Journal of Pure and Applied Ultrasonics

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Ultrasonic, XRD and Micro-Hardness Studies on Single Crystal of Aluminum Ammonium Sulfate (AAS)


Affiliations
1 Department of Physics, RKM Vivekananda College, Mylapore, Chennai-600004, India
2 Department of Physics, D.G. Vaishnav College, Chennai-600106, India
3 Department of Physics, Urumu Dhanalakshmi College, Trichy, Tiruchirappalli-620019, India
 

Single crystal of aluminum ammonium sulfate has been grown. Crystals are subjected to X-ray diffraction analysis and Acoustical studies. Acoustical studies are made before and after crystal growth formation. Acoustical parameters like acoustical impedance (Z), free length (Lf), compressibility (β), relaxation time (τ), attenuation (α), coefficient of absorption (α/f2) are determined from velocity, density and viscosity measurements. The crystal is formed at 0.453 gm/ml and interesting changes in physical and chemical properties takes place. The smaller value of Hardness refers to soft crystal. Surface morphology of the crystal grown was studied by scanning electron microscope (SEM). From the observation of fluorescence spectra the luminescence properties of planar single crystal of AAS is studied. XRD studies confirm crystal belongs to cubic system. The cell parameters are a = 24.56A°, b = 24.56A°, c = 24.56A°, α = β = γ = 90°°, volume 14815A03.

Keywords

Crystal Growth, XRD, Micro Hardness Studies, Ultrasonic Studie, Aluminum Ammonium Sulfate.
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  • Lal B., Bamzei K.K., Kotru P.N. and Wanklyn B.M. Microhardness, fracture, mechanism and dielectric behaviour of flux grown GdFeO3 Single crystal, Mat. Chem. Phys. 85 (2004) 353-365.

  • He X.H., Yong Y.M., Yu G.Z., Zhang G.J., Yang C. and Jin X. Adsorption of ceprolectam on surface of ammonium sulfate crystal. J. Chem. Indust. Engg. 61(11) (2010) 2849-2854.

  • Mullin J.W., Chakroborty M. and Mehta K. Nucleation and growth of ammonium sulfate crystal from aqueous solution. J. Appl. Chem. 20 (1970) 367-371.

  • Maeda K., Tabuchi R., Asakuma Y. and Fukui K. Distribution of metallic ions in a single KDP crystal grow from aqueous. Cryst. Res. Technol. 41(10) (2006) 955-960.

  • Davey R.J. and Mulli J.W. Growth of the {100} face of ammonium dihydrogen Phosphate Crystal in the presence of Ionic Species. J. Crystal growth 26 (1974) 203-208.

  • Su G., Zhuang X.X., He Y.P., Li Z.D., Wang G.F., Li G.H. and Huang Z.X. A new single crystal of iron nickel sulfate twelve hydrate used as optical band pass filters. J. Crystal Growth 42 (2002) 238-242.

  • Su G., Zhuang X., He Y., Li Z. and Wang G. Ammonium nickel sulfate crystal: a new ultraviolet light filter. J. Physics D. 35 (2002) 2652-2655.

  • Baviskar S.J. and Bhavsar D.S. Growth and characterization ofammonium nickel sulfate crystal grown by gel technique. Arch Appl Sci Res. 3 (2011) 279-284.

  • Vasudevan G., Anbusrinivasan P., Madhurambal G. and Mojumdar S.C. Thermal analysis effect of dopants spectral characterization and growth aspect of KAP crystals. Therm Anal Calorim. 96 (2009) 99-102.

  • Chemla D.S. and Zyss J. Optical properties of Organic Molecules and Crystal, New York, 1991.

  • Jordes J., Appermont T., Gielen B., Van Gerven T. and Breaken L. Sono fragmentation: Effect of ultrasound frequency and power on particle breakage . Cryst .Growth Des. 16 (2016) 6167-6177.

  • Su C.S., Liao C.Y. and Jheng W.D. Particle size control and crystal habit modification of phenacetin using ultrasonic crystallization. Chem. Eng. Technol 38 (2015) 181-186.


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  • Ultrasonic, XRD and Micro-Hardness Studies on Single Crystal of Aluminum Ammonium Sulfate (AAS)

Abstract Views: 330  |  PDF Views: 2

Authors

N. Dharani Rajan
Department of Physics, RKM Vivekananda College, Mylapore, Chennai-600004, India
S. Jayakumar
Department of Physics, RKM Vivekananda College, Mylapore, Chennai-600004, India
S. Krishnan
Department of Physics, RKM Vivekananda College, Mylapore, Chennai-600004, India
G. M. Rajesh
Department of Physics, RKM Vivekananda College, Mylapore, Chennai-600004, India
Sylaja
Department of Physics, D.G. Vaishnav College, Chennai-600106, India
R. Sambasivam
Department of Physics, Urumu Dhanalakshmi College, Trichy, Tiruchirappalli-620019, India

Abstract


Single crystal of aluminum ammonium sulfate has been grown. Crystals are subjected to X-ray diffraction analysis and Acoustical studies. Acoustical studies are made before and after crystal growth formation. Acoustical parameters like acoustical impedance (Z), free length (Lf), compressibility (β), relaxation time (τ), attenuation (α), coefficient of absorption (α/f2) are determined from velocity, density and viscosity measurements. The crystal is formed at 0.453 gm/ml and interesting changes in physical and chemical properties takes place. The smaller value of Hardness refers to soft crystal. Surface morphology of the crystal grown was studied by scanning electron microscope (SEM). From the observation of fluorescence spectra the luminescence properties of planar single crystal of AAS is studied. XRD studies confirm crystal belongs to cubic system. The cell parameters are a = 24.56A°, b = 24.56A°, c = 24.56A°, α = β = γ = 90°°, volume 14815A03.

Keywords


Crystal Growth, XRD, Micro Hardness Studies, Ultrasonic Studie, Aluminum Ammonium Sulfate.

References