Nanoparticle-enabled grain refinement in other materials systems

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Fig. 3 Nanoparticle-enabled grain refinement in other materials systems. Nanoparticle-enabled grain refinement in other materials systems. (A and B) FIB images of Al-10vol%TiB2 cast by furnace cooling (0.7 K/s) showing the distribution of TiB2 nanoparticles and ultrafine Al grains. (C) TEM image of Al-10vol%TiB2 (0.7 K/s) showing one ultrafine Al grain surrounded by TiB2 nanoparticles. (D) Al grain size distribution of Al-10vol%TiB2 (0.7 K/s). (E and F) SEM image of Zn-5vol%WC by air cooling (3.7 K/s). (G) FIB image of Zn-5vol%WC (3.7 K/s). (H) Zn grain size distribution of Zn-5vol%WC (3.7 K/s). Chezheng Cao et al. Sci Adv 2019;5:eaaw2398 Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).