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Customized Made High Purity Alumina Ceramic Bushing 99% Al2O3 Sleeve

  • Very good electrical insulation.
  • Moderate to extremely high mechanical strength.
  • Very high compressive strength.
  • High hardness.
  • Moderate thermal conductivity.
  • High corrosion and wear resistance.
  • Good gliding properties.
  • Low density.
  • Operating temperature without mechanical load 1,000 to 1,700°C.
  • Bioinert and food compatible.
Availability:
Quantity:
  • 01025

  • HaoRui

  • custom01025

The Most Well-known Oxide Ceramic Material



Aluminum Oxide (Al2O3)


Alumina or aluminum oxide (Al2O3) is a major engineering material. It offers a combination of good mechanical properties and electrical properties. It is used more often than any other advanced ceramic material.

Alumina ceramics are commonly subdivided according to their alumina content ranging from 80% to more than 99%. Alumina can be produced in a range of purities with additives designed to enhance properties. Higher purity alumina demonstrates enhanced wear and corrosion resistance.

A wide variety of ceramic processing methods can be applied including machining or net shape forming to produce a wide variety of sizes and shapes of component. In addition, it can be readily joined to metals or other ceramics using metallising and brazing techniques.

Alumina based ceramics are by far the largest range of advanced ceramics made by HaoRui. Due to the important combination of properties, we have thoroughly researched the behaviour and characteristics of our alumina products to give you the best possible component.


Properties of Alumina/Aluminum Oxide (Al2O3)


  • Very good electrical insulation.

  • Moderate to extremely high mechanical strength.

  • Very high compressive strength.

  • High hardness.

  • Moderate thermal conductivity.

  • High corrosion and wear resistance.

  • Good gliding properties.

  • Low density.

  • Operating temperature without mechanical load 1,000 to 1,700°C.

  • Bioinert and food compatible.


Property
Item
95% Al2O3
99% Al2O3
99.8%Al2O3
Unit
Mechanical Characteristics
Color
White
light yellow
Ivory

Bulk Density
3.7
3.85
3.93
g/cm3
Water Absorption
0
0
0
%
Bending Strength
300
310
370
MPa
Compressive Trength
2,300
2,400
2500
MPa
Elastic Modulus
320
340
390
GPa
Fracture Toughness
3~4
3~4
4
MPa m1/2
Weber Coefficient
12
12
12
m
Vickers Hardness
1,400
1,600
1850
HV 0.5
Thermal Characterics
Coefficient of Line Thermal
Expansion
7~8
7~8
7~8
10-6 K-1
Thermal Conductivity
20
29
32
W/mK
Thermal Shock Resistance
(Put in Water)
250
200
280
ΔT °C
Max Working Temperature
1,500
1,600
1700
°C
Electrical Characteristics
Volume Resistance At 20°C
>1014
>1014
>1014
Ωcm
Dielectric Strength
15×106
15×106
15×106
V/m
Dielectric Constant
9
10
10
εr
One MHZ Dielectric Loss Angle
at 20°C
0.0004
0.0002
0.0001
tanδ
Chemical Characteristics
Nitric Acid (60%) 90°C
0.1
0.1
0.05
24H WT Loss mg/cm2
Sulphuric Acid (95%) 95°C
0.3
0.34
0.22
Caustic Soda (30%) 80°C
0.9
0.95
0.04


Customized Made High Purity Alumina Ceramic Bushing 99% Al2O3 Sleeve

Our Customized High Purity Alumina Ceramic Bushing offers superior performance in a variety of industrial applications due to its excellent thermal, electrical, and mechanical properties. Made from 99% Al2O3, this alumina ceramic bushing is highly resistant to wear, corrosion, and high temperatures, making it the ideal choice for challenging environments.


Key Features:

  1. High Purity Material: Our alumina ceramic sleeve is manufactured using 99% high purity alumina, ensuring excellent mechanical strength, superior corrosion resistance, and exceptional durability in harsh conditions.

  2. Temperature Resistance: This alumina sleeve can withstand extreme temperatures, with a melting point of over 2000°C, making it suitable for high-temperature applications like furnaces and kilns.

  3. Exceptional Insulating Properties: The ceramic bushing provides excellent electrical insulation, ensuring safe and reliable performance in electrical components and high-voltage equipment.

  4. Customizable Dimensions: We offer fully customizable alumina ceramic bushings to meet the specific needs of your project, from varying sizes and shapes to unique design specifications.

  5. Wear and Corrosion Resistance: Thanks to the natural hardness of alumina ceramic, these ceramic bushings deliver excellent resistance to wear, abrasion, and chemical attack, ensuring longer service life compared to other materials.


Applications:

  • Electrical Insulation: The alumina ceramic bushing is commonly used in electrical applications where high insulation is required, such as in power distribution equipment.

  • High-Temperature Environments: Ideal for use in kilns, furnaces, and other high-temperature industrial processes.

  • Mechanical Components: The alumina ceramic sleeve is often used in pumps, valves, and mechanical seals where corrosion resistance and mechanical strength are crucial.

Choose our high purity ceramic bushings for high-performance solutions in demanding industrial environments. The superior properties of alumina ceramic make it the perfect choice for high-stress, high-temperature, and corrosive applications.


By choosing our customized alumina ceramic bushings, you are ensuring reliability, durability, and exceptional performance in even the most challenging applications. Contact us today for a tailored solution to meet your specific requirements!

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