航空友好的金属表面在水下长期稳定性
Alexander B Tesler1, Stefan Kolle2,3, Lucia H Prado4
1Department of Materials Science and Engineering, Institute for Surface Science and Corrosion WW4-LKO, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany. alexander.tesler@fau.de.
Nature materials
|September 18, 2023
概括
研究人员开发了稳定的有机友的表面,可以在水下数月捕捉空气薄膜 (塑质子). 这一突破阻止了血液,细菌和海洋生物的粘附,使新的水下工程应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 生物材料是一种生物材料.
背景情况:
- 气友表面在水下捕获空气薄膜 (塑),但它们的不稳定性限制了实际应用.
- 现有的塑技术是超稳定的,无法提供长期的水下性能.
研究的目的:
- 为水下应用设计有机友好的合金表面,可显著延长石寿命.
- 研究一种新的策略,以在工程表面上实现空气膜的长期稳定性.
主要方法:
- 使用电化学化,制造层次结构的表面.
- 使用化表面活性剂进行低表面能量涂层的应用.
- 在长时间的水下浸泡过程中对塑料板的稳定性和防腐性质的评估.
主要成果:
- 实现了稳定的有机友的表面,其塑寿命可以在水下持续数月.
- 在工程表面上显著减少了血液粘附.
- 成功地防止了细菌和海洋生物的粘附 (barnacles,贝类) 当被淹没.
结论:
- 成功证明了一种实现飞表面长期稳定性的一般策略.
- 开发的表面为以前无法实现的水下工程应用提供了潜力.
- 该技术对抗污染和生物相容的水下材料解决方案显示出希望.
相关概念视频
01:11Buoyancy and Stability for Submerged and Floating Bodies
1.9K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
1.9K
02:49Corrosion
25.0K
The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
25.0K