Product Overview
Zirconium Oxide with Calcium Oxide Sputtering Target (ZrO2/CaO) is a ceramic sputtering target used to deposit composition-specific oxide thin films. Compared with metallic targets, oxide targets are typically more sensitive to density, porosity, brittleness, thermal shock, and bonding design. In practice, target microstructure, thickness, cooling conditions, and the chosen sputtering mode can all affect arc stability, particle generation, and deposited-film performance.
Material and Deposition Characteristics
RF magnetron sputtering is commonly considered for insulating or semiconducting oxide targets, while sufficiently conductive formulations may allow alternative power modes in some systems. Target density and microstructural uniformity matter because pores, cracks, and local inhomogeneities can contribute to unstable plasma, particles, or target damage. For brittle ceramics, bonded assemblies and gradual power ramping are often worth evaluating.
Technical Data
| 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 |
| 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 |
| 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. |
Typical Thin-Film Applications
- Dielectric, insulating, optical, magnetic, protective, or functional ceramic thin films
- Semiconductor, sensor, photonic, and multilayer coating research
- Applications where oxide composition, density, and process stability affect film performance
Target Configuration and Ordering Considerations
When requesting a quotation, provide target diameter or rectangular dimensions, thickness, purity or composition, required quantity, and whether a backing plate or bonded assembly is needed. For brittle ceramic or compound targets, it is useful to specify the cathode model, backing-plate material, preferred bonding method, operating power if known, and any density, tolerance, or inspection-document requirements. TFM can review drawings, old-target photos, and application details when custom dimensions are required.
Frequently Asked Questions
Is Zirconium Oxide with Calcium Oxide better suited to RF or DC sputtering?
RF magnetron sputtering is commonly considered for insulating or semiconducting oxide targets. If a specific formulation is sufficiently conductive, other modes may also be possible, but the equipment and target properties should be confirmed.
Why is density important for a Zirconium Oxide with Calcium Oxide target?
Density and microstructural uniformity affect erosion stability, thermal behavior, and particle risk. Pores, cracks, or local density variations can contribute to unstable sputtering and target damage.
Should a Zirconium Oxide with Calcium Oxide target be bonded to a backing plate?
Bonding is often useful for brittle oxide targets because it can improve mechanical support and heat transfer. The backing material and bonding method should be chosen according to target size, thickness, and operating conditions.
Will the deposited film always have the same composition as ZrO2/CaO?
Not always. Film composition can be affected by preferential sputtering, reactive gas, substrate temperature, re-sputtering, and chamber conditions. Composition-sensitive films should be verified after deposition.
How should power be ramped on a brittle Zirconium Oxide with Calcium Oxide target?
A conservative power ramp and stable cooling are generally advisable. The exact operating procedure should follow the target size, bonding condition, cathode design, and supplier recommendations rather than a universal wattage.
What information should I provide when ordering Zirconium Oxide with Calcium Oxide?
Provide formula or composition, purity, dimensions, quantity, backing and bonding requirements, cathode model or drawing, and any density, tolerance, or inspection requirements.
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