Advanced Engineering Materials最新文献

{"title":"Two-Bit Coding Realization of Acoustic Parity Metasurfaces","authors":"Zhanlei Hao,&nbsp;Haojie Chen,&nbsp;Shan Zhu,&nbsp;Yuhang Yin,&nbsp;Yadong Xu,&nbsp;Huanyang Chen","doi":"10.1002/adem.202402301","DOIUrl":"https://doi.org/10.1002/adem.202402301","url":null,"abstract":"<p>Parity is an important concept in physics, yet its crucial role in controlling optical and acoustic fields has long been overlooked. Herein, the viewpoint of parity as a novel degree of freedom in precisely controlling wave behavior is proposed and demonstrated, originating from the analytical proof for the universality of the parity high-order diffraction effects in phase gradient metasurfaces. This unique parity diffraction phenomenon is applied to acoustic coding metasurfaces to achieve a dual process for the waveform reshaping and energy redistribution of plane waves. Analytical calculations, numerical demonstrations, and acoustic experiments verify the feasibility of this new parity paradigm in realizing digital information encoding. This work has potential applications in underwater communications and information anticounterfeiting security.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phase Transformation-Assisted Sintering for the Fabrication of a Bulk Nanocrystalline Fe–5 at.% Zr Alloy","authors":"Yubin Cong,&nbsp;Jie Wan,&nbsp;Guibin Shan,&nbsp;Yuzeng Chen","doi":"10.1002/adem.202402064","DOIUrl":"https://doi.org/10.1002/adem.202402064","url":null,"abstract":"<p>The powder metallurgy route of high-energy ball milling followed by sintering is a common method used to fabricate nanocrystalline (NC) metals. However, the poor thermal stability of NC metals limits the use of high temperatures during sintering, which can result in insufficient densification. In order to achieve a higher relative density at low sintering temperatures, phase transformation-induced volume expansion during sintering is taken advantage of. To prove this hypothesis, NC Fe–5 at.% Zr alloy is sintered at a temperature above A3 (1073 K), which is then decreased below A1 (873 K) to introduce volume expansion caused by phase transformation from austenite to ferrite. For comparison, it is also sintered at a constant temperature above A3 (1073 K). Results show that the proposed strategy can not only enhance the relative density of as-sintered NC Fe–5 at.% Zr alloy, but also ensure a relatively smaller grain size. This study is beneficial for the fabrication of high-performance NC metals.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 4","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breaking the Cardiovascular Flow Barrier for Dielectric Elastomer Actuator-Based Pumping: Design and Characterization","authors":"Amine Benouhiba,&nbsp;Armando Walter,&nbsp;Silje Ekroll Jahren,&nbsp;Francesco Clavica,&nbsp;Dominik Obrist,&nbsp;Yoan Civet,&nbsp;Yves Perriard","doi":"10.1002/adem.202570005","DOIUrl":"https://doi.org/10.1002/adem.202570005","url":null,"abstract":"<p><b>Dielectric Elastomer Actuators</b>\u0000 </p><p>In article number 2401306, Amine Benouhiba and co-workers present a high-performance tubular dielectric elastomer pump optimized for heart assist applications. Operating at pressures of 15, 70, and 120 mmHg, it achieves a flow rate of 6.5 L min^–1 and a pressure head of 27.5 mmHg, underscoring its potential to enhance fluid circulation and support cardiovascular function in medical applications.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 2","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adem.202570005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing the Friction Stir Process Parameters of the AZ31 Mg Alloy/YSZ-Al2O3 Hybrid Surface Composite Using the Response Surface Methodology-Based Artificial Bee Colony Algorithm","authors":"Ashokkumar Mohankumar,&nbsp;Arunkumar Thirugnanasambandam,&nbsp;Vignesh Packkirisamy","doi":"10.1002/adem.202402477","DOIUrl":"https://doi.org/10.1002/adem.202402477","url":null,"abstract":"<p>The optimization of friction stir process (FSP) parameters plays a pivotal role in enhancing the mechanical properties of friction-stirred hybrid surface composites (FSHSC), which are crucial for lightweight and high-performance structural applications. This study introduces the use of the artificial bee colony algorithm (A_BCA) for optimizing process parameters of yttria-stabilized zirconia (YSZ) and alumina (Al₂O₃)-reinforced FSHSC. A three-factor, five-level central composite design matrix based on response surface methodology is utilized to develop predictive models for ultimate tensile strength (UTS) and yield strength (YS). Analysis of variance confirms the robustness and reliability of the models, with high statistical significance (<i>p</i> &lt; 0.0001) and <i>R</i>² values of 0.9940 for UTS and 0.9938 for YS. A_BCA identifies optimal parameters—tool rotational speed of 1001.543 rpm, tool transverse speed of 71.896 mm min⁻¹, and tool axial force of 7.23 kN—achieving UTS of 198.345 MPa and YS of 163.534 MPa. The study demonstrates that A_BCA is a powerful tool for optimizing FSP parameters and improving hybrid composite performance. This methodology offers a framework for advancing the mechanical properties of composites, with significant implications for lightweight engineering applications.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temperature-Dependent Photoluminescence and Grain Size Control in a Prototypical Lead-Free Bismuth Halide Perovskite","authors":"Muhammad Jawad,&nbsp;Sumera Siddique,&nbsp;Zainab Aslam,&nbsp;Sajid Hussain,&nbsp;Tahir Sajjad Butt,&nbsp;Faisal Saeed,&nbsp;Qurat Ul Ain,&nbsp;Ata Ulhaq,&nbsp;Ammar A. Khan","doi":"10.1002/adem.202402009","DOIUrl":"https://doi.org/10.1002/adem.202402009","url":null,"abstract":"<p>Lead-free perovskites are non-toxic solution-processed semiconductors that promise applications in solar cells, light-emitting diodes, and advanced photodetectors with broad and easily tunable spectral sensitivity. However, understanding excitonic properties and growth conditions are key for the development of efficient and stable materials. This study explores the temperature-dependent photoluminescence (PL) and the influence of anti-solvent on crystal size in methylammonium bismuth iodide (MA₃Bi₂I₉), a prototypical bismuth-based lead-free perovskite. Using a one-step spin-coating method, low-dimensional hexagonal MA₃Bi₂I₉ crystals with controllable grain sizes ranging from 1.4 to 36 μm are developed, employing chlorobenzene as an anti-solvent. Temperature-dependent micro-PL measurements reveal multi-component PL emissions below 199 K and interestingly, below 144 K, bound excitonic recombination dominates the PL spectra. The observed free and bound exciton recombination peaks are consistent with the MA₃Bi₂I₉ exciton binding energy of ≈340 meV reported in earlier studies. Observed temperature-dependent PL spectra provide deeper insights into the excitonic properties of MA₃Bi₂I₉, which have strong correlation with optoelectronic device performance, thereby providing a quick tool to assess as-synthesized lead-free perovskite films for defect-site density and binding energy. Furthermore, the potential of concentration-dependent anti-solvent engineering in obtaining controllable bismuth perovskite crystal grain sizes for optoelectronic applications is underscored.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Novel Approach for Fabricating In Situ Aluminum Foam-Filled Carbon Steel Tubes via Hot-Dip Aluminizing","authors":"Zhanhao Feng,&nbsp;Xi Sun,&nbsp;Qiang Gao,&nbsp;Xixi Su,&nbsp;Peng Huang,&nbsp;Zhenxiong Wei,&nbsp;Guoyin Zu","doi":"10.1002/adem.202402446","DOIUrl":"https://doi.org/10.1002/adem.202402446","url":null,"abstract":"<p>Herein, a new process combining hot-dip aluminizing (HDA) technology with melt foaming method is developed to prepare in situ aluminum foam-filled AISI 1020 tubes with metallurgical bonding which has the advantages of low production cost and wide range of product sizes. Detailed microstructural characterization is performed at the foam/tube interface of in situ foam-filled tubes (FFTs). Quasistatic compressive experiments are carried out to investigate deformation behavior and mechanical properties of ex situ and in situ FFTs with and without HDA pretreatment (in situ-HDA FFTs and in situ-without HDA FFTs). The results indicate that HDA pretreatment effectively improves the wettability between the steel tube and the aluminum melt, enhancing the interfacial bonding quality between the two. Under compressive loading, in situ-HDA FFTs axially deform in an efficient mixed mode, showing superior energy absorption capability as compared to the empty heat treatment (empty-HT) tubes. Specifically, in situ-HDA FFTs have the highest specific energy absorption of an average of 16.6 kJ kg⁻¹ which is 13% higher than the average value of ex situ-HT FFTs.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradation Behavior and Mechanical Properties of Porous Biodegradable FeMnC Alloys Produced by Powder Metallurgy for Biomedical Applications","authors":"Abdelhakim Cherqaoui,&nbsp;Quang Nguyen Cao,&nbsp;Carlo Paternoster,&nbsp;Simon Gélinas,&nbsp;Paolo Mengucci,&nbsp;Carl Blais,&nbsp;Diego Mantovani","doi":"10.1002/adem.202402143","DOIUrl":"https://doi.org/10.1002/adem.202402143","url":null,"abstract":"<p>\u0000The advent of biodegradable implants represents a landmark orientation in the biomedical field toward a new generation of medical devices, offering improved patient outcomes, and eliminating the need for subsequent surgeries. FeMn alloys are well-established as promising candidates for such applications. This study analyzes the microstructure, mechanical properties, and degradation behavior of FeMnC alloys produced via pressing and sintering process using water-atomized FeMnC powder. To investigate the impact of pore size and volume fraction on the mechanical properties and degradation rates, two groups of FeMnC samples were prepared, one compacted at 600 MPa (CP 600) and the other at 700 MPa (CP 700). In addition, pure Fe samples compacted at 600 MPa and prepared using the same methodology were used as a reference. Chemical analysis carried out on both the pre-alloyed powder and the resulting sintered samples (CP 600 and CP 700) revealed a significant reduction in the amount of Mn, O, and notably C after sintering. The pure Fe group showed the greatest mechanical strength with an average tensile rupture strength of 446 ± 24 MPa. Among the three groups, CP 600 exhibited the highest degradation rate (−0.339 ± 0.057 mmpy) after 14 days of static immersion degradation test in modified Hanks' solution, demonstrating a degradation behavior characterized by mass gain.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 4","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adem.202402143","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effective Design of Three New Layered Gradient Lattice Structures and Their Crashworthiness","authors":"Qingheng Tang,&nbsp;Qinghai Zhao,&nbsp;Chao Zhang,&nbsp;Runze Yan,&nbsp;Honghui Li","doi":"10.1002/adem.202402264","DOIUrl":"https://doi.org/10.1002/adem.202402264","url":null,"abstract":"<p>Gradient lattice structures are gaining increased attention due to better meeting the crashworthiness requirements of lightweight structures. This study explores how cell number, configuration, and diameter ratio affect mechanical properties and energy absorption. Three new types of gradient lattice structures are designed. Initially, the mechanical properties, deformation behaviors, and energy absorption capabilities of gradient lattice structures are analyzed through finite element simulations. Subsequently, gradient lattice structures are fabricated using 316L laser powder bed fusion technology, and quasistatic compression tests are conducted using a materials testing machine to validate the effectiveness of the simulation results. The results show that the inner and outer structure diameter ratio gradient strategy has the greatest influence on the mechanical properties and energy absorption capacity of the lattice structure. Among all the gradient structures, the BSF structure (cell number gradient lattice structure-F) is the optimal structure, whose maximum impact force and total energy absorption are 88.8 and 107.9% higher than those of the conventional uniform JYC structure (uniform gradient lattice structure-C), respectively. The three gradient strategies proposed in this study provide insights into the design and optimization of impact-resistant lattice structures, which can be used as potential materials for future impact-resistant applications.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 4","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"4D Printing of Magnetic Shape Memory Polymer—La0.7Sr0.3MnO3 Nanocomposite","authors":"Mohammad H. Yousuf,&nbsp;Wael Abuzaid,&nbsp;Mehmet Egilmez","doi":"10.1002/adem.202402423","DOIUrl":"https://doi.org/10.1002/adem.202402423","url":null,"abstract":"<p>Four-dimensional printing has revolutionized traditional three-dimensional printing (3D printing) by using smart materials such as shape memory polymers (SMPs). As nonmagnetic materials, SMPs require direct exposure to heat for the shape memory effect to be triggered. This limitation can be addressed by incorporating magnetic nanoparticles, allowing the SMP/nanocomposite to be remotely heated through induction heating. This work focuses on the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mrow>\u0000 <mtext>La</mtext>\u0000 </mrow>\u0000 <mrow>\u0000 <mn>1</mn>\u0000 <mo>−</mo>\u0000 <mi>x</mi>\u0000 </mrow>\u0000 </msub>\u0000 <msub>\u0000 <mrow>\u0000 <mtext>Sr</mtext>\u0000 </mrow>\u0000 <mi>x</mi>\u0000 </msub>\u0000 <msub>\u0000 <mrow>\u0000 <mtext>MnO</mtext>\u0000 </mrow>\u0000 <mn>3</mn>\u0000 </msub>\u0000 </mrow>\u0000 <annotation>$left(text{La}right)_{1 - x} left(text{Sr}right)_{x} left(text{MnO}right)_{3}$</annotation>\u0000 </semantics></math> (LSMO) manganite with an optimized stoichiometry of <i>x</i> = 0.3. Polycrystalline LSMO is sintered from pure powders and later added to SMP through the solution mixing route, and finally extruded into filaments to be used for 3D printing. Significant improvements in the elastic modulus, yield, and ultimate strengths are observed following LSMO addition. All the composites exhibit magnetic moments near 3.5 μ_B Mn⁻¹ at the ground state indicating desirable magnetic properties. Shape memory properties are evaluated following the application of programming and recovery cycles on the as-printed single-cell auxetic structure. The evaluation of the bulk strain on the auxetic structure for 0 and 20 wt% LSMO/SMP nanocomposite reveals no change in shape fixity, a slight decrease in shape recovery ratio from 88 to 81%, and a significant improvement in the shape recovery rate from 124.3 to 179.5% min⁻¹.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene–Nickel Oxide–Polyaniline Ternary Nanocomposite-Embedded Epoxy Coating on Mild Steel for Corrosion Protection","authors":"Ravi Saini,&nbsp;Ramesh N. Goswami,&nbsp;Om P. Sharma,&nbsp;Raghuvir Singh,&nbsp;Amit Kumar,&nbsp;Navin Kumar,&nbsp;Om P. Khatri","doi":"10.1002/adem.202402332","DOIUrl":"https://doi.org/10.1002/adem.202402332","url":null,"abstract":"<p>The present work addresses the synthesis and application of graphene-based ternary nanocomposite for anticorrosion performance to protect mild steel in an accelerated corrosive environment. The chemically-functionalized graphene-nickel oxide (Gr-NiO)-PANI ternary nanocomposite is synthesized by the hydrothermal reduction of graphene oxide (GO) and nickel salt in the presence of urea, followed by interfacial wrapping of Gr-NiO by in situ grown polyaniline (PANI). The transmission electron microscopic images reveal the wrapping of Gr-NiO by PANI in the Gr-NiO-PANI ternary nanocomposite. The spectroscopic analyses (Fourier transform infrared and Raman) suggest the multiple interactions between Gr-NiO and interfacially grown PANI in Gr-NiO-PANI. The thoroughly blended Gr-NiO-PANI ternary nanocomposite into epoxy matrix via interfacial interactions provides uniform coating (thickness: 87 ± 6 μm) on mild steel and increases the hardness by 160%. The corrosion inhibition performance of PANI, Gr-PANI, and Gr-NiO-PANI nanocomposites in epoxy coating is probed based on electrochemical and salt spray measurements in a 3.5% NaCl solution. The Gr-NiO-PANI in the epoxy coating substantially enhances the total impedance and protects the underneath mild steel. The salt spray tests further corroborate the electrochemical results and demonstrate substantial enhancement in corrosion inhibition by Gr-NiO-PANI nanocomposite with no sign of corrosion even after 10 days, revealing its potential to mitigate corrosion of mild steel-based structural and engineering installations.</p>","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}