启发动态纳米 Tribology 的路径:光介导的激活控制与纳米悬浮的界面摩擦
Leonardo M Leidens1,2, Alexandre F Michels1, Giovanna Machado3
1PPGMAT, University of Caxias do Sul, Caxias do Sul, RS, 95070-560, Brazil.
Small (Weinheim an der Bergstrasse, Germany)
|July 16, 2024
概括
研究人员使用滑剂中的光活性纳米粒子演示了光控制摩擦. 这种光三极学进步允许通过光对固体纳米悬浮系统中的界面摩擦进行可逆调整.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 表面科学是一门学科.
背景情况:
- 控制纳米 tribological 属性是很困难的.
- 响应刺激的材料提供了潜在的解决方案.
- 光三极学使用光来调节纳米摩擦.
研究的目的:
- 研究滑剂中的光活性纳米粒子,以控制被动表面上的摩擦.
- 在固体纳米悬浮接口上演示光诱导的界面摩擦调整.
- 探索光调制摩擦的基本机制.
主要方法:
- 使用石英晶微平衡器 (QCM) 来测量摩擦.
- 使用的二氧化纳米颗粒的水性悬浮剂.
- 在黑暗和明亮条件下进行实验,包括循环测试和泽塔电位测量.
主要成果:
- 在固体纳米悬浮系统中首次展示了可调节光线的界面摩擦.
- 在较高摩擦 (暗) 和较低摩擦 (亮) 状态之间观察到可逆过渡.
- 与表面电荷的光感应变化和增加的粒子间排斥相关的摩擦变化.
结论:
- 滑剂中的光活性纳米颗粒可以通过光来积极控制纳米 Tribological 属性.
- 光诱导的表面电荷调制是摩擦调节的关键.
- 这些发现对纳米立博学,纳米流体学,纳米浮力学和光活性悬浮物特性有影响.
关键词:
在QCM中,QCM是QCM.TiO2 2 氧化的使用方法灯光 灯光 灯光 灯光 灯光纳米颗粒是一种纳米粒子.纳米 Tribology 的研究.摄影三角学 摄影三角学在Tribotronics公司,更多相关视频
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