Nanotechnology and Precision Engineering最新文献_第7页

Magnetorheological finishing of an irregular-shaped small-bore complex component using a small ball-end permanent-magnet polishing head 用小球端永磁抛光头对异形小口径复杂部件进行磁流变抛光

Nanotechnology and Precision Engineering Pub Date : 2019-09-01 DOI: 10.1016/j.npe.2019.10.001

Henan Liu, Jian Cheng, Tingzhang Wang, Mingjun Chen

引用次数: 11

Manipulating fluid with vibrating 3D-printed paddles for applications in micropump 操纵流体与振动3d打印桨在微泵的应用

Nanotechnology and Precision Engineering Pub Date : 2019-09-01 DOI: 10.1016/j.npe.2019.08.001

Zhiyong Tang, Xiufeng Shao, Jianze Huang, Jinyuan Yao, Guifu Ding

{"title":"Manipulating fluid with vibrating 3D-printed paddles for applications in micropump","authors":"Zhiyong Tang, Xiufeng Shao, Jianze Huang, Jinyuan Yao, Guifu Ding","doi":"10.1016/j.npe.2019.08.001","DOIUrl":"10.1016/j.npe.2019.08.001","url":null,"abstract":"<div><p>This paper presents a novel working mechanism of a micropump using micropaddles (MPs) to actively manipulate fluid based on 3D printing technology. The novel working principle is systematically discussed using analysis, computation and experiment methods. A theoretical model is established to research the working mechanism and crucial parameters for driving ability, such as MPs shape, size, vibration amplitude and frequency. Two different 3D printing techniques that simplify the multi-step process into only one step are introduced to manufacture the prototype pump for investigating the principle experimentally. A testing system is designed to evaluate the flow rate of pumps with eight different vibrating paddles. A maximum flux of 127.9 mL/min is obtained at an applied voltage of 9 V. These experiments show that the active-type mechanical pump could not only freely control flow direction but also change flux by adopting different shapes or distribution ways. The advantage of the novel micropump is the application of the MP structure into the micropump system to actively manipulate fluid with flexibility and high driving ability at fairly low power.</p></div>","PeriodicalId":87330,"journal":{"name":"Nanotechnology and Precision Engineering","volume":"2 3","pages":"Pages 95-104"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.npe.2019.08.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48623160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Formation of graphene oxide from carbon rods of zinc-carbon battery wastes by audiosonic sonication assisted by commercial detergent 商用洗涤剂辅助声波处理锌碳电池废料碳棒制备氧化石墨烯

Nanotechnology and Precision Engineering Pub Date : 2019-06-01 DOI: 10.1016/j.npe.2019.03.001

Wipsar Sunu Brams Dwandaru, Lia Desi Parwati, Rhyko Irawan Wisnuwijaya

{"title":"Formation of graphene oxide from carbon rods of zinc-carbon battery wastes by audiosonic sonication assisted by commercial detergent","authors":"Wipsar Sunu Brams Dwandaru, Lia Desi Parwati, Rhyko Irawan Wisnuwijaya","doi":"10.1016/j.npe.2019.03.001","DOIUrl":"10.1016/j.npe.2019.03.001","url":null,"abstract":"<div><p>This study aims to determine the effect of audiosonic sonication in normal modes on the formation of graphene oxide (GO) from carbon rods of zinc-carbon (ZnC) battery wastes. The method used in this study was sonication with an audiosonic frequency in normal modes, assisted by a surfactant solution derived from a commercial detergent. A graphite-detergent solution was exposed to audiosonic waves using a frequency of 170 Hz for 3 h with a pattern on the surface of the solution. The graphite solution was a mixture of 0.8 g of graphite powder and 100 ml of distilled water that was mixed using a blender for 2 min. 25 ml of the solution was then taken and dripped with two drops of detergent solution containing 0.2 g detergent powder dissolved into 100 ml distilled water, so that a graphite-detergent solution was obtained. The tools used in this study included UV–Visible spectroscopy (UV–Vis), Fourier Transform InfraRed spectroscopy (FTIR), and a Scanning Electron Microscope (SEM). The solution that was audiosonicated showed a strong visible nodal pattern on its surface. The UV–Vis spectroscopy produced absorbance peaks at wavelengths of 225 nm and 270 nm, and the FTIR indicated the presence of OH and C<img>C functional groups, which suggested the existence of GO. The SEM images showed GO in the form of coral-like materials.</p></div>","PeriodicalId":87330,"journal":{"name":"Nanotechnology and Precision Engineering","volume":"2 2","pages":"Pages 89-94"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.npe.2019.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41928256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Modeling thermal and mechanical cancellation of residual stress from hybrid additive manufacturing by laser peening 激光强化混合增材制造残余应力的热力学消除建模

Nanotechnology and Precision Engineering Pub Date : 2019-06-01 DOI: 10.1016/j.npe.2019.07.001

Guru Madireddy , Chao Li , Jingfu Liu , Michael P. Sealy

{"title":"Modeling thermal and mechanical cancellation of residual stress from hybrid additive manufacturing by laser peening","authors":"Guru Madireddy , Chao Li , Jingfu Liu , Michael P. Sealy","doi":"10.1016/j.npe.2019.07.001","DOIUrl":"10.1016/j.npe.2019.07.001","url":null,"abstract":"<div><p>Additive manufacturing (AM) of metals often results in parts with unfavorable mechanical properties. Laser peening (LP) is a high strain rate mechanical surface treatment that hammers a workpiece and induces favorable mechanical properties. Peening strain hardens a surface and imparts compressive residual stresses improving the mechanical properties of a material. This work investigates the role of LP on layer-by-layer processing of 3D printed metals using finite element analysis. The objective is to understand temporal and spatial residual stress development after thermal and mechanical cancellation caused by cyclically coupling printing and peening. Results indicate layer peening frequency is a critical process parameter affecting residual stress redistribution and highly interdependent on the heat generated by the printing process. Optimum hybrid process conditions were found to exists that favorably enhance mechanical properties. With this study, hybrid-AM has ushered in the next evolutionary step in AM and has the potential to profoundly change the way high value metal goods are manufactured.</p></div>","PeriodicalId":87330,"journal":{"name":"Nanotechnology and Precision Engineering","volume":"2 2","pages":"Pages 49-60"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.npe.2019.07.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44757207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

An optical glass plane angle measuring system with photoelectric autocollimator 用光电自准直仪实现的光学玻璃平面角测量系统

Nanotechnology and Precision Engineering Pub Date : 2019-06-01 DOI: 10.1016/j.npe.2019.06.001

Yinguo Huang, Yong Yang, Jiaqi Liang, Zhengqing Miao, Meirong Zhao, Yelong Zheng

引用次数: 6

Bibliometric analysis of micro-nano manufacturing technologies 微纳制造技术的文献计量学分析

Nanotechnology and Precision Engineering Pub Date : 2019-06-01 DOI: 10.1016/j.npe.2019.05.001

Maryna Bodnariuk , Ruslan Melentiev

{"title":"Bibliometric analysis of micro-nano manufacturing technologies","authors":"Maryna Bodnariuk , Ruslan Melentiev","doi":"10.1016/j.npe.2019.05.001","DOIUrl":"10.1016/j.npe.2019.05.001","url":null,"abstract":"<div><p>Manufacturing is the primary industry promoting economic and social development. For the past 30 years, the global trends of preciseness and device miniaturisation have promoted manufacturing to the micro (μ) and nano (η) scale. Identification of the most promising micro-nano manufacturing technologies (MNMT) is of interest to industry, academia and private and national science investing foundations. Considering the exponential broadening of the research area and an enormous volume of literature, providing an overview of the state of the art is far beyond the scope of a technical review paper. This study performs bibliometric analysis of a stream of academic literature devoted to μ- and η-machining. The main goals of the analysis are to assess the current core and trends in the field of MNMT. Literature and citation statistics from 1988 were collected from the Web of Science, Google Scholar, Scopus, Engineering Village, ScienceDirect and SpringerLink databases and were then analysed and illustrated with Microsoft Excel and VOSviewer software. The top keywords, articles, journals, authors, universities and countries were identified according to different parameters. The index of normalised influence was offered to evaluate the top element in each category. We observed that the most powerful keywords were present in well-known articles published in prominent journals by authoritative scientists at leading universities in the countries that are most actively engaged in MNMT. The implications of the research outcomes for investors and academicians are summarised in the conclusion.</p></div>","PeriodicalId":87330,"journal":{"name":"Nanotechnology and Precision Engineering","volume":"2 2","pages":"Pages 61-70"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.npe.2019.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41588911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Nonlinear phase error analysis of equivalent thickness in a white-light spectral interferometer 白光光谱干涉仪等效厚度的非线性相位误差分析

Nanotechnology and Precision Engineering Pub Date : 2019-06-01 DOI: 10.1016/j.npe.2019.07.003

Tong Guo, Qianwen Weng, Bei Luo, Jinping Chen, Xing Fu, Xiaotang Hu

引用次数: 1

Research on the process of fabricating a multi-layer metal micro-structure based on UV-LIGA overlay technology 基于UV-LIGA叠加技术的多层金属微结构制备工艺研究

Nanotechnology and Precision Engineering Pub Date : 2019-06-01 DOI: 10.1016/j.npe.2019.07.002

Yali Ma , Wenkai Liu , Chong Liu

{"title":"Research on the process of fabricating a multi-layer metal micro-structure based on UV-LIGA overlay technology","authors":"Yali Ma , Wenkai Liu , Chong Liu","doi":"10.1016/j.npe.2019.07.002","DOIUrl":"10.1016/j.npe.2019.07.002","url":null,"abstract":"<div><p>In this paper, we report the study of the process of fabricating a multi-layer metal micro-structure using UV-LIGA overlay technology, including mask fabrication, substrate treatment, and UV-LIGA overlay processes. To solve the process problems in the masking procedure, the swelling problem of the first layer of SU-8 thick photoresist was studied experimentally. The 5 μm line-width compensation and closed 20 μm and 30 μm isolation strips were designed and fabricated around the micro-structure pattern. The pore problem in the Ni micro-electroforming layer was analyzed and the electroforming parameters were improved. The pH value of the electroforming solution should be controlled between 3.8 and 4.4 and the current density should be below 3 A/dm<sup>2</sup>. To solve the problems of high inner stress and incomplete development of the micro-cylinder hole array with a diameter of 30 μm, the lithography process was optimized. The pre-baking temperature was increased via gradient heating and rose every 5 °C from 65 °C to 85 °C and then remained at 85 °C for 50 min – 1 h. In addition, the full contact exposure was used. Finally, a multi-layer metal micro-structure with high precision and good quality of micro-electroforming layer was fabricated using UV-LIGA overlay technology.</p></div>","PeriodicalId":87330,"journal":{"name":"Nanotechnology and Precision Engineering","volume":"2 2","pages":"Pages 83-88"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.npe.2019.07.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47780380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Introduction to New Editor in Chief 新总编辑简介

Nanotechnology and Precision Engineering Pub Date : 2019-03-01 DOI: 10.1016/S2589-5540(19)30017-0

引用次数: 0

Enhancement of surface wettability via micro- and nanostructures by single point diamond turning 单点金刚石车削通过微纳米结构增强表面润湿性

Nanotechnology and Precision Engineering Pub Date : 2019-03-01 DOI: 10.1016/j.npe.2019.03.008

Nicolás Cabezudo , Jining Sun , Behnam Andi , Fei Ding , Ding Wang , Wenlong Chang , Xichun Luo , Ben B. Xu

{"title":"Enhancement of surface wettability via micro- and nanostructures by single point diamond turning","authors":"Nicolás Cabezudo , Jining Sun , Behnam Andi , Fei Ding , Ding Wang , Wenlong Chang , Xichun Luo , Ben B. Xu","doi":"10.1016/j.npe.2019.03.008","DOIUrl":"10.1016/j.npe.2019.03.008","url":null,"abstract":"<div><p>Studies on surface wettability have received tremendous interest due to their potential applications in research and industrial processes. One of the strategies to tune surface wettability is modifying surface topography at micro- and nanoscales. In this research, periodic micro- and nanostructures were patterned on several polymer surfaces by ultra-precision single point diamond turning to investigate the relationships between surface topographies at the micro- and nanoscales and their surface wettability. This research revealed that single-point diamond turning could be used to enhance the wettability of a variety of polymers, including polyvinyl chloride (PVC), polyethylene 1000 (PE1000), polypropylene copolymer (PP) and polytetrafluoroethylene (PFTE), which cannot be processed by conventional semiconductor-based manufacturing processes. Materials exhibiting common wettability properties (<em>θ</em> ≈ 90°) changed to exhibit “superhydrophobic” behavior (<em>θ</em> ˃ 150°). Compared with the size of the structures, the aspect ratio of the void space between micro- and nanostructures has a strong impact on surface wettability.</p></div>","PeriodicalId":87330,"journal":{"name":"Nanotechnology and Precision Engineering","volume":"2 1","pages":"Pages 8-14"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.npe.2019.03.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42530668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16