Principles and process flow of Metallized Ceramics technology

As a typical inorganic non-metallic material, ceramic materials have outstanding advantages such as small dielectric loss, high thermal conductivity, low thermal expansion coefficient, high electrical insulation and high operating temperature. However, ceramic itself is not conductive and cannot be directly used in electronic circuits and other scenarios. To make up for this shortcoming, ceramic metallization technology came into being. This technology forms a metal coating on the surface of the ceramic, so that the ceramic has the conductivity of metal and the high strength and high temperature resistance of ceramic. It is widely used in electronics, aviation, the military industry and other fields.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The core principle of ceramic metallization is to use chemical reactions or physical vapor deposition to form a uniform and strong metal coating on the ceramic surface. Specific mechanisms are divided into two categories: Chemical reaction method: Use chemical reduction or reduction-oxidation process to generate copper, nickel and other metal compounds on the ceramic surface, and then convert them into metal coatings through heat treatment or reduction reaction. This method is suitable for close combination scenarios of ceramics and metals (Ceramic to Metal). Physical vapor deposition method: Use high-temperature plasma to vaporize metal atoms, and then deposit them on the ceramic surface to form a metal layer. This method has a fast deposition speed and uniform thickness, but it has high equipment and technical requirements.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A typical process flow for ceramic metallization includes the following steps: Cleaning: Use organic solvents or alkaline cleaning agents to remove dirt and grease on the ceramic surface to ensure the adhesion quality of Metallization Ceramic. Pretreatment: Treat the cleaned ceramic surface through chemical or physical methods (such as oxidation, copper plating, or anodizing) to enhance the bonding force between the metal coating and the substrate. Metalized coating: Using techniques such as electroplating, chemical reduction or physical vapor deposition to coat a metal layer on the ceramic surface. This link is a key step in realizing high-purity alumina precision advanced ceramic metallization parts.

 

Heat treatment: The metal-coated ceramic is heat-treated at a specific temperature to promote the formation of a strong bond between the metal layer and the ceramic matrix. Temperature and time are determined based on metal and ceramic material types. Finishing processing: Cleaning, testing and packaging of finished products to ensure that the Precision Metallized Alumina Ceramic Components meet precision processing requirements, such as the size and performance standards of Precision Metallized Alumina Ceramic Components.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electronics industry: Ceramic to Metal are used in components such as capacitors, resistors, transistors and semiconductor devices, which can significantly improve conductivity and corrosion resistance. Common ceramic metallization for electrical components. Precision Metallized Alumina Ceramic Components have played an important role in high-reliability circuits. Aerospace: used to manufacture key components such as engine blades, valves, and bearings to improve mechanical strength and heat resistance.

 

 

Our company specializes in the R&D and production of precision Metallized Ceramics. We can provide customers with one-stop solutions from ceramic precision processing to metallized sealing. Welcome to contact us for technical support and product solutions.