Structure and electrical properties characterization of NiMn2O4 NTC ceramics

N Acharya, R Sagar - Inorganic Chemistry Communications, 2021 - Elsevier
Spinel-type NiMn 2 O 4 negative temperature coefficient (NTC) ceramic compound was
successfully prepared by the co-precipitation technique. The structure, microstructure, and …

Exploring the thermoelectric behavior of intrinsic and defect induced LaCoO3 with selected alkaline earth metals

S Muraleedharan, N Davis, R Althaf, A Singh… - Journal of Alloys and …, 2021 - Elsevier
Perovskite oxides of transition elements with multiple oxidation states have attracted
widespread attention owing to the formation of inherent defects. In addition, when modified …

Complex impedance and modulus studies of cerium doped barium zirconium titanate solid solution

R Sagar, RL Raibagkar - Journal of alloys and compounds, 2013 - Elsevier
Nanocrystalline powders of (Ba1− xCex)(Zr0. 52Ti0. 48) O3 [x= 0.1 and 0.2] have been
synthesized by conventional solid state reaction method. X-ray diffraction patterns confirm …

Thermally Coupled NTC Disc Thermistors for Power Applications

MZ Bodic, VM Rajs, SO Aleksic… - IEEE Sensors …, 2024 - ieeexplore.ieee.org
A pair of small disk negative thermal coefficient (NTC) thermistors were joined together
laterally using a thin layer of silicon resin between them to form a novel thermally coupled …

Comparative study on structure, dielectric and electrical properties of cobalt- and zinc-substituted Mn3O4 spinels

N Acharya, R Sagar - Applied Physics A, 2020 - Springer
In this paper, we report the comparative study of single-phase crystalline Mn 3 O 4, CoMn 2
O 4, and ZnMn 2 O 4 spinels prepared by a wet chemical co-precipitation technique. The …

Synthesis, structure and electrical studies of praseodymium doped barium zirconium titanate

R Sagar, S Madolappa, N Sharanappa… - Materials Chemistry and …, 2013 - Elsevier
Praseodymium (Pr) doped barium zirconium titanate with nominal composition (Ba1−
xPrx)(Zr0. 52Ti0. 48) O3 (x= 0.1 and 0.2) were synthesized using solid state reaction …

Structural and electrical studies of nanocrystalline Mn3O4

R Sagar - Ferroelectrics Letters Section, 2018 - Taylor & Francis
In this paper, we report synthesis, structural, microstructure and electrical study of Mn 3 O 4.
Manganese oxide in the form of Mn 3 O 4 was prepared by co-precipitation technique using …

Electrical and electrochemical characterization of FeCo2O4 nanoflakes for flexible supercapacitor applications

K Samatha, R Sagar - Bulletin of Materials Science, 2024 - Springer
Iron-substituted cobalt oxide spinel in the form of FeCo2O4 nanoflakes was synthesized by
using a wet-chemical co-precipitation process. The presence of a metal-oxide bond was …

Influence of temperature on frequency dependent electrical behavior of FeMn2O4

N Acharya, R Sagar - Journal of Physics: Conference Series, 2019 - iopscience.iop.org
Here, we report the influence of temperature on frequency dependent electrical properties of
FeMn 2 O 4. The epsilon'decreases with increasing frequency in all studied temperatures …

Effect of gadolinium on the dielectric and pyroelectric behavior of Ba(Zr0.52Ti0.48)O3 ceramics

R Sagar, RL Raibagkar - Ferroelectrics Letters Section, 2019 - Taylor & Francis
The microstructure, dielectric and pyroelectric properties of pure and Gd3+-doped barium
zirconium titanate in the form of Ba (Zr0. 52Ti0. 48) O3 and (Ba1-xGdx)(Zr0. 52Ti0. 48) O3 …