TiC dispersion strengthened tungsten matrix composites were prepared by the mechanical milling

and the optimization of the milling parameters

such as milling time

milling velocity

ball-powder ratio

the liquid to the ball ratio

was carried out based on observing the W/TiC grain size

microstructure of the powders

and testing mechanical properties of the sintered samples.The results show that the optimized milling parameters are presented as follows:the 40

5

0hof the milling time

the 400

5

00r/min of the milling speed

the 1.5

2

.5∶1of the liquid to the ball and the powders ratio

and the 10

1

5∶1of the ball to the powders ratio.And the powders present a sphere-like shape with the uniform grain size and the smooth surface.For the sintered composites after the milling

both of the relative density and the flexural strength are improved greatly.