“…It is considered that the powder particles were impacted heavily by WC balls during high energy ball milling resulting in iterative deformation, which caused the strain. The increase of the local strain caused the increase of dislocation density [21]. With the increase of milling time, dislocation and the new interfaces created all increase.…”
“…It is considered that the powder particles were impacted heavily by WC balls during high energy ball milling resulting in iterative deformation, which caused the strain. The increase of the local strain caused the increase of dislocation density [21]. With the increase of milling time, dislocation and the new interfaces created all increase.…”
“…In addition, the shifted angles were also caused by a reduction of crystallite size and/or the accumulation of lattice strain during mechanical alloying as shown in Table 5. This indicated that the formation of fine crystallite was typically affected by increasing the number of collisions per unit time during milling process [15,16]. Fig.…”
Section: Phase and Microstructure Analysismentioning
“…The ambient atmosphere should be strictly controlled for the reason that the oxygen content in the powders milled in air atmosphere is higher than in argon atmosphere. Therefore, the powders milled in air atmosphere will be covered with a thin oxide layer, making them brittle to produce too much finer powders [15]. The powders of selected particle size scales were observed by scanning electron microcopy (SEM).…”
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.