Vacuum Ceramic Component
In modern industry, Metallized Ceramic Parts are widely used in many electronic vacuum devices, such as electron tubes, high-voltage feedthroughs, high-current feedthroughs, vacuum interrupters, vacuum capacitors/thyristors, X-ray tubes and power switches.
The key to making vacuum ceramic components is to cover the ceramic surface with a metal coating to achieve vacuum tightness and sealing. In order to achieve better brazing effect, or to protect the metal layer, we usually plate other metals on the outside of the metal layer, such as nickel plating, silver plating, gold plating, copper plating, tin plating, etc. The Metallized Ceramics produced by our company have the following characteristics:
- Extremely high bond/brazing strength
- High mechanical strength
- Good vacuum tightness
- Excellent electrical insulation
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Unit Price:0.5~50USDBrand:Jinghui CeramicsMin. Order:Piece/PiecesModel No:CustomizedTransportation:Ocean,Land,Air,Express,ExpressPackaging:Vacumm packaging with export cartonSupply Ability:2,000,000pcs/monthPlace of Origin:ChinaProductivity:500,000pcs/monthIndustrial Vacuum Ceramic Component with Metallization Vacuum ceramic component with metallization is a very special technical ceramic parts in the electronic and electrical application. It can achieve metal to ceramic joining by means of brazing... -
Unit Price:USD 30 - 50 / Piece/PiecesBrand:Jinghui CeramicsMin. Order:Piece/PiecesModel No:CustomizedTransportation:Ocean,Land,Air,Express,ExpressPackaging:Vacumm packaging with export cartonSupply Ability:200,000pcs/monthPlace of Origin:ChinaProductivity:50,000pcs/monthHigh Purity Alumina Metallized Ceramic Tubing We take use of advanced technology to provide industry extensive metallized ceramics, it covers a selection of raw materials to be the base of metallized ceramic components, for example aluminum oxide,... -
Unit Price:USD 3 - 5 / Piece/PiecesBrand:Jinghui CeramicsModel No:CustomizedTransportation:Ocean,Land,Air,Express,ExpressPackaging:Vacumm packagingSupply Ability:200,000pcs/monthPlace of Origin:ChinaProductivity:50,000pcs/monthMo/Mn Metallized Ceramic Tube JingHui supplys a great many of precision metalized ceramic tubes in high purity alumina. These metalized ceramics are widely used in a variety of high voltage, high current devices for the military, medical and... -
Unit Price:0.8~5USDBrand:Jinghui CeramicsMin. Order:Piece/PiecesModel No:CustomizedTransportation:Ocean,Land,Air,Express,ExpressPackaging:Vacumm packaging with export cartonSupply Ability:200,000pcs/monthPlace of Origin:ChinaProductivity:50,000pcs/monthCeramic Insulator Covered by Nickle Plating The metallization of aluminum oxide ceramics (min. 94.4% alumina) was performed by molybdenum-manganese process in hydrogen and nitrogen reduced atmosphere under 1250℃ ~1450℃ cured. After the sintering,...
FAQ
Important things you should know
Main material used in a Vacuum Ceramic Component
Alumina ceramic has become the main insulating material in a vacuum ceramic component because of its good electrical properties at high frequencies, small dielectric loss, large specific volume resistance, high strength, small thermal expansion coefficient, and low manufacturing cost.
Why metallization is needed on ceramic surfaces
Ceramics cannot be directly welded to metals. A thin metal film needs to be sintered on the surface of the ceramics, that is, metallization. Ceramic metallization methods mainly include Electroless Nickel Plating, Silver Firing, Mo-Mn, W-Au, Magnetron Sputtering Technology (Thin Film Method), etc. Currently, the Mo-Mn Method is widely used in the production and scientific research of Vacuum Ceramic Components.
Main factors affecting the quality of ceramic metallization
There are many factors that affect the quality of ceramic metallization, generally the quality of the ceramic itself, the treatment before metallization of the ceramic, the metallization formula, the particle size of the metallization powder, the thickness and uniformity of the coating, the metallization sintering temperature, atmosphere, holding time, nickel plating thickness and uniformity, etc.
How do you control quality
We mainly control from the following two aspects:1. Strict Control in Production: Products with unqualified quality are strictly prohibited from entering the metallization process.
2. 100% Full Inspection Before Shipment: Pick out products that are undersized or have metallization layer defects.
2. 100% Full Inspection Before Shipment: Pick out products that are undersized or have metallization layer defects.
Main application areas of Vacuum Ceramic Component (1)
The 2 most common applications of Vacuum Ceramic Component are:
1. Power electronics field: representative product: vacuum switch tube. The excellent insulation of the vacuum inside the tube enables the medium and high-voltage circuit to quickly extinguish the arc and suppress the current after cutting off the power supply, thereby achieving the function of safely breaking the circuit and controlling the power grid.
1. Power electronics field: representative product: vacuum switch tube. The excellent insulation of the vacuum inside the tube enables the medium and high-voltage circuit to quickly extinguish the arc and suppress the current after cutting off the power supply, thereby achieving the function of safely breaking the circuit and controlling the power grid.
Main application areas of Vacuum Ceramic Component (2)
2. New energy vehicle field: Representative products: relays. When high-voltage DC relays are loaded and broken, arcs are generated. Due to the cooling and surface adsorption of ceramics, the arcs are quickly extinguished, preventing short circuit fires in automobile circuits caused by arcs.
