首页|Fabrication of functionally graded W-Cu composite via variable speed induction sintering and subsequent infiltration
Fabrication of functionally graded W-Cu composite via variable speed induction sintering and subsequent infiltration
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NSTL
Elsevier
In the current study, a novel approach is proposed as a method for producing Tungsten Copper composite with functionally gradient structure. In this process, a green tungsten powder compact is sintered using a special designed induction sintering set up with variable velocities to create a gradient structure. Then, the copper is infiltrated into the sintered graded tungsten scaffold at 1200 degrees C at hydrogen atmosphere. To investigate the applicability of the process, tungsten powder is pressed and the compact is sintered using induction selective sintering with variable speeds (V1-V4). Tungsten skeleton was infiltrated with copper and W-Cu composite is produced. The mechanical properties, microstructure, and electrical conductivity at different zones were examined. Corresponding to the gradient structure, the composite showed gradients in hardness and electrical conductivity. The microhardness is varied from 219 Hv to 330 Hv, and electrical conductivities changed from 15 to 33%IACS. This method seems to be very interesting and promising for future industrial applications.
NSTL
Elsevier
