Aluminum Oxide (Al₂O₃) Nanopowder / Nanoparticles – 100% Alpha Phase, Purity: 99+%, Size: 80 nm

Description

Aluminum Oxide (Al₂O₃) Nanopowder / Nanoparticles – 100% Alpha Phase, Purity: 99+%, Size: 80 nm

• Chemical Formula: Al₂O₃

• Phase Composition: 100% alpha (no gamma) – Hydrophilic

• Purity: ≥99%

• Average Particle Size (APS): 80 nm (TEM analysis: 50 wt% = 80 nm, 25 wt% <80 nm, 25 wt% >80 nm, including 2 wt% reaching 180 nm)

• Grain Size: 27 nm

• Specific Surface Area (SSA): >15 m²/g

• Density: 3.97 g/cm³

• Color: White

• Crystallographic Structure: Rhombohedral

Elemental Analysis (ppm):

• Ca: ≤20

• V: ≤5

• Cl: ≤280

• Na: ≤30

• Mn: ≤5

• Co: ≤5

Description:
Alpha-phase Aluminum Oxide (Al₂O₃) nanoparticles are high-purity, ultra-fine powders with exceptional phase stability, high hardness, and superior dimensional stability. This form of alumina is widely recognized for its ability to enhance ceramic density, surface finish, thermal fatigue resistance, fracture toughness, creep resistance, and wear resistance.

As a far-infrared emitting material, α-phase nano-Al₂O₃ is used in fiber fabrics, high-pressure sodium lamps, and thermal insulation systems. It also offers high electrical resistivity and excellent insulation properties, making it suitable for integrated circuit substrates, YAG laser crystal components, and high-performance optical applications.

Applications:

• Transparent ceramics: High-pressure sodium lamps, EP-ROM windows.

• Gemstones & single crystals: Ruby, sapphire, yttrium aluminum garnet.

• Advanced ceramics: High-strength alumina ceramics, cutting tools, high-purity crucibles, furnace tubes, and C substrates.

• Surface finishing: Polishing materials for glass, metals, semiconductors, plastics, and tape.

• Composite materials: Wear-resistant reinforcement in paints, rubbers, plastics, and advanced waterproof materials.

• Electronics & optics: Vapor deposition materials, fluorescent materials, and special glass.

• Catalysis: Catalyst and catalyst carrier in chemical processes.

• Aerospace: Used in high-temperature-resistant aerospace components such as aircraft wing leading edges.

Recommended Dosage:
Typical usage is 1–5%, with optimization based on specific application requirements.