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    Review—The Fabrication of Tungsten

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    Tungsten has been used for many years by the electrical and electronic industries in the form of small component parts such as filaments, electrodes, grids, contacts, and various other items. These very specialized applications were basically due to the high-temperature properties of this metal. More recently, due to the high melting point of tungsten as well as its exceptional high-temperature strength, interest has been focused on the production of much larger sections for specialized structural applications. These large size ingots, billets, and special shapes are rapidly becoming available and are being incorporated in very specialized designs. The main factors limiting the extensive use of tungsten are its lack of oxidation resistance in air at elevated temperatures, its high density, and the problem of fabricating the consolidated metal. In each of these problems, noticeable progress is being made, especially in fabrication techniques. An excellent summary of the fabrication of tungsten was recently published by Barth.

    Author Information:

    Toensing, C. H.
    Manager, Powder Metals Research, Firth Sterling, Inc.General Electric Co., Pittsburgh, Pa.

    Committee/Subcommittee: B02.10

    DOI: 10.1520/STP46338S