The SEM images of 5–20 nm nanometer powder mixture at different scales. Lihong Su Caixia Wan Jianren Zhou Yiguang Wang Liang Wang Yanling Ai Xu Zhao 10.1371/journal.pone.0072964.g002 https://plos.figshare.com/articles/figure/_The_SEM_images_of_5_8211_20_nm_nanometer_powder_mixture_at_different_scales_/816017 <p>The SEM images of 5–20 nm nanometer powder mixture at different scales.</p> 2013-10-07 01:33:47 sem images nm nanometer