138 citations · 248 across the 10 of their papers we have counts for
11 papers
Manipulation of ferroelectric and magnetic properties properties of single phase Bi4Ti3O12-3BiFeO3 solid solution through La substitution
K. R. S. Preethi Meher, K. B. R. Varma
In this work, the potential to exploit Aurivillius higher order composition (n=6) given by Bi4Ti3O12-3BiFeO3 as single phase and high temperature magnetoelectric materials are well…
Structural and dielectric properties of glasses in the system TeO2-CaCu3Ti4O12
P. Thomas, K. B. R. Varma
The glasses in the system (100-x)TeO2-xCaCu3Ti4O12, (x=0.25 to 3 mol %) were fabricated. The color varied from olive green to brown as the CaCu3Ti4O12 (CCTO) content increased in T…
Synthesis of Nanoparticles of the Giant Dielectric Material, CaCu3Ti4O12 from a Precursor Route
P. Thomas, K. Dwarakanath, K. B. R. Varma +1
A complex oxalate precursor, CaCu3(TiO)4(C2O4)8.9H2O, was synthesized and the precipitate that obtained was confirmed to be monophasic by the wet chemical analyses, X-ray diffracti…
Fabrication and Characterization of Poly(methyl methacrylate)CaCu3Ti4O12 Composites
P. Thomas, R. S. Ernest Ravindran, K. B. R. Varma
Composites comprising Poly(Methyl Methacrylate) (PMMA) and CaCu3Ti4O12 (CCTO) via melt mixing followed by hot pressing were fabricated. These were characterized using X-ray diffrac…
Dielectric properties of Poly(methyl methacrylate) (PMMA)/CaCu3Ti4O12 Composites
P. Thomas, R. S. Ernest Ravindran, K. B. R. Varma
Materials with high dielectric constant are in great demand for the miniaturization of electronic devices. More specifically, high dielectric constant polymer-ceramic composites ar…
Nanoparticles of the giant dielectric material, CaCu3Ti4O12 from a precursor route
P. Thomas, K. Dwarakanath, K. B. R. Varma +1
A method of preparing the nanoparticles of CaCu3Ti4O12 (CCTO) with the crystallite size varying from 30 to 200 nm is optimized at a temperature as low as 680 1C from the exothermic…