| Catalogue Code | IN-01 |
| CAS No. | 1344-28-1 |
| Chemical Formula | Al2O3 |
| Compound Name | Aluminum Oxide |
| Particle size d50 (μm) | 40-60µm |
| Purity (%) | >99.8% |
Introduction
Aluminum Oxide, also known as alumina, is the most widely used material for thermal spraying. As a spray-grade material, Al₂O₃ is specifically developed for the plasma spraying process, HVOF, and flame spraying. It has excellent hardness, wear resistance, and chemical stability, making it suitable for protective and functional coatings.
Properties
The following table contains some of the unique properties of Aluminum Oxide (Al₂O₃) as a spray-grade material:
| Property | Details |
| Appearance | Powder |
| Molar Mass | 101.96 g/mol |
| Density | ~3.9–4.0 g/cm³ |
| Chemical Stability | High |
Applications
Some of the application areas of aluminum oxide as a spray-grade material are discussed below:
- Wear Resistance: Coatings on pump sleeves, impellers, and seals to resist abrasive and sliding wear.
- Corrosion Resistance: The aluminum oxide coating protects reactors, tanks, and pipelines in corrosive environments.
- Electrical Insulation: Used on circuit boards, connectors, and insulating layers for high-voltage components.
- Aerospace Applications: Aluminum oxide coating provides wear and heat resistance to critical high-stress parts.
FAQs
Answere: Spray-grade Al₂O₃ is primarily used for protective and functional coatings that provide wear resistance, corrosion resistance, thermal insulation, and electrical insulation.
Answere: Al₂O₃ offers good hardness, chemical inertness, thermal stability, and electrical insulation, making it versatile for a wide range of applications.
Answere: Al₂O₃ coatings are generally deposited on metallic and ceramic substrates but are pretty brittle and may not function well on soft or highly flexible materials.
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