Shrinkage behaviors during shrinkage rate-controlled flash (SCF) sintering were investigated for 8 mol% Y2O3–ZrO2 (8YSZ) when rates varied between 60 and 300 μm/min under alternating current fields of 50 Vrms/cm, 1200 mArms, 1000 Hz at a furnace temperature approximately 870°C. Volumetric power dissipation electrical conductivity shown to exhibit similar dependencies against linear shrinkages e...

Flash sintering has been investigated as a modern sintering method through examining the effect of processing parameters such as current density, temperature, and contact paste on the flash sintered 8YSZ characteristic. 95% of theoretical density was achieved at 800°С in 30sec with a field intensity of 100V.cm-1 and a current density of 160mA.mm-2. Such relative density in conventional sinterin...

Optimum (La 0.2 Nd Sm Ca Sr )MnO 3 exhibits excellent high-temperature resistance to elemental segregation and chemical compatibility with 8YSZ while maintaining good electrical conductivity.

The feasibility of using a high-entropy rare-earth oxide (REO) as top coating material for thermal barrier coatings was explored the atmospheric plasma spray technique. microstructure and Vickers hardness layer were compared to those an 8 mol % yttria-stabilized zirconia (8YSZ) material. Macroscopic observations revealed formation well-coated surface with no defects or delamination. Scanning el...

The effects of small amounts (up to 5 wt.%) scandia- and ceria-stabilized zirconia on the electrical conductivity, elastic modulus hardness yttria-stabilized were investigated by impedance spectroscopy nanoindentation tests, respectively. main purpose this work was obtain solid electrolyte compounds with improved properties compared those base materials. Solid electrolytes prepared solid-state ...

Abstract Fine grained 8 mol% yttria-stabilized zirconia (8YSZ) transparent ceramics with high optical and mechanical properties were fabricated by air pre-sintering hot isostatic pressing (HIP) using commercial 8YSZ powders as the raw material. The pre-sintered fine grains appropriate relative density play a key role to achieve transparency suppressed grain size after HIP post-treatment at rela...

The direct utilization of anhydrous ethanol in solid oxide fuel cells (SOFC), with oxygen-storage anode materials the type Cu-(ZrxCe1?xY0.2O2??-Al2O3), is presented. ceramic processing CeO2-Al2O3 and 8YSZ (8% mol yttria stabilized zirconia) favors reaction between Ceria 8YSZ. Therefore, composed active solutions, such as (Zr0.25Ce0.75)0.8Y0.2O1.9 (cubic) (Zr0.50Ce0.50)0.8Y0.2O1.9 (tetragonal), ...