Monoclinic Zirconia
CAS Number: 1314-23-4
Unstabilized monoclinic zirconia powder with ZrO₂+HfO₂ ≥99%. Used in refractory, foundry, and high-temperature applications where phase-transformation toughening is not required. High melting point (~2715°C), excellent corrosion resistance, and low thermal conductivity make it a key raw material for advanced refractories and investment casting.
Technical Specifications
| purity | ZrO₂+HfO₂ ≥99% |
| appearance | White powder |
| crystal phase | Monoclinic |
| melting point | ~2715°C |
| particle size | d50 1 – 5 μm (customizable) |
| loss on ignition | ≤0.5% |
Applications
- Refractory bricks and castables
- Investment casting molds and shells
- Kiln furniture and crucibles
- Glass-contact refractories
- Ceramic pigment and glaze base
Key Features
- Ultra-high purity ZrO₂+HfO₂ ≥99% for demanding refractory use
- Exceptional thermal stability up to 2700°C
- Low thermal conductivity — effective thermal insulation
- Excellent chemical resistance to molten metals and glass
- Particle size customizable from sub-micron to coarse grit