Ceramic coatings are widely used to refurbish equipment in high-temperature and corrosive environments, such as CVD chambers, PVD chambers, solar cells, and electrostatic chucks. Plasma-sprayed ceramic coatings can be ground to a near-mirror finish, making them ideal for both aesthetic and functional applications. These coatings are also used to strengthen bearings and restore them to near-original condition.

Key Ceramic Coatings and Their Properties: 

1. CrownRe`s Yttrium Oxide Ceramic Coating 

  - High heat dielectric with excellent corrosion resistance.

  - Macrohardness: Rn15 | Surface Finish: Ra 120µin (sprayed), Ra 5µin (ground).

  - Bond Strength: 4931 PSI* | Breakdown Voltage: 10 mils/3 kV (purity dependent).

Characteristics of plasma-resistant Y2O3 powder coatings produced using.pdf

Air Plasma-Sprayed Y2O3 Coatings for Al2O3 Al2O3 Ceramic Matrix.pdf

2. CrownRe`s Aluminum Oxide Ceramic Coating 

  - High heat dielectric with strong corrosion resistance.

  - Macrohardness: Rn15 | Surface Finish: Ra 130µin (sprayed), Ra 6µin (ground).

  - Bond Strength: 4790 PSI* | Breakdown Voltage: 10 mils/3.5 kV | Melting Point: 2314°C.

3. CrownRe`s Chrome Oxide Ceramic Coating 

  - Exceptional hardness and corrosion resistance.

  - Microhardness: 1950 Kn100 | Surface Finish: Ra 160µin (sprayed), Ra 3µin (ground).

  - Bond Strength: 7195 PSI* | Melting Point: 1990°C.

4. CrownRe`s Titanium Dioxide Ceramic Coating 

  - High corrosion resistance and emissivity.

  - Macrohardness: Rn15 | Surface Finish: Ra 250µin (sprayed), Ra 8µin (ground).

  - Bond Strength: 6510 PSI*.

5. CrownRe`s Zirconium Oxide Ceramic Coating 

  - Excellent thermal barrier properties.

  - Macrohardness: Rn15 | Surface Finish: Ra 150µin (sprayed), Ra 10µin (ground).

  - Bond Strength: 6970 PSI*.

*Bond strength measured using the Cylindrical Bond Strength Method.

Hollow Zirconia & Hydrothermal Granulated YSZ Powders – CrownRe’s Advanced TBC Materials

CrownRe Innovative Materials Inc. specializes in advanced ceramic powders for Thermal Barrier Coatings (TBCs) and Environmental Barrier Coatings (EBCs). Our product portfolio includes Hollow Zirconia Microspheres and Hydrothermal Granulated YSZ Powders, both tailored for aerospace and energy industries.

1. Hollow Zirconia Microspheres

Produced via Spray Drying + Plasma Sintering, featuring high sphericity, hollow structure, and excellent flowability, ideal for plasma spraying of TBCs in jet engines and gas turbines.

2. Hydrothermal Granulated YSZ Powder

• Particle size: 15–90 μm
• Process: Hydrothermal      synthesis of high-purity YSZ raw material, followed by optimized      granulation to produce dense, spherical, free-flowing powders.
• Application: Offers      outstanding stability and spraying performance, suitable for Plasma      Spraying and HVOF techniques in TBC applications.

3. Specialty Products

CrownRe has developed a wide range of high-performance coating materials, including:

• YbGdYSZ      (Ytterbium-Gadolinium co-stabilized Zirconia) – superior thermal shock      resistance and insulation.
• Lanthanum Zirconate      (La₂Zr₂O₇) / Gadolinium Zirconate (Gd₂Zr₂O₇) – ultra-low thermal      conductivity and high-temperature phase stability, representing the next      generation of EBC materials.

With strong expertise and diverse product lines, CrownRe delivers reliable and sustainable solutions for the aerospace, energy, and advanced ceramics industries worldwide.

Influence of atmospheric plasma spraying process parameters on microstructure.pdf