Journal articles: 'Micro/ Nano Molding'

1

Ito, Hiroshi. "Micro-/Nano-Molding." Seikei-Kakou 30, no. 7 (June 25, 2018): 371–78. http://dx.doi.org/10.4325/seikeikakou.30.371.

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ITO, Hiroshi. "Nano/Micro-Molding." Journal of the Japan Society for Technology of Plasticity 57, no. 663 (2016): 340–44. http://dx.doi.org/10.9773/sosei.57.340.

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ITO, Hiroshi. "Polymer Micro-and Nano-Molding." Journal of the Japan Society for Technology of Plasticity 52, no. 610 (2011): 1143–47. http://dx.doi.org/10.9773/sosei.52.1143.

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Nishiyabu, Kazuaki, Kenichi Kakishita, and Shigeo Tanaka. "Micro Metal Injection Molding Using Hybrid Micro/Nano Powders." Materials Science Forum 534-536 (January 2007): 381–84. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.381.

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This study aims to investigate the effects of hybrid micro/nano powders in a micro metal injection molding (μ-MIM) process. A novel type of mixing-injection molding machine was used to produce tiny specimens (<1mm in size) with high trial efficiency using a small amount of feedstock (<0.05cm3 in volume). Small dumbbell specimens were produced using various feedstocks prepared by changing binder content and fraction of nano-scale Cu powder (130nm in particle size). The effects of adding the fraction of nano-scale Cu powder on the melt viscosity of the feedstock, microstructure, density and tensile strength of sintered parts were discussed.

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Yoo, Young Eun, Young Ho Seo, Seong Kon Kim, Tai Jin Je, and Doo Sun Choi. "Injection Molding Nano and Micro Pillar Arrays." Key Engineering Materials 326-328 (December 2006): 449–52. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.449.

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An injection molding technology is developed to replicate pillars in micro/nano scale on the thin plastic substrate. Two types of pillar are to be replicated and one is square type of 10um x 10um, the other is circular type whose diameter is in range of 100 nm ~ 300 nm. For both types of the pillars, the height is about 250 nm. A pattern master is first fabricated on the photo resist(PR) layer spin coated to about 250nm of thickness on chrome/quartz plate by patterning e-beam writing and then developing the PR. The patterns on the PR master are transferred by nickel electro-plating to fabricate rigid nickel stamper. Using this nickel stamper, a substrate with nano pillars on its surface is injection molded by optimizing the conditions to fabricate DNA separating chip.

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KAKISHITA, Kenichi, Kazuaki NISHIYABU, and Shigeo TANAKA. "2722 Micro Metal Injection Molding Using Hybrid Micro/Nano Powder." Proceedings of the JSME annual meeting 2006.1 (2006): 173–74. http://dx.doi.org/10.1299/jsmemecjo.2006.1.0_173.

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Yu, P. C., Q. F. Li, J. Y. H. Fuh, T. Li, and P. W. Ho. "Micro injection molding of micro gear using nano-sized zirconia powder." Microsystem Technologies 15, no. 3 (July 12, 2008): 401–6. http://dx.doi.org/10.1007/s00542-008-0673-5.

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Asgar, Md Ali, Jun Kim, Muhammad Refatul Haq, Taekyung Kim, and Seok-min Kim. "A Comprehensive Review of Micro/Nano Precision Glass Molding Molds and Their Fabrication Methods." Micromachines 12, no. 7 (July 12, 2021): 812. http://dx.doi.org/10.3390/mi12070812.

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Micro/nano-precision glass molding (MNPGM) is an efficient approach for manufacturing micro/nanostructured glass components with intricate geometry and a high-quality optical finish. In MNPGM, the mold, which directly imprints the desired pattern on the glass substrate, is a key component. To date, a wide variety of mold inserts have been utilized in MNPGM. The aim of this article is to review the latest advances in molds for MNPGM and their fabrication methods. Surface finishing is specifically addressed because molded glass is usually intended for optical applications in which the surface roughness should be lower than the wavelength of incident light to avoid scattering loss. The use of molds for a wide range of molding temperatures is also discussed in detail. Finally, a series of tables summarizing the mold fabrication methods, mold patterns and their dimensions, anti-adhesion coatings, molding conditions, molding methods, surface roughness values, glass substrates and their glass transition temperatures, and associated applications are presented. This review is intended as a roadmap for those interested in the glass molding field.

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Guo, Wu, Zhaogang Liu, Yan Zhu, and Li Li. "Fabrication of Poly(Vinylidene Fluoride)/Graphene Nano-Composite Micro-Parts with Increased β-Phase and Enhanced Toughness via Micro-Injection Molding." Polymers 13, no. 19 (September 27, 2021): 3292. http://dx.doi.org/10.3390/polym13193292.

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Based on poly(vinylidene fluoride)/graphene (PVDF/GP) nano-composite powder, with high β-phase content (>90%), prepared on our self-designed pan-mill mechanochemical reactor, the micro-injection molding of PVDF/GP composite was successfully realized and micro-parts with good replication and dimensional stability were achieved. The filling behaviors and the structure evolution of the composite during the extremely narrow channel of the micro-injection molding were systematically studied. In contrast to conventional injection molding, the extremely high injection speed and small cavity of micro-injection molding produced a high shear force and cooling rate, leading to the obvious “skin-core” structure of the micro-parts and the orientation of both PVDF and GP in the shear layer, thus, endowing the micro-parts with a higher melting point and crystallinity and also inducing the transformation of more α-phase PVDF to β-phase. At the injection speed of 500 mm/s, the β-phase PVDF in the micro-part was 78%, almost two times of that in the macro-part, which was beneficial to improve the dielectric properties. The micro-part had the higher tensile strength (57.6 MPa) and elongation at break (53.6%) than those of the macro-part, due to its increased crystallinity and β-phase content.

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Ito, Hiroshi. "ANTEC 2010 Ⅱ. Reports on Nano/Micro Molding, Injection Molding and Medical Platics Session." Seikei-Kakou 22, no. 10 (September 20, 2010): 574–77. http://dx.doi.org/10.4325/seikeikakou.22.574.

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Ito, Hiroshi. "ANTEC 2009 II. Reports on Nano/Micro Molding, Injection Molding and Medical Platics Session." Seikei-Kakou 21, no. 10 (September 20, 2009): 614–17. http://dx.doi.org/10.4325/seikeikakou.21.614.

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12

Tosello, Guido. "Latest Advancements in Micro Nano Molding Technologies—Process Developments and Optimization, Materials, Applications, Key Enabling Technologies." Micromachines 13, no. 4 (April 13, 2022): 609. http://dx.doi.org/10.3390/mi13040609.

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Micro and nano molding technologies are continuously being developed due to enduring trends such as increasing miniaturization and the higher functional integration of products, devices and systems [...]

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Saha, Biswajit, Wei Quan Toh, Erjia Liu, Shu Beng Tor, David E. Hardt, and Junghoon Lee. "A review on the importance of surface coating of micro/nano-mold in micro/nano-molding processes." Journal of Micromechanics and Microengineering 26, no. 1 (November 19, 2015): 013002. http://dx.doi.org/10.1088/0960-1317/26/1/013002.

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Oh, Joo Won, Won Sik Lee, and Seong Jin Park. "Nanopowder Effect on Fe Nano/Micro-Bimodal Powder Injection Molding." Metallurgical and Materials Transactions A 49, no. 11 (August 6, 2018): 5535–45. http://dx.doi.org/10.1007/s11661-018-4851-5.

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Weng, Can, Tao Ding, Mingyong Zhou, Jiezhen Liu, and Hao Wang. "Formation Mechanism of Residual Stresses in Micro-Injection Molding of PMMA: A Molecular Dynamics Simulation." Polymers 12, no. 6 (June 17, 2020): 1368. http://dx.doi.org/10.3390/polym12061368.

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Injection molding is an economical and effective method for manufacturing polymer parts with nanostructures and residual stress in the parts is an important factor affecting the quality of molding. In this paper, taking the injection molding of polymethyl methacrylate (PMMA) polymer in a nano-cavity with an aspect ratio of 2.0 as an example, the formation mechanism of residual stresses in the injection molding process was studied, using a molecular dynamics simulation. The changes in dynamic stress in the process were compared and analyzed, and the morphological and structural evolution of molecular chains in the process of flow were observed and explained. The effects of different aspect ratios of nano-cavities on the stress distribution and deformation in the nanostructures were studied. The potential energy, radius of gyration and elastic recovery percentage of the polymer was calculated. The results showed that the essence of stress formation was that the molecular chains compressed and entangled under the flow pressure and the restriction of the cavity wall. In addition, the orientation of molecular chains changed from isotropic to anisotropic, resulting in the stress concentration. At the same time, with the increase in aspect ratio, the overall stress and deformation of the nanostructures after demolding also increased.

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Shin, Hong Gue, Heon Young Kim, and Byeong Hee Kim. "Nano Molding Technology for Optical Storage Media with Large-Area Nano-Pattern." Key Engineering Materials 364-366 (December 2007): 925–30. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.925.

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Nano hot or thermal embossing has many advantages of comparatively few process steps, simple operation, relatively low tooling cost and high replication accuracy for small features. However, because of its long processing time, it has been known as being less competitive than nano injection molding. In order to overcome the weakness of long processing time, the high speed nano hot embossing system has been developed and its characteristics were investigated. Nanopatterned stampers made of Ni and Si were fabricated by the laser mastering and electroforming process and the DRIE and LPCVD or thermal oxidation process respectively. In order to make the processing time shorter and get relatively higher aspect ratio nano/micro features, especially, the temperatures of the molds were controlled actively and precisely during the embossing process. Through various experiments, nano embossing parameters, such as temperature, pressure and processing time, are optimized and the high aspect ratio nano features could be obtained.

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NISHIYABU, Kazuaki, Kenichi KAKISHITA, Toshiko OSADA, Satoru MATSUZAKI, and Shigeo TANAKA. "2204 A Fundamental Study on Micro/Nano Hybrid Powders Based Micro Powder Injection Molding." Proceedings of the JSME annual meeting 2005.1 (2005): 601–2. http://dx.doi.org/10.1299/jsmemecjo.2005.1.0_601.

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Choi, Joon-Phil, Taeho Ha, Min-Kyo Jung, Yeo-Ul Song, and Pil-Ho Lee. "Characterization of Powder Loading for Micro/Nano Powder Feedstock for Micro Powder Injection Molding." Journal of the Korean Society of Manufacturing Technology Engineers 32, no. 3 (June 30, 2023): 135–42. http://dx.doi.org/10.7735/ksmte.2023.32.3.135.

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19

MARUO, Shoji. "Development of Functional Devices Using Micro/Nano Stereolithography and Molding Techniques." NIPPON GOMU KYOKAISHI 87, no. 9 (2014): 382–88. http://dx.doi.org/10.2324/gomu.87.382.

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MARUO, Shoji. "F221005 Development and application of micro/nano stereolithography and molding techniques." Proceedings of Mechanical Engineering Congress, Japan 2012 (2012): _F221005–1—_F221005–3. http://dx.doi.org/10.1299/jsmemecj.2012._f221005-1.

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21

You, Woo-Kyung, Joon-Phil Choi, Su-Min Yoon, and Jai-Sung Lee. "Low temperature powder injection molding of iron micro-nano powder mixture." Powder Technology 228 (September 2012): 199–205. http://dx.doi.org/10.1016/j.powtec.2012.05.016.

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22

Doerffel, Christoph, Gábor Jüttner, and Roland Dietze. "Micro Test Specimens for Compound Engineering with Minimum Material Needs." Materials Science Forum 825-826 (July 2015): 928–35. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.928.

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The use of micro test specimens is a good way to characterize micro injection molding processes and the resulting material properties. The material properties of microparts may differ from standard injection molding parts, due to an overrepresentation of the surface layers with high fiber orientation and divergent morphology. In order to characterize the distribution and agglomeration of fibers and particles for the manufacturing of micro injection molding parts of functionalized polymer compounds, it is essential to manufacture the test specimens and the part using the same process. The distribution and size of these particles e.g. Carbon-Nano-Tubes (CNT) or piezo ceramic particles is dependent on the polymer plastication process during injection molding. Therefore the use of micro test specimens is a requirement for precise material selection and engineering.Due to the minimum material needs, micro test specimens are also useful for the comparison of the material properties of new polymers and compounds, which were produced in amounts of 20 g to 100 g. Another application is the testing of highly elastic and ductile materials with strains over 100%. By using micro test specimens it is possible to test high strains with low elongations in a short time.A new innovative micro test specimen has been developed at the Technische Universität Chemnitz in cooperation with the Kunststoff-Zentrum in Leipzig, that is especially designed for the testing and dimensioning of plastic microparts with weights less than 0.1 g. The main feature of the new specimen and testing process is the combined positive and force-fitted locking, which enables a precise positioning of the micro specimen and an even application of the clamping force. In order to achieve reproducible clamping, testing and handling of the sample, the clamping and testing process are spatially separated. The shape of the test specimen enables a parameter optimization for the micro injection molding process.

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23

Xu, Yan, Kai Leung Yung, and Hang Liu. "Active Scalable Elastomer Mold to Ease Demolding of High Aspect Ratio Micro Features." Advanced Materials Research 591-593 (November 2012): 880–83. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.880.

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To fabricate high aspect ratio micro/nano features, demolding is more challenging than filling of melt into micro mold as solidified micro features can be easily peeled off when demolding resistance is high. Besides using anti-stick agent, using deformable mold is a new solution proposed by the authors. This paper presents a setup for testing the deformable active mold. Experimental results on micro thermal molding with the developed mold deforming system prove that the new system can successfully demold high aspect ratio micro features that can not be produced with traditional metal mold.

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Jadidi, Majid Fazeli, Zahra Gholamvand, and Graham L. W. Cross. "High-resolution micro-cavity filling sensing by fiber optic interferometry." Review of Scientific Instruments 94, no. 1 (January 1, 2023): 015001. http://dx.doi.org/10.1063/5.0109751.

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In the last decade, new potential applications of micro- and nano-products in telecommunication, medical diagnostics, photovoltaic, and optoelectronic systems have increased the interest to develop micro-engineering technologies. Injection molding of polymeric materials is a recent method being adapted for serial manufacturing of optic components and packaging at the micro- and nano-scale. Quality assurance of replication into small cavities is an important but underdeveloped factor that is needed to ensure high production efficiency in any micro-fabrication industry. In this work, we introduce a fiber-based interferometric measurement sensor to monitor the cavity filling of optical microstructures fabricated into a macroscopic molding die. The interferometer was capable of resolving melt front motion into the microcavity to the point of complete filling as verified by atomic force microscopy. Despite the low reflectivity of the transparent polymer and unoptimized reflected light collection optics, this system is capable of monitoring polymer movement during the course of filling and detecting the completion of the process. The simplicity and flexibility of the technology could allow eventual instrumentation of injection molds, embossing, and nanoimprint tooling suitably modified with a small optical window to accommodate light from an optical fiber. This would provide a solution to the challenging problem of monitoring local, nanometer scale filling processes.

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FUDOUZI, Hiroshi, and Yoshio SAKKA. "Micro gas sensor assembly of tin oxide nano-particles by a capillary micro-molding process." Journal of the Ceramic Society of Japan 118, no. 1375 (2010): 202–5. http://dx.doi.org/10.2109/jcersj2.118.202.

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Pervikov, Alexander, Nikita Toropkov, Sergey Kazantsev, Olga V. Bakina, Elena Glazkova, and Marat Lerner. "Preparation of Nano/Micro Bimodal Aluminum Powder by Electrical Explosion of Wires." Materials 14, no. 21 (November 2, 2021): 6602. http://dx.doi.org/10.3390/ma14216602.

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Electrical explosion of aluminum wires has been shown to be a versatile method for the preparation of bimodal nano/micro powders. The energy input into the wire has been found to determine the relative content of fine and coarse particles in bimodal aluminum powders. The use of aluminum bimodal powders has been shown to be promising for the development of high flowability feedstocks for metal injection molding and material extrusion additive manufacturing.

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Gao, Peng, Ian MacKay, Andrea Gruber, Joshua Krantz, Leonardo Piccolo, Giovanni Lucchetta, Riccardo Pelaccia, Leonardo Orazi, and Davide Masato. "Wetting Characteristics of Laser-Ablated Hierarchical Textures Replicated by Micro Injection Molding." Micromachines 14, no. 4 (April 16, 2023): 863. http://dx.doi.org/10.3390/mi14040863.

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Texturing can be used to functionalize the surface of plastic parts and, in particular, to modify the interaction with fluids. Wetting functionalization can be used for microfluidics, medical devices, scaffolds, and more. In this research, hierarchical textures were generated on steel mold inserts using femtosecond laser ablation to transfer on plastic parts surface via injection molding. Different textures were designed to study the effects of various hierarchical geometries on the wetting behavior. The textures are designed to create wetting functionalization while avoiding high aspect ratio features, which are complex to replicate and difficult to manufacture at scale. Nano-scale ripples were generated over the micro-scale texture by creating laser-induced periodic surface structures. The textured molds were then replicated by micro-injection molding using polypropylene and poly(methyl methacrylate). The static wetting behavior was investigated on steel inserts and molded parts and compared to the theoretical values obtained from the Cassie–Baxter and Wenzel models. The experimental results showed correlations between texture design, injection molding replication, and wetting properties. The wetting behavior on the polypropylene parts followed the Cassie–Baxter model, while for PMMA, a composite wetting state of Cassie–Baxter and Wenzel was observed.

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Piotter, Volker, Klaus Plewa, Tobias Mueller, Andreas Ruh, Elvira Vorster, Hans Joachim Ritzhaupt-Kleissl, and Juergen Hausselt. "Manufacturing of High-Grade Micro Components by Powder Injection Molding." Key Engineering Materials 447-448 (September 2010): 351–55. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.351.

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Powder injection molding (MicroPIM) has a considerable potential for the production of high-value metal and ceramic micro components. This does not only apply to technical aspects but, due to the deployability of mass production, also to economic ones. The current status can be summed up by the following key data: latest trials revealed smallest struc-tural details in the 10µm range or lower. Theoretical densities of up to 99% were achieved depend-ing on the particular powder applied. Typical materials processed are metals (Fe, Cu, 316L, 17-4PH, W and W-alloys etc.) or ceramics (aluminum/zirconium oxide etc.). Best surface qualities were obtained with ultrafine or even nano-doped ceramic powders. Another major line of development is multi-component or assembly injection molding. These proc-esses do not only reduce assembly expenditure, but also allow for the use of new functional material combinations. Interesting examples are ceramic micro heating elements or gear wheel/shaft samples which can be performed as fixed or movable combinations. Micro inmold-labelling using PIM feed-stocks offers further promising opportunities.

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Brock, Larry, and Jian Sheng. "Robust Fabrication of Polymeric Nanowire with Anodic Aluminum Oxide Templates." Micromachines 11, no. 1 (December 30, 2019): 46. http://dx.doi.org/10.3390/mi11010046.

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Functionalization of a surface with biomimetic nano-/micro-scale roughness (wires) has attracted significant interests in surface science and engineering as well as has inspired many real-world applications including anti-fouling and superhydrophobic surfaces. Although methods relying on lithography include soft-lithography greatly increase our abilities in structuring hard surfaces with engineered nano-/micro-topologies mimicking real-world counterparts, such as lotus leaves, rose petals, and gecko toe pads, scalable tools enabling us to pattern polymeric substrates with the same structures are largely absent in literature. Here we present a robust and simple technique combining anodic aluminum oxide (AAO) templating and vacuum-assisted molding to fabricate nanowires over polymeric substrates. We have demonstrated the efficacy and robustness of the technique by successfully fabricating nanowires with large aspect ratios (>25) using several common soft materials including both cross-linking polymers and thermal plastics. Furthermore, a model is also developed to determine the length and molding time based on nanowires material properties (e.g., viscosity and interfacial tension) and operational parameters (e.g., pressure, vacuum, and AAO template dimension). Applying the technique, we have further demonstrated the confinement effects on polymeric crosslinking processes and shown substantial lengthening of the curing time.

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Wu, Binrui, Chaoyi Peng, Ying Hu, Suli Xing, Dazhi Jiang, Jinshui Yang, Jiajie Lyu, and Yonglyu He. "Molding processed multi-layered and multi-functional nanocomposites with high structural ability, electrical conductivity and durable superhydrophobicity." Nanoscale 10, no. 42 (2018): 19916–26. http://dx.doi.org/10.1039/c8nr04317e.

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Bioinspired superhydrophobic surfaces mainly attributed to the nano/micro textures and low surface energy materials, have exciting potential usage in fields such as self-cleaning, water-proofing and so forth.

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Gu, Dapeng, Shouyao Liu, Gaifen Lu, Shuaibing Wang, Zibo Wang, Xiaofan Chen, Suwen Chen, Bingchao Yang, and Deng Pan. "Tribological performances of micro/nano-Si3N4–PTFE–EP composites prepared by high-pressure compression molding." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 235, no. 5 (January 12, 2021): 991–1003. http://dx.doi.org/10.1177/1464420720985171.

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It is of great significance to improve the tribological performances of self-lubricating system to reduce the exfoliation of abrasive particles. In this work, tribological performances of Si3N4–PTFE–EP self-lubricating composites with surface-modified micro/nano-Si3N4 (20 nm, 100 nm, 500 nm, 1–3 μm, and 10 μm) prepared by high-pressure (3 GPa) compression molding are investigated systematically. The results show that although the surface modification of nano-Si3N4 can improve tribological performances of Si3N4–PTFE–EP composite, Si3N4 particle size is the more critical factor. When Si3N4 particle size is 10 μm, the tribological performances of 70M–Si3N4–30PTFE–EP, 50M–Si3N4–50PTFE–EP, and 30M–Si3N4–70PTFE–EP composites are optimal.

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Lin, Huang-Ya, Ching-Ho Chang, and Wen-Bin Young. "Experimental and analytical study on filling of nano structures in micro injection molding." International Communications in Heat and Mass Transfer 37, no. 10 (December 2010): 1477–86. http://dx.doi.org/10.1016/j.icheatmasstransfer.2010.08.017.

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Choi, Joon-Phil, Jin-Soo Park, Eui-Jin Hong, Won-Sik Lee, and Jai-Sung Lee. "Analysis of the rheological behavior of Fe trimodal micro-nano powder feedstock in micro powder injection molding." Powder Technology 319 (September 2017): 253–60. http://dx.doi.org/10.1016/j.powtec.2017.06.056.

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Zhang, N., J. S. Chu, C. J. Byrne, D. J. Browne, and M. D. Gilchrist. "Replication of micro/nano-scale features by micro injection molding with a bulk metallic glass mold insert." Journal of Micromechanics and Microengineering 22, no. 6 (May 17, 2012): 065019. http://dx.doi.org/10.1088/0960-1317/22/6/065019.

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Buntin, Artem E. "Ceramics Based on Nano-Modified Alumino-Silicates." Solid State Phenomena 316 (April 2021): 87–93. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.87.

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The paper considers the formulation of nanomodification of alumino-silicate raw materials, in order to obtain ceramic materials, based on it, by various molding methods with an increased strength and other operational properties. Studies of the dependence of the compressive strength on the type and concentration of aluminum and silicon oxide nanoparticles, their influence on the granulo-metric composition and microstructure of alumino-silicate powders, based on alkaline earth bentonite, are presented. It is shown that the addition of oxide nanoparticles in small concentrations leads to a decrease in the average particle size, aggregated structural elements of bentonite and their redistribution, and changes in morphological parameters (the shape of micro-aggregates and aggregates, pores), which increases the strength of raw materials and, as a result, burnt products.

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Lou, Bai Yang, Qiong Tong Ma, Shui Long Kong, Bin Xu, and Fang Liang Dong. "Study on Temperature Sensibility of Nano-Copper/Paraffin Materials." Advanced Materials Research 502 (April 2012): 91–95. http://dx.doi.org/10.4028/www.scientific.net/amr.502.91.

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In this paper, nano-copper/paraffin thermosensitive composite materials were prepared by high-energy ball milling, and pressed into the glass cylindrical tube by hot press molding. The micro-morphology and particle shape and microstructure of composite particles were observed by SEM, FI-IR, etc, the temperature sensibility of thermosensitive composite materials were tested by self-manufactured thermosensitive testing device. It shows that the way by which high-energy ball milling are prepared, the composite particle coated with good results, dense arrangement of particles, copper particles on the paraffin structure does not produce damage. With copper mass ratio increasing, the thermal conductivity of temperature sensitive composite is improved.

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Choi, Joon-Phil, Hyun-Gon Lyu, Won-Sik Lee, and Jai-Sung Lee. "Investigation of the rheological behavior of 316L stainless steel micro-nano powder feedstock for micro powder injection molding." Powder Technology 261 (July 2014): 201–9. http://dx.doi.org/10.1016/j.powtec.2014.04.047.

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38

Chen, Ke, W. J. Meng, Fanghua Mei, J. Hiller, and D. J. Miller. "From micro- to nano-scale molding of metals: Size effect during molding of single crystal Al with rectangular strip punches." Acta Materialia 59, no. 3 (February 2011): 1112–20. http://dx.doi.org/10.1016/j.actamat.2010.10.044.

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Surace, Rossella, Claudia Pagano, Vincenzo Bellantone, Simone Gatti, Leonardo Castellani, Massimo Vighi, Grégory Stoclet, Sara Sechi, Irene Fassi, and Francesco Baldi. "Injection vs micro-injection molding of nano-particle filled polyamide 6: Moldability and structuring." Polymer 230 (September 2021): 124035. http://dx.doi.org/10.1016/j.polymer.2021.124035.

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Oh, Joo Won, Won Sik Lee, and Seong Jin Park. "Investigation and modeling of binder removal process in nano/micro bimodal powder injection molding." International Journal of Advanced Manufacturing Technology 97, no. 9-12 (June 7, 2018): 4115–26. http://dx.doi.org/10.1007/s00170-018-2263-8.

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Ye, Xiangdong, Yugang Duan, and Yucheng Ding. "Research on the Forming Mechanism of Micro/Nano Features during the Cast Molding Process." Nano-Micro Letters 3, no. 4 (December 2011): 249–55. http://dx.doi.org/10.1007/bf03353680.

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Mehner, Andreas, Ju An Dong, Timo Hoja, Torsten Prenzel, Yildirim Mutlugünes, Ekkard Brinksmeier, Don Lucca, and Fritz Klaiber. "Diamond Machinable Sol-Gel Silica Based Hybrid Coatings for High Precision Optical Molds." Key Engineering Materials 438 (May 2010): 65–72. http://dx.doi.org/10.4028/www.scientific.net/kem.438.65.

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The demand for high precision optical elements as micro lens arrays for displays increases continually. Economic mass production of such optical elements is done by replication with high precision optical molds. A new approach for manufacturing such molds was realized by diamond machinable and wear resistant sol-gel coatings. Crack free silica based hybrid coatings from base catalyzed sols from tetraethylorthosilicate (TEOS: Si(OC2H5)4) and methyltriethoxysilane (MTES: Si(CH3)(OC2H5)3) precursors were deposited onto pre-machined steel molds by spin coating process followed by a heat treatment at temperatures up to 800°C. Crack-free multilayer coatings with a total thickness of up to 18 µm were achieved. Micro-machining of these coatings was accomplished by high precision fly cutting with diamond tools. Molds with micro-structured coatings were successfully tested for injection molding of PMMA optical components. The wear resistance of the coatings was successfully tested by injection molding of 1000 PMMA lenses. Hardness and elastic modulus of the coatings were measured by nano indentation. The chemical composition was measured by X-ray photo electron spectroscopy (XPS) as a function of the sol-gel processing parameters.

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Belyakov, A. V. "High-density Micro- and Nano-Grain Size Ceramics. Transition from Open into Closed Pores. Part 1. Powder Preparation, Molding Mixture, Molding." Refractories and Industrial Ceramics 60, no. 6 (March 2020): 574–81. http://dx.doi.org/10.1007/s11148-020-00409-z.

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Yang, Wei Min. "A Concept of Differential-Integral Method Applied in Polymer Processing and Molding." Key Engineering Materials 501 (January 2012): 1–9. http://dx.doi.org/10.4028/www.scientific.net/kem.501.1.

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In order to solve the bottleneck problem of polymer product processing striving for micro scale and precision or macro scale and complication in modern manufacturing, a concept of differential and integral method applied in advanced manufacture of polymer materials is brought up. On the base of this concept, principles of injection molding, extrusion, electrostatic spinning, nano-composite processing and structure innovation of polymer products have been studied; a series of new methods of polymer processing and molding, new equipments, and new technologies of product application have been invented. Some industrial application results prove that, the concept of differential and integral method applied in advanced manufacture of polymer materials is a valuable guide to break through the restriction of traditional manufacturing mode, and to develop new method of polymer processing and new technologies of polymer products application.

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Huang, Chen-Yu, Mei-Feng Lai, Wen-Lin Liu, and Zung-Hang Wei. "Anisotropic Wettability of Biomimetic Micro/Nano Dual-Scale Inclined Cones Fabricated by Ferrofluid-Molding Method." Advanced Functional Materials 25, no. 18 (March 25, 2015): 2670–76. http://dx.doi.org/10.1002/adfm.201500359.

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Ortega, Zaida, Mark McCourt, Francisco Romero, Luis Suárez, and Eoin Cunningham. "Recent Developments in Inorganic Composites in Rotational Molding." Polymers 14, no. 23 (December 2, 2022): 5260. http://dx.doi.org/10.3390/polym14235260.

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Rotational molding allows for obtaining hollow parts with good aesthetics and properties, having as main drawbacks the lack of pressure and the long cycle times, which limit the range of materials. Different fillers have been introduced in rotomolding to obtain composite materials assessed. This review has shown that glass fibers or particles are the most common material among them, although carbon fibers or clays have also been studied. In general terms, 10% loadings provide an increase in mechanical properties; higher loadings usually lead to a decrease in processability or final properties. When the filler consists of a micro- or nano-material, such as clay or graphene, lower loadings are proposed, generally not exceeding 3%. The use of fillers of an inorganic nature to obtain composites has not been as explored as the incorporation of lignocellulosic materials and even less if referring to waste materials or side streams from industrial processes. So, there is a broad field for assessing the processing and properties of rotomolded composites containing inorganic waste materials, including the study of the relationship between the ratio of filler/reinforcement and the final properties and also their preprocessing (dry blending vs. melting compounding).

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Kim, Youngmin, Yong Choi, Young-Joo Kim, and Shinill Kang. "Construction of Injection Mold with MEMS RTD Sensor and MEMS Heater for Micro/Nano Molding Process." Japanese Journal of Applied Physics 44, no. 5B (May 24, 2005): 3591–95. http://dx.doi.org/10.1143/jjap.44.3591.

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Zhou, Mingyong, Bingyan Jiang, Can Weng, and Lu Zhang. "Experimental study on the replication quality of micro–nano cross-shaped structure arrays in injection molding." Microsystem Technologies 23, no. 4 (January 18, 2016): 983–89. http://dx.doi.org/10.1007/s00542-016-2819-1.

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Browne, David J., Dermot Stratton, Michael D. Gilchrist, and Cormac J. Byrne. "Bulk Metallic Glass Multiscale Tooling for Molding of Polymers with Micro to Nano Features: A Review." Metallurgical and Materials Transactions A 44, no. 5 (September 27, 2012): 2021–30. http://dx.doi.org/10.1007/s11661-012-1427-7.

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Lee, Su-Han, Hye Bin Park, Sang-Keun Sung, Ju Kyung Lee, and Hyung Jin Kim. "A polymer-based artificial microenvironment for enhancing cell adhesion." Organoid 3 (February 25, 2023): e8. http://dx.doi.org/10.51335/organoid.2023.3.e8.

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An efficient platform capable of cell adhesion needs to be developed to understand cell activities such as cell differentiation, diffusion, and migration. The basic sequence of cell adhesion involves cells communicating with their environment by generating mechanical and chemical signals. Thin polymeric films with micro- or nano-patterns are widely used to support cell growth with conformal contact at the biointerface. However, stable and biocompatible films with high reproducibility on a flexible substrate remain a challenge. As described here, we developed micro-pattern poly(tetrafluoroethyleneco-perfluoro-3,6-dioxa-4-methyl-7-octenesulfonic acid) (Nafion) films fabricated by a molding process. We present the fabrication and characterization of flexible, micro-patterned Nafion films and the evaluation of cell adhesion and alignment on these films. We found that cell adhesion and migration/direction could be modulated by controlling the surface architecture. This approach offers a new platform that constitutes a promising tool for use in flexible cell-based platforms and devices to observe cell-cell and cell-surface interactions.

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Journal articles on the topic 'Micro/ Nano Molding'

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