Abstract
The nucleation and spontaneous pattern formation of AlN via the combustion of Al- kC-AlF3 mixtures (k is mol of C) in nitrogen is investigated. The formation of 2D AlN hexagonal facet micro- and nanoplates, dodecagon-type AlN crystals, and six-wing hexagons is highlighted. Phase-field simulation in 2D-space is applied to interpret and/or anticipate the growth mechanisms of such crystals in limited space.
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