Name: 99.99%min α Phase Aluminium Oxide Powder 1344-28-1
Availability: InStock

99.99%min α Phase Aluminium Oxide Powder 1344-28-1

With a super-high purity of 99.99%, it has extremely low impurity content, effectively avoiding interference. It also features excellent high-temperature resistance and chemical stability, maintaining performance even in high-temperature environments. The particles are uniform and controllable, easy to disperse, and suitable for applications such as precision coatings and electronic ceramics. It has high insulation and mechanical strength, providing stable and reliable material support for high-end fields such as sensors and semiconductors, ensuring product accuracy and lifespan.

Cas No. :
1344-28-1
Density :
3.987 g/cm³
Melting point :
2054℃
Place of Origin :
China
Apperance :
White Powder
Purity :
99.99%

Product Details

Basic information

High-purity alumina (such as 4N grade) has a theoretical density of approximately 3.987 g/cm³. The actual sintered body density often exceeds 3.8 g/cm³. Its Mohs hardness is 9, its melting point is 2054℃, and it possesses both high insulation and corrosion resistance properties.

Specification

Item	Technical Indicators
Model	FITECH-N01	FITECH-N02	FITECH-N03	FITECH-N04
Appearance	White Powder	White Powder	White Powder	White Powder
Crystal Phase	α Phase	α Phase	α Phase	α Phase
Specific Surface Area (m²/g)	20-30	10-20	7-15	5-12
Content% ≥	99.99	99.99	99.99	99.99
Particle Size (nm)	30-50	100-150	200-300	500

Application

1: Used as insulating layers and packaging materials in semiconductors, leveraging its high purity (4N+) and excellent dielectric properties to ensure device stability and performance.

2: Applied in precision optical coatings (e.g., lenses, mirrors) due to its high transparency, hardness, and resistance to environmental corrosion, meeting the strict requirements of optical systems.

3: Serves as a carrier or sensitive layer in gas, humidity, and pressure sensors, relying on its controlled porosity, chemical inertness, and thermal stability for accurate sensing.

4: Essential in manufacturing high-performance electronic ceramics (e.g., substrates, insulators) for its high mechanical strength, electrical insulation, and compatibility with sintering processes.