Supratim Mitra

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Questions related from Supratim Mitra

What could be the possible reason for this different microstructure?

I've prepared the following ceramics: Sample ID = Composition LMT = Li2Mg3TiO6 LMCT = Li2(Mg2.88Ca0.12)TiO6 LMCT-MN = Li2(Mg2.88Ca0.12)(Ti0.95(Mg1/3Nb2/3)0.05)O6 LMT-MN =...

08 April 2024 4,774 2 View

How electrospun PVDF nanofiber membrane soak PVA/H3PO4 electrolyte solution?

I'm preparing piezo separator for self charging device, where I'm using PVA/H3PO4 as gel electrolyte. But, unable or uncertain about soaking of PVA/H3PO3 solution to soak electrospun PVDF...

27 July 2023 9,655 0 View

Why frequency dispersion is occurring at high frequency and below ferro-para transition temperature?

Above loss peak, dielectric relaxation is characterized by Jonscher power law. In our sample a low-frequency dispersion is observed (slope < -1) in e' and e" both, however not understood why at...

12 February 2016 3,760 0 View

How do I find a large signal d33* value for a S-E hysteresis loop which is not closed or have some remnant strain?

In general, large signal d33* is measures by Smax/Emax from S-E hysteresis loop of a unipolar strain curve. However, if the unipolar strain curve has some remnant strain or the strain loop is not...

20 May 2015 3,042 6 View

Can a minor secondary phase near MPB lead to non uniform grain size distribution?

When a binary system forms a Morphotropic Phase Boundary (MPB), and if a minor secondary phase exists near MPB throughout, can it leads to a non uniform grain size distributions. Is it one of the...

19 August 2014 1,995 1 View

How are cell parameters of different structures represented in terms of pseudocubic or cubic cell parameters?

For comparison, lattice parameters of different structures (orthorhombic, rhombohedral, tetragonal) are presented in terms of pseudocubic or cubic subcell parameters? How to do that? then what...

05 January 2014 4,696 13 View

Can anyone tell me how morphotropic phase composition influences the diffuse phase transition in ferroelectrics?

Diffuse phase transition in ferroelectrics (not a relaxor ferroelectrics) is due to cationic disorder in A or B site, whereas morphotropic phase composition is associated with coexisting of two...

06 December 2013 6,005 7 View