Behavior of Cu-WC-Ti Metal Composite Afterusing Planetary Ball Milling

Copper based composites reinforced with WC and Ti particles were prepared using planetary ball-mill. The experiment was designed by using Taguchi technique and milling was carried out in an air for several hours. The powder was characterized before and after milling using the SEM, TEM and X-ray for microstructure and for possible new phases. Microstructures show that milled particles size and reduction in particle size depend on many parameters. The distance d between planes of atoms estimated from X-ray powder diffraction data and TEM image. X-ray diffraction patterns of the milled powder did not show clearly any new peak or energy shift, but the TEM images show a significant change in crystalline structure of corporate on titanium in the composites.




References:
[1] T. Raghu, et al., "Synthesis of nanocrystalline copper-tungsten alloys by
mechanical alloying," Materials Science and Engineering A, vol. 304-
306, pp. 438-441, 2001.
[2] Y. Li, et al., "Properties of W-Cu composite powder produced by a
thermo-mechanical method," International Journal of Refractory Metals
and Hard Materials, vol. 21, pp. 259-264, 2003.
[3] Y. V. Baikalova and O. I. Lomovsky, "Solid state synthesis of tungsten
carbide in an inert copper matrix," Journal of Alloys and Compounds,
vol. 297, pp. 87-91, 2000.
[4] Z. Hen and et al., "Synthesis and stability of amorphous Cu 60 Ti 40-x
Zr x alloys by mechanical alloying," Journal of Physics: Condensed
Matter, vol. 5, p. 477, 1993.
[5] P. Šebo, et al., "Influence of Ti and Zr on the bond strength between
carbon rod and Cu-Ti and/or Cu-Zr alloys," Journal of Materials
Science, vol. 35, pp. 503-507, 2000.
[6] A. Evirgen and M. L. Öveçoglu, "Characterization investigations of a
mechanically alloyed and sintered Al-2 wt%Cu alloy reinforced with
WC particles," Journal of Alloys and Compounds, vol. 496, pp. 212-217,
2010.
[7] P. Feng, et al., "Mechanically activated reactive synthesis of refractory
molybdenum and tungsten silicides," International Journal of Refractory
Metals and Hard Materials, vol. 26, pp. 173-178, 2008.
[8] K. Gan and M. Gu, "The compressibility of Cu/SiCp powder prepared
by high-energy ball milling," Journal of Materials Processing
Technology, vol. 199, pp. 173-177, 2008.
[9] B. E.-H. a. D. M. ROY, SERVICE DESIGN FOR SIX SIGMA / A Road
Map for Excellence: John Wiley & Sons, Inc, 2005.
[10] S. D. J.M. Guilemany, J. Nin, and J.R. Miguel, "Study of the Properties
of WC-Co Nanostructured Coatings Sprayed by High-Velocity
Oxyfuel," Journal of Thermal Spray Technology, vol. 14(3), p. 7, 2005.
[11] S. N. Alam, "Synthesis and characterization of W-Cu nanocomposites
developed by mechanical alloying," Materials Science and Engineering:
A, vol. 433, pp. 161-168, 2006.