99% Al2O3 vacuum tube ceramic material and metallization method and application thereof

The invention discloses a 99% Al2O3 vacuum tube ceramic material and a metallization method and application thereof, and belongs to the technical field of metallization of alumina ceramics for vacuum arc extinguish chambers, 99% Al2O3 ceramics are adopted for ceramic metallization process research, and after the 99% Al2O3 ceramics are subjected to grinding, cleaning, glazing, glaze firing, pasting, primary metallization sintering, electroplating and secondary metallization sintering, the 99% Al2O3 ceramics are subjected to high-temperature metallization sintering to obtain the 99% Al2O3 vacuum tube ceramic material. Metallization is successfully achieved on 99% Al2O3 ceramic, after the 99% Al2O3 ceramic is metalized, the tensile strength of the 99% Al2O3 ceramic is far higher than that of 95% Al2O3 ceramic commonly used at home and abroad at present, the strength of the 99% Al2O3 ceramic after metallization and sealing is 1.2 times or above that of the 95% Al2O3 ceramic, and the metallization ...