Micromachines最新文献

Compact Frequency-Agile and Mode-Reconfigurable Antenna for C-Band, Sub-6-GHz-5G, and ISM Applications. 用于c波段、sub - 6ghz - 5g和ISM应用的紧凑型频率敏捷和模式可重构天线。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-19 DOI: 10.3390/mi16060724

Esraa Mousa Ali, Wahaj Abbas Awan, Anees Abbas, Syed Mujahid Abbas, Heba G Mohamed

{"title":"Compact Frequency-Agile and Mode-Reconfigurable Antenna for C-Band, Sub-6-GHz-5G, and ISM Applications.","authors":"Esraa Mousa Ali, Wahaj Abbas Awan, Anees Abbas, Syed Mujahid Abbas, Heba G Mohamed","doi":"10.3390/mi16060724","DOIUrl":"10.3390/mi16060724","url":null,"abstract":"This article presents the design and evaluation of a compact-sized antenna targeting heterogenous applications working in the C-band, 5G-sub-6GHz, and the ISM band. The antenna offers frequency reconfigurability along with multi-operational modes ranging from wideband to dual-band and tri-band. A compact-sized antenna is designed initially to cover a broad bandwidth that ranges from 4 GHz to 7 GHz. Afterwards, various multiband antennas are formed by loading various stubs. Finally, the wideband antenna along with multi-stub loaded antennas are combined to form a single antenna. Furthermore, PIN diodes are loaded between the main radiator and stubs to activate the stubs on demand, which consequently generates various operational modes. The last stage of the design is optimization, which helps in achieving the desired bandwidths. The optimized antenna works in the wideband mode covering the C-band, Wi-Fi 6E, and the ISM band. Meanwhile, the multiband modes offer the additional coverage of the LTE, LTE 4G, ISM lower band, and GSM band. The various performance parameters are studied and compared with measured results to show the performance stability of the proposed reconfigurable antenna. In addition, an in-depth literature review along with comparison with proposed antenna is performed to show its potential for targeted applications. The utilization of FR4 as a substrate of the antenna along with its compact size of 15 mm × 20 mm while having multiband and multi-mode frequency reconfigurability makes it a strong candidate for present as well as for future smart devices and electronics.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195069/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated Electrochemical and Computational Elucidation of Nitro Blue Tetrazolium Chloride as an Efficient Leveler for Copper Microvia Superfilling. 硝基蓝氯化四氮唑作为微孔补铜高效匀平剂的综合电化学和计算解析。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-19 DOI: 10.3390/mi16060721

Dong Xing, Xiangfu Wei, Jinge Ye, Mingsong Lin, Shengchang Tang, Hui You

{"title":"Integrated Electrochemical and Computational Elucidation of Nitro Blue Tetrazolium Chloride as an Efficient Leveler for Copper Microvia Superfilling.","authors":"Dong Xing, Xiangfu Wei, Jinge Ye, Mingsong Lin, Shengchang Tang, Hui You","doi":"10.3390/mi16060721","DOIUrl":"10.3390/mi16060721","url":null,"abstract":"Levelers are indispensable additives for achieving void-free, bottom-up superconformal copper filling of microvias. Establishing the molecular-level correlation between leveler structure and performance is therefore essential to the continued advancement of microelectronic copper-plating technology. Herein, nitro blue tetrazolium chloride (NBT) is identified as an efficient leveler for copper microvia superfilling. A multiscale strategy-combining electrochemical measurements, X-ray photoelectron spectroscopy (XPS), density functional theory (DFT) calculations, and molecular dynamics (MD) simulations-is employed to elucidate the action mechanism of NBT and pinpoint its electroactive sites. Electrochemical tests show that NBT markedly suppresses copper deposition and, together with polyethylene glycol (PEG), effectively resists competitive adsorption by bis-(3-sulfopropyl) disulfide (SPS), thereby enhancing the microvia superfilling performance of the PEG-SPS-NBT additive system. DFT results reveal that the nitro groups and tetrazolium rings constitute the primary adsorption centers on the copper surface; the nitro groups additionally strengthen intermolecular interactions between NBT and PEG. MD simulations further confirm that NBT anchors onto the Cu(111) surface predominantly through these NO2 groups and the tetrazolium ring, while co-adsorbed PEG enhances the overall adsorption strength of NBT. The electroplating experiment demonstrates that NBT can act as an effective leveler for microvia superfilling. Moreover, XPS analyses further confirm the synergistic co-adsorption of NBT and PEG and verify that the NO2 groups and tetrazolium rings are the dominant adsorption sites of NBT. Collectively, the electroplating, XPS, electrochemical, DFT, and MD findings clarify the structure-activity relationship of NBT and provide rational guidelines for designing next-generation copper-plating levelers.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195018/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Miniaturized Dual and Quad Port MIMO Antenna Variants Featuring Elevated Diversity Performance for UWB and 5G-Midband Applications. 小型化的双端口和四端口MIMO天线变体，具有提高UWB和5g中频应用的分集性能。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-17 DOI: 10.3390/mi16060716

Karthikeyan Ramanathan, Srivatsun Gopalakrishnan, Thrisha Chandrakanthan

{"title":"Miniaturized Dual and Quad Port MIMO Antenna Variants Featuring Elevated Diversity Performance for UWB and 5G-Midband Applications.","authors":"Karthikeyan Ramanathan, Srivatsun Gopalakrishnan, Thrisha Chandrakanthan","doi":"10.3390/mi16060716","DOIUrl":"10.3390/mi16060716","url":null,"abstract":"The growing demand for high-speed and high-capacity wireless communication has intensified the need for compact, wideband, and efficient MIMO antenna systems, particularly for 5G mid-band and UWB applications. This article presents a miniaturized dual and quad port MIMO antenna design optimized for 5G mid-band (n77/n78/n79/n96/n102) and Ultra-Wideband (UWB) applications without employing any decoupling structures between the radiating elements. The 2-port configuration features two closely spaced symmetric monopole elements (spacing < λmax/2), promoting efficient use of space without degrading performance. An FR4 substrate (εr = 4.4) is used for fabrication with a compact size of 30 × 41 × 1.6 mm3. This layout is extended orthogonally and symmetrically to form a compact quad-port variant with dimensions of 60 × 41 × 1.6 mm3. Both designs offer a broad operational bandwidth from 2.6 GHz to 10.8 GHz (8.2 GHz), retaining return loss (SXX) below -10 dB and strong isolation (SXY < -20 dB at high frequencies, <-15 dB at low frequencies). The proposed MIMO antennas demonstrate strong performance and excellent diversity characteristics. The two-port antenna achieves an average envelope correlation coefficient (ECC) of 0.00204, diversity gain (DG) of 9.98 dB, and a mean effective gain difference (MEGij) of 0.3 dB, with a total active reflection coefficient (TARC) below -10 dB and signal delay variation under 0.25 ns, ensuring minimal pulse distortion. Similarly, the four-port design reports an average ECC of 0.01432, DG of 9.65 dB, MEGij difference below 0.3 dB, and TARC below -10 dB, confirming robust diversity and MIMO performance across both configurations.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12194843/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical Film with Microstructures to Regulate Viewing Angle of HUDs. 调节hud视角的微结构光学薄膜。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-16 DOI: 10.3390/mi16060714

Qibin Feng, Xiangjun Li, Chunhui Chen, Guoqiang Lv, Zi Wang

{"title":"Optical Film with Microstructures to Regulate Viewing Angle of HUDs.","authors":"Qibin Feng, Xiangjun Li, Chunhui Chen, Guoqiang Lv, Zi Wang","doi":"10.3390/mi16060714","DOIUrl":"10.3390/mi16060714","url":null,"abstract":"Head-up displays (HUDs) can effectively enhance driving safety by projecting information-such as speed and maps-onto the windshield, thereby reducing blind spots caused by drivers looking down. As drivers need to observe road conditions within a wider horizontal viewing field, and considering that the observed angle in a vertical direction is relatively small, it becomes reasonable for an HUD to present a larger horizontal viewing angle than vertical viewing angle. This paper proposes a method to independently regulate the horizontal and vertical viewing angles. The original microstructure morphology is modeled as an ellipsoid, and the curvatures of the ellipsoid's major and minor axes are calculated according to the required viewing angles. The simulation results show that the horizontal viewing angle corresponding to 85% of the maximum luminance increases from 2° without the film to 20° with the film, while the vertical viewing angle increases from 2° to 8°. The optical film with the designed microstructures is prepared and measured. The practical measurement results indicate that the tested horizontal and vertical viewing angles exhibit significant differentiation. At 85% of the maximum luminance, the horizontal viewing angle increases from 2° without the film to 23° with the film, while the vertical viewing angle increases from 2° to 10°. These results meet the requirements for independently regulating horizontal and vertical viewing angles and widening the horizontal viewing angle.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195440/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Roll-to-Roll (R2R) High-Throughput Manufacturing of Foil-Based Microfluidic Chips for Neurite Outgrowth Studies. 用于神经突生长研究的卷对卷（R2R）高通量制造箔基微流控芯片。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-16 DOI: 10.3390/mi16060713

Nihan Atak, Martin Smolka, Anja Haase, Alexandra Lorenz, Silvia Schobesberger, Stephan Ruttloff, Christian Wolf, Ana Ayerdi-Izquierdo, Peter Ertl, Nerea Briz Iceta, Jan Hesse, Martin Frauenlob

{"title":"Roll-to-Roll (R2R) High-Throughput Manufacturing of Foil-Based Microfluidic Chips for Neurite Outgrowth Studies.","authors":"Nihan Atak, Martin Smolka, Anja Haase, Alexandra Lorenz, Silvia Schobesberger, Stephan Ruttloff, Christian Wolf, Ana Ayerdi-Izquierdo, Peter Ertl, Nerea Briz Iceta, Jan Hesse, Martin Frauenlob","doi":"10.3390/mi16060713","DOIUrl":"10.3390/mi16060713","url":null,"abstract":"Microfluidic devices have emerged as a pivotal in vitro technology for axon outgrowth studies, facilitating the separation of the cell body from the neurites by geometric constraints. However, traditional microfabrication techniques fall short in terms of scalability for large-scale production, hindering widespread application. This study presents the development of foil-based cell culture chips, made of polyethylene terephthalate and in-house formulated ultraviolet curable liquid resin by high-throughput roll-to-roll (R2R) manufacturing. Here, two microchannel designs were tested to optimize manufacturing quality and assess the neurite outgrowth behavior. The fabricated neuron-foil chips demonstrated biocompatibility and supported neurite outgrowth within microchannels under static cell culture conditions. Furthermore, fluidic flow, oriented either perpendicular or parallel to the microchannel direction, was applied to enhance the biological reproducibility within the neuron-foil chips. These findings suggest that R2R manufacturing offers a promising approach for the high-throughput production of biocompatible microfluidic devices, advancing their potential application in modeling neurological diseases within the biomedical industry.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrothermally Synthesized PPy/VO₂ Nanorod Composites for High-Performance Aqueous Zinc-Ion Battery Cathodes. 用于高性能锌离子电池阴极的水热合成PPy/VO2纳米棒复合材料。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-13 DOI: 10.3390/mi16060705

Taoyun Zhou, Shilin Li, Dong Xie, Yi Liu, Yun Cheng, Xinyu Li

{"title":"Hydrothermally Synthesized PPy/VO2 Nanorod Composites for High-Performance Aqueous Zinc-Ion Battery Cathodes.","authors":"Taoyun Zhou, Shilin Li, Dong Xie, Yi Liu, Yun Cheng, Xinyu Li","doi":"10.3390/mi16060705","DOIUrl":"10.3390/mi16060705","url":null,"abstract":"The rapid development of energy storage technologies has led to an increasing demand for high-performance electrode materials that can enhance both the energy density and the cycling stability of batteries. In this study, polypyrrole (PPy) nanorods with partial hollow features are utilized as a conductive and flexible framework for the in situ growth of VO2 nanospheres via a simple hydrothermal method, forming a well-defined core-shell PPy/VO2 nanocomposite. This hierarchical nanostructure combines the excellent electrical conductivity and mechanical flexibility of PPy with the high theoretical capacity of VO2, creating a synergistic effect that significantly enhances the electrochemical performance. The well-integrated interface between PPy and VO2 reduces interfacial resistance, promotes efficient electron and ion transport, and improves the overall energy conversion efficiency. Electrochemical testing reveals that the PPy/VO2 nanocomposite delivers a high specific capacity of 413 mAh g-1 at 100 mA g-1 and retains 87.2% of its initial capacity after 1200 cycles, demonstrating exceptional rate capability and long-term cycling stability. This work provides a versatile strategy for designing high-performance cathode materials and highlights the promising potential of PPy/VO2 nanocomposites for next-generation high-energy-density aqueous zinc-ion batteries.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diffusiophoresis of a Weakly Charged Dielectric Fluid Droplet in a Cylindrical Pore. 圆柱形孔中弱带电电介质液滴的扩散电泳。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-13 DOI: 10.3390/mi16060707

Lily Chuang, Sunny Chen, Nemo Chang, Jean Chien, Venesa Liao, Eric Lee

{"title":"Diffusiophoresis of a Weakly Charged Dielectric Fluid Droplet in a Cylindrical Pore.","authors":"Lily Chuang, Sunny Chen, Nemo Chang, Jean Chien, Venesa Liao, Eric Lee","doi":"10.3390/mi16060707","DOIUrl":"10.3390/mi16060707","url":null,"abstract":"Diffusiophoresis of a weakly charged dielectric droplet in a cylindrical pore is investigated theoretically in this study. The governing fundamental electrokinetic equations are solved with a patched pseudo-spectral method based on Chebyshev polynomials, coupled with a geometric mapping scheme to take care of the irregular solution domain. The impact of the boundary confinement effect upon the droplet motion is explored in detail, which is most profound in narrow channels. We found, among other things, that the droplet moving direction may reverse with varying channel widths. Enhanced motion-inducing double-layer polarization due to the presence of a nearby channel wall is found to be responsible for it. In particular, an interesting and seemingly peculiar phenomenon referred to as the \"solidification phenomenon\" is observed here at some specific critical droplet sizes or electrolyte strengths in narrow channels, under which all the droplets move at identical speeds regardless of their viscosities. They move like a rigid particle without the surface spinning motions and the induced interior recirculating vortex flows. As the corresponding shear rate is zero at this point, the droplet is resilient to undesirable exterior shear stresses tending to damage the droplet in motion. This provides a helpful guideline in the fabrication of liposomes in drug delivery in terms of the optimal liposome size, as well as in the microfluidic and nanofluidic manipulations of cells, among other potential practical applications. The effects of other parameters of electrokinetic interest are also examined.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195106/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Optimization of a Tapered Magnetic Soft Continuum Robot for Enhanced Navigation in Cerebral Vasculature. 增强脑血管导航的锥形磁软连续体机器人的设计与优化。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-12 DOI: 10.3390/mi16060701

Jiahang Wang, Yuhang Liu, Xiwen Lu, Yunlong Zhu, Chenyao Bai

{"title":"Design and Optimization of a Tapered Magnetic Soft Continuum Robot for Enhanced Navigation in Cerebral Vasculature.","authors":"Jiahang Wang, Yuhang Liu, Xiwen Lu, Yunlong Zhu, Chenyao Bai","doi":"10.3390/mi16060701","DOIUrl":"10.3390/mi16060701","url":null,"abstract":"Magnetic soft continuum robots (MSCRs) have broad application advantages in vascular intervention; however, current MSCRs still face challenges in navigating the narrower and tortuous structure of the cerebral vasculature. To address this challenge, we propose a tapered MSCR (T-MSCR), which is designed to facilitate smooth navigation through microvascular structures via its miniature tip. Specifically, to optimize its bending ability, we combine the Gray Wolf Optimizer (GWO) with the Euler-Bernoulli beam theory and introduce a Discrete GWO (DGWO) approach to optimize the distribution of magnetic particles within the T-MSCR. We then demonstrate the optimization process of the T-MSCR's bending ability, comparing and analyzing its deflection angle and deformation characteristics, highlighting its capability to enter microvasculars. Furthermore, we demonstrate the magnetic steering and path selection capabilities of T-MSCR in a two-dimensional vascular model and its navigation performance in real-scale human vascular models. Finally, biocompatibility tests confirm that T-MSCR exhibits no toxicity to human cells, thereby laying a solid foundation for its clinical application. The proposed T-MSCR design and optimization are expected to provide a more efficient and feasible solution for future cerebrovascular interventions.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195137/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the Characteristics of the Laser Powder Bed Fusion of SiCp/AlSi10Mg Composites: From a Single Track to a Cubic Block. 激光粉末床熔合SiCp/AlSi10Mg复合材料的特性研究：从单轨到立方块。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-11 DOI: 10.3390/mi16060697

Ying He, Gang Xue, Haifeng Xiao, Haihong Zhu

{"title":"Investigating the Characteristics of the Laser Powder Bed Fusion of SiCp/AlSi10Mg Composites: From a Single Track to a Cubic Block.","authors":"Ying He, Gang Xue, Haifeng Xiao, Haihong Zhu","doi":"10.3390/mi16060697","DOIUrl":"10.3390/mi16060697","url":null,"abstract":"Laser powder bed fusion (LPBF) of SiCp/AlSi10Mg is promising in many industrial fields. In this paper, the characteristics of a 15 wt.% 1200 mesh SiCp/AlSi10Mg metal matrix composite fabricated by LPBF were investigated systematically, i.e., from a single track to a block. It was found that when the laser energy input was high enough, the single track was continuous and not distorted; when the laser energy input was low, the single track was unstable and wrinkled. The densification of the LPBFed composite sample was influenced significantly by the surface morphologies and geometric dimensions of the single tracks. As high as 98.9% relative density was achieved when the optimized processing parameters were used. Because of the good wettability and the interfacial reaction during the process, the interface of SiC and the matrix showed good bonding. Near the interface of SiC and the matrix, needle-shaped phase Al4SiC4 could be found both in the single track and block, and the faceted particle Si was formed in the block because of the interfacial reaction. The microhardness of the LPBFed SiCp/AlSi10Mg composites was much higher than that of the LPBFed unreinforced AlSi10Mg. A coefficient of friction of 0.178 and wear rate of 2.02 × 10-4 mm3/(N⋅m) were achieved for the LPBFed composites. The main wear mechanism was delamination wear, accompanied by abrasive wear. The maximum yield strength and ultimate compressive strength were 566.6 MPa and 764.1 MPa, respectively. The fracture mode of the LPBFed composites is mainly brittle fracture. This study provides a theoretical and technical basis for LPBFed SiCp/AlSi10Mg 3D parts.","PeriodicalId":18508,"journal":{"name":"Micromachines","volume":"16 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12195477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144506477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser Micromachining for the Nucleation Control of Nickel Microtextures for IR Emission. 激光微加工对镍微织构成核的红外发射控制。

IF 3 3区工程技术

Micromachines Pub Date : 2025-06-11 DOI: 10.3390/mi16060696

Tatsuhiko Aizawa, Hiroki Nakata, Takeshi Nasu

引用次数: 0