The covers are composed by Mr. Christian Harnoth (www.zur-gestaltung.de) with the input of the guest editors and Mr. Florian Majcen. The front cover shows the administration building, the so called Schloss (Castle) (Photo: FAU) of the Friedrich‐Alexander University of Erlangen‐Nürnberg (FAU) and some examples of materials science and engineering activities which are featured in this special issue.

中文翻译：

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封面图片

封面由克里斯蒂安·哈诺斯（Christian Harnoth）先生（www.zur-gestaltung.de）以及客座编辑和Florian Majcen先生共同创作。封面显示了行政大楼，即埃尔兰根-纽伦堡（FAU）腓特烈·亚历山大大学（FAU）的所谓的城堡（城堡）（照片：FAU）以及本期特刊中介绍的一些材料科学和工程活动示例。