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Alumina Ceramic Seal Ring
Materials Performance
|
Item |
Unit |
Performance |
||||||
Alumina ceramic |
steatite ceramic |
||||||||
90% |
92% |
95% |
96% |
||||||
|
Ceramic Body
|
Appearance |
Color |
- |
white,ivory white,brown,black |
White off-white |
||||
|
Mechanical Characters |
Bulk Density |
g/cm3 |
≥3.6 |
≥3.65 |
≥3.7 |
≥3..75 |
2.7 |
||
|
Water Absorption |
% |
0 |
0 |
||||||
|
Flexural strength |
MPa |
280 |
300 |
310 |
320 |
150 |
|||
|
(HV) Hardness |
GPa |
12 |
5.8 |
||||||
|
Thermal Characters |
Coefficient of linear thermal expansion |
20℃~800℃ ×10-6mm/℃ |
6.3~7.3 |
6.4~7.4 |
6.5~7.5 |
6.8~7.8 |
8.0 |
||
|
Thermal Conductivity |
W/(m.K) |
12 |
16 |
20 |
23 |
2 |
||
|
Electrical Characters |
Dielectric constant(1MHz) |
— |
9~10 |
9~10 |
9~10 |
10 |
7.5 |
||
|
Dielectric loss angle |
×10-4 |
≤6 |
≤5 |
≤4 |
≤3 |
8 |
|||
|
Dielectric Strength |
KV/mm |
15 |
20 |
24 |
28 |
18 |
|||
|
Metalized Ceramics |
Gas leakage coefficient |
Pa.m3/s |
≤10-8 |
- |
|||||
|
Volume resistivity |
Ω.cm |
≥1015 |
- |
||||||
|
Combined strength |
MPa |
≥120 |
- |
||||||
|
Thickness of Metal |
μm |
≥20 |
- |
||||||
Features:
High mechanical strength High dielectric strength
Low loss in high frequency Low gas leakage coefficient
High voltage resistance Precise dimension
Company Description:
Ultronic engages in R&D,manufacturing and selling the products of advanced ceramic materials including Alumina Oxide, Zircomium Oxide,Boron Nitride,Silicon Nitride,Machinable Glass Ceramic and other advanced materials.
Though different manufacturing processes.We supply metalized ceramic components, alumina heater, ceramic pump components and other ceramic components as request.
Ultronic can supply many kinds of ceramic parts according to the customers' special requirements. Our products include the Alumina ceramic plunger, ceramic plunger pump, ceramic rods,ceramic tube ,Ceramic pipe ceramic shaft,
ceramic piston, ceramic water valve sheet, ceramic pipe sleeve,
ceramic loom plunger, ceramic seal ring, special shape ceramic, ceramic knife etc.
Ultronic products are widely used in Aerospace, Research, Food Processing, Fluid Handling, Scientific, Automotive, Defense, Thermal Processing, Electrical, Process Control, Textile & Wire, Pulp & Paper, Mechanical, Glass Processing,
Mineral as well as smaller niche markets.
All kings of ceramic parts
Welcome to contact us for further information.
Send Inquiry to This Supplier
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