Zhejiang University

Sidong Wu

Wule Zhu

Fang Han

Xiang Zhao

Weijian Zhang

Qi Sun

Wei Gao

Bingchun Jia

Jingyuan Wang

Caoyang Xue

Bingfeng Ju

A device for multi-energy field induced atomic-scale CNC machining in an environmental atmosphere comprises an electromagnetic shielding chamber and a control mechanism, wherein an environmental chamber is arranged in the electromagnetic shielding chamber, a workpiece platform is arranged at the bottom of the environmental chamber, and a nanotool driven by a nanotool actuator is arranged at the top of the environmental chamber, and a gas inlet and a gas outlet which are connected to the environmental chamber are formed in the electromagnetic shielding chamber; and the control mechanism is used for controlling the workpiece platform and the nanotool actuator and applying energy fields including a force field, a temperature field, an electric field, an optical field and a magnetic field. The device has the advantages of atomic precision, high efficiency, low cost and good universality.

Device and method for multi-energy field induced atomic-scale computer numerical control (CNC) machining in environmental atmosphere

A photoelectric fluid field cluster catalytic method for atomic-scale deterministic processing, comprises the following steps: selecting nanoparticles with photocatalytic activity as a photocatalytic medium, and using a photoreduction method to realize the precipitation of metal nanoparticles on a surface of the photocatalytic medium, thus creating photoelectrocatalytic clusters; illuminating a coupling area between a surface to be processed of a workpiece, the photoelectrocatalytic clusters and a flexible tool with a catalytic light source, and simultaneously applying a bias voltage to a conductive tray of the workpiece; and applying a normal load to a flexible tool head and setting a rotation speed to generate a hydrodynamic pressure to drive a polishing solution to flow, thus enabling controllable removal with atomic-level precision. The disclosure utilizes the metal particles in the photoelectrocatalytic clusters to capture photogenerated electrons, thereby prolonging the lifetime of photogenerated carriers.

Photoelectric fluid field cluster catalytic method for atomic-scale deterministic processing

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Hangzhou, China

Sidong Wu