Ke Zhang
Henan Normal University
Crystal structureAnalytical chemistryParamagnetismDielectricCeramicPhase transitionValence (chemistry)Tetragonal crystal systemX-ray photoelectron spectroscopyMaterials scienceOrthorhombic crystal systemCrystalDopingCurie temperaturePolaronFerroelectricityCrystallographyDiamagnetism
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Publications 2
Newest
#1Guilin Song (Henan Normal University)H-Index: 2
#2Lei Chen (Henan Normal University)
Last. Na Zhang (Henan Normal University)H-Index: 3
view all 7 authors...
Abstract null null KNb1-xFexO3(x = 0–0.2) ceramics are prepared by the self-sacrificing method. The effects of Fe ion doping on the ferroelectricity, and magnetic properties of KNbO3 are studied. XRD analysis shows that all samples belong to the single-phase orthorhombic system with the space group of Amm2. The XPS test proves that Fe ions exist in the form of +2 and + 3 valence in KNbO3 sample, and the ratio of Fe2+/Fe3+ in the sample is calculated. SEM shows that Fe ions doping has a significa...
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#1Guilin Song (Henan Normal University)H-Index: 2
#2Yichen Song (SEU: Southeast University)H-Index: 1
Last. Na Zhang (Henan Normal University)H-Index: 3
view all 7 authors...
Abstract K1-xCaxNbO3 (x = 0–0.2) ceramic samples were prepared by self-sacrifice method to study the effects of Ca2+ doping on the crystal structure, dielectric properties and magnetic phase transition of KNbO3. XRD analysis showed that all samples belong to a single-phase orthogonal crystal system with a spatial group of Amm2. The valence states of K, Nb and O elements, the atomic proportion in K1-xCaxNbO3 (x = 0–0.2) samples, and the relationship between the binding energies of K, Nb and O and...
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