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99 Alumina Ceramic insulate bushing Parts plate Industrial Ceramic

  • 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.
Availability:
Quantity:
  • 01103

  • HaoRui

  • custom01001

Alumina Al2O3 Industrial ceramic sealed assemblies


Industrial alumina nozzles are used in various industrial applications, including welding and cutting. They are known for their durability and resistance to high temperatures.


Alumina ceramic bushing
: 99% Alumina Bushings
: 99% Alumina Shaft
: 99% Alumina Sleeves
: 99% ceramic shaft
: 99% Ceramic Sleeve
: 99% ceramic shaft sleeve
: Alumina Ceramic Sleeves
: Ceramic Sleeves
: Ceramic Shafts
: Ceramic Sleeves


Main application:

Semiconductor manufacturing equipment parts (chamber parts, insulation flanges, etching equipment parts, wafer chucks)
Mill components (classifiers, air flow mills, bead mills)
General industrial parts (laser processing machine nozzles, shafts, bearings)
High-precision, precision, and heat-resistant metallurgical tools (positioning jigs, assembly jigs)
Wear-resistant parts (guide rollers for wire drawing machines, wire channels, guide rails)
Electrically insulated parts (insulators, gaskets, bushings)


Advantages of Ceramic Sealed Assemblies Ceramic sealed assemblies offer several advantages, including:


  • Alumina is a white or milky white ceramic that has been used in electronics since the early days for its excellent electrical insulation properties. It is used in large quantities and is the lowest cost material in precision ceramics.
    We supply high purity products in 99% and 99.8% . The high purity type of alumina has high mechanical strength and excellent corrosion resistance, enabling the production of large products.
    In addition, due to its excellent plasma resistance, it can also be used as a component for CVD equipment or etching equipment.




Properties of Alumina material (Al2O3)

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



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Founded in June 2006, Shenzhen Haorui IndustriaI Technology Co.,Ltd. is a professional enterprise engaged in R&D, manufacturing and sales of non-standard industrial ceramics, hard alloys (tungsten steel) and various metal and non-metal precision machinery parts.

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