Achieving a reliable hermetic seal with Beryllium is no easy task, but Omley Industries has been successfully brazing Beryllium for years. Vacuum brazed beryllium X-Ray windows are robust, yielding stronger joints than diffusion bonding. They will withstand repeated high temperature cycles and are vacuum compatible.
Hermetic windows can be brazed using foil as thin as .003”(.075mm). Windows can be brazed into standard flange styles or into custom mounts. Beryllium structures can also be brazed. While stainless steel is the most common pairing with Beryllium, Beryllium can be brazed to other metals as well.