Introduction
Zirconium Oxide stabilized with Calcium Oxide (ZrO₂/CaO) is a well-established ceramic system designed to enhance the structural and functional properties of zirconia. Calcium-stabilized zirconia (CSZ) exhibits improved phase stability, ionic conductivity, and mechanical strength compared to pure ZrO₂. As a sputtering target, ZrO₂/CaO is widely used for depositing robust, thermally stable thin films in applications ranging from energy systems to protective and functional coatings.
Detailed Description
ZrO₂/CaO Sputtering Targets are produced through advanced ceramic processing, including high-purity powder preparation, controlled doping with calcium oxide, and high-temperature sintering. The addition of CaO stabilizes the cubic or partially stabilized zirconia phase, preventing phase transformation and volume changes that can lead to cracking or degradation.
The CaO content—typically in the range of 3–8 mol%—plays a critical role in determining the material’s ionic conductivity and structural stability. This makes ZrO₂/CaO particularly suitable for applications such as solid oxide fuel cells (SOFCs) and oxygen sensors.
These targets are manufactured with high density (≥95% of theoretical density) and uniform microstructure, ensuring stable sputtering rates and consistent film composition. Due to the ceramic nature of the material, targets are often bonded to copper backing plates using indium or elastomer bonding to improve thermal conductivity and reduce mechanical stress during sputtering.
ZrO₂/CaO coatings exhibit excellent resistance to high temperatures, corrosion, and thermal shock. Additionally, their dielectric properties and oxygen ion conductivity make them suitable for both insulating and functional layers in advanced devices.
Applications
Zirconium Oxide with Calcium Oxide Sputtering Targets are widely used in:
- Solid oxide fuel cells (SOFC) and energy conversion devices
- Oxygen sensors and electrochemical devices
- Thermal barrier coatings for high-temperature environments
- Dielectric and insulating layers in electronics
- Protective coatings with high corrosion and wear resistance
- Optical coatings and advanced ceramic thin films
Technical Parameters
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Composition | ZrO₂ / CaO (3–8 mol% CaO typical) | Determines phase stability and conductivity |
| Purity | 99.5% – 99.99% | Ensures film consistency |
| Density | ≥ 95% theoretical | Reduces porosity and particle generation |
| Diameter | 50 – 200 mm (custom available) | Compatible with sputtering systems |
| Thickness | 3 – 6 mm | Affects target lifetime |
| Bonding | Indium / Elastomer / Cu backing | Enhances heat dissipation |
| Crystal Structure | Stabilized cubic / partially stabilized | Improves mechanical and thermal stability |
Comparison with Related Materials
| Material | Key Advantage | Typical Application |
|---|---|---|
| ZrO₂/CaO (CSZ) | Good ionic conductivity, cost-effective stabilization | SOFC, sensors |
| YSZ (ZrO₂/Y₂O₃) | Higher ionic conductivity | Advanced fuel cells |
| Pure ZrO₂ | High hardness but less stable | Structural ceramics |
FAQ
| Question | Answer |
|---|---|
| Can ZrO₂/CaO sputtering targets be customized? | Yes, CaO content, size, density, and bonding options can be tailored. |
| What sputtering method is suitable? | RF magnetron sputtering is typically used for oxide ceramic targets. |
| Why add CaO to ZrO₂? | It stabilizes the crystal structure and enhances ionic conductivity. |
| Are bonded targets necessary? | Yes, bonding improves thermal stability and reduces cracking risk. |
| Which industries use ZrO₂/CaO targets most? | Energy, electronics, aerospace, and advanced materials research. |
Packaging
Our Zirconium Oxide with Calcium Oxide Sputtering Targets are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. We take great care to prevent any potential damage during storage and transportation, ensuring the targets arrive in perfect condition.
Conclusion
Zirconium Oxide with Calcium Oxide Sputtering Targets provide a reliable and cost-effective solution for depositing thermally stable and functional oxide thin films. With customizable compositions and consistent quality, ZrO₂/CaO targets are ideal for applications in energy systems, electronics, and high-temperature environments.
For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.
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