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Precision Alumina Ceramic Valve Part Custom Non Standard Industrial Ceramic Structural Part

1.Excellent electrical insulation
2.Relatively low strength and fracture toughness
3.Resistance to wear and corrosive
4.Excellent thermal stability
5.Resistance to high temperatures
6.High electrical resistivity
7.Good chemical stability
8.High corrosion resistance
9. A variety of specifications available
10.Satisfy various technical request
Availability:
Quantity:
  • 01018

  • HaoRui

  • custom 01018

The Most Well-known Oxide Ceramic Material



Aluminum Oxide (Al2O3)


Alumina ceramic is a kind of ceramic material based on alumina (Al2O3). It should be noted that ultrasonic washing is required. Alumina ceramics is a kind of widely used ceramics, because of its superior performance, in modern society has been more and more widely used to meet the needs of daily use and special properties.

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)

Alumina ceramic is a kind of material based on alumina (AL2O3) , which has the following characteristics:

1.Excellent electrical insulation

2.Relatively low strength and fracture toughness
3.Resistance to wear and corrosive
4.Excellent thermal stability
5.Resistance to high temperatures
6.High electrical resistivity
7.Good chemical stability
8.High corrosion resistance
9. A variety of specifications available
10.Satisfy various technical request


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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