Cost-effective and controllable synthesis of M0.25Ni0.15Cu0.25Co0.35Fe2O4 (M2+ = Mg2+, Mn2+, Cd2+) ferrites via the sol–gel auto-combustion technique. The impact divalent cations on structural, dielectric, optoelectrical properties was examined by XRD, FTIR, Raman, LCR, UV–Vis, two probe I-V measurement techniques. crystallite size 52.66 nm, minimum specific surface area observed 5.1507 m2/g fo...

A novel anode material for intermediate temperature solid oxide fuel cells with a composite of LaxSr1-xTiO3 has been synthesized by a sol-gel auto-combustion method. X-ray diffraction (XRD) shows that LaxSr1-xTiO3 has good chemical compatibility with Gd0.2Ce0.8O1.9 electrolyte. The thermal expansion coefficient (TEC) of the as-prepared anode material is similar to that of Gd0.2Ce0.8O1.9. The el...

Thomas Karcher Institute for Program Structures and Data Organization Karlsruhe Institute of Technology 76128 Karlsruhe, Germany [email protected] Christopher Guckes Institute for Program Structures and Data Organization Karlsruhe Institute of Technology 76128 Karlsruhe, Germany [email protected] Walter F. Tichy Institute for Program Structures and Data Organization Karlsruhe Institute...

Service-oriented architectures (SOA) and, in particular, Web Services designs are widely adopted for the development of interoperable systems. In a dynamic scenario, a composed service may exploit component services in order to complete its task; composed services are variously distributed, and offered by different providers in different security domains and under different load conditions. So,...

Abstract The effect is reported of substituting the non-magnetic Zn 2+ cations with magnetic Ni cations, and Fe 3+ Al in Ba 0.5 Sr 1.5 11.92 0.08 O 22 on resulting properties. Y-type hexaferrite powders were synthesized by citric acid sol-gel auto-combustion, followed appropriate thermal annealing. saturation magnetization values ( M s ) a field 50 kOe 36 emu/g 30 at 4.2 K 300 K, respectively. ...