Influence of process parameters on the optimisation of crystalline phase, size and strain of multiferroic Bismuth Iron Tri Oxide (BiFeO3) nanoceramics: A MCDM based TOPSIS approach

A Comparative Analysis on the Crystalline Behavior, Topographical, Photoluminescence, and Leakage Current Characteristics of BiFeO3 Nanopowders and Thin Films

“…The monophase results obtained at a specific calcination temperature and dwelling time once again ascertained our earlier report on the optimized environment conditions required to produce BFO ceramics. [ 19 ] The estimated lattice parameters computed for BFO in powder form Maud analysis [ 20 ] are given as; a = b = 5.577 (2) Ȧ, c = 13.861(3) Ȧ and α = β = 90°, γ = 120° and in respect of thin films state, it exhibits with the values of a = b = 5.577 (4) Ȧ, c = 13.641(5) Ȧ and α = β = 90°, γ = 120°. The average crystallite size ( D ) and strain ( ɛ ) were calculated from Williamson–Hall (W–H) plots.…”

“…The monophase results obtained at a specific calcination temperature and dwelling time once again ascertained our earlier report on the optimized environment conditions required to produce BFO ceramics. [19] The estimated lattice parameters computed for BFO in powder form Maud analysis [20] plots. [21][22][23] W-H plots usually represents a graphical drawn between 𝛽 cos 𝜃 (Y-co-ordinate) and 4sin 𝜃 (X-co-ordinate) with the aid of collinear data points, linear fit has been made followed by to determine the crystallite size, intercept, slope (crystalline strain), and dislocation density of the BFO powder and thin films.…”

“…The research gap lies in the complete absenteeism on a comparative study on the electrical, structural and spectral properties of both thin films and ceramic structure of the same compound such as BFO. In our previous reports, the synthesis of BFO ceramics was already optimized using the Multi‐Criteria Decision‐Making (MCDM)‐based Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) approach, [ 19 ] wherein an optimum temperature of 500 °C was utilized to obtain the single‐phase BFO ceramic powders. The same procedure has been reiterated here for the synthesis of BFO nanopowders.…”

Determination of Objective Weights Using a New Method Based on the Removal Effects of Criteria (MEREC)

“…Ramasamy et al [39] applied the TOPSIS method in research for choosing the optimized set of experimental conditions to synthesize Bismuth Iron Tri Oxide (BiFeO 3 -BFO) nano-powder using the sol-gel route based on changing time duration and slotted calcination temperature. Their study's main goal was to identify the optimum time duration and slotted calcination temperature required to get single-phase powders with minimum strain and crystallite size.…”

Effects of calcination and sintering processes on structural profile parameters of modified BNKT-based ferroelectric ceramics

“…However, during the synthesis process at high temperatures, the volatile nature of Lead caused serious environmental pollution [7] which induced immediate research to develop many lead-free advanced ceramics for various application purposes. So much research work has been done and is ongoing to enhance the properties of conventional eco-friendly ceramics such as BaTiO 3 [8], Bi 0.5 Na 0.5 TiO 3 [9], K 0.5 Na 0.5 NbO 3 [10], BiFeO 3 [11], SrTiO 3 [12], Bi 0.5 K 0.5 TiO 3 [13] that could have efficiency comparable to that of lead-based ceramics [1]. Though there are notable advancements in this area, no lead-free materials could meet the efficiency similar to leadbased materials to serve as a practical substitute for electro-ceramics applications [14][15][16][17][18].…”