Zirconium Dioxide (ZrO₂, CAS No. 1314-23-4), also known as Zirconia or Zirconium Oxide, is a high-performance inorganic oxide material widely used in advanced ceramics, optical materials, electronic components, catalysts, biomedical materials, and energy-related technologies. It is recognized as one of the most important ceramic materials due to its high melting point, excellent mechanical strength, chemical stability, corrosion resistance, and ionic conductivity.
Zirconium dioxide exhibits three main crystal phases: monoclinic, tetragonal, and cubic phases. Through stabilization with dopants such as yttria (Y₂O₃), zirconia can achieve enhanced toughness and ionic conductivity, enabling applications in solid oxide fuel cells (SOFCs), oxygen sensors, thermal barrier coatings, and zirconia ceramics.
| Property | Value |
|---|---|
| Chemical Name | Zirconium Dioxide |
| Synonyms | Zirconia; Zirconium Oxide; Zirconium(IV) Oxide |
| CAS Number | 1314-23-4 |
| Molecular Formula | ZrO₂ |
| Molecular Weight | 123.22 g/mol |
| Appearance | White powder |
| Melting Point | Approximately 2700°C |
| Boiling Point | Approximately 4300°C |
| Density | ~5.6–5.9 g/cm³ |
| Solubility | Insoluble in water |
| Crystal Forms | Monoclinic, tetragonal, cubic |
Zirconium dioxide offers:
Zirconium dioxide is one of the most important raw materials for high-performance ceramics.
Typical applications include:
Zirconia ceramics are valued for their high strength, toughness, and resistance to chemical and thermal degradation.
Due to its excellent biocompatibility and mechanical properties, zirconia is widely studied for biomedical applications.
Typical applications include:
Stabilized zirconia is an important electrolyte material for electrochemical energy conversion systems.
Typical applications include:
Zirconia-based coatings are widely used in high-temperature environments because of their low thermal conductivity and thermal stability.
Typical applications include:
Zirconium dioxide is used in optical applications due to its high refractive index and transparency in specific wavelength ranges.
Typical applications include:
Zirconia is widely used as a catalyst support due to its surface properties, acidity/basicity, and thermal stability.
Typical applications include:
ZrO₂ is investigated as a functional dielectric material in electronic devices.
Typical applications include:
| Parameter | Recommended Conditions |
|---|---|
| Storage Temperature | Room temperature |
| Storage Environment | Dry conditions |
| Moisture Protection | Recommended |
| Container | Tightly sealed |
| Handling | Avoid contamination |
Zirconium dioxide is widely used in advanced ceramics, biomedical materials, thermal barrier coatings, optical materials, catalysts, electronic materials, and energy technologies.
ZrO₂ provides excellent toughness, hardness, thermal stability, and corrosion resistance, making it suitable for high-performance ceramic applications.
Stabilized zirconia is zirconium dioxide modified with dopants such as yttrium oxide (Y₂O₃) or calcium oxide (CaO) to stabilize tetragonal or cubic phases and improve mechanical properties or ionic conductivity.
Yes. Stabilized zirconia is widely studied as an oxygen-ion conducting ceramic electrolyte in solid oxide fuel cells and electrochemical devices.
Zirconia combines high strength, fracture resistance, and biocompatibility, making it suitable for dental restorations and medical ceramic applications.
Yes. Zirconia is frequently used as a catalyst support because of its thermal stability and adjustable surface acid-base properties.
Store in a sealed container under dry conditions. Avoid prolonged exposure to humidity and contamination.
Yes. This product is intended for laboratory research, materials development, analytical applications, and industrial R&D use only.
