Method of making an object with a metal-non-metal seal

An object is made by sealing a metal body of the part to a nonmetal part of the object. The metal body is formed by a powdered metallurgy process, with the metal body being formed around or with the nonmetal part. Metal powder may be sintered or bonded to form the metal body around the nonmetal part, with the metal body then contracting as it sinters and cools to form the seal around the nonmetal part. The nonmetal part may be a glass or ceramic part, and may include electrical conductors passing through nonmetal part, and sealed in holes in the glass or ceramic. The object may be any of a variety of devices such as an electro-explosive device or an electronics device.