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Supalox N5003 Alumina Powder

Grade: Supalox N5003
Formula: Al₂O₃
Form: Powder
Material: Alumina
CAS Number: 1344-28-1
Commodity: Ceramics
Purity: 99.999%
Particle Size D10: 0.3µm
Particle Size D50: 0.45µm
Particle Size D90: 0.6µm
Phase: Alpha
Color: White
Goodfellow's Supalox N5003 Alumina Powder is a high-purity aluminum oxide (Al₂O₃) product engineered for advanced ceramic applications requiring exceptional chemical purity and controlled microstructure. This fine powder is characterized by its high sinterability and ability to achieve uniform, fine-grained microstructures when processed into ceramic components. Its tightly controlled particle size distribution and chemical composition ensure consistent performance and properties in the final product. Supalox N5003 is widely used in industries such as electronics, optics, and advanced materials research. It serves as a key raw material for producing high-performance ceramic components like substrates for integrated circuits, transparent ceramics for optical applications, and high-purity crucibles for crystal growth. In cutting-edge applications, this powder is utilized in the development of advanced ceramic scintillators for radiation detection and in the production of high-performance ceramic membranes for gas separation. In research settings, Supalox N5003 plays a crucial role in studying novel ceramic processing techniques and in developing new materials with enhanced optical and electrical properties. Its consistency and high purity make it an invaluable resource for both industrial ceramic production and scientific investigations, particularly in fields focused on improving the performance of ceramics in high-tech applications requiring exceptional chemical and microstructural control.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Powder
Mean Particle Size Nominal
Minimum Particle Size Nominal
Maximum Particle Size Nominal
Maximum Particle Size Nominal
Particle Size D10 Nominal
Particle Size D50 Nominal
Particle Size D90 Nominal

Material Properties for Ceramics

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alkalis Good
Halogens Good
Metals Good
Electrical Properties
Element Value
Dielectric constant 9-10.1
Dielectric strength( kV mm⁻¹ ) Oct-35
Volume resistivity( Ohmcm ) >10¹⁴@25
Physical Properties
Element Value
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 3.9
Thermal Properties
Element Value
Melting point( C ) 2100
Upper continuous use temperature( C ) 1700
Specific heat( J K⁻¹ kg⁻¹ ) 850-900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 26-35@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 300-400
Hardness - Knoop( kgf mm⁻² ) 2100
Hardness - Vickers( kgf mm⁻² ) 1500-1650
Shear strength( MPa ) 330
Tensile strength( MPa ) 260-300
Pultrusions
Element Value
Compressive strength( MPa ) 2200-2600

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