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Electronic Vacuum Ceramic Parts/Components
Characteristics:
High mechanical strength High dielectric strength
Low loss in high frequency Low gas leakage coefficient
Low dielectric constant High voltage resistance
Good dimension Convenient soldered
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 |
- |
|||||
Specifications
Metallized ceramic can be application in the production of porcelain controls, surge arresters, surge arrester with insulation, high temperature resistance, good air tightness, fast heat dissipation, high mechanical strength and high stability in harsh working environment, good soldering and solder with gold, silver, copper, nickel and so on.
The aluminum oxide has the good electrical character in high frequency, and the mechanical strength is good, widely applies in the electronic vacuum device.
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 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.
If you have your design,please tell us,and we can provide you the satisfied products according to your drawing or sample.
Send Inquiry to This Supplier
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