Method of brazing beryllium-aluminum alloy members to form a beryllium-aluminum alloy assembly and coating the beryllium-aluminum alloy assembly

摘要

A method for brazing beryllium-aluminum alloy members to form a beryllium-aluminum alloy assembly and coating the beryllium-aluminum alloy assembly in which an aluminum-silicon based braze alloy is placed between the beryllium-aluminum members at the locations for forming braze joints. The aluminum-silicon based braze alloy is surrounded by a brazing flux comprising aluminum fluoride. The beryllium-aluminum alloy members and the aluminum-silicon based braze alloy are heated to form the beryllium-aluminum alloy assembly. Oxidized surfaces appearing on the beryllium-aluminum alloy members are removed. Thereupon, the beryllium-aluminum alloy assembly is coated by plasma deposition of alumina-titania powder.