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International Journal of Nanomanufacturing最新文献

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Optimal design and simulation of the stepped beam of a large-scale ultra-precision optical aspheric machine 大型超精密光学非球面机阶梯光束的优化设计与仿真
International Journal of Nanomanufacturing Pub Date : 2017-07-17 DOI: 10.1504/IJNM.2017.10005584
Lin Sun, Shuming Yang, Pu Zhao, Jianjun Ding, Xingyuan Long, Zhuangde Jiang
{"title":"Optimal design and simulation of the stepped beam of a large-scale ultra-precision optical aspheric machine","authors":"Lin Sun, Shuming Yang, Pu Zhao, Jianjun Ding, Xingyuan Long, Zhuangde Jiang","doi":"10.1504/IJNM.2017.10005584","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10005584","url":null,"abstract":"We have designed a precision machine for the manufacture of large-scale optical aspheric mirrors. The beam is one key component of the machine and it has a feature of three steps with the length of 3,100 mm. The technique driven at the centre of gravity has been used in the beam design. This feature makes a contribution to optimise force distribution, increase stiffness and reduce deformation so as to realise high accuracy.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"210"},"PeriodicalIF":0.0,"publicationDate":"2017-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48382162","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
Processing characteristics of ultrathin SrTiO3 ceramic substrates 超薄SrTiO3陶瓷衬底的加工特性
International Journal of Nanomanufacturing Pub Date : 2017-07-17 DOI: 10.1504/IJNM.2017.10005593
Pan Jisheng, Guoming Li, Q. Yan, Xiaowei Zhang
{"title":"Processing characteristics of ultrathin SrTiO3 ceramic substrates","authors":"Pan Jisheng, Guoming Li, Q. Yan, Xiaowei Zhang","doi":"10.1504/IJNM.2017.10005593","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10005593","url":null,"abstract":"To solve the fracture problem of ultrathin, soft-brittle and large warp SrTiO3 ceramic substrates, a new anti-broken two-sided lapping method was proposed. With this new method, the materials at the convex peak of the substrate surface which thinnest thickness is only 0.19 mm but warp up to 0.6 mm were removed firstly. Then more and more materials were removed and a flat SrTiO3 substrate without broken was obtained ultimately. The main material removal method of SrTiO3 substrate was the fracture of the crystallites rolled by abrasive, while some crystallites were pulled out. As the material was removed, the substrate surface became higher density. Using 1.5 μm Al2O3 slurry, a surface with Ra 0.0285 μm was obtained by using this method. An ultra-smooth surface with Ra 0.0038 m was achieved by cluster magnetorheological polishing, the grain boundary and coarse grain structure on the surface could be seen clearly.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"247"},"PeriodicalIF":0.0,"publicationDate":"2017-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45355953","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
Scratching of SiC ceramics at two dimensional pre-stressing SiC陶瓷在二维预应力下的划痕
International Journal of Nanomanufacturing Pub Date : 2017-07-17 DOI: 10.1504/IJNM.2017.10005597
Zhang Gaofeng, Yijiang Zeng, Wenbo Zhang
{"title":"Scratching of SiC ceramics at two dimensional pre-stressing","authors":"Zhang Gaofeng, Yijiang Zeng, Wenbo Zhang","doi":"10.1504/IJNM.2017.10005597","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10005597","url":null,"abstract":"A stress field model was built to study the effects of pre-stressing value, normal and tangential load on the three principal stresses and maximum shear stress when the silicon carbide (SiC) ceramics were scratched under two dimensional pre-stressing, and the scratching tests of SiC ceramic were conducted by using a Rockwell diamond indenter at different pre-stress values and normal loads. Scratching induced damage was assessed and characterised via destructive inspection techniques and progressive lapping techniques combined with the digital microscope. Acoustic emission (AE) technology was also used for the online monitoring of the damage. The results showed that, for a given scratching load, the amplitude of AE signals was reduced as the pre-stress values increasing, and surface/subsurface damage of SiC ceramics induced by two dimensional pre-stress scratching was less than that by conventional scratching. So one can believe that the two dimensional pre-stress method can contribute to decreasing the machining damage of brittle materials.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"270"},"PeriodicalIF":0.0,"publicationDate":"2017-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41339642","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
Fabrication of helical micro pins by electrochemical machining 电化学加工螺旋微销的制备
International Journal of Nanomanufacturing Pub Date : 2017-07-17 DOI: 10.1504/IJNM.2017.10005592
L. Hourng, C. Liu, Z. Fen
{"title":"Fabrication of helical micro pins by electrochemical machining","authors":"L. Hourng, C. Liu, Z. Fen","doi":"10.1504/IJNM.2017.10005592","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10005592","url":null,"abstract":"Helical tools have been proven to enhance the circulation of electrolyte between electrodes in electrochemical micro-drilling. However, the fabrication of micro helical tools is difficult by traditional machining methods. The aim of the present article is to fabricate a helical tungsten micro pin by electrochemical machining. Experimental results show that a helical pin can only be fabricated in the limiting current conditions, and the length of threaded region is proportional to the anode rotating rate. Under the conditions of applied voltage equal to 2.6 V, machining time of two minutes, and the anode rotating rate of 4,000 rpm, an optimal micro helical electrode with thread depth around 17 micro-metre can be obtained. The mechanism for the formation of helical groove is well explained.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"235"},"PeriodicalIF":0.0,"publicationDate":"2017-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45895156","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
In-plane calibration for AFM AFM平面内校准
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004723
Changsheng Li, Shuming Yang, Chenying Wang, Lin Sun, Zhuangde Jiang
{"title":"In-plane calibration for AFM","authors":"Changsheng Li, Shuming Yang, Chenying Wang, Lin Sun, Zhuangde Jiang","doi":"10.1504/IJNM.2017.10004723","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004723","url":null,"abstract":"Currently, the x, y scale and the orthogonality of atomic force microscopy (AFM) was independently calibrated by the traditional in-plane calibration methods. There exist theoretical errors because the other two error terms are neglected during the calibration of a certain error term. It has been found that the traditional calibration methods have a rather big theoretical error which is unbearable for nanometrology. In this paper, we propose a calibration method based on multi-measurement of a one-dimensional grating. The x, y scale and the orthogonality can be calibrated simultaneously. This new calibration method was also modified to eliminate the effect of AFM drift by keeping the parallelism between the slow scan direction of AFM and the grating lines of the one-dimensional grating.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"185"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45058313","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
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
Fabrication of Janus graphene hybrids with controlled structure and high stability 具有可控结构和高稳定性的Janus石墨烯杂化材料的制备
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004719
Yaling Li, Jiao Wu, Kun Qian, Jingjing Wan, Ying Wang, Baohong Liu, Xiaojing Zhang
{"title":"Fabrication of Janus graphene hybrids with controlled structure and high stability","authors":"Yaling Li, Jiao Wu, Kun Qian, Jingjing Wan, Ying Wang, Baohong Liu, Xiaojing Zhang","doi":"10.1504/IJNM.2017.10004719","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004719","url":null,"abstract":"Janus hybrids, the anisotropic materials, have displayed very strong potentials in diverse research fields like life science and photology due to their unique properties. In this study, using graphene as an efficient nanoparticles (NPs) carrier, we present the fabrication of two-dimensional (2D) Janus hybrids (gold NPs/graphene) superstructures through a rapid, solventless sputtering method in 10-30 seconds. The micropores in graphene (~0.5 nm) is much smaller than the sputtered gold NPs, which can allow the sheet material to mesh gold NPs in one side to form a Janus structure. The size and morphology of gold NPs can be fine controlled on graphene by adjusting the sputtering current and time, while the resulting graphene hybrids enjoy tunable NPs area density and desirable thermal stability. The performance of hybrids has also been explored through standard electrochemical experiments.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"139"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41488459","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
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
Study on the effect of grain boundary on the mechanical properties of polysilicon by molecular dynamics simulation 分子动力学模拟研究晶界对多晶硅力学性能的影响
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004718
Xiaoguang Guo, Changheng Zhai, R. Kang, D. Guo
{"title":"Study on the effect of grain boundary on the mechanical properties of polysilicon by molecular dynamics simulation","authors":"Xiaoguang Guo, Changheng Zhai, R. Kang, D. Guo","doi":"10.1504/IJNM.2017.10004718","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004718","url":null,"abstract":"Three-dimensional molecular dynamics simulations are conducted to investigate the effect of grain boundary on the mechanical properties of polycrystalline silicon. The load-displacement curves and nanohardness curves are obtained. The coordination analysis method is introduced to visualise the motion of the silicon atoms. The diagram about stress distribution is applied to analyse the mechanical behaviour of polysilicon under stress. The results show that when the moving direction of the indenter is almost the same as the grain boundary, grain boundaries become sliding source, which causes the suddenly unloading phenomenon. As a result, the nanohardness is continuously decreasing in the process of sliding. When the moving direction of the indenter is perpendicular to the grain boundary, the dislocations of the polysilicon are limited at grain boundaries, pile-up phenomenon occurs, which means the hardening mechanism is directly related to the nanoscale grain boundaries.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"129"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48249848","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
Experiment on self-sharpening fine super-hard abrasive tool 自锐超硬精细磨具试验研究
International Journal of Nanomanufacturing Pub Date : 2017-04-27 DOI: 10.1504/IJNM.2017.10004716
Feng Kaiping, Zhou Zhao-zhong, H. Fan, J. Yuan
{"title":"Experiment on self-sharpening fine super-hard abrasive tool","authors":"Feng Kaiping, Zhou Zhao-zhong, H. Fan, J. Yuan","doi":"10.1504/IJNM.2017.10004716","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10004716","url":null,"abstract":"In order to improve the efficiency of ultra-precision processing, the self-sharpening fine super-hard abrasive tool is presented. Diamond abrasive tool samples adding three different soluble fillers Zn, CaO and SiO2 were prepared separately and soaked in dressing dissolvent to verify dissolving capacity of the soluble fillers in the dressing dissolvent. Grinding experiments of using three novel abrasive tools were carried out compared with conventional super-hard diamond abrasive tool. The experiment result showed that the combination of abrasive adding filler Zn and FeCl3 solution showed good performance, the surface roughness of the K9 glass reduced from Ra = 1.9307 µm to Ra = 0.1011 µm after 4 h grinding. During grinding, soluble fillers exposed on the abrasive surface were dissolved by dressing dissolvent, worn abrasive grains shed, new abrasive grains were exposed to achieve abrasive dressing.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"97"},"PeriodicalIF":0.0,"publicationDate":"2017-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46868251","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
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