Elastic Properties and Structural Studies on Boro-Vanadate Glasses Containing Sulphate (SO{sub 4}{sup 2-}) Ions

Journal Article · Mon Dec 12 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3653683· OSTI ID:21612349

Reddy, M Sudhakar ^[1]; Gowda, V C. Veeranna ^[2]; Reddy, C Narayana ^[3]

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1. Department of Physics, Sri Bhagavan Mahaveer Jain College, Jain University, Bangalore-560027 (India)
2. Department of Physics, Government College for Women's, Chintamani-563125 (India)
3. Department of Physics, Maharani's Science College for Woman, Palace Road, Bangalore-560001 (India)

Elastic properties of xLi{sub 2}SO{sub 4}-16 Li{sub 2}O-(84-x) [0.7 B{sub 2}O{sub 3}-0.3 V{sub 2}O{sub 5}] where (5{<=}x{>=}30) glasses have been prepared by melt quenching method and structural investigations were carried out using ultrasonic pulse echo overlap technique at a frequency of 10 MHz and at 300 K. The molar volume increases and the density decreases with the increase of Li{sub 2}SO{sub 4} concentration due to the incorporation of SO{sub 4}{sup 2-} ions into the modified macromolecular network. The addition of Li{sub 2}SO{sub 4} content leads to loose packing structure which is attributed to volume increasing effect and the reduction in the vibrations of borate and vanadate lattices. Increase in Li{sub 2}{sup SO}{sub 4} results in decreasing cross link density which in turn decreases elastic moduli. The results are discussed in view of its network structure. The structural groups [VOO{sub 3/2}]{sup 0} and [BO{sub 3/2}]{sup 0} modify preferentially. This preference in modification is decided by the electronegativity ({chi}) of the structural groups.

• OSTI ID: 21612349
• Journal Information: AIP Conference Proceedings, Vol. 1393, Issue 1; Conference: ICACNM-2011: International conference on advances in condensed and nano materials, Chandigarh (India), 23-26 Feb 2011; Other Information: DOI: 10.1063/1.3653683; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORON OXIDES
CONCENTRATION RATIO
CROSS-LINKING
ELASTICITY
ELECTRONEGATIVITY
GLASS
LATTICE VIBRATIONS
LITHIUM OXIDES
LITHIUM SULFATES
MOLECULAR IONS
VANADATES
VANADIUM OXIDES
ALKALI METAL COMPOUNDS
BORON COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
DIMENSIONLESS NUMBERS
IONS
LITHIUM COMPOUNDS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
POLYMERIZATION
SULFATES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS