Study of the control process and fabrication of microstructures using a tip-based force control system

Zhang, Jingran; Yan, Yongda; Hu, Zhenjiang; Zhao, Xuesen

doi:10.1177/0954405416682276

Cited by 8 publications

(8 citation statements)

References 44 publications

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“…The schematic diagram of the control system and the properties and parameters of the controller are presented in the previous study. 30…”

Section: Experimental Setup and Detailsmentioning

confidence: 99%

“…The schematic diagram of the control system and the properties and parameters of the controller are presented in the previous study. 30 Figure 2 shows the scanning electron microscopy (SEM) images of a regular triangular pyramid (CUBE CORNER/020; Synton-MDP, Nidau, Switzerland) and a single-point diamond tip. The regular triangular pyramid with a face angle of 35.26°and an apex angle of 90°and the single-point diamond tip with a rake angle g o of 0°, a clearance angle a o of 6°and a tool included angle e r of 60°were used in the cutting process.…”

Section: Experimental Setup and Detailsmentioning

confidence: 99%

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Effect of material removal state on the selection of theoretical models when scratching single-crystal copper using the load modulation approach

Yan

Wang

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part B:

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This article presents a constant force–controlled cutting approach with two different geometries of cutting tools. The methodologies for establishing two theoretical models were proposed to quantitatively predict the required applied normal forces at the expected machined depths, which were obtained with a solution to the horizontal projection of the sample–tip contact area and the multi-edge form tip based on a generalized cutting approach, respectively. The selection of the proposed theoretical models is dependent on the two material removal states, respectively, in which one is plowing for a regular triangular pyramid and the other one is cutting chips for a single-point diamond tip. To verify the feasibility and effectiveness of the proposed theoretical models and cutting strategy, a constant normal force cutting of microgrooves was implemented on a single-crystal copper substrate, while realizing constant cutting depths. The difference between the setting normal forces and the theoretical normal forces was analyzed by comparing the experimental results and the model prediction results. The aim of the present study was to investigate the effect of the geometry of the cutting tools on the material removal state and on the selection of the theoretical models.

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“…The schematic diagram of the control system and the properties and parameters of the controller are presented in the previous study. 30…”

Section: Experimental Setup and Detailsmentioning

confidence: 99%

Section: Experimental Setup and Detailsmentioning

confidence: 99%

Effect of material removal state on the selection of theoretical models when scratching single-crystal copper using the load modulation approach

Yan

Wang

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Recently, tip-based micro/nanomachining methods [26][27][28][29][30] have been used to fabricate SERS substrates with two main advantages. First, the wear of the tip is negligible during machining on the metal surface due to the low hardness of the metals used (copper, aluminum).…”

Section: Introductionmentioning

confidence: 99%

Label-free highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

Zhang¹,

Jia²,

Yan³

et al. 2019

Beilstein J. Nanotechnol.

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Nanostructures have been widely employed in surface-enhanced Raman scattering (SERS) substrates. Recently, in order to obtain a higher enhancement factor at a lower detection limit, hierarchical structures, including nanostructures and nanoparticles, appear to be viable SERS substrate candidates. Here we describe a novel method integrating the nanoindentation process and chemical redox reaction to machine a hierarchical SERS substrate. The micro/nanostructures are first formed on a Cu(110) plane and then Ag nanoparticles are generated on the structured copper surface. The effect of the indentation process parameters and the corrosion time in the AgNO 3 solution on the Raman intensities of the SERS substrate with hierarchical structures are experimentally studied. The intensity and distribution of the electric field of single and multiple Ag nanoparticles on the surface of a plane and with multiple micro/nanostructures are studied with COMSOL software. The feasibility of the hierarchical SERS substrate is verified using R6G molecules. Finally, the enhancement factor using malachite green molecules was found to reach 5.089 × 10 9 , which demonstrates

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“…Recently, the tip-based micro/nanomachining method [26][27][28][29][30] has been used to fabricate SERS substrates. Compared to other methods, the characteristics of this method are mainly two advantages.…”

Section: Introductionmentioning

confidence: 99%

Non-labeled and highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

Zhang¹,

Jia²,

Wang³

et al. 2019

Preprint

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Nanostructures and nanoparticles are two typical structures which have already been widely employed as the Surface Enhanced Raman Scattering (SERS) substrates. In most studies, they are employed separately as SERS substrates. Recently, the hierarchical structures including nanostructures and nanoparticles present better SERS characteristics. However, how to machine such hierarchical structures is a big problem. In the present study, a novel method integrating the nanoindentation process and chemical redox reaction to machine the hierarchical SERS substrate is provided. Micro/nanostructures are formed on the Cu(110) plane first, and then Ag nanoparticles are generated on the structured Copper surface. Effects of parameters of the indentation process and the corrosion times in the AgNO3 solutions on the Raman intensities of the SERS substrate with hierarchical structures are experimentally studied. The intensity and distribution of the electric field of single and multi Ag nanoparticles on the surface of plane and micro/nanostructures are studied with the COMSOL software. The feasibility of the hierarchical SERS substrate is verified using R6G molecules. Finally, the enhancement factor of malachite green molecules can reach to 5.089×109, which proves that the method is simple, replicable and low cost method for machining the hierarchical SERS substrate.

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Study of the control process and fabrication of microstructures using a tip-based force control system

Cited by 8 publications

References 44 publications

Effect of material removal state on the selection of theoretical models when scratching single-crystal copper using the load modulation approach

Effect of material removal state on the selection of theoretical models when scratching single-crystal copper using the load modulation approach

Label-free highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

Non-labeled and highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

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