Modeling of abnormal grain growth in (111) oriented and nanotwinned copper

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Abstract
Uni-modal, not bi-modal, of abnormal grain growth has been observed in (111) oriented and nano-twinned Cu films. Because of the highly anisotropic microstructure, our kinetic analysis and calculation showed that it is the mobility which dominates the uni-modal growth, in which the lateral growth rate can be two orders of magnitude higher than the vertical growth rate. As a consequence, the abnormal grain growth has been converted from bi-modal to uni-modal.
Funding Information
  • Ministry of Science and Technology, Taiwan (MOST-108-3017-F-009-003, MOST-110-2634-F-009, MOST 108-2633-E-009-001-027, MOST-108-3017-F-009-003, MOST-110-2634-F-009, MOST 108-2633-E-009-001-027, MOST-108-3017-F-009-003, MOST-110-2634-F-009, MOST 108-2633-E-009-001-027, MOST-108-3017-F-009-003, MOST-110-2634-F-009, MOST 108-2633-E-009-001-027)