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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
(a) Average contours of the QD and CL for layers CL0.25 and CL1. Lateral thicknesses of the CL at the base and close to the apex are named t1 and t3, respectively. (b) Lateral thicknesses t1 and t3 of the CL versus the CGR.