Search
Now showing items 1-5 of 5
Microstructural and electrical changes in nickel manganite powder induced by mechanical activation
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
Nickel manganite powder synthesized by calcination of a stoichiometric mixture of manganese and nickel oxide was additionally mechanically activated in a high energy planetary ball mill for 5-60 min in order to obtain a ...
Improving of the electrical and magnetic properties of BiFeO3 by doping with yttrium
(Pergamon-Elsevier Science Ltd, Oxford, 2016)
Bismuth ferrite is one of the most promising multiferroic materials, and the main barriers for exploiting all of its specific properties are difficulties in obtaining pure, high resistive material with nanosized grains. ...
Electrical properties of niobium doped barium bismuth-titanate ceramics
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
BaBi4Ti4-5/4xNbxO15 (BBNTx, x = 0.0.05, 0.15, 0.30) ceramics have been prepared by solid state method. XRD data indicate the formation of single-phase-layered perovskites for all compositions. SEM micrographs suggest that ...
Far infrared reflectance of sintered nickel manganite samples for negative temperature coefficient thermistors
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Single phase complex spinel (Mn, Ni, Co, Fe)(3)O-4 samples were sintered at 1050, 1200 and 1300 degrees C for 30 min and at 1200 degrees C for 120 min. Morphological changes of the obtained samples with the siDtering ...
Electrical properties of antimony doped barium titanate ceramics
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
Antimony doped barium titanate powders were synthesized by polymeric precursors method based on modified Pechini process. Obtained powders were pressed and sintered at 1300 degrees C for 8 h. XRD analysis showed the formation ...