TY - JOUR
AU - Zhang, Huan
AB - Tungsten (W) is a brittle material at room temperature making it very difficult to fabricate. Although the lack of ductility remains a difficult challenge, nano-sized and ultrafine-grained (UFG) structures offer the potential to overcome tungsten’s room-temperature brittleness. One way to manufacture UFG W is to compact and sinter nano-sized W powder. It is challenging, however, to control grain growth during sintering. As one method to inhibit grain growth, the effect of Ti-based additives on the densification and grain growth of nano-W powders was investigated in this study. Addition of 1% Ti into tungsten led to more than a 63% decrease in average grain size of sintered samples at comparable density levels. It was found that sintering in Ar yielded a finer grain size than sintering in H2 at similar densities. The active diffusion mechanisms during sintering were different for W-1% Ti nano powders sintered in Ar and H2.

TI - The Effects of Atmosphere on the Sintering of Ultrafine-Grained Tungsten with Ti
JF - JOM
DO - 10.1007/s11837-016-2121-9
DA - 2016-10-03
UR - https://www.deepdyve.com/lp/springer-journals/the-effects-of-atmosphere-on-the-sintering-of-ultrafine-grained-JGrdlJNR9l
SP - 2864
EP - 2868
VL - 68
IS - 11
DP - DeepDyve
ER -