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Journal articles on the topic 'Ultra-fast grinding'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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1

Xie, Di, Hui Chen, Siyi Yin, Feisen Wang, Jingwen Chen, and Sifei Ai. "Effect of different laser energy densities on the corrosion resistance of aluminum alloys." Anti-Corrosion Methods and Materials 67, no. 5 (2020): 437–44. http://dx.doi.org/10.1108/acmm-02-2020-2263.

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Purpose Laser cleaning, as a new type of cleaning technology, has the advantages of environment-friendliness, better selectivity, better controllability and higher efficiency compared to traditional chemical cleaning or grinding. This paper aims to use ultra-fast surface laser cleaning equipment built in laboratory to study the influence of different energy density (7.6, 11.5 and 15.3 J/cm2) on corrosion resistance of the aluminum alloy A7N01P-T4, a high-speed train body material. Design/methodology/approach SEM, white light interferometer, EDS and XPS were used to analyze the surface morpholo
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2

Shu, Xia Yun, and Hong Hai Zhang. "Design and Experimental Investigation on High Efficient Horizontal Micro Electrical Discharge Machine." Applied Mechanics and Materials 456 (October 2013): 32–37. http://dx.doi.org/10.4028/www.scientific.net/amm.456.32.

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Micro-electrical discharge machining is a non-contact manufacturing process without macroscopic force. Microelectrode fabrication is the fundamental and influence factor of micro electric discharge machining. As for the efficiency of microelectrode fabrication, this paper proposed a fast online microelectrode fabrication method by an efficient horizontal micro electric discharge machine, in which an online diamond wheel ultra-precision grinding method and an online wire electrical discharge grinding method is combined to fabricate microelectrode. Machine designed in this paper consist of a CCD
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3

Kim, J.-D., and S.-R. Nam. "Development of a Micro-Positioning Grinding Table Using Piezoelectric Voltage Feedback." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 209, no. 6 (1995): 469–74. http://dx.doi.org/10.1243/pime_proc_1995_209_110_02.

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Micro-positioning systems using piezoelectric actuators have a very wide range of applications including ultra-precision machine tools, optical devices and measurement systems. In order to ensure a high-precision displacement resolution, they use a position sensor and error feedback. From a practical point of view, a high-resolution displacement sensor system is very expensive and it is difficult to guarantee that such sensitive sensors work properly in the harsh operating environments of industry. In this paper, a micro-positioning grinding table has been developed which does not require a po
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4

Tlebaev, K. B. "MODIFICATION OF POLYTETRAFLUOROETHYLENE ON THE BASE OF ULTRAFINE POWDER." Eurasian Physical Technical Journal 18, no. 3 (37) (2021): 25–29. http://dx.doi.org/10.31489/2021no3/25-29.

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This paper presents the results of a study of the influence of thermal and mechanical effects on the formation of a structure in an ultrafine powder heated to a temperature above the melting point of polytetrafluoroethylene (327°C). The ultrafine powder was obtained by mechanical grinding of an industrial sample of polytetrafluoroethylene in a rotary knife mill. Studies of the ultra powder with a transmission microscope showed that the powder particles are quasi-spherical particles of a size of 5 microns. The thermal (sintering, slow and fast quenching) and mechanical (creation of high pressur
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5

Rizvi, S. A., and T. I. Khan. "A Novel Fabrication Method for Nitinol Shape Memory Alloys." Key Engineering Materials 442 (June 2010): 309–15. http://dx.doi.org/10.4028/www.scientific.net/kem.442.309.

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Nitinol (NiTi) shape memory alloys are widely used in a variety of biomedical applications, such as dental implants, cervical and lumbar vertebral replacements, joint replacements and stents. In this study, commercially pure Ti and Ni foils ~100 um thick were diffusion bonded in vacuum. The experimental conditions were optimized to achieve a near equiatomic composition to produce NiTi SMA thin foil of approx. 5-8 micron thick. The cross-sectional surfaces of joint were subjected to metallographic investigation using optical microscope after grinding, polishing and etching. Scanning electron mi
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6

Schade, Tim, and Bernhard Middendorf. "Use of Design of Experiments (DoE) to Model the Sulphate Agent Amount of (Ultra)Finely Ground and Fast Hardening Portland Cement Clinker." Materials 14, no. 19 (2021): 5573. http://dx.doi.org/10.3390/ma14195573.

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This paper presents a model to calculate the sulphate agent amount and sulphate agent ratio for fine grounded and fast hardening Portland cement clinker. Despite sufficient knowledge about the influence of calcium sulphate on the hydration process of cement, the sulphate agent amount is mostly adjusted empirically. As a result, often a wide and unfeasible experimental matrix has to be tested. In this work, Design of Experiments (DoE) was used in combination with in-situ X-ray diffraction (XRD) tests to accurately adjust the sulphate agent of different finely ground cement by calculation. With
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7

Rahman, Mustafizur, A. B. M. A. Asad, T. Masaki, Yoke San Wong, and A. Senthil Kumar. "Compound Micro/Nano Machining – A Tool-Based Innovative and Integrated Approach." Key Engineering Materials 447-448 (September 2010): 9–15. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.9.

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Compound micro-machining is the most promising technology for the production of miniaturized parts and this technology is becoming more and more important and popular because of growing demand for industrial products with not only increased number of functions but also of reduced dimensions, higher dimensional accuracy and better surface finish. In this paper, the development efforts in micro/nano-machining based on solid tools (tool-based micro/nano-machining) in NUS are introduced. In order to achieve meaningful implementation of micro-machining techniques, this research seeks to address fou
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8

Uskenbaev, Daniyar, Adolf Nogai, Alisher Uskenbayev, et al. "Synthesis and Research of Critical Parameters of Bi-HTSC Ceramics Based on Glass Phase Obtained by IR Heating." ChemEngineering 7, no. 5 (2023): 95. http://dx.doi.org/10.3390/chemengineering7050095.

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In this paper influence of the excess Ca and Cu cations on the critical temperature (Tc) and critical transport current density (Jc) of high-temperature superconducting ceramics of the compositions (HTSC) Bi1.6Pb0.4Sr2Ca2.1Cu3.1Oy, Bi1.6Pb0.4Sr2Ca2.25Cu3.25Oy and Bi1.6Pb0.4Sr2Ca3Cu4Oy synthesized by the glass-ceramic method has been studied. The synthesis of superconducting ceramics was carried out on the basis of the glass phase, obtained by ultra-fast quenching of the melt. Melting of the mixture of starting components was carried out without the use of a crucible under the influence of IR r
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9

Eremeeva, J. V., O. V. Myakisheva, V. S. Panov, et al. "SPECIFIC FEATURES OF SPS-SINTERING OF BORON CARBIDE POWDERS PRODUCED BY DIFFERENT METHODS." Proceedings of the Southwest State University 21, no. 3 (2017): 41–58. http://dx.doi.org/10.21869/2223-1560-2017-21-3-41-58.

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Mechanochemical and SHS methods are up-and-coming ways to produce finely dispersed boron carbide nano powder. With optimal process conditions the synthesized phases have ultra dispersed state with well-developed surfaces of the boundaries of grains and subgrains that have either a nano or microcrystalline structure, and that ensures its higher density after vibrocompaction treatment, which in its turn can result in a reduced burn-out rate and a slow-down absorption activity under the influence of neutron irradiation. The products of mechanochemical synthesis and SHS have specified composition
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10

Champagne, Tim, Jay Chao, Kazuyasu Tanaka, Ramachandran Trichur, and Rong Zhang. "Ultra-low Warpage and Anhydride-free Liquid Compression Molding Materials for Advanced Semiconductor Packaging." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2019, DPC (2019): 000408–28. http://dx.doi.org/10.4071/2380-4491-2019-dpc-presentation_tp2_016.

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Advanced semiconductor packaging landscape is rapidly evolving to accommodate requirements of front end node shrink and performance expectations from emerging applications in big data, artificial intelligence, mobile and autonomous driving. Multiple innovations in packaging process technology as well as processing materials enable the progress in advanced packaging. Several wafer level packaging (WLP) platforms have emerged recently using fan-in, fan-out, 2.5D and 3D packaging processes to satisfy the requirements of increased functionality, reduced form factor, lower power consumption, and hi
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11

Mu, Yuhe, Wei He, and Yue Zhou. "Achieving High Pseudocapacitance Anode SnP2O7@C By an in Situ Self-Nanocrystallization Method for Ultrastable Sodium Storage." ECS Meeting Abstracts MA2023-01, no. 7 (2023): 2837. http://dx.doi.org/10.1149/ma2023-0172837mtgabs.

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Title: High Pseudocapacitance Anode SnP2O7@C by In Situ Self-Nanocrystallization Method for Ultrastable Sodium Storage The rich resource and cheap price of Na have attracted attention in energy storage research and the market, becoming an optional choice for Li-ion batteries. The large radius of sodium-ion leads to a high diffusion barrier that restricted the development of sodium-ion batteries. Therefore, anodes with high capacity and stable cyclability are urgently addressed before further utilization. The mechanism of sodium-ion batteries can be classified into three categories: intercalati
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12

Peng, Shuai, Jiawen Xu, Dongya Li, et al. "Ultra-fast 3D Printing of Assembly – free Complex Optics with Sub-nanometer Surface Quality at Mesoscale." International Journal of Extreme Manufacturing, June 2, 2023. http://dx.doi.org/10.1088/2631-7990/acdb0d.

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Abstract Optical lenses with high design freedom and different spatial orientations are highly attractive in laser processing, machine vision, optical communication, etc. Traditional optical lens processing is achieved by precision machining or injection moulding in combination with post grinding or polishing, which is expensive and highly complex and has little freedom to produce spatially distributed optic structures. The emerging additive manufacturing has exhibited significant advantages in printing multi-material, multi-scale, and multi-functional optical devices. Yet, the challenges of l
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13

Fan, Yanchen, Meng Xu, Qi Li, et al. "Carboxyl‐CNTs Act as “Defensive Shield” to Boost Proton Insertion for Stable and Fast‐Charging Aqueous Zn‐Mn Batteries." Small, March 13, 2025. https://doi.org/10.1002/smll.202501454.

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AbstractProton insertion mechanism with fast reaction kinetics is attracting more and more attention for high‐rate and durable aqueous Zn─MnO2 batteries. However, hydrated Zn2+ insertion reaction accompanied with Jahn–Teller effect and Mn3+ disproportionation generally leads to sluggish rate capability and irreversible structure transformation. Here, carboxyl‐carbon nanotubes supported α‐MnO2 nanoarrays (C─MnO2) cathode is successfully fabricated by a convent grinding process for high‐performance Zn batteries. Specifically, the carboxyl‐carbon nanotubes (CNTs) skeleton endows α‐MnO2 with a sho
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14

Pattanayak, Pradip, Niladri Modak, Shyamal Guchhait, Nirmalya Ghosh, and Pradipta Purkayastha. "Ultrasensitive Piezochromic Molecular Crystals: Mechanical Pressure‐Induced Controlled Regulation of TADF and RTP." Advanced Optical Materials, May 10, 2024. http://dx.doi.org/10.1002/adom.202400404.

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AbstractConsidering that regulation of thermally activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) is necessary for a fluorophore to survive and properly show its characteristic features, it is successfully shown herein that a carefully designed novel pyrene derivative can exhibit remarkable aggregation‐induced emission (AIE) overcoming the characteristic fast excitonic decay of pyrene compounds. Moreover, it is established that J‐aggregation in the red‐emitting molecular crystals of the compound reduces the singlet‐triplet energy gap (∆EST), allowing TADF with a
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15

Roussey, Matthieu. "Sorting microplastics from other materials in water samples by ultra-high-definition imaging." Journal of the European Optical Society-Rapid Publications, March 15, 2023. http://dx.doi.org/10.1051/jeos/2023010.

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In this study a commercial particle analyzer was used to image and help sorting microplastic particles (MPs) dispersed in filtrated and de-aerated tap water. The device provides a relatively easy and fast procedure for obtaining ultra-high-definition imaging, allowing the determination of shape, size, and number of 2D-projections of solid particles. The image analysis revealed clear differences among the studied different MPs originating from the grinding of five common grades of plastic sheets as they affect the image rendering differently, principally due to the light scattering either at th
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16

Kai-Erik, Peiponen, Kanyathare Boniphace, Hrovat Blaž, et al. "Sorting microplastics from other materials in water samples by ultra-high-definition imaging." April 10, 2023. https://doi.org/10.1051/jeos/2023010.

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In this study a commercial particle analyzer was used to image and help sorting microplastic particles (MPs) dispersed in filtrated and de-aerated tap water. The device provides a relatively easy and fast procedure for obtaining ultra-high-definition imaging, allowing the determination of shape, size, and number of 2D-projections of solid particles. The image analysis revealed clear differences among the studied different MPs originating from the grinding of five common grades of plastic sheets as they affect the image rendering differently, principally due to the light scattering either at th
APA, Harvard, Vancouver, ISO, and other styles
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