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Depositing a metallic coating of Molybdenum-manganese(Mo-Mn), or Tungsten (W) based paints followed by nickel /gold plating, Afterwards, an interface offered that enables ceramic to metal or ceramic to ceramic joining by means of brazing via solder.
In common case, a layer of metallization layer is applied with a typical thickness of 10 to 30 µm after cured. The metallization sintering process is carefully controlled to achieve a balanced mixture of Molybdenum particles surrounded by a matrix of glass to ensure high bond strength between the metallized layer and the ceramic base. In order to increase the wettability at subsequent brazing processing, we make the nickel plating to be 3~10um. We can offer a selection of metallization types as below:
1. Raw ceramic component + Mo/Mn (Molybdenum) metallization 2. Raw ceramic component + Ag (Silver) plating
3. Raw ceramic component + Sn (Tin) plating 4. Raw ceramic component + W (Tungsten) metallization + Au plating
5. Raw ceramic component + Mo/Mn (Molybdenum) metallization + Ni plating
Technical Key Parameters of Metalized Ceramics
|
Leak Rate |
≤1x10-11Pa.m3/s |
Metal Layer Tensile Strength |
≥150Mpa |
|
Volume Resistivity |
≥108Ω•cm |
Coefficient of Thermal Expansion |
(6.5 ~ 8.0) × 10-6 /°C |
|
Insulation Strength |
≥18kV/mm (D•C) |
Dielectric Constant |
9~10(1MHz, 20°C) |
|
Cosmetic Quality:1. No cracks, no bubbles; 2. Evenly distributed glaze; 3. No contamination |
|||
Main Features of Metalized Ceramic Insulators
● High bonding / brazing strength ● Low leakage rate ● High Insulation strength● High mechanical strength ● Low thermal expansion ● Resistant to corrosion free of rust ● Min. electric resistance and vacuum tightness
Widely used in vacuum interrupters, Electron tubes,Gas discharge tube, Vacuum capacitor,Vacuum thyristors, Surge arresters, Thyristor housings,Diode housings,Power grid tubes,Traveling wave tubes,Insulator rings and cylinder,X-ray tubes and so on
Q 1. Is it available to provide customize products?
A: We could support custom-made demand as per different dimensions, design and metallization and plating.
Q 2. When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry.
Q 4. How to ensure the quality?
A: The dimension out of any batch will be carried out sampling inspection per International AQL standard. 100% cosmetic inspection will be done.
Q 5. Do you produce other technical ceramic parts?
A: Yes, we are professional manufacturers for industrial ceramic plate, ceramic tubes, zirconia ceramic components besides metalized ceramics.
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Main Product:
Metallized ceramics,
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Ceramic Substrate
