Pressureless sintering of ultra-low-binder WC-Ni Hardmetals via bimodal powder packing and colloidal processing - Barja, Aida M; Ferrari, B; Tejado, E; Ferrandez-Montero, A; Zaefferer, Stefan; Pastor, J Y; Sanchez-Herencia, A J (INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2026)