What is metallization of ceramics?

Due to the significant difference of coefficient of thermal expansion between ceramics and metals, It's hardly impossible to bond ceramic to metal directly over in the past many years. In order to get this biggest challenges resolved, a new technology, called as "metallization of ceramics", borned.  Metallization process is to deposit a thin metallic layer onto the ceramic components, it makes the surface of ceramic parts own the characteristics of metal, then achieve the brazing purpose directly from ceramic to metal. 

The main types of metallization include " Molybdenum/Manganese (Mo/Mn)" and Tungsten (W), the choice of metallization depends on the outer plating. In common case,  Molybdenum/Manganese will be adopted when the outer plating is nickle plating; On the other hand, Tungsten will be used when the outer plating is gold(Au) plating.

Sometimes, silver plating and copper plating would be bonded with ceramic parts directly with some advanced technology.  Both metallization and metal coating thickness are always measured using XRF technology to ensure it meets the specifications.

Currently, we have been producing various Metallized ceramics, all these metallized ceramic insulators are feature with the superb strong brazing characteristics due to our unique and special paints which are developed and produced in house workshop. 

Key parameters of Metallized Ceramics

The gallery of Metalized Ceramic Insulator

The typical applications of Metalized Ceramics

Commonly used in x-ray tubes, Electron tubes,vacuum interrupters,Gas discharge tube, Vacuum capacitor,Vacuum thyristors, Surge arresters,Thyristor housings, Diode housings,Power grid tubes,Traveling wave tubes,Insulator rings and cylinder and so on.

Why choose us?

1. Standardized factory with professional engineering & production team

2. A selection of shaping methods and comprehensive secondary process

3. Advanced inspection equipment and rigorous quality-control system

FAQs (Frequently Asked Questions)

Q1. Can you produce customized metalized ceramic components?

A: Of course, we are able to make a variety of customized ceramic parts as per customers' specification. 

Q2. Do you produce DBC Ceramic Substrate?

A: Yes, we not only make alumina metalized ceramic insulators, but also manufacture DBC & DPC ceramic substrates.

Q3. Is there any MOQ requirement? 
A: Yes, there is a MOQ after samples approved, it depends on the size, the configuration, the type of coating.

Q4. How to ensure the quality?

A: Both brazing strength test and leak test will be done, then check them with XRF technology.