Specialization :   Solid State Chemistry

Our research is involved with the synthesis and characterization of oxide-based electroceramics. The properties and applications of many electroceramics depend on the close control of the crystal structure, composition, ceramic microstructure, dopant and dopant (or defect) distribution. Materials of well-defined composition are synthesized by using different chemical routes and characterized by a variety of studies like X-ray powder diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDX), FTIR, analytical and thermal techniques (TGA/DTA) and X-ray Photoelectron Spectroscopy (XPS). The electrical and dielectric properties are usually characterized by AC Impedance spectroscopy and Electrometer with variation of frequency and temperature.

Major Achievements:


Recent Publications:

  • Microstructure and Magnetic Properties of Y2/3 Cu3Ti4O12 ceramic Sunita Sharma, M.M. Singh and K.D. Mandal, New J. Chemistry, 41 (2017) 10383-10389 (DOI: 10.1039/c7nj02122d).
  • Megnetic and Dielectric Properties of Lanthanum doped Yttrium Copper Titanate Ceramic Sunita Sharma, M.M. Singh and K. D. Mandal, New J. Chemistry, 41 (2017) 6359 - 6370.
  • Dielectric ferroelectric and magnetic study of iron doped hexagonal Ba4YMn3O11.5-δ(BYMO)andits dependence on temperature as well as frequency. Shiva Sunder Yadava, Ankur Kahare, Pooja Gautam, Atendra Kumar and K.D. Mandal, New J. Chemistry, 41(2017) 4611 - 4671.
  • One Pot Synthesis of Zinc Doped Yttrium Copper Titanate by Semi-wet Route exhibiting Enhanced Dielectric Constant and Suppressed Dielectric Loss, Sunita Sharma, M.M. Singh and K.D. Mandal, Materials Chemistry Frontiers, 1 (2017) 1165 - 1178, (DOI: 10.1039/C6QM00224B, 2017).
  • Dielectric and ferroelectric study of La5Ti4O15 synthesized by semi-wet route shiva sunder Yadav, Ankur Khare, Pooja Gautam and K.D. Mandal, Nanomatierials and Energy, 5 (2017) 113 - 117.
  • Effect of sintering on the dielectric properties of 0.5BaTio3 - 0.5Bi2/3Cu3Ti4o12 nanocomposite synthesized by solid state route, Ankur Khare, Shiva Sundar Yadava, Pooja Gautam, N.K. Mukhopadhyay, K. D.Mandal, Journal of Materials Science: Materials in Electronics, 28 (2017) 5523 - 5530. 
  • Dielectric and Magnetic studies of  0.5Bi2/3Cu3Ti4O12 – 0.5Bi3LaTi3O12 nanocomposite ceramic synthesized by semi-wet route Pooja Goutam, K. D. Mandal, Ceramic International, 43 (2017) 3133 - 3139.
  • Dielectric studies 0.5BaTiO3–0.5 Bi2/3Cu3Ti4O12nanocomposite, Ankur Kahare, Shiv Sunder Yadav, N. K. Mukhopadhyay and K.D. Mandal, Nanomaerials and Energy, 5 (2017) 108-112.
  • Characterization of Bi2/3Cu3Ti4O12 ceramics Synthesized by Semi-wet Route Pooja Gautam, Ankur Khare, Sunita Sharma, N.B. Singh and K.D. Mandal, Progress in Natural Science: Materials International 26 (2016) 567-571.
  • Comparison of Grain size effects on microstructure and dielectric properties of Y2/3Cu3Ti4-xFexO12 (x=0.05, 0.15) ceramic synthesized by glycine assisted Semi-wet route. Sunita Sharma, M.M. Sigh and K. D. Mandal, Ceramic Transactions 259 (2016) 117-129. 
  • Dielectric, Ferroelectric and Magnetic Properties of Hexagonal Ba6Y2Ti4O17(BYTO) perovskite Derived from Semi Wet Route, Shiv Sunder Yadav, Ankur Khare, Pooja Gautam, Laxman Singh, Youngil Lee and K. D. Mandal, RSC Advances 6 (2016) 104941-104948.
  • Structural, impedance, and modulus spectroscopic studies on Y2/3Cu3ti3.95InO.05O12 polycrystalline material prepared by flame synthesis method, Laxman Singh, Byung Cheol Sin, Won Kim, K. D. Mandal, Hoeil Chung and Youngil Lee, Applied Spectroscopy Reviews, 51 (2016 IF 4.2) 735-752.
  • Comparative dielectric and ferroelectric characteristics of Bi0.5Na0.5TiO3, CaCu3Ti4O12 and 0.5Bi0.5Na0.5TiO3/0.5CaCu3Ti4O12 electro-ceramics Laxman Sigh, Youngil Lee, K. D. Mandal, Journal of Electronic Materials 45 (2016) 2662-2672.
  • Effect of temperature on dielectric and ferroelectric properties of nanocrystalline hexagonal Ba4YMn3O11.5δceramic synthesized by chemical route , Shiva Sunder Yadavaa, Laxman Singhb , Sunita sharmaa, K.D. Mandala*, Narsing B. Singh, RSC Advances 6 (2016) 68247-68253.
  • Effect of sintering duration on the dielectric properties of 0.9BaTiO3-0.CaCu3Ti4O12 nanocomposite synthesized by solid state route, Ankur Khare, Shiv Sunder Yadav, K.D. Mandal and N. K. Mukhopadhayay, Microelectronic Engineering 164 (2016) 1-6. 
  • A Novel One-Step Flame Synthesis Method for Tungsten-Doped CCTO Laxman Singh, Byung Cheol Sin, Won Kim, K. D. Mandal, Hoeil Chung and Youngil Lee,J. Am. Ceram. Soc., 99 [1] (2016) 27-34.