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International Journal of Nanomanufacturing最新文献

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Flame synthesis of highly graphitic carbon nano-sphere using cobalt-based catalyst 钴基催化剂火焰合成高石墨碳纳米球
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004721
I. Bu, L. Kao
{"title":"Flame synthesis of highly graphitic carbon nano-sphere using cobalt-based catalyst","authors":"I. Bu, L. Kao","doi":"10.1504/IJNM.2017.10004721","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004721","url":null,"abstract":"In this paper a simple and inexpensive method of preparing carbon-based nanomaterials via Co catalyst has been demonstrated. It was shown by using various optical and structural characterisations that well-graphitised carbon nano spheres can be prepared through the proposed process. Through the data extracted from Raman spectra it was found that the as deposited samples showed much lower Id/Ig than previously reported candle-synthesised carbon nanomaterials. Furthermore, under optimised condition, it was found that low resistivity sample can be produced which could be potentially useful in applications as counter electrode in dye sensitise solar cells.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"161"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48299163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PEDOT:PSS coated Gold Nanopillar Microelectrodes with Ultralow Impedance for Neural Interfaces PEDOT:PSS包覆的神经界面超低阻抗金纳米柱微电极
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004717
C. Nick, H. Schlaak, C. Thielemann
{"title":"PEDOT:PSS coated Gold Nanopillar Microelectrodes with Ultralow Impedance for Neural Interfaces","authors":"C. Nick, H. Schlaak, C. Thielemann","doi":"10.1504/IJNM.2017.10004717","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004717","url":null,"abstract":"Improving the neuron-electrode interface has been a focus of biomedical research for the last decade. Low impedance, high charge storage capacities and small geometrical surface area are desired for excellent recording conditions. A common way to improve this interface is to increase the electrochemically active surface area of the electrode using nanoporous or nanostructured electrode materials. In this paper, the fabrication of microelectrodes with very high aspect ratio gold nanopillars coated with the conducting polymer PEDOT:PSS is presented. The electrodes are simulated, manufactured and studied using scanning electron microscopy, atomic force microscopy, impedance spectroscopy, cyclic voltammetry and neural cell culture experiments. We show that PEDOT:PSS coated nanopillar electrodes have improved capacity, reduced impedance and in-vitro recordings reveal high signal-to-noise ratio. Depending on pillar height the impedance is more than 350 times smaller compared to planar gold electrodes at 1 kHz and reveals an electrode capacity more than 1,000 times higher.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"109"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42227270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrasonic assisted electrolytic grinding of titanium alloy Ti-6Al-4V 钛合金Ti-6Al-4V的超声辅助电解磨削
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004720
Yongbo Wu, Sisi Li, M. Nomura, Satoshi Kobayahi, T. Tachibana
{"title":"Ultrasonic assisted electrolytic grinding of titanium alloy Ti-6Al-4V","authors":"Yongbo Wu, Sisi Li, M. Nomura, Satoshi Kobayahi, T. Tachibana","doi":"10.1504/IJNM.2017.10004720","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004720","url":null,"abstract":"Aiming at the development of a novel grinding technology for the high efficient machining of difficult to machine materials such as titanium alloy Ti-6Al-4V, an ultrasonic assisted electrolytic grinding (UAEG) method was proposed. Firstly, an experimental apparatus was constructed by installing an electrolytic mechanism on an existing 3D CNC machine tool attached with an ultrasonic spindle. Then, after the performance test has been carried out for the constructed apparatus, UAEG experiments of Ti-6Al-4V specimen were conducted on the apparatus to investigate the effects of the ultrasonic vibration of grinding wheel and the electrolytic phenomenon on the grinding force and the work surface quality. The experimental results indicate that the ultrasonic assisted electrolytic grinding is greatly beneficial to the decrease in grinding force and the improvement in the work surface quality compared to conventional grinding.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"152"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42159641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Precision cutting of single crystal silicon using CBN tool with large top corner radius 大顶角半径CBN刀具对单晶硅的精密切削
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004722
Yuya Kobaru, E. Kondo, R. Iwamoto
{"title":"Precision cutting of single crystal silicon using CBN tool with large top corner radius","authors":"Yuya Kobaru, E. Kondo, R. Iwamoto","doi":"10.1504/IJNM.2017.10004722","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004722","url":null,"abstract":"A lot of studies on the ultra-precision cutting of single crystal silicon have been reported and they used the diamond cutting tools. However, the diamond cutting tools are very expensive. Therefore, if the single crystal diamond tools were replaced with sintered CBN tools, the cost of machining could be fairly reduced. However, it is easily expected that the CBN tools wear out faster than the diamond tools. Therefore, it is very important to find out the optimum cutting conditions in order to reduce tool wear. In this study, precision cutting of single crystal silicon was machined with using CBN cutting tools having chamfer at cutting edge and large nose radius, and the effect of feed rate, cutting speed, depth of cut and nose radius on the tool wear were studied. As a result, the local minimum of width of flank wear land appeared at the feed rate of 30~50 µm/rev.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"170"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48311640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Dislocation dynamic simulation of dislocation pattern evolution in the early fatigue stages of aluminium single crystal 铝单晶疲劳早期位错模式演化的位错动态模拟
International Journal of Nanomanufacturing Pub Date : 2017-03-02 DOI: 10.1504/IJNM.2017.10003132
Jinxuan Bai, Q. Bai, Xin He, Qingchun Zhang
{"title":"Dislocation dynamic simulation of dislocation pattern evolution in the early fatigue stages of aluminium single crystal","authors":"Jinxuan Bai, Q. Bai, Xin He, Qingchun Zhang","doi":"10.1504/IJNM.2017.10003132","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10003132","url":null,"abstract":"The two-dimensional discrete dislocation dynamics simulations under fully periodic boundary conditions has been employed to study the dislocation pattern evolution in the early stages of fatigue in aluminium single crystal. Long-range force among of dislocations is solved by line elasticity model, and short-range force is obtained by constitutive equations of dislocation nucleation, slip, pileup and annihilate. Dislocation movement mechanisms of single-slip-oriented and multi-slip systems are simulated and the evolution process of fatigue pattern is revealed. The result shows that dislocation quantity and microstructure strongly depend on external load and internal configuration. The dislocation pattern of single-slip-oriented generate matrix wall, and positive dislocations are vertical alignment and negative dislocations are at the angle of 45° with slip oriented in the initial stage. For multi-slip system, maze structure of dislocations is produced during dislocation multiplication, which eventually transforms into persistent slip band. The result is consistent with the existing experiment.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"12"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42292737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The forming characteristic in the single-point incremental forming of a complex shape 复杂形状单点渐进成形的成形特性
International Journal of Nanomanufacturing Pub Date : 2017-03-02 DOI: 10.1504/IJNM.2017.10003134
V. Do, Bong-Hyun Lee, S. Yang, Young-Suk Kim
{"title":"The forming characteristic in the single-point incremental forming of a complex shape","authors":"V. Do, Bong-Hyun Lee, S. Yang, Young-Suk Kim","doi":"10.1504/IJNM.2017.10003134","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10003134","url":null,"abstract":"Incremental sheet forming is popularly applied because of its reduced cost, flexibility, and applicability for small batch production. To reduce the manufacturing cost and time consumption, the incremental forming of a complex shape is implemented by combining two forming methods into one process: positive and negative incremental forming. The experiments were done to confirm the applicable ability of the method with the material aluminium Al3004-P. The finite element simulation was done with the ABAQUS explicit finite element code, and its results were compared with the experimental results.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"33"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46515631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Etching and smooth processing of GaAs surface based on the confined etchant layer technique 基于受限蚀刻层技术的砷化镓表面蚀刻与光面加工
International Journal of Nanomanufacturing Pub Date : 2017-03-02 DOI: 10.1504/IJNM.2017.10003137
Y. Cao, Shu Guo, Yongda Yan, Zhenjiang Hu, Xuesen Zhao, Zengqiang Li
{"title":"Etching and smooth processing of GaAs surface based on the confined etchant layer technique","authors":"Y. Cao, Shu Guo, Yongda Yan, Zhenjiang Hu, Xuesen Zhao, Zengqiang Li","doi":"10.1504/IJNM.2017.10003137","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10003137","url":null,"abstract":"Confined etchant layer technique (CELT) is an effective electrochemical etching method for micro-machining, which can be used to replicate complex three-dimensional microstructures and implement rough surface smooth processing. Through the coupling between electrochemically induced chemical etching processes and mechanical motion, a combination of high machining efficiency, low machining cost and good machining accuracy can be reached. In this paper, a CELT processing platform was established. By combining simulations with experiments, we studied the influence of the solution proportioning on the etching results of GaAs surface and verified the capacity of the CELT technique to achieve smooth processing. It is shown that by taking advantage of CELT, the surface roughness can reach nano-scale.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"71"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43527120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurement-based modelling of cutting forces in micro-milling of Inconel 718 基于测量的铬镍铁合金718微铣削切削力建模
International Journal of Nanomanufacturing Pub Date : 2017-03-02 DOI: 10.1504/IJNM.2017.10003131
Xiaohong Lu, Zhenyuan Jia, Hua Wang, Xiaochen Hu, G. Li, Li-kun Si
{"title":"Measurement-based modelling of cutting forces in micro-milling of Inconel 718","authors":"Xiaohong Lu, Zhenyuan Jia, Hua Wang, Xiaochen Hu, G. Li, Li-kun Si","doi":"10.1504/IJNM.2017.10003131","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10003131","url":null,"abstract":"Due to its superior properties, nickel-based superalloy Inconel 718 can meet the requirements of micro parts with the high strength at high temperatures which have three-dimensional geometry structure like stepped surface, deep-hole, thin wall and so on. However, Inconel 718 is difficult to cut. Now, there are few researches on the cutting forces in micro-milling of Inconel 718, and the micro-milling mechanism of nickel-based superalloy is almost blank, while the prediction and control of micro-milling forces is important to reveal the micro-milling mechanism of nickel-based superalloy, to realise processing parameter optimisation, to reduce the tool wear, etc... To predict the cutting forces during micro-milling Inconel 718 process, coated carbide tools are used to micro-milling micro groove on Inconel 718, and the orthogonal type experiments are adopted. The influences of cutting parameters on cutting forces are studied. The micro-milling forces prediction model is built based on the experimental results, which can be used to predict the cutting forces during micro-milling of Inconel 718 nickel-based superalloy. To prove the validity of the built model, the significance test and fitting degree test are conducted.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47734608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Effect of the electric-field distribution on the morphology of dot-array gratings fabricated by AFM-based nanolithography 电场分布对原子力显微镜纳米光刻点阵光栅形貌的影响
International Journal of Nanomanufacturing Pub Date : 2017-03-02 DOI: 10.1504/IJNM.2017.10003133
Kexiang Hu, Fei Long, Qingkang Wang
{"title":"Effect of the electric-field distribution on the morphology of dot-array gratings fabricated by AFM-based nanolithography","authors":"Kexiang Hu, Fei Long, Qingkang Wang","doi":"10.1504/IJNM.2017.10003133","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10003133","url":null,"abstract":"Local electric-field-induced anodic oxidation is one of the earliest and most extensively studied techniques in bias-assisted AFM nanolithography. The electric field provides the oxidation kinetics of nanoscale electrochemical reaction and controls the spacial resolution of the fabricated structures. Once electric field is formed, its distribution and intensity can be modified by changing the tip-sample voltage and separation. In this paper, the influence of the bias voltage on the three-dimensional (3D) radial electric field intensity distribution in the space between the tip and the sample, the influence of the electric field strength on dot-array grating structures and the morphology distribution of the nanodot structure in the dot-array grating have been analysed deeply.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"23"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48933839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental study on shear thickening polishing method for curved surface 曲面剪切增厚抛光方法的实验研究
International Journal of Nanomanufacturing Pub Date : 2017-03-02 DOI: 10.1504/IJNM.2017.10003138
B. Lyu, Dong Chenchen, J. Yuan, Sun Lei, Min Li, Dai Weitao
{"title":"Experimental study on shear thickening polishing method for curved surface","authors":"B. Lyu, Dong Chenchen, J. Yuan, Sun Lei, Min Li, Dai Weitao","doi":"10.1504/IJNM.2017.10003138","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10003138","url":null,"abstract":"A new polishing method shear thickening polishing (STP) was proposed to improve the polishing efficiency in the process to obtain extremely smooth curved surfaces. A non-Newtonian fluid with shear thickening property was utilised as the base fluid of the polishing slurry, in which the abrasives were dispersed. In this study, the influence of polishing speed, abrasive concentration and abrasive size on the surface roughness and material removal rate were investigated by experiments. The experimental results revealed that the polishing speed has the greatest influence on the polishing effect. With the increase of the polishing speed, the material removal rate increases rapidly and smoother surfaces with better roughness can be obtained. Abrasive concentration affects the polishing results in a manner that is similar to polishing speed. Abrasive size seems to have no effect on the surface roughness, but material removal rate increases as the abrasive size decreases. Finally, surface roughness of bearing steel work-piece (O35 mm) was reduced rapidly from Ra = 105.95 nm to Ra = 6.99 nm after one hours' processing under the appropriate conditions.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"81"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42230329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
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