Y2O3 (Yttrium Oxide) Precursor Nanopowder (~20 nm, >99.99%) for YSZ (Yttria-Stabilized Zirconia) Synthesis, 100-500 g/bottle, CYSZSY2O3PNP
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Utilizing ~20 nm Yttria (Y2O3) precursor nanopowder represents the gold standard for achieving high reactivity, compositional homogeneity, and lower sintering temperatures in Yttria-Stabilized Zirconia (YSZ) synthesis—whether preparing 3YSZ for mechanical strength or 8YSZ for high ionic conductivity in Solid Oxide Fuel Cells (SOFC) and Electrolysis Cells (SOEC).
The key advantages of 20 nm Y2O3 nanopowder are: (1) Drastically Lowered Diffusion Barriers: Solid-state reactions between Y2O3 and ZrO2 are diffusion-controlled. Reducing the yttria particle size down to ~ 20 nm provides an immense specific surface area (often ~30 m2/g), shortening diffusion paths and enabling atomic-scale interdiffusion at much lower thermal budgets. (2) Reduction of Calcination Temperatures: While coarser micro-sized yttria requires calcination temperatures exceeding 1300 °C to 1400 °C to fully react with zirconia, highly reactive ~20 nm powders allow complete solid-solution formation at 1000°C to 1150°C. This prevents premature grain growth and particle coarsening. (3) Elimination of Phase Segregation (Homogeneity): Coarse Y2O3 often leaves unreacted pockets, resulting in localized zones of monoclinic, tetragonal, and cubic phases that compromise mechanical integrity and ionic conductivity. Nano-scale mixing ensures uniform yttrium dopant distribution throughout the zirconia lattice from the very first firing step.
| Part Number |
CYSZSY2O3PNP (C-YSZS-Y2O3PNP) |
| CAS |
1314-36-9 |
| Purity |
>99.99% |
| Molecular Weight |
225.81 g/mol |
| Appearance |
White Powder |
| Density |
5.01 g/cm3 |
| Average Powder Size |
~20 nm (50 nm, 100 nm also can be supplied upon request) |
| Package Grade |
100 g, 200 g, and 500 g/bottle (other higher quantity grade, such as 1000 g or higher can be supplied upon request) |
References:
- C. W. Kuo, et al., Effect of Y2O3 addition on the crystal growth and sintering behavior of YSZ nanopowders prepared by a sol–gel process, Journal of Alloys and Compounds, 2009, 472, 186-193
- Morteza Hajizadeh-Oghaz, Large-scale synthesis of YSZ nanopowder by Pechini method, Bulletin of Materials Science, 2014, 37, 969–973