[PDF] Top 20 Effect of Fe Substitution on the Structural, Electrical and Dielectric Properties of La0 70Ca0 30MnO3 Cathode for SOFCs

... IV. CONCLUSIONS (La 0.70 Ca 0.30 )(Fe x Mn 1-x )O 3 where x = 0.10 - 0.40 sample show a orthorhombic perovskite structure with Pnma space group. Solid state reaction method was used to prepare the samples. SEM ... See full document

... smaller structural parameters for the sample with G/N = 2, could be explained because an increase of the fuel/oxidant ratio gives rise to changes in the perovskite structure, varying the oxygen vacancy ...of ... See full document

... Doping; Dielectric Properties; DC Electrical Resistivity; Frequency Dependence ...show electrical be- havior analogous to the magnetic behavior of ferromag- nets are called ...The ... See full document

... piezoelectric properties. The values for piezoelectric properties such as charge coefficient (d 33 ) and coupling factors (k p ) for the PLZT electro-ceramics were found to be very good and are listed in ... See full document

... The substitution of trivalent aluminium in Sr-Y type hexaferrite is considered to be an important for the enhancement of its magnetic and electrical ...x Fe 12-x O 22 (x = 2-10) were prepared by high ... See full document

... Where R is electric resistance, A is area of specimens and L is length of specimens. The structure properties of the 1223-phase was checked using X-ray diffraction technique using (Shimadzu XRD-6000) ... See full document

... size effect and the large surface e magnetic properties and exhibit superparamagnetism, because each particles can be considered ...dielectrical properties of nickel substituted copper zinc ferrite ... See full document

... [1].The structural and magnetic properties of spinel ferrites depend on the magnetic interaction and cation distribution in the two sub-lattices ...and electrical properties are affected by ... See full document

... vi In recent years, there is an urgent need for the development of lead-free alternative ferroelectrics to replace the most dominant lead-based ferroelectrics (e.g., Lead zirconate titanate (PZT)) due to the toxicity of ... See full document

... reliable electrical prop- erties such as low leakage currents and excellent C-V characteristics with an AlN IL between the HfO 2 gate dielectric and Ge substrate, rather than Ge-surface nitrida- tion, due ... See full document

... Micro structural Analysis XRD analysis of untreated and treated samples was performed by X-ray diffractometer (Bruker D-8 Advance Diffractometer with a computer ...for electrical conductivity ... See full document

... magnetic properties of Pr- Co-Fe ...the effect of partial substitution of Co by Fe on Pr 2 Co 7-x Fe x structural and magnetic properties, where x = ...after ... See full document

... the dielectric loss was observed in literature ...The structural parameters of prepared nanoparticles have been influenced after laser ...the dielectric properties also ... See full document

... 2. Experimental Ba 2+ doped BFO was synthesized using sol-gel method [8] [14] [15]. The A.R Grade citric acid (C 6 H 8 O 7 ∙H 2 O), bismuth nitrate (Bi(NO 3 ) 3 ∙5H 2 O), barium nitrate (Ba(NO 3 ) 3 ∙4H 2 O), ferric ... See full document

... Wavelength (cm-1) BCFMO RESULTS AND DISCUSSION In the present work a systematic and detailed study of the lead free ceramic BCFMO (Bi 0.85 Ca 0.15 Fe 0.85 Mn 0.15 O 3 ) was successfully done. The shape f the ... See full document

... structure. Fe doped derivatives of MgAl 2 O 4 (range of Fe concentration from 1 to 12%) were prepared by adding the appropriate stoichiometric amounts of Fe(NO 3 ) 3 ... See full document

... Structural optimizations were performed until the residual force acting on each ion was less than 0.01 eV A 1 . All calculations were carried out using the Vienna ab initio simulation package (VASP). 24 For the ... See full document

... 2. Experimental 2.1. Synthesis Technique Nanocrystalline powders of Ni 0.6 Co 0.4 Fe 2-x Al x O 4 (x = 0.0, 0.1, 0.3, 0.5 and 0.7) were prepared by sol-gel auto-igni- tion method. The A.R grade Citric acid (C 6 H ... See full document

... 共 Fe–Ga 兲 as an active material led to a vigorous area of research in Fe-based ...alloys. Fe–Ge, a binary alloy that emerged from that effort, 1 helped elucidate some of the unsolved questions of ... See full document

... polarization effect and hopping, i.e. a polarization effect since the nickel concentration is insufficient to form an infinite conducting network ... See full document