Commenced in January 2007
Paper Count: 31097
Recycling of Tungsten Alloy Swarf
Authors: A. A. Alhazza
Abstract:The recycling process of Tungsten alloy (Swarf) by oxidation reduction technique have been investigated. The reduced powder was pressed under a pressure 20Kg/cm2 and sintered at 1150°C in dry hydrogen atmosphere. The particle size of the recycled alloy powder was 1-3 μm and the shape was regular at a reduction temperature 800°C. The chemical composition of the recycled alloy is the same as the primary Swarf.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055956Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1604
 E. Lassner and W.D. Schubert, 1999. Tungsten Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds, New York, Kluwer Academic.
 G. D. Rieck, 1967. Tungsten and its compound, Oxford, Pergamon Press Ltd.
 H. Yuehui, C. Libao, H. Baiyun and P.K. Liaw, Recycling of heavy metal alloy turning to powder by oxidation reduction process. International Journal of Refractory Metals and Hard Materials, 2003, 21, 227-231.
 V.K. Sikka and C.J. Rosa, The oxidation kinetics of tungsten and the determination of oxygen diffusion coefficient in tungsten trioxide. Corrosion Science, 2003, 20, P.1201-1219.
 J. N. Albiston and F. R. Sale, Thermogravimetric Studies of the Hydrogen Reduction of Nickel Tungstate, Thermochimica Acta, 103 (1986) 175-180.
 P. Walkden and F. R. Sale ,Silver-Tungsten contacts by the hydrogen Reduction of silver Tungstate, 28th Holm conf. On Electrical Contacts, p. 101-107.
 F. R. Sale and J. N. Albiston,Production and sintering of Ag-W composites containing Ni ,P/M Conf. ,Orlando (1988).