Metallized Ceramics
Metal ceramics have the advantages of both metal and ceramics, it is small density, high hardness, wear resistance, good thermal conductivity, will not be brittle because of sudden cold or heat. In addition, in the metal surface coating a layer of airtight, high melting point, heat transfer performance is very poor ceramic coating, but also can prevent the metal or alloy oxidation or corrosion at high temperatures. Metal ceramics have both the toughness of metal, high thermal conductivity and good thermal stability, but also has the ceramic properties of high temperature, corrosion and wear resistance. Metal ceramics are widely used in rockets, missiles, supersonic aircraft shells, combustion chamber flame nozzles and other places.
Metal ceramics is a mechanical mixture of two-phase metal, each phase of the metal phase to retain the original physical properties. Two phases of metal in a phase for the refractory phase, its high hardness, high melting point, at high temperatures and impact does not deform under the action of the arc does not melt, so this phase of the metal in the material in the role of the skeleton. This type of metal has tungsten, molybdenum, metal oxides, etc.. Another phase of metal for the current-carrying phase, it mainly plays a role in electrical and thermal conductivity. This type of metal silver, copper and so on. Current-carrying phase metal melting point are relatively low, under the action of the arc high temperature melted into liquid, retained in the refractory phase of the metal skeleton composed of the void, preventing a large number of molten metal splash, so that the contact electric wear is greatly reduced.
Zmdy is a leading global Metallized Ceramic Manufacturer, specializing in providing customized precision alumina metallized ceramic parts for high-end industries such as military, medical, and aerospace. We can achieve precision metallization on flat surfaces, cylinders, and even complex geometric structures through a variety of methods such as spraying, needle coating, brushing, or screen printing.
Using molybdenum manganese (Mo/Mn) as a common primer material, combined with subsequent nickel, silver or gold electroplating processes, excellent adhesion and brazing properties are achieved
Supporting a variety of ceramic + metal coating combinations:
Ceramic + Mo/Mn metallization + nickel plating
Ceramic + Mo/Mn metallization + silver plating
Ceramic + Mo/Mn metallization + gold plating
Ceramic + printed silver
Ceramic through-core insulators, headers, high-power sockets
Vacuum circuit breakers, traveling wave tubes, RF windows
X-ray ceramic tubes, power grid tubes
Metallized ceramic rings and cylinders, insulating disks and ceramic precipitators
Medical sensor components, steatite bushings and custom sealed ceramic terminals
Using high-purity alumina materials (94%, 96%, 99.9%) Al₂O₃), and can provide low-sodium, low-iron special ceramic materials according to customer needs
The applied Mo/Mn coating is sintered in a high-temperature wet hydrogen environment (1450°C–1600°C) to form a glassy metal layer with a thickness of 300–500 microinches (7.6–12.7 microns)
The nickel plating layer is 0.001–0.003 inches (25.4–76.2 microns) thick and can be sintered at 850°C–950°C in a dry hydrogen atmosphere, which is convenient for subsequent high-strength brazing
Full-process quality control, covering ceramic pressing, metal parts receiving, metallization, electroplating, sintering, final testing and other links
All products are traceable, and each component must pass strict testing before leaving the factory
Support customers' full-process services from sample development, structural design to mass production and packaging
Provide customized ceramic + metal components, sealing components and complex metallized talc bushing products
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