usha praveena V J

EDUCATION

M., M.Phil, Ph.d

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanics of Materials, Bioengineering, Multidisciplinary, Mechanics of Materials

Scopus Publications

In vitro antioxidant activity and electro analytic approach on Indigofera tirunelvelica Sanjappa
S. Parijatham Kanchana, Usha Praveena V.J, and Sr. Sandra Horta
Elsevier BV



Effect of synthesis on properties of Gd doped LaBi<inf>5</inf>Fe<inf>2</inf>Ti<inf>3</inf>O<inf>18</inf>
Usha Praveena, V.J.B. Vijaya Kumar, N.V. Prasad, G Prasad, and G.S. Kumar
Elsevier BV



Electrical studies on double rare earth modified Bi<inf>6</inf>Fe<inf>2</inf>Ti<inf>3</inf>O<inf>18</inf>
Usha Praveena V. J., N. V. Prasad, G. Prasad, and G. S. Kumar
Informa UK Limited
ABSTRACT Single-phase bismuth layered structure ferroelectromagnet (BLSFEM) LaGdxB5-xFe2Ti3O18 of composition (x = 0.1, 0.2, 0.4, 0.6 and 0.8), novel ceramics were prepared by solid state route. Electrical and impedance measurements were made on the ceramics. Complex Impedance spectroscopic plots showed the signature of magnetic ion (Gd) and the results were corroborated to the Debye and Gaussian fitting curves. The variation of dielectric and modulus with temperature plots were used to explain dielectric phenomenon. An attempt is made to understand the effect of magnetic (Gd) ion on A site of (Bi2O2)2+ (LaGdxBi3-xTi3Fe2O16)2−, layered perovskite (title) compound.

RECENT SCHOLAR PUBLICATIONS

Carbon‐Based Nanomaterials in Energy Storage Devices: Supercapacitors
S Chander, VJ Usha Praveena, M Mangal
Carbon‐based Nanomaterials for Green Applications, 307-329 2024



Fundamentals of Solid-State Physics
VJU Praveena, S Chander
Defects Engineering in Electroceramics for Energy Applications, 1-29 2024



Structural electrical and antimicrobial properties of nano copper oxide doped with Tirunelvelica Sanjappa leaves
SPK Shubha L.N, Usha Praveena V J
International Journal of natural and Engineering Sciences 17 (2023-2), 63-69 2023



In vitro antioxidant activity and electro analytic approach on Indigofera tirunelvelica Sanjappa
SP Kanchana, UP VJ, SS Horta
Materials Today: Proceedings 92, 1283-1288 2023



Electrical and Dielectric Study of Epoxy Resin
LNSSB Usha Praveena.V J, S.Sarika Yadav
Indian Journal of Natural Sciences 13 (74), 48067-48072 2022



Influence of calcium titanate on dielectric and ferroelectric properties of lead-free NBT-based composites
AR Malathi, MS Murthy, VJU Praveena, G Prasad
Emergent Materials 5 (1), 241-247 2022



Vogel Fulcher analysis of electrical studies of NBT-CT ceramic composites
AR Malathi, VJU Praveena, MS Murthy, G Prasad
Materials Today: Proceedings 59, 449-458 2022



TRANSFORMING RURAL WOMEN TO BE THE DIGITAL LEADERS OF TOMORROW- A REVIEW
SB USHA PRAVEENA, SARIKA YADAV
JOURNAL OF EDUCATION: RABINDRABHARATI UNIVERSITY 23 (3), 33-40 2021



Effect of synthesis on properties of Gd doped LaBi5Fe2Ti3O18
U Praveena, VJBV Kumar, NV Prasad, G Prasad, GS Kumar
Materials Today: Proceedings 11, 1041-1048 2019



Electrical studies on double rare earth modified Bi₆Fe₂Ti₃O₁₈
U Praveena VJ, NV Prasad, G Prasad, GS Kumar
Ferroelectrics 514 (1), 61-69 2017



Impedance Spectroscopic Studies On LaGd0.1Bi4.9Fe2Ti3O18 Ceramic
GSK Usha Praveena V. J, N V Prasad , G Prasad
International Journal of Engineering Research 3 (3), 6-11 2015



Synthesis, mechanism and applications of gas sensors-A comprehensive study
SS Yadav, VJ Usha Praveena, P Nagaraju, S Begum

MOST CITED SCHOLAR PUBLICATIONS

Vogel Fulcher analysis of electrical studies of NBT-CT ceramic composites
AR Malathi, VJU Praveena, MS Murthy, G Prasad
Materials Today: Proceedings 59, 449-458 2022
Citations: 5



Effect of synthesis on properties of Gd doped LaBi5Fe2Ti3O18
U Praveena, VJBV Kumar, NV Prasad, G Prasad, GS Kumar
Materials Today: Proceedings 11, 1041-1048 2019
Citations: 2



Electrical studies on double rare earth modified Bi₆Fe₂Ti₃O₁₈
U Praveena VJ, NV Prasad, G Prasad, GS Kumar
Ferroelectrics 514 (1), 61-69 2017
Citations: 2



Influence of calcium titanate on dielectric and ferroelectric properties of lead-free NBT-based composites
AR Malathi, MS Murthy, VJU Praveena, G Prasad
Emergent Materials 5 (1), 241-247 2022
Citations: 1