Journal of Materials Science最新文献_第4页

Negative magnetization and competing magnetic exchange interactions driven by B/Bʹ-site antisite disorder in Nd2CrMnO6 double perovskite: probing structural and magnetic properties Nd2CrMnO6双钙钛矿中B/B′位反位无序驱动的负磁化和竞争性磁交换相互作用：探测结构和磁性能

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-28 DOI: 10.1007/s10853-026-13852-z

Reena Sharma, Amit Hooda, Neelam Hooda, Ashima Hooda, Satish Khasa

{"title":"Negative magnetization and competing magnetic exchange interactions driven by B/Bʹ-site antisite disorder in Nd2CrMnO6 double perovskite: probing structural and magnetic properties","authors":"Reena Sharma, Amit Hooda, Neelam Hooda, Ashima Hooda, Satish Khasa","doi":"10.1007/s10853-026-13852-z","DOIUrl":"10.1007/s10853-026-13852-z","url":null,"abstract":"<div><p>Double perovskite Nd<sub>2</sub>CrMnO<sub>6</sub> is prepared by modified Sol-Gel Pechini method. Rietveld refinement suggested presence of both <i>P</i>2<sub>1</sub><i>/n</i> monoclinic (~ 63%) and <i>Pbnm</i> orthorhombic (~ 37%). Size-strain plot revealed lattice strain (~ 10.14 × 10<sup>-3</sup>) with nanoscale crystallite size (~ 22 nm). Raman spectra suggested two modes corresponding to <i>P</i>2<sub>1</sub><i>/n</i> monoclinic symmetry. Magnetic characterization revealed ferromagnetic (FM) ordering coexisting with antisite disorder-induced competing antiferromagnetic (AFM) interactions. <i>M</i>-<i>T</i> at 100 Oe revealed a paramagnetic state to long-range FM phase transition around <i>T</i><sub>c</sub> ~ 98 K. The sample exhibited a negative magnetization below <i>T</i><sub>comp</sub> ~ 29 K owing to competing interactions driven by antisite disorder and strong 3<i>d</i>-4<i>f</i> coupling between Cr<sup>3+</sup>/Mn<sup>3+</sup> and Nd<sup>3+</sup> sublattices. <i>M</i>-<i>T</i> at 500 Oe showed a shift of <i>T</i><sub>c</sub> to 102 K with negative magnetization below <i>T</i><sub>comp</sub> ~ 10 K. A stronger Griffiths phase is observed at 100 Oe with short-range FM clusters owing to AFM interactions, which weakened at 500 Oe. Maximum magnetization of 39.25 emu/g (~ 3.45 <i>μ</i><sub>B</sub>/f.u) is measured at 1.8 K, which gradually declines with temperature rise to 8.59 emu/g (~ 0.76 <i>μ</i><sub>B</sub>/f.u) at 125 K. Arrott plots at all measurement temperatures suggest a second-order phase transition (SOPT). The low-field magnetocaloric response exhibited a conventional magnetocaloric effect (MCE) peak around FM transition temperature, with maximum − Δ<i>S</i><sub>M</sub> ~ 0.88 x 10<sup>−2</sup> J/kg.K at 400 Oe. An inverse MCE is also observed in low-temperature region below <i>T</i><sub>comp</sub>.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"33794 - 33810"},"PeriodicalIF":4.4,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099187","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}

引用次数: 0

Tailoring PVD nitride coatings via refractory metal alloying—microstructural evolution and property optimization 通过难熔金属合金定制PVD氮化物涂层-显微组织演变和性能优化

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-28 DOI: 10.1007/s10853-026-13845-y

Leiping Guo, Haoqiang Zhang, Dongsen Geng, Xinbo Guo, Wentao Zhang, Chong Chen, Feng Mao, Liujie Xu, Shizhong Wei, Kwang Ho Kim

{"title":"Tailoring PVD nitride coatings via refractory metal alloying—microstructural evolution and property optimization","authors":"Leiping Guo, Haoqiang Zhang, Dongsen Geng, Xinbo Guo, Wentao Zhang, Chong Chen, Feng Mao, Liujie Xu, Shizhong Wei, Kwang Ho Kim","doi":"10.1007/s10853-026-13845-y","DOIUrl":"10.1007/s10853-026-13845-y","url":null,"abstract":"<div><p>To address the challenges of high-temperature oxidation and severe wear in cutting tools during high-speed machining, PVD nitride coatings modified with refractory metal elements have become a key approach for enhancing their service performance. This review systematically summarizes the influence and mechanisms of elements such as Ta, Mo, V, Nb, and W on the microstructure and properties of widely utilized hard coatings like TiAlN and CrAlN. Comprehensive analysis shows that different elements contribute through distinct strengthening and functionalization mechanisms: Ta and Nb mainly improve coating hardness, thermal stability, and oxidation resistance via solid-solution strengthening, delayed phase decomposition, and optimized oxide layer structure; Mo and V can form Magnéli phases or liquid oxide lubricating films at elevated temperatures, effectively reducing the coefficient of friction and achieving self-lubrication; while W exhibits both solid-solution strengthening and high-temperature lubrication characteristics. Moreover, combining refractory metal modification with multilayer design can produce a synergistic enhancement effect, leading to coating systems with superior overall performance through mechanisms such as interface strengthening and crack propagation inhibition. Therefore, this review provides a theoretical basis and design guidance for developing next-generation high-performance PVD protective coatings tailored to specific working conditions.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"34675 - 34702"},"PeriodicalIF":4.4,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149162967","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}

引用次数: 0

Self-healing epoxy composites with GO/MWCNT-reinforced microcapsules: influence of TiO2 sol–gel coating on tribological and corrosion performance 氧化石墨烯/纳米碳管增强微胶囊自愈环氧复合材料：TiO2溶胶-凝胶涂层对摩擦学和腐蚀性能的影响

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-27 DOI: 10.1007/s10853-026-13795-5

B. Vinod, U. Elaiyarasan, Nitla Stanley Ebenezer, P. Venkataramana

{"title":"Self-healing epoxy composites with GO/MWCNT-reinforced microcapsules: influence of TiO2 sol–gel coating on tribological and corrosion performance","authors":"B. Vinod, U. Elaiyarasan, Nitla Stanley Ebenezer, P. Venkataramana","doi":"10.1007/s10853-026-13795-5","DOIUrl":"10.1007/s10853-026-13795-5","url":null,"abstract":"<div><p>Composite structures are susceptible to failure due to the initiation and propagation of internal fractures. Self-healing reinforced microcapsules are developed and analysed. This investigation aims to develop and characterize microcapsules in epoxy composites. The matrix used was epoxy, and for the capsules, 5–15% waterborne polyurethane (WPU) along with 0.5–1.5% MWCNT and 2–6% GO (graphene oxide). Microcapsules containing healing agents were created by a two-step encapsulation technique, and the internal and external morphology of the resulting capsules was characterized. Moreover, a 5% TiO<sub>2</sub> sol–gel coating was used to enhance the corrosion resistance. The epoxy with 10%MWCNT-1%GO/5%TiO<sub>2</sub> hybrid composite (EHFC<sub>2</sub>) showed better crack-filling characteristics and improved mechanical properties. After coating with 5% TiO<sub>2</sub>, the tensile strength increased to 97.2 MPa, and the hardness grew to 54 BHN. The mechanical properties of epoxy hybrid composites were enhanced by the applied TiO<sub>2</sub> sol–gel coating. Furthermore, to assess the material's behaviour, specific wear rate and pH analysis were conducted.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"35246 - 35276"},"PeriodicalIF":4.4,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163063","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}

引用次数: 0

Hierarchically porous bamboo fiber@ GO-SiO2 composite membrane for efficient oil/water emulsion separation 分层多孔竹纤维@ GO-SiO2复合膜，高效分离油水乳液

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-27 DOI: 10.1007/s10853-026-13837-y

Haiyan Xu, Changjinsui Guan, Yubin He, Ting Mei, Zhiping Su, Liping Ning

{"title":"Hierarchically porous bamboo fiber@ GO-SiO2 composite membrane for efficient oil/water emulsion separation","authors":"Haiyan Xu, Changjinsui Guan, Yubin He, Ting Mei, Zhiping Su, Liping Ning","doi":"10.1007/s10853-026-13837-y","DOIUrl":"10.1007/s10853-026-13837-y","url":null,"abstract":"<div><p>The discharge of oily wastewater posed severe threats to ecosystems and human health, underscoring the urgent need for sustainable and cost-effective membrane materials. In this study, a novel superhydrophilic and underwater superoleophobic BF@GO-SiO<sub>2</sub> membrane was constructed through a three-step process involving the delignification of bamboo powder, the blending of GO-SiO<sub>2</sub> hybrids for roughness enhancement, and subsequent vacuum filtration coupled with Polyethyleneimine (PEI) grafting to precisely modulate the pore structure and surface wettability. The resulting membrane exhibited a highly porous three-dimensional network structure, with surface roughness increasing proportionally to GO-SiO<sub>2</sub> content. Attributing to its cellulose-rich framework and robust hydration layer, the BF@GO-SiO<sub>2</sub> membrane achieved exceptional oil/water separation efficiency of 99.5% at high permeation fluxes of 535.2 L m<sup>−2</sup> h<sup>−1</sup>. Furthermore, the membrane demonstrated superior separation performance (up to 99.4%) for various oil-in-water emulsions, including surfactant-free and those stabilized by CTAB, Tween 80, and SDS. This outstanding performance was attributed to the synergistic effects of its excellent surface hydrophilicity, capillary forces and 3D water channels. The membrane also exhibited excellent durability, maintaining stable separation efficiency (above 98.0%) after 30 cycles and across a wide pH range. Furthermore, the composite membrane achieved a maximum tensile strength of 23.5 MPa, demonstrating its robust mechanical performance. This work provided a scalable strategy for fabricating high-performance separation membranes, offering significant potential for practical oily wastewater treatment applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"34935 - 34952"},"PeriodicalIF":4.4,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163069","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}

引用次数: 0

Effect of different Sc contents on microstructure and mechanical property of WAAM Al-Mg-Sc alloys 不同Sc含量对WAAM Al-Mg-Sc合金组织和力学性能的影响

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-27 DOI: 10.1007/s10853-026-13792-8

Simeng Ren, Fuguan Cong, Ruizhi Wu, Yingjun Wang, Mingchao Yu, Tao Liu, Guojun Wang, Shichao Zhou, Zhiqiang Xu, Yingdong Li, Hao Wu, Qi Zhang, Shulei Li

{"title":"Effect of different Sc contents on microstructure and mechanical property of WAAM Al-Mg-Sc alloys","authors":"Simeng Ren, Fuguan Cong, Ruizhi Wu, Yingjun Wang, Mingchao Yu, Tao Liu, Guojun Wang, Shichao Zhou, Zhiqiang Xu, Yingdong Li, Hao Wu, Qi Zhang, Shulei Li","doi":"10.1007/s10853-026-13792-8","DOIUrl":"10.1007/s10853-026-13792-8","url":null,"abstract":"<div><p>This paper analyzes the influence of Sc content on the WAAM Al-Mg-Sc structural component. It systematically compares the mechanical property and microstructure differences of components with different Sc contents in the deposited state and the aged state. The results show that the UTS of 0.16%Sc, 0.24Sc%, 0.33%Sc, and 0.50%Sc deposited metal is 302MPa, 311MPa, 320MPa, and 341MPa, respectively. After aging treatment (350 ℃for 2h), the UTS increases to 360MPa, 384MPa, 398MPa, and 406MPa. The primary Al<sub>3</sub>(Sc,Zr) particles can act as heterogeneous nucleation points, refining the metal grain structure and enhancing the alloy's strength. There is no coarse-grained structure in the alloy metal. A large number of secondary Al<sub>3</sub>(Sc,Zr) particles precipitate after aging treatment, which exert the effect of precipitation strengthening. The combined effect of grain refinement strengthening and precipitation strengthening has enhanced the strength of the samples. Both the wire and the additive components with 0.50%Sc contain Al<sub>3</sub>(Sc,Zr) complex molecule. Considering the cost factor, the Sc content should be added in the range of 0.33–0.50% in engineering applications.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"34225 - 34239"},"PeriodicalIF":4.4,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099265","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}

引用次数: 0

Adapting superelasticity in Cu–Al–Mn shape memory alloys via thermomechanical processing and cyclic heat treatment 通过热机械加工和循环热处理使Cu-Al-Mn形状记忆合金具有超弹性

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-27 DOI: 10.1007/s10853-026-13738-0

Mahdieh Sabbaghian, Mohammad Zaman Kabir

{"title":"Adapting superelasticity in Cu–Al–Mn shape memory alloys via thermomechanical processing and cyclic heat treatment","authors":"Mahdieh Sabbaghian, Mohammad Zaman Kabir","doi":"10.1007/s10853-026-13738-0","DOIUrl":"10.1007/s10853-026-13738-0","url":null,"abstract":"<div><p>Cu-based shape memory alloys (SMAs) are promising, cost-effective alternatives to Ni–Ti alloys for superelastic applications. This study investigates the effects of different thermomechanical processing routes, including hot rolling, annealing, and cyclic heat treatment (CHT), on the microstructure, mechanical response, and functional properties of a Cu–15.8Al–11Mn (at%) alloy. Microstructural and phase characterization was performed using differential scanning calorimetry (DSC), X-ray diffraction (XRD), electron microscopy, and microhardness measurements. Superelastic behavior was evaluated through cyclic tensile testing, while the shape memory effect was assessed using bending recovery experiments. DSC analysis of the CHT-treated specimens revealed low austenite finish temperatures (<i>A</i><sub>f</sub> < 0 °C). Cyclic tensile tests showed that hot rolling significantly increased the ultimate tensile strength and cumulative energy density to fracture by approximately 74% and 39%, respectively. In contrast, CHT promoted pronounced superelasticity, resulting in a recoverable strain of 6.24%, which was more than five times that of the control specimen. The main novelty of this work is the demonstration that a combined hot rolling and cyclic heat treatment route promotes pronounced abnormal grain growth while simultaneously enhancing strength, ductility, and superelasticity, with an ultimate tensile strength of up to 572 MPa, a total strain of up to 15.4%, and a recoverable superelastic strain of up to 6.86%.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"34049 - 34087"},"PeriodicalIF":4.4,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099266","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}

引用次数: 0

Fabrication of a zinc L-aspartate Bio-MOF-based hybrid pigment for silk-fiber dyeing 丝纤维染色用l -天冬氨酸锌基生物mof杂化颜料的制备

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-27 DOI: 10.1007/s10853-026-13811-8

Xuemei Wang, Shuang Liang, Dongdong Zhang, Yanfei Wei, Dehong Ma, Hao Wang, Jixiang He, Yusheng Lei

{"title":"Fabrication of a zinc L-aspartate Bio-MOF-based hybrid pigment for silk-fiber dyeing","authors":"Xuemei Wang, Shuang Liang, Dongdong Zhang, Yanfei Wei, Dehong Ma, Hao Wang, Jixiang He, Yusheng Lei","doi":"10.1007/s10853-026-13811-8","DOIUrl":"10.1007/s10853-026-13811-8","url":null,"abstract":"<div><p>Gardenia yellow pigment (GYP) is a natural colorant with potential for sustainable textile coloration; however, its practical application is limited by its susceptibility to degradation under acidic, alkaline, thermal, and light exposure conditions. In this study, a zinc L-aspartate bio-metal–organic framework (Zn L-Asp Bio-MOF) was employed as a porous host to prepare a solid hybrid pigment (EGYP), and the GYP released from EGYP was subsequently applied to silk-fiber dyeing. The adsorption–encapsulation efficiency of GYP into EGYP reached 86.15%. In a 0.15 mol L<sup>−1</sup> NaOH solution, 55.06% of the loaded GYP was released from EGYP. The released GYP imparted a relatively uniform yellow shade to the silk fibers, and all evaluated color fastness ratings reached grade 3 or higher. The antibacterial rates against Escherichia coli and Staphylococcus aureus reached 83.03% and 84.38%, respectively, while the antioxidant activity was 50.60%. These results demonstrate that Zn L-Asp Bio-MOF has promising application potential as a porous host for solid GYP-based hybrid pigments intended for silk-fiber coloration.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"34876 - 34896"},"PeriodicalIF":4.4,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149162959","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}

引用次数: 0

Visible-light–responsive mesoporous N-doped TiO2 nanophotocatalyst for efficient Rhodamine B removal from water under direct sunlight 可见光响应介孔n掺杂TiO2纳米光催化剂在阳光直射下从水中高效去除罗丹明B

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-26 DOI: 10.1007/s10853-026-13769-7

Hagos Feleke Gebremariam, Elias Assayehegn, Goitom Gebreyohannes Berhe, Gebremedhin Gebremariam Gebreegziabher, Mulu Alemayehu Abate, Kalayou Hiluf Gebremedhin, Berhanu Menasbo Tegegne, Tariku Bekele Gebru, Ananthakumar Solaiappan

{"title":"Visible-light–responsive mesoporous N-doped TiO2 nanophotocatalyst for efficient Rhodamine B removal from water under direct sunlight","authors":"Hagos Feleke Gebremariam, Elias Assayehegn, Goitom Gebreyohannes Berhe, Gebremedhin Gebremariam Gebreegziabher, Mulu Alemayehu Abate, Kalayou Hiluf Gebremedhin, Berhanu Menasbo Tegegne, Tariku Bekele Gebru, Ananthakumar Solaiappan","doi":"10.1007/s10853-026-13769-7","DOIUrl":"10.1007/s10853-026-13769-7","url":null,"abstract":"<div><p>The escalating presence of organic pollutants in water necessitates the development of advanced remediation technologies. Herein, we report the synthesis and characterization of a visible-light-active N-doped titania (N/TiO<sub>2</sub>) photocatalyst, which was synthesized by a facile sol-gel of titanium butoxide and a benign N-dopant source. The synthesized anatase/brookite/rutile ternary phase N/TiO<sub>2</sub> material was characterized by XRD, XPS, EPR, SEM, TEM, BET, DRS, PL, EDS, FTIR, TGA, and Raman techniques, and its photocatalytic degradation was applied against Rhodamine B (RhB) dye from an aqueous solution. The key operating parameters, such as the amounts of N/TiO<sub>2</sub>, initial RhB concentration, pH, and illumination duration, have been optimized to achieve the highest RhB degradation percentage. The findings demonstrated that N/TiO<sub>2</sub> possesses a mesoporous rutile-rich triphasic (51% anatase, 36% rutile, and 13% brookite) structure. Importantly, it displayed a higher degradation activity (99.3%) within 3h of sunlight irradiation at pH 7.0, along with a faster degradation rate (0.025 min<sup>−1</sup>), which is 2.5 times faster than unoptimized N/TiO<sub>2</sub> and 5 times faster than undoped TiO<sub>2</sub> materials. Furthermore, a high reusability of the photocatalyst was observed over five cycles of photocatalytic reactions. This enhancement is attributed to the synergistic effect of optimal ternary phase, lower band gap energy, higher light absorption, well-separated charge carriers, and N-doping. Such optimized N-doped photocatalysts have practical applications for water-pollutant demineralization from water systems.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"33725 - 33745"},"PeriodicalIF":4.4,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098787","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}

引用次数: 0

Interfacial microstructural heterogeneity and elevated-temperature tensile behavior of Cu/Al/Cu composite plates fabricated by high-temperature oxygen-free rolling 高温无氧轧制Cu/Al/Cu复合材料界面显微组织非均质性及高温拉伸性能

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-26 DOI: 10.1007/s10853-026-13839-w

Wenbo Bai, Huisheng Cai, Mahmoud Ebrahimi, Yuchao Zhao, Qudong Wang

{"title":"Interfacial microstructural heterogeneity and elevated-temperature tensile behavior of Cu/Al/Cu composite plates fabricated by high-temperature oxygen-free rolling","authors":"Wenbo Bai, Huisheng Cai, Mahmoud Ebrahimi, Yuchao Zhao, Qudong Wang","doi":"10.1007/s10853-026-13839-w","DOIUrl":"10.1007/s10853-026-13839-w","url":null,"abstract":"<div><p>Understanding the deformation compatibility and failure mechanisms of Cu/Al laminated composites at elevated temperatures is essential for their reliable applications. In this study, Cu/Al/Cu composite plates were fabricated by high-temperature oxygen-free rolling and their interfacial microstructure and elevated-temperature tensile behavior were systematically investigated. A metallurgically bonded Cu/Al interface with a thin (4.8 μm) multilayer IMC region consisting of Al<sub>2</sub>Cu, AlCu, and Al<sub>4</sub>Cu<sub>9</sub> was achieved. EBSD revealed a pronounced interface-induced gradient microstructure, characterized by refined grains near the interface and gradual grain coarsening toward the matrix. Moreover, the Al layer exhibited a higher degree of dynamic recrystallization than the Cu layer, resulting in weakened rolling textures. The estimated GND density was also substantially higher in the Cu layer (18.57 ×10<sup>14</sup> m<sup>−2</sup>) than in the Al layer (6.57 ×10<sup>14</sup> m<sup>−2</sup>). High temperature tensile tests reveal that the yield strength (YS), ultimate tensile strength (UTS) and elongation (EL) all decreased with increasing temperature. The strength degradation was mainly associated with thermal softening, whereas the reduction in elongation was attributed to Cu/Al thermal-expansion mismatch and progressive interfacial damage. The strain-hardening behavior was analyzed using strain-hardening rate and Kocks–Mecking plots, revealing a temperature-dependent decrease in hardening capability caused by thermally activated recovery, heterogeneous strain partitioning, and interfacial damage. At 250–300 °C, fracture surfaces exhibited pronounced interfacial separation accompanied by Cu–Al IMC debris, demonstrating the increasing contribution of IMC-assisted interfacial damage to premature fracture.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"35168 - 35188"},"PeriodicalIF":4.4,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149162975","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}

引用次数: 0

Review: multifunctional radar-absorbing materials—integration of structural and electromagnetic performance 综述：多功能雷达吸波材料——结构与电磁性能的结合

IF 4.4 3区材料科学

Journal of Materials Science Pub Date : 2026-09-26 DOI: 10.1007/s10853-026-13614-x

Kaushal Kishor, Javed Sheikh

{"title":"Review: multifunctional radar-absorbing materials—integration of structural and electromagnetic performance","authors":"Kaushal Kishor, Javed Sheikh","doi":"10.1007/s10853-026-13614-x","DOIUrl":"10.1007/s10853-026-13614-x","url":null,"abstract":"<div><p>The present paper offers a comprehensive review of electromagnetic (EM) absorbing materials, focusing on their operating principles, design approaches, and material systems. A critical investigation of important performance parameters enables a methodical comparison of the effectiveness of different manufacturing methods for EM absorbers. Radar absorbent materials (RAMs), metamaterial-based systems, single- and multilayer structures, and newly developed active and conformal absorbers are some of the innovative architectures that have replaced traditional EM absorbers. Particular focus is placed on polymer-based composite absorbers, which combine effective electromagnetic attenuation with load-bearing capacity, making them very appealing for aerospace stealth applications. These multipurpose composites exhibit broadband and narrowband absorption over a wide frequency range, from the optical regime to extremely high frequencies. Along with outlining future research difficulties, the paper also provides a systematic path for the development and real-world use of sophisticated multifunctional polymer composite absorbers.</p><h3>Graphical abstract</h3><p>Electromagnetic (EM) absorbers: principles, design strategies, and materials are reviewed. Performance metrics across absorber fabrication methods are compared. Radar absorption materials (RAMs), metamaterials, and multilayer absorber designs are covered. Polymer composites are focused on stealth and load-bearing applications. Broadband performance and future research challenges are outlined.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"33398 - 33430"},"PeriodicalIF":4.4,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098788","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}

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