The targeted etching process of “nanoscale-sculpturing” roughens the upper layer of metal (here aluminium, 20 µm = 0.02 mm), thereby creating a 3D-structure with tiny hooks. A surface treated with this process can inter-lock like a three-dimensional puzzle with the surfaces of almost all other materials, forming unbreakable bonds. With this method, it is even possible to create bonds between aluminium and copper. Photo: Melike Baytekin-Gerngroß
GCSE Chemistry module: Structure and Bonding By the end of this topic you will have covered: - Ionic and covalent bonding - Metal structure and properties - Ionic compounds - Simple covalent molecules - Giant covalent structures GCSE revision videos and apps from LearnersCloud: http://www.learnerscloud.com/student/products/gcse-chemistry To find out more and to start a free trial visit: http://www.learnerscloud.com/student/home/gcse/gcse-revision
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