Related Experiment Video
Updated: Jul 4, 2026
Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties
Published on: August 15, 2015
Effect of V(2)O(5) on the sintering behavior, microstructure, and electrical properties of (Na(0.5)K(0.5))NbO(3)
1Department of Electronic Information Material, School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, P. R. China. panhongyan@shu.edu.cn
Abstract:
Well-sintered (Na(0.5)K(0.5))NbO(3)-x mol% V(2)O(5) ceramics (abbreviated as NKN-V) with fine electrical properties were successfully prepared by conventional solid-state reaction through the careful control of processing conditions. The sintering behavior, phase structure, and electrical properties of the V(2)O(5)-doped NKN ceramics were investigated. Results show that when the V(2)O(5) content is 0.6 mol%, the NKN ceramics attained the maximum density of 4.46 g/cm(3) (about 98.9% of the theoretical density) at 1060 degrees C, and therefore possessed enhanced electrical properties. But when the V(2)O(5) content continued increasing, the density decreased. The secondary phase (Na(2)V (6)O(16)) could be detected by XRD analysis in all samples except x = 0 mol%. The Curie temperature of the NKN-based materials was found to decrease with the increase of V(2)O(5). The dielectric properties of NKN ceramics doped with 0.6 and 0.9 mol% V(2)O(5) were better than that of pure NKN ceramics. In addition, annealing treatment was proved to be an effective technique for improving dielectric properties and reducing the leakage current density.
More Related Videos
Related Concept Videos
02:54Molecular and Ionic Solids
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
01:12Bonding and Strength of Aggregate