White Fused Alumina (WFA) is another high-quality synthetic abrasive material produced through the fusion of high-purity alumina in an electric arc furnace. It differs from Brown Fused Alumina in that it is made from higher purity raw materials, leading to a white, much purer product with different properties. Here’s a comprehensive overview:
Applications of WFA:
- Abrasives: Grinding and Cutting Tools
- Refractory Materials: High-Temperature Applications, Ceramic Industry
- Blasting Media
- Polishing and Coating
- Water Filtration
Key Differences between White Fused Alumina and Brown Fused Alumina:
Purity: WFA is made from higher purity raw materials, resulting in a higher Al2O3 content and a whiter color.
Hardness and Brittleness: WFA is harder and more brittle than BFA, making it suitable for precision applications but not for heavy-duty grinding or operations that require high toughness.
Applications: While both are used in abrasives and refractories, WFA is generally preferred for fine grinding, polishing, and high-precision finishing applications.