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Abstrakty
WC/Cu composite powders were synthesized by co-precipitation and subsequent reduction-carburization process. The precipitates contained W-Cu compounds fabricated using a chemical procedure from a mixture of copper nitrate and ammonium paratungstate in distilled water. In order to synthesize the WCCu composite powders, dried precipitates were calcined at 823 K in air and then reduced and carburized by carbon monooxide (CO). The non-isothermal mechanism of reduction-carburization of the calcined powders in carbon monoxide was investigated by thermogravimetry, differential thermogravimetry and X-ray diffraction analyses. The optimum reduction-carburization temperature was determined as 1065 K. The microstructures of the powders were characterized by the scanning electron microscopy.
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Tom
Strony
413--420
Opis fizyczny
Bibliogr. 11 poz.
Twórcy
autor
autor
autor
autor
autor
- Department of Materials and Metallurgical Engineering Iran University of Science and Technology Narmak, Tehran 16846-13114 Iran
Bibliografia
- [1] FINDIK F., UZUN H., Mater. Design, 24 (2003), 489.
- [2] DAVIS JR, Copper and Copper Alloys (ASM Specialty Handbook), ASM International, 2001.
- [3] DESHPANDE P.K., LIN R.Y., Mater. Sci. Eng., 418 A (2006), 137.
- [4] DESHPANDE P.K., LI J.H., LIN R.Y., Mater. Sci. Eng., 429 A (2006), 58.
- [5] LI Y., QU X., ZHEMG Z., LEI C., ZOU Z., YU S., Int. J. Ref. Met. Hard Mater., 21 (2003), 259.
- [6] MOON I.H., KIM E.P., PETZOW G., Powder Metall., 41 (1998), 51.
- [7] ZHAO N., LI J., YANG X., J. of Mater. Sci., 39 (2004), 4829.
- [8] COSTA F.A., SILVA A.P., GOMES U.U., Powder Tech., 134 (2003), 123.
- [9] VENABLES D.S., BROWN M.E., Thermochim. Acta, 291(1997), 131.
- [10] CHENG J., SONG P., GONG Y., CAI Y., XIA Y., Mater. Sci. Eng., 488A (2008), 453.
- [11] NAVA A.F.C., ZMBRANO M.M.L., URIBE S.A., BEDOLLA BECERRIL J.E., Int. J. Min. Proc., 20 (1987), 137.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0013-0022