3 papers
cond-mat.mtrl-sci2026
Fabrication of Dense Ultrafine-Grained MoW, MoWNb, and MoWNbTa Alloys: Influence of Cobalt Doping on Sintering and Grain Growth
Keyu Cao, Sashank Shivakumar, Jian Luo
Dense ultrafine-grained (UFG) refractory MoW, MoWNb, and MoWNbTa alloys were fabricated by combining high-energy ball milling (HEBM) and spark plasma sintering (SPS), achieving ~92…
cond-mat.mtrl-sci2022
High-temperature stable refractory high-entropy nanoalloys with enhanced sinterability
Mingde Qin, Sashank Shivakumar, Jian Luo
Nanocrystalline alloys (nanoalloys) are prone to grain growth. It is known that grain boundary segregation and precipitation can stabilize nanoalloys, but the stabilization becomes…
cond-mat.mtrl-sci2021
A New Type of Compositionally Complex M5Si3 Silicides: Cation Ordering and Unexpected Phase Stability
Sashank Shivakumar, Mingde Qin, Dawei Zhang +3
A new type of compositionally complex (medium- or high-entropy) M5Si3 silicides is synthesized. Both (V1/5Cr1/5Nb1/5Ta1/5W1/5)5Si3 and (Ti1/5Zr1/5Nb1/5Mo1/5Hf1/5)5Si3 form single-p…