Yttria-stabilized zirconia (YSZ) is the best known ceramic-oxide material employed as a component of either solid electrolyte or anode cermet material for intermediate solid oxide fuel cell (IT SOFC). The properties of traditionally produced (by mechanical mixing of oxides) Al2O3/3YSZ composite with the same composition materials obtained by citrate and impregnation methods and with properties ...

Abstract The origin of nonuniform microstructure and abnormal grain growth (AGG) was investigated in flash sintered 3 mol% yttria‐stabilized zirconia (3YSZ) ceramics. microstructural homogeneity decreased with increasing direct current (DC) density dwell time a state, eventually resulting AGG the specimen core, first observation 3YSZ. Abnormal grains up to 100 μm size emerged when DC ≥160 mA/mm...

The micro-scale joining of two different materials using two-component micro-powder injection molding (2C-µPIM) is an intriguing technique. formation defects in bi-materials at processing stages makes this technique challenging. This study presents the fabrication defect-free bi-material micro-parts containing hydroxyapatite (HA) and 3 mol% yttria-stabilized zirconia (3YSZ) via 2C-µPIM. Critica...

Flash sintering has attracted much attention as a useful technique that is able to lower the furnace temperature and shorten time. To further improve this original flash technique, we have developed facilitate shrinkage at constant rate by controlling power dissipation during state, which termed shrinkage-controlled (SCF) sintering. Here, combine SCF method with rapid heating process entire Acc...

• Few-layered-graphene (FLG) films of very homogeneous thickness have been deposited on the surface grains a 3YSZ ceramic powder. A high level densification these composite materials has achieved by using Spark Plasma Sintering process. FLG's levels distribution at grain boundaries result in electrically conductive with less than 1.98 vol.% carbon content. Materials anisotropic electrical condu...

Long-term, reliable operation of Solid Oxide fuel and electrolysis Cell (SOCs) necessitates cells with high strength resistance to mechanical degradation. In this work, strength, Young’s modulus Low-Temperature Degradation (LTD) several zirconia-based SOCs supports are studied. The study shows that replacing 3YSZ a tetragonal zirconia compound having lower stabilizer contents can improve the po...

Abstract This is the first study to conduct flash sintering of 3 mol% yttria-stabilized zirconia (3YSZ) ceramics at room temperature (25 °C) under a strong electric field, larger than 1 kV/cm. At standard atmospheric pressure (101 kPa), probability successful approximately half that low pressure, lower 80 kPa. The success proposed process was determined based on high arc performance different p...