Aluminium Oxide Bushings Description
Aluminium Oxide Bushings manufactured from high-purity aluminium oxide (Al2O3) are known for measured thermal stability, mechanical strength, chemical inertness and electrical insulation. They operate at temperatures up to 1 500 °C, 1 650 °C or 1 750 °C without decomposition. Their mechanical properties and hardness ensure long-term performance and low wear under friction and mechanical load. They resist chemical corrosion and attack. Their insulation characteristics allow use in electrical and electronic components. These quantified properties qualify aluminium oxide bushings for applications in aerospace, electronics, chemical processing and industrial manufacturing.
Specification for Aluminium Oxide Bushings
Composition
|
UNIT
|
Al95
|
Al99
|
Al997
|
Al2O3 Content
|
%
|
95
|
99
|
99.7
|
Colour
|
|
White
|
Ivory
|
Ivory
|
Tensile Strength
|
Kpsi
|
32
|
38
|
36
|
Flexural Strength
|
Kpsi
|
52
|
55
|
54
|
Compressive Strength
|
Kpsi
|
300
|
377
|
350
|
Density
|
g/cc
|
3.70
|
3.90
|
3.92
|
Hardness
|
HV, GPa
|
13.8
|
17.2
|
18
|
Thermal Conductivity
|
W/(m K)
|
25
|
30
|
30
|
C.O.T.E.
|
In / In°C (x10^-6)
|
7.7
|
7.8
|
7.8
|
Working Temperature
|
°C
|
1500
|
1650
|
1750
|
Dielectric Constant
|
|
9.5
|
9.7
|
9.8
|
Volume Resistivity (25°C)
|
Ohm-cm
|
>10^14
|
>10^14
|
>10^14
|
*This table presents the typical properties observed in standard aluminium oxide materials used in the manufacture of our components. Please note that properties for custom components may vary owing to different processing methods. Stanford Advanced Materials can produce aluminium oxide products according to specific instructions or adapt to defined customer requirements.
Applications of Aluminium Oxide Bushings
Aluminium Oxide Bushings are employed in cases that require thermal stability, mechanical strength, chemical resistance and electrical insulation. In the electronics sector, engineers use them as insulators, connectors and spacers in high-voltage components. In aerospace and defence, they serve in heat insulation and as wear-resistant bearings in high-temperature settings. In industrial manufacturing, they reduce wear and friction in machine parts and rotating shafts. In the chemical industry, they provide corrosion-resistant parts, seals and gaskets. The automotive industry uses them in high-performance engine parts and electrical insulation systems. Medical devices incorporate them in prosthetic components and surgical instruments. Components in renewable energy systems, such as wind turbine and solar installations, also employ these bushings. The measured properties determine their suitability under controlled operational conditions.
Packaging for Aluminium Oxide Bushings
Our aluminium oxide bushings are packaged in a controlled environment. Procedures are used to prevent damage during storage and transport, thereby preserving the product in its original condition.
Prototyping Service also available for other ceramic materials available