FTIR spectrum were assigned. Thermo gravimetric analysis suggested that the crystal remained stable up to 173℃ and then decomposed through various stages and endothermic reactions were identified by DTA. The variation of dielectric constant, dielectric loss and ac conductivity with frequencies was studied at room temperature. Further investigation of dielectric properties with higher temperature is under progress.

Keywords: Crystal Growth, Borates, slow evaporation, XRD analysis, FTIR, Thermal and Dielectric properties.

DOI 10.2412/mmse.49.16.644


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