white fused alumina powder 3-5micrometer
Product Overview
White Fused Alumina (WFA) Powder, with a precisely graded particle size range of 3 to 5 micrometers, is a premium-grade synthetic abrasive. Manufactured by fusing high-purity alumina in an electric arc furnace, followed by advanced crushing, milling, and precise air classification, this powder delivers a unique combination of exceptional hardness, chemical purity, and thermal stability. It is the material of choice for demanding fine-finishing and precision manufacturing processes.
Key Characteristics & Specifications
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Grain Size: Tightly controlled within the 3-5 µm range.
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High Purity: > 99.5% Al₂O₃ content, ensuring minimal contamination.
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High Hardness: 9.0 on the Mohs scale, providing superior cutting ability.
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Angular Grain Shape: Fractured, blocky morphology for aggressive micro-cutting and efficient material removal.
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Thermal Stability: Maintains integrity and performance at elevated temperatures.
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Chemical Inertness: Resistant to acids and alkalis, suitable for chemically sensitive applications.
Primary Applications
This fine-grade WFA powder is engineered for high-precision surface engineering:
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Precision Lapping & Polishing: An ideal abrasive for achieving ultra-smooth finishes on hard materials like advanced ceramics, precision optics, sapphire substrates, and fine tool steels.
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High-Performance Coatings: Used as a key component in wear-resistant and anti-skid coatings, enhancing durability for industrial floors, marine decks, and aerospace components.
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Advanced Refractories: Acts as a vital filler and aggregate in high-temperature linings and monolithic refractories, improving thermo-mechanical strength and corrosion resistance.
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Fine Abrasive Blasting: Suitable for delicate surface etching, cleaning, and preparation of critical components where a fine, controlled surface profile is required.
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Reinforcement for Composites: Incorporated into resin and metal matrices to create composites with enhanced wear resistance and thermal properties.
Advantages
The precisely defined 3-5 µm particle size ensures consistent, repeatable results and predictable surface finishes. Its high purity and angular grain structure lead to faster cutting rates and cleaner workpiece surfaces compared to natural abrasives. The material’s inherent toughness translates to longer effective life in both bonded and loose abrasive applications.
Packaging & Availability
Supplied in durable, moisture-resistant bags (typically 20 kg or 25 kg) or according to customer-specific requirements.
In summary, our 3-5 Micrometer White Fused Alumina Powder is engineered for excellence, providing unmatched performance in applications where precision, purity, and controlled abrasion are critical to success.
