Baytekin-Gerngross M, Gerngross M D, Carstensen J, Adelung R
Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany.
Nanoscale Horiz. 2016 Nov 17;1(6):467-472. doi: 10.1039/c6nh00140h. Epub 2016 Sep 5.
Surfaces are the crucial and limiting factor in nearly all metal applications, especially when technologically relevant alloys are employed. Insufficient surface properties on the nano- and microscale of metals determine, e.g. metal-polymer composite stability, implant biocompatibility, or corrosion resistance. Conventional surface preparation is just like an arbitrary cut through the metal body optimized for bulk behavior so that such surfaces contain various element mixtures and complex microstructures in which grains and lattice planes vary in their chemical stability from weak to strong. In contrast, the here described novel nanoscale-surface sculpturing based on semiconductor etching knowledge turns surfaces of everyday metals into their most stable configuration, but leaves the bulk properties unaffected. Thus, nanoscale-sculpturing ensures stronger, reliable joints to nearly all materials, reduces corrosion vastly, and generates a multitude of multifunctional surface properties not limited to those shown below.
表面是几乎所有金属应用中的关键限制因素，特别是在使用具有技术相关性的合金时。金属在纳米和微观尺度上不足的表面性能决定了诸如金属 - 聚合物复合材料稳定性、植入物生物相容性或耐腐蚀性等。传统的表面处理就像是对为整体性能优化的金属体进行任意切割，使得这样的表面包含各种元素混合物和复杂的微观结构，其中晶粒和晶格平面的化学稳定性从弱到强各不相同。相比之下，这里描述的基于半导体蚀刻知识的新型纳米级表面雕刻将日常金属的表面转变为其最稳定的构型，但不影响整体性能。因此，纳米级雕刻确保了与几乎所有材料形成更强、更可靠的结合，极大地减少了腐蚀，并产生了众多不限于以下所示的多功能表面性能。
