Alumina
High-purity aluminium oxide for demanding technical applications requiring exceptional hardness and thermal stability
Advanced Alumina Materials
Alumina (Al₂O₃) is one of the most versatile and widely used advanced ceramic materials, offering an exceptional combination of properties including high hardness, excellent wear resistance, chemical inertness, and outstanding thermal stability up to 1800°C.
We supply alumina in various purities and forms, from standard 96% alumina for general industrial applications to ultra-high purity 99.9% alumina for semiconductor and laboratory use. Our materials are carefully processed to ensure consistent quality and performance.
Material Properties
Physical Properties
- Density: 3.9-4.0 g/cm³
- Hardness: 9 Mohs scale
- Melting point: 2072°C
- Color: White to ivory
Thermal Properties
- Max operating temp: 1800°C
- Thermal conductivity: 30 W/m·K
- Low thermal expansion
- Excellent thermal shock resistance
Chemical Properties
- Excellent chemical inertness
- Resistant to most acids/bases
- Non-reactive with metals
- Excellent electrical insulation
Available Grades
96% Alumina
Cost-effective grade for general industrial applications requiring good mechanical properties and thermal resistance.
- Wear-resistant components
- Electrical insulators
- Furnace furniture
99.7% Alumina
High-purity grade offering superior properties for demanding applications in electronics, medical, and laboratory environments.
- Semiconductor processing
- Medical implants
- Laboratory crucibles
99.9% Alumina
Ultra-high purity grade for the most critical applications requiring maximum purity and performance.
- Advanced semiconductor equipment
- Analytical chemistry
- Precision optical components
Custom Formulations
Tailored alumina compositions with specific additives to optimize properties for unique application requirements.
- Enhanced toughness variants
- Improved thermal conductivity
- Application-specific properties
Applications
Electronics
Substrates, insulators, and semiconductor processing equipment
Medical Devices
Biocompatible implants and surgical instruments
Wear Parts
Cutting tools, grinding media, and wear-resistant components
Thermal Management
Heat sinks, furnace linings, and kiln furniture
Chemical Processing
Reaction vessels, catalyst supports, and filtration media
Aerospace
High-temperature components and thermal protection systems
Automotive
Spark plug insulators and sensor components
Laboratory
Crucibles, tubes, and analytical equipment
Need Alumina Materials?
Contact our materials specialists to discuss your alumina requirements and find the perfect grade for your application