Reactive Alumina Powder

reactive alumina micropowder

Our reactive α-alumina micropowder is manufactured through a specialized sintering process, precision grinding, and multi-stage particle size classification, ensuring high purity, narrow particle size distribution, and exceptional sintering activity. With submicron-level particle size control, this premium-grade alumina offers excellent grain packing density, superior rheological properties, and stable workability, making it ideal for high-performance refractory production and advanced electronic ceramic applications.

Key Features

High Purity: Low Na₂O content for superior refractoriness and thermal stability.

Optimized Particle Size Distribution: Submicron control ensures dense packing and uniform sintering.

Excellent Rheology: Stable slurry flow for improved casting and forming processes.

Enhanced Mechanical Properties: Forms a solid ceramic bonding phase for high wear resistance and mechanical strength.

Improved High-Temperature Performance: Replaces low-refractoriness ultra-fine powders to boost thermal resistance and structural stability.

Global Industrial Applications

Refractory Industry:

Taphole Clay – Improves thermal shock resistance and bonding phase strength in blast furnace operations.

Low-Cement and Ultra-Low-Cement Castables – Enhances packing density, reduces water demand, and increases hot modulus of rupture (HMOR).

High-Alumina Bricks & Precast Shapes – Provides stable high-temperature mechanical strength and corrosion resistance.

Advanced Ceramics:

Electronic Substrates & Insulators – Delivers low dielectric loss and high thermal conductivity for electronic applications.

Wear-Resistant Components – Improves hardness and abrasion resistance for mechanical parts and sealing rings.

Ceramic Membranes & Filters – Ensures fine pore structure and long service life in filtration systems.

Particle Type & Size

Type: Reactive α-phase alumina micropowder

Size Range: Submicron to D₅₀ = 0.5–1.5 μm (customized upon request)

Packaging

25 kg/bag, 1000 kg/bag, or customized packaging based on client requirements.

Quality Compliance

ISO 9001:2015 , ISO 45001:2018, ISO 14001:2015 certified production

Full traceability from raw material to final delivery

Advantages Summary
By optimizing particle packing, reducing water demand, and enhancing sintering activity, our Reactive α-Alumina Micropowder significantly improves wear resistance, mechanical strength, and high-temperature stability of refractory and ceramic products, offering a cost-effective solution for industries demanding superior thermal performance and extended service life.

Technical Data

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