Dr. S. Sasikumar

Dr. S. Sasikumar, M.Sc., M.Phil., Ph.D.

Post doctoral fellow, Multifunctional Laboratory, Department of Physics, International Research Centre, Kalasalingam Academy of Research and Education,                                   Krishnankoil - 626126.

Mobile: 99441 09443,
Email: sasikuhan@gmail.com

Research Topic:

Synthesis and characterization of BaTiO3 based solid solutions of lead free piezoceramics

About research Topic:
Piezoelectric materials with perovskite and related structures have been studied extensively on fundamental and technological aspects. Piezoelectric materials are commonly used in sensor and actuator technologies due to their unique ability to couple electrical and mechanical displacements, i.e., to change electrical polarization in response to an applied mechanical stress or mechanically strain in response to an applied electric field. The toxicity of lead-based piezoceramics has led researchers to develop new, environmental friendly piezoelectric materials as potential replacement for lead-based materials. During the last several years, new lead-free piezoelectric materials have been developed to replace the lead-based materials. The research topic fuscous the preparation of the lead-free ceramic solid solutions and characterize them using XRD, SEM, EDS, UV-Vis, dielectric, ferroelectric, piezoelectric measurements.

The crystal structure of these ceramics have been analyzed using charge density route and correlated with the other experimental measurements, primarily the piezoelectric measurement.

Materials interest:

BaTiO3, (Na,K)NbO3, (Nb,Bi)TiO3, (Ba,Ca)TiO3

List of publications:

1. Structure and charge density properties of (1-x)(Na1-yKyNbO3)-xBaTiO3 lead-free ceramic solid solution,
S. Sasikumar, R. Saravanan,
Journal of Electronic Materials, Springer, 46, 4187-4196 (2017) (I.F: 1.579).

2. Piezoelectric and ferroelectric properties of lead-free (1-x)(Na1-yKy)(Nb1-zSbz)O3-xBaTiO3 solid solution
S. Sasikumar, R. Saravanan, K. Aravinth,
Physica B: Condensed Matter, Elsevier, 512, 58-67 (2017) (I.F: 1.386).

3. Charge correlation of ferroelectric and piezoelectric properties of (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 lead-free ceramic solid solution
S. Sasikumar, R. Saravanan, S. Saravanakumar, K. Aravinth,
Journal Materials Science: Materials in Electronics, Springer, 28, 9950-9963 (2017) (I.F: 2.091).

4. Preparation, electronic structure and chemical bonding of lead-free (1-x)(K0.5Bi0.5)TiO3-xBaTiO3 solid solution
S. Sasikumar, R. Saravanan, S. Saravanakumar, M. Charles Robert,
Applied Physics A: Materials Processing, Springer, 124, 1-10, (2018) (I.F: 1.455).

5.Investigation on charge density, piezoelectric and ferroelectric properties of (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 lead-free piezoceramics
S. Sasikumar, R. Saravanan, S. Saravanakumar,
Journal Materials Science: Materials in Electronics, Springer, 29, 1198-1208 (2017) (I.F: 2.091).

6. Synthesis, Characterization and Charge Density Analysis of Lead Free Piezoceramics Na1-xKxNbO3
S. Sasikumar, R. Saravanan,
Novel Ceramic Materials, Ch.2, Materials Research Forum, Materials Research Foundations, USA, Vol.2, 14-26, (2016).

7. Synthesis and Charge Density Analysis of BaTiO3
S. Sasikumar, R. Saravanan,
Novel Ceramic Materials, Ch.14, Materials Research Forum, Materials Research Foundations, USA, Vol.2, 190-201, (2016).

8. Synthesis and Structural Characterizations of Na1-xKxNb0.95Sb0.05O3
S. Sasikumar, R. Saravanan,
Novel Ceramic Materials, Ch.15, Materials Research Forum, Materials Research Foundations, USA, Vol. 2, 202-212, (2016).

9. Piezoelectric and Ferroelectric Properties of Lead-free 0.9(Na0.97K0.03NbO3)-0.1BaTiO3 Solid Solution
S. Sasikumar, R. Saravanan, S. Saravanakumar,
Mechanics, Materials Science & Engineering, (Magnolithe GmbH), (2017), ISSN 2412-5954, DOI: 10.2412/mmse.47.30.332 (I.F: 0.2).

10. Electronic structure and chemical bonding in La1-xSrxMnO3 perovskite ceramics,
N. Thenmozhi, S. Sasikumar, S. Sonai and R. Saravanan,
Materials Research Express, IOP Science, 4, 046103 (2017) (I.F: 1.151)

11. Electronic structure and bonding interactions in Ba1-xSrxZr0.1Ti0.9O3 ceramics
Jegannathan Mangaiyarkkarasi, Subramanian Sasikumar, Olai Vasu Saravanan, and Ramachandran Saravanan,
Frontiers of Material Science, Springer, 11, 182-189 (2017) (I.F: 1.478)

12. Structural, optical and magnetic properties of Ga2-xFexO3Novel Ceramic Materials,Ch.3, M. Charles Robert, S. Sasikumar, S. Saravanakumar, R. Saravanan,
Materials Research Forum, Materials Research Foundations, USA, Vol.7, 21-30 (2017)

13. Study of Charge Density and Crystal Structure of co-doped LaCrO3 System
Thenmozhi, S. Sasikumar, R. Saravanan, Yen-Pei Fu

Mechanics, Materials Science & Engineering, (Magnolithe GmbH), Vol-9 (2), ISSN 2412-5954, (2017) (I.F: 0.2) DOI:10.2412/mmse.99.30.568N.