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37 results on '"Parashar, S.K.S."'

18. Growth of significantly low dimensional zinc orthotitanate (Zn2TiO4) nanoparticles by solid state reaction method

Author

Khatua Lizina, Panda Rudrashish, Singh Avanendra, Nayak Arpan Kumar, Satapathy Pravakar, Pradhan Debabrata, Sahoo Kumar Pratap, Parashar S.K.S., and Das Kumar Susanta

Subjects
Zinc orthotitanate, solid state reaction, Chemical technology, TP1-1185
Abstract

In this work, the ZnO-TiO2 mixed phase nanoparticles were prepared by solid state reaction method by using ZnO and TiO2 powder as precursors. The X-ray diffraction pattern shows a dominant phase of Zinc Orthotitanate (Zn2TiO4). The average particle size (58±18 nm) calculated by the analysing FESEM data closely matches with the particle size calculated by Scherrer’s equation. The calculated average particle size is significantly smaller than the previously published results of nanoparticles, prepared by same method. In the Brunauer-Emmett-Teller (BET) study the specific surface area of the nanoparticles was found as 8.78 m2/g which is similar to the surface area reported in this material prepared by mechanochemical method. The method which we report is simpler and cost effective unlike the previous reported.

Published
2018
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23. Size effect of Pb(sub 0.92)Nd(sub 0.08)(Zr(sub 0.53)Ti(sub 0.47))(sub 0.98)O(sub 3) nanoceramic synthesized by high-energy ball milling

Author

Parashar, S.K.S., Choudhary, R.N.P., and Murty, B.S.

Subjects
Lead compounds -- Electric properties, Lead compounds -- Thermal properties, Titanates -- Thermal properties, Titanates -- Electric properties, Neodymium -- Electric properties, Neodymium -- Thermal properties, Physics
Abstract

The nanocrystalline Pb(sub 0.92)Nd(sub 0.08)(Zr(sub 0.53)Ti(sub 0.47))(sub 0.98)O(sub 3)(PNZT) is synthesized by high-energy ball milling (mechanical alloying). The analysis of impedance and dielectric properties of PNZT as a function of temperature has showed the high permittivity of 10626 at 10 kHz at the Curie temperature (Tc), broadening of permittivity peak, lowering of Tc, decrease in conductivity and increase in relaxation time with the decrease in crystalline size.

Published
2005

31. Ferroelectric phase transition in Pb0.92Gd0.08(Zr0.53Ti0.47)(sub 0.98)O3 nanoceramic synthesized by high-energy ball milling

Author

Parashar, S.K.S., Choudhary, R.N.P., and Murty, B.S.

Subjects
Titanium -- Chemical properties, Gadolinium -- Chemical properties, Lead -- Chemical properties, Physics
Abstract

The nanocrystalline Gd-doped lead titanium zirconate (PGZT) with a high dielectric constant was synthesized by a combination of ball milling and sintering. The dielectric parameters of PGZT are decided significantly by the crystallite size according to the results obtained.

Published
2003

37. Nuclear Fusion

Author

Mahmood Ghoranneviss, S. K. S. Parashar, Necdet Aslan, Morteza Aslaninejad, A. Salar Elahi, Ghoranneviss, M., Parashar, S.K.S., Aslan, N., Aslaninejad, M., Salar Elahi, A., and Yeditepe Üniversitesi

Subjects
Article Subject, General Engineering, lcsh:TA401-492, General Materials Science, lcsh:Materials of engineering and construction. Mechanics of materials
Abstract

[No abstract available]

Published
2014

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