CNC Machining Or Not: | Cnc Machining | Type: | Other Machining Services |
---|---|---|---|
Material Capabilities: | Alumina Ceramics | Micro Machining Or Not: | Micro Machining |
Material: | Engineering Ceramics | Product Name: | Precision Ceramic Parts |
Size: | Customized Size | Drawing Format: | 2D/(PDF/CAD)3D(IGES/STEP) |
Application: | Industrial Equipment | Quality Control: | 100% Inspection |
Port: | Shanghai Or Other Ports | ||
High Light: | Alumina 99.5 1700C,Alumina Ceramic Parts Working Temperature 1700C,alumina ceramic components 1700C |
Optional material
Alumina (Al2O3), Zirconia (ZrO2), Silicon carbide (SiC) and Silicon nitride (Si3N4)
Dimensional capability
Diameter range from 0.30 ~50 mm, length can be up to 2000 mm
Secondary process
Lapping, Fine grinding, Precision cutting, Tapping, Drilling and so on
Technical parameters
Diameter to be 0.005 mm, length to be 0.10 mm, roundness can be 0.001 mm
Roughness
The cylinder surface can be polished to be Ra 0.20 or better
Surface treatment
Diamond-like polished surface, Glazed, Metalized for ceramic to metal boning
Cosmetic quality
Smooth surface free of contamination, no deformation, and crack
Alumina ceramic performance table
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Property
|
Item
|
Data
|
Unit
|
||
99.8% | 99% | 95% | |||
Mechanical Characteristics
|
color | Ivory | light yellow | White | - |
density | 3.93 | 3.85 | 3.7 | g/cm3 | |
Bending Strength | 370 | 310 | 300 | MPa | |
Compressive trength | 2,500 | 2,400 | 2,300 | MPa | |
Elastic Modulus | 390 | 340 | 320 | GPa | |
Fracture Toughness | 4 | 3~4 | 3~4 |
MPa m^1/2
|
|
Weber Coefficient | 12 | 12 | 12 | m | |
Vickers Hardness | 1,850 | 1,600 | 1,400 | HV 0.5 | |
Thermal Characterics
|
Coefficient of Line Thermal
Expansion
|
7~8 | 7~8 | 7~8 |
10^-6 K^-1
|
Thermal Conductivity
|
32 | 29 | 20 |
W/mK
|
|
Thermal Shock Resistance
(Put in Water)
|
280 | 200 | 250 | ΔT °C | |
Max Working Temperature
|
1,700 | 1,600 | 1,500 | °C | |
Electrical Characteristics
|
Volume Resistance at 20°C
|
>10^14 | >10^14 | >10^14 | Ωcm |
Dielectric Strength
|
15×10^6
|
15×10^6
|
15×10^6
|
V/m
|
|
Dielectric Constant | 10 | 10 | 10 | εr | |
One MHZ Dielectric Loss Angle
at 20°C
|
0.0001 |
0.0002
|
0.0004 |
tanδ
|
|
Chemical Characteristics
|
Nitric Acid (60%) 90°C
|
0.05 | 0.1 | 0.1 |
WT Loss mg/cm^2/day
|
Sulphuric Acid (95%) 95°C | 0.22 | 0.34 | 0.3 | ||
Caustic Soda (30%) 80°C
|
0.04 | 0.95 | 0.9 |