KOVAR: Ceramic-to-Metal Sealing
In ceramic-to-metal sealing, Kovar (an Fe-Ni-Co alloy) plays a core role. It leverages its matched coefficient of thermal expansion (CTE) with specific ceramics (e.g., alumina, beryllium oxide) to achieve reliable connections with high airtightness and high-temperature resistance. It is a key material for critical packaging technologies in aerospace, high-end electronics, and other fields.
