Materials & Design最新文献_第2页

Influence of continuous annealing on the interfacial compound evolution and mechanical behavior of hot-rolled titanium/steel composite plates

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-12 DOI: 10.1016/j.matdes.2025.113818

Zhenxiong Wei , Peng Huang , Qiang Gao , Xixi Su , Zhanhao Feng , Lin Peng , Jun Li , Yonghui Sun , Guoyin Zu

{"title":"Influence of continuous annealing on the interfacial compound evolution and mechanical behavior of hot-rolled titanium/steel composite plates","authors":"Zhenxiong Wei , Peng Huang , Qiang Gao , Xixi Su , Zhanhao Feng , Lin Peng , Jun Li , Yonghui Sun , Guoyin Zu","doi":"10.1016/j.matdes.2025.113818","DOIUrl":"10.1016/j.matdes.2025.113818","url":null,"abstract":"<div><div>To investigate the effect of continuous annealing on the interfacial compound evolution and mechanical properties of hot-rolled TA1/St12 composite plates, the hot-rolled composites underwent heat treatments at 850 °C–950 °C for 10 min. The influence of the pre-existing TiC interlayer on interfacial reaction behavior and compound evolution was analyzed, revealing the interfacial bonding and failure mechanisms of the Ti/steel composites. Results show that at annealing temperatures ≤900 °C, the pre-existing TiC layer effectively suppressed the interdiffusion between Fe and Ti, thereby preventing the formation of Fe-Ti phases. The interfacial layer consisted of nanoscale and submicron-scale TiC. During deformation and failure, microcracks were prone to initiate at the nanoscale TiC/steel interface and subsequently propagate towards the nanoscale TiC/submicron-scale TiC interface. At 950 °C, the pre-existing TiC layer at the interface dissolved, and the interfacial compound layer evolved into a mixture of nanoscale TiC, FeTi, and Fe<sub>2</sub>Ti. The FeTi/TiC + Fe<sub>2</sub>Ti and FeTi/Fe<sub>2</sub>Ti interfaces became the primary crack propagation paths, severely degrading the bonding quality of the Ti/steel composite. After annealing at 850 °C, the ductility and deformation compatibility of the Ti/steel composite plate were significantly enhanced, resulting in optimal overall mechanical properties. The ultimate tensile strength, shear strength, and elongation were 286 MPa, 127 MPa, and 44 %, respectively.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113818"},"PeriodicalIF":7.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and composition evolution of SPPs in the oxide film of Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr during corrosion

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-11 DOI: 10.1016/j.matdes.2025.113830

Tianguo Wei , Xun Dai , Yi Zhao , Dong Wang , Yufeng Du , JiYun Zheng , Chongsheng Long , Chao Sun

{"title":"Microstructure and composition evolution of SPPs in the oxide film of Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr during corrosion","authors":"Tianguo Wei , Xun Dai , Yi Zhao , Dong Wang , Yufeng Du , JiYun Zheng , Chongsheng Long , Chao Sun","doi":"10.1016/j.matdes.2025.113830","DOIUrl":"10.1016/j.matdes.2025.113830","url":null,"abstract":"<div><div>The microstructure and composition evolution of SPPs in the oxide film of Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr alloy during aqueous corrosion at 360 °C is investigated by HRTEM. The results show that SPPs with their distances to the O-M interface less than 500 nm remain metallic and exhibit similar structure and composition as those in Zr matrix. However, the SPPs with their distances to the O-M interface more than 1 μm exhibit obvious oxidation, characterized by the high O content and the appearance of the oxides of Fe, Cr and Zr inside the SPPs. The cracks connected to the SPPs could provide a good O supply and enhance the oxidation of the SPPs. Such cracks also promote the outwards diffusion of Fe and Cr from the SPPs during oxidation. In the oxidized Zr(FeCrNb)<sub>2</sub> particles, Fe has a faster outwards diffusion rate than Cr, while Nb seems to be almost immobile. Under certain conditions, small oxidized SPPs will leave porous regions within the oxide film locally. Tetragonal ZrO<sub>2</sub> is observed occasionally nearby the oxidized SPPs, which is thought to be caused by the doping effect of Fe depleted from the dissolved SPPs.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113830"},"PeriodicalIF":7.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geometric design and mechanical performance of isotropic bone scaffolds

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-11 DOI: 10.1016/j.matdes.2025.113829

Rongwei Xu , Zhou Zhang , Zhen Peng , Fuyuan Deng , Zhong Li , Xu Liu , Liang He

{"title":"Geometric design and mechanical performance of isotropic bone scaffolds","authors":"Rongwei Xu , Zhou Zhang , Zhen Peng , Fuyuan Deng , Zhong Li , Xu Liu , Liang He","doi":"10.1016/j.matdes.2025.113829","DOIUrl":"10.1016/j.matdes.2025.113829","url":null,"abstract":"<div><div>Bone tissue engineering scaffolds with reduced elastic anisotropy, enhanced mechanical performance, and high ratio of surface to volume are continuous pursuits. In this work, a mechanical metamaterial design strategy for isotropic bone scaffolds is proposed. The design of isotropic bone scaffolds is realized by interactive clipping of the lattice structure without nesting and complex adjustments. Employing homogenization, elastic stiffness tensors were estimated to evaluate the anisotropic measure, according to Zener ratio and elastic modulus. The designed scaffolds have a Zener ratio of nearly 1.0 and an increase of 20 % in stiffness over the pristine lattice. Quasi-static compression experiments were performed to investigate the Ti4Al6V scaffolds fabricated by selective laser melting, and the results showed that the isotropic scaffolds had compressive strengths of 100.59–198.53 MPa and stiffnesses of 1.86–4.88 GPa, which met the requirements for bone implants. Finite element simulations further revealed the structure’s mechanical response mechanism. Computational fluid dynamics results demonstrated that the structure’s permeability of 8.56 × 10<sup>−9</sup>-1.29 × 10<sup>−8</sup> m<sup>2</sup>, matches well with the requirements of human trabecular bone. Its large surface area facilitates osteogenic differentiation and enhances osseointegration. This study has important contribution in overcoming the constraints in the clinical applications of bone tissue engineering scaffolds.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113829"},"PeriodicalIF":7.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular dynamics and machine learning study of tensile behavior in single-crystal tungsten containing He bubbles

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-11 DOI: 10.1016/j.matdes.2025.113831

Pan-dong Lin , Yan Lin , Hong-guang Li , Shu-gang Cui , Jun-feng Nie , Bai-wen Zhong , Yu-peng Lu

{"title":"Molecular dynamics and machine learning study of tensile behavior in single-crystal tungsten containing He bubbles","authors":"Pan-dong Lin , Yan Lin , Hong-guang Li , Shu-gang Cui , Jun-feng Nie , Bai-wen Zhong , Yu-peng Lu","doi":"10.1016/j.matdes.2025.113831","DOIUrl":"10.1016/j.matdes.2025.113831","url":null,"abstract":"<div><div>Tungsten is commonly used in nuclear fusion plants, where irradiation defects (e.g., He bubbles) are frequently generated. This study investigates the impact of He bubbles on the tensile behavior of single-crystal tungsten through molecular dynamics (MD) simulations. The analysis considers varying He bubble sizes, He/V ratios (the number of helium atoms with respect to the number of vacancies in helium bubble), temperatures, and strain rates. The findings indicate that He bubbles significantly affect the material’s mechanical properties, with larger bubble sizes reducing tensile strength. Dislocation emission initiates from the void surface during tensile deformation. While the He/V ratio slightly influences peak stress values, it does not alter the overall stress–strain curve. Elevated temperatures lower peak stress, whereas higher strain rates increase it. Additionally, machine learning models predict the combined effects of bubble size, He/V ratio, strain rate, and temperature on the peak stress of tungsten, utilizing MD simulation data. This work offers important insights into tungsten’s behavior under irradiation conditions.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113831"},"PeriodicalIF":7.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanisms of in-situ polymerization for enhancing washout resistance of cement paste

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-10 DOI: 10.1016/j.matdes.2025.113825

Zhaoyang Sun , Ming Sun , Dongshuai Hou , Binmeng Chen

{"title":"Mechanisms of in-situ polymerization for enhancing washout resistance of cement paste","authors":"Zhaoyang Sun , Ming Sun , Dongshuai Hou , Binmeng Chen","doi":"10.1016/j.matdes.2025.113825","DOIUrl":"10.1016/j.matdes.2025.113825","url":null,"abstract":"<div><div>Conventional concrete is generally unsuitable for underwater construction, typically requiring the addition of anti-washout admixtures (AWAs) to improve its washout resistance. Herein, we demonstrate the enhancement of cement paste washout resistance through the in-situ polymerization of acrylamide (AM) and sodium acrylate (SA) and elucidate the underlying mechanisms. Macroscopic experiments reveal a significant improvement, with washout loss reduced to 12 % and 2 % of that observed in REF at 60 min for cement pastes modified by the in-situ polymerization of AM and SA, respectively. This enhancement is attributed to the formation of a more flocculated microstructure, where smaller flocs agglomerate into larger ones due to increased floc strength induced by the bridging effect of the resultant polymers. Consequently, flocs in cement pastes with in-situ polymerized SA exhibit higher strength and a denser structure, with a fractal dimension (<span><math><msub><mi>D</mi><mi>f</mi></msub></math></span>) exceeding 2.00, shifting the floc break mode from surface erosion to large-scale fragmentation and thereby improving washout resistance. Nevertheless, the in-situ polymerization of both AM and SA retards cement hydration, albeit through distinct mechanisms: the non-adsorbing PAM molecules primarily hinder the nucleation and formation of hydration products, whereas the adsorbed PAAS molecules predominantly inhibit the dissolution of aqueous species.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113825"},"PeriodicalIF":7.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the microstructure and dynamic mechanical behavior of Cu–Cr–Zr alloy manufactured by high-power laser powder bed fusion

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-10 DOI: 10.1016/j.matdes.2025.113826

Nadia Azizi , Hamed Asgari , Mahyar Hasanabadi , Akindele Odeshi , Ehsan Toyserkani

{"title":"On the microstructure and dynamic mechanical behavior of Cu–Cr–Zr alloy manufactured by high-power laser powder bed fusion","authors":"Nadia Azizi , Hamed Asgari , Mahyar Hasanabadi , Akindele Odeshi , Ehsan Toyserkani","doi":"10.1016/j.matdes.2025.113826","DOIUrl":"10.1016/j.matdes.2025.113826","url":null,"abstract":"<div><div>This study explores high-power laser powder bed fusion (LPBF) processing of Cu–Cr–Zr alloy, focusing on its high strain rate dynamic mechanical response and microstructural evolution. The alloy undergoes significant strain hardening during dynamic impact loading, primarily attributed to intensified dislocation interactions and multiplication. This is accompanied by thermal softening induced by adiabatic heating, therefore improving strain accommodation. As the strain rate increases from 4400 s<sup>−1</sup> to 11300 s<sup>−1</sup>, the ultimate compressive strength (UCS) enhances from 173 ± 8 MPa to 489 ± 14 MPa, demonstrating a high strain rate sensitivity (SRS) of ∼ 1. Microstructural examinations reveal that higher strain rates intensify the occurrence of adiabatic shear bands (ASBs), leading to severe localized plastic deformation. These ASBs generate localized stress concentrations, which in turn accelerate crack initiation and propagation through pore formation and coalescence within the ASBs. Despite this severe plastic deformation, texture analysis indicates that the crystallographic texture remains largely stable which suggests that the deformation mechanism is primarily governed by dislocation motion and interaction, rather than by crystal structure reorientation. Overall, the alloy balances strain hardening and strain accommodation at high strain rates, making it well-suited for applications requiring strength and resilience under dynamic impacts.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113826"},"PeriodicalIF":7.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel concept for self-healing metallic structural materials: Internal soldering of damage using low melting eutectics

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-10 DOI: 10.1016/j.matdes.2025.113821

L. Tanure , L. Patterer , S. Balakumar , M. Fekete , S. Mráz , S. Karimi Aghda , M. Hans , J.M. Schneider , H. Springer

{"title":"A novel concept for self-healing metallic structural materials: Internal soldering of damage using low melting eutectics","authors":"L. Tanure , L. Patterer , S. Balakumar , M. Fekete , S. Mráz , S. Karimi Aghda , M. Hans , J.M. Schneider , H. Springer","doi":"10.1016/j.matdes.2025.113821","DOIUrl":"10.1016/j.matdes.2025.113821","url":null,"abstract":"<div><div>A novel self-healing concept for metallic structural materials based on internal soldering using low-melting constituents is presented. The proof-of-principle study is based on a binary Al–4.28 wt%-Sn alloy, where a Sn-rich eutectic with a liquidus temperature of 228 °C acts as a self-assembling healing agent, and validated by a two-pronged approach: (i) A bulk sample with artificial damage is exploited to evaluate the healing effect on large cracks open to the sample surface and to gauge its mechanical effectiveness, whereas (ii) a 3.5 µm-thick Al<sub>2</sub>O<sub>3</sub>-Al-Sn-Al thin film multilayer architecture was used as a model system to study the healing mechanisms of small-scale internal damage induced by bending of the brittle Al<sub>2</sub>O<sub>3</sub> layer. A crack length of ∼1.6 mm could be successfully re-filled by the low-melting eutectic with a simple annealing treatment at 400 °C for 30 min, which increased the bulk tensile ductility to more than 120 % compared to a similarly damaged pure Al sample. Furthermore, it is shown that the dispersion of the Sn-rich eutectic can be effectively controlled by utilising the polymorphy of Sn during material production. Alloy design perspectives for translating these findings towards industrial materials and applications are outlined and discussed.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113821"},"PeriodicalIF":7.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the efficiency of luminescent solar concentrators via soft colloidal lithography negative templating

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-10 DOI: 10.1016/j.matdes.2025.113817

J.G. Guerrero-Felix , S.F.H. Correia , M. Alexandre , C.D. Gonzalez-Gomez , V. Sencadas , L. Fu , E. Ruiz-Reina , P.S. André , C.L. Moraila-Martinez , M.J. Mendes , R.A.S. Ferreira , M.A. Fernandez-Rodriguez

{"title":"Enhancing the efficiency of luminescent solar concentrators via soft colloidal lithography negative templating","authors":"J.G. Guerrero-Felix , S.F.H. Correia , M. Alexandre , C.D. Gonzalez-Gomez , V. Sencadas , L. Fu , E. Ruiz-Reina , P.S. André , C.L. Moraila-Martinez , M.J. Mendes , R.A.S. Ferreira , M.A. Fernandez-Rodriguez","doi":"10.1016/j.matdes.2025.113817","DOIUrl":"10.1016/j.matdes.2025.113817","url":null,"abstract":"<div><div>Building-integrated photovoltaics (BIPV) offers a sustainable pathway by seamlessly incorporating PV cells into architectural elements like façades and windows. In this study, we investigate the potential of luminescent down-shifting solar concentrators in combination with a nanophotonic light-trapping scheme to improve the optical-guiding capabilities and thereby enhance the energy conversion efficiency. We propose a novel cost-effective method to fabricate the photonic structures via soft colloidal lithography negative templating of thin films of TiO<sub>2</sub> nanoparticles, successfully scaling the production to 11x11 cm<sup>2</sup> glass windows. Through simulations and optical-electrical characterization, we demonstrate substantial improvements in energy harvesting for different angles of solar irradiation. We found increases in power output ranging from 57% for angles of incidence below 45° to above 100% for 60° thanks to the nanostructured TiO<sub>2</sub> nanoparticles coatings added to a bottom down-shifting layer. This shows that such integrated approach can enhance both the efficiency and aesthetic appeal of solar solutions in urban environments, advancing the design of energy-efficient, sustainable buildings. Our methodology ensures consistent solar energy capture all year-round, for the relevant range of sunlight incidence angles, while preserving the transparency and multifunctionality of building elements.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113817"},"PeriodicalIF":7.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ alloying of nonequiatomic TiNbMoTaW refractory bio-high entropy alloy via laser powder bed fusion: Achieving suppressed microsegregation and texture formation

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-09 DOI: 10.1016/j.matdes.2025.113824

Yong Seong Kim , Ozkan Gokcekaya , Kazuhisa Sato , Ryosuke Ozasa , Aira Matsugaki , Takayoshi Nakano

{"title":"In-situ alloying of nonequiatomic TiNbMoTaW refractory bio-high entropy alloy via laser powder bed fusion: Achieving suppressed microsegregation and texture formation","authors":"Yong Seong Kim , Ozkan Gokcekaya , Kazuhisa Sato , Ryosuke Ozasa , Aira Matsugaki , Takayoshi Nakano","doi":"10.1016/j.matdes.2025.113824","DOIUrl":"10.1016/j.matdes.2025.113824","url":null,"abstract":"<div><div>High-entropy alloys (HEAs) have attracted considerable attention owing to their excellent properties. However, the severe segregation of the constituent elements remains a common challenge in refractory HEAs. Recently, an approach to suppress segregation was proposed using laser powder bed fusion (LPBF) owing to the ultra-high cooling rates during solidification. Despite the advantages of LPBF, the persistent microsegregation between the dendritic and interdendritic regions of refractory HEAs and costly gas atomization process hinder the further development. To address these challenges, a novel nonequiatomic TiNbMoTaW refractory HEA was designed to minimize the difference between the liquidus and solidus temperatures to prevent segregation and phase separation for a better biological performance. In-situ alloying was implemented instead of costly and time-consuming gas atomization process. The segregation of constituent elements was suppressed by remelting, resulted in epitaxial growth and development of crystallographic texture, consequently reducing residual stress. The mechanical properties were improved due to the increase of solid solution strengthening and densification. It showed superior mechanical strength and equivalent biocompatibility compared to conventional biomaterials, indicating its superiority as a biomaterial. This study represents the first successful control of crystallographic texture through in-situ alloying of BioHEAs for next-generation biomaterials.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113824"},"PeriodicalIF":7.6,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large-scale As-Sb-S chalcogenide glasses with ultrahigh gradient refractive index

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-03-08 DOI: 10.1016/j.matdes.2025.113815

Peikuan Fan , Chengwei Gao , Gangjie Zhou , Linling Tan , Shiliang Kang , Jinjin Chen , Shixun Dai , Changgui Lin

{"title":"Large-scale As-Sb-S chalcogenide glasses with ultrahigh gradient refractive index","authors":"Peikuan Fan , Chengwei Gao , Gangjie Zhou , Linling Tan , Shiliang Kang , Jinjin Chen , Shixun Dai , Changgui Lin","doi":"10.1016/j.matdes.2025.113815","DOIUrl":"10.1016/j.matdes.2025.113815","url":null,"abstract":"<div><div>Gradient refractive index (GRIN) infrared lens provided additional degrees of freedom for correcting chromatic and spherical aberrations in optical design by combining an internally customized refractive index distribution with the surface curvature of optical elements. However, high-performance GRIN infrared lenses are still faced with multiple bottlenecks including complex processing processes, limited fabrication size, unsatisfying refractive index difference and inferior interface quality, which restrict their wide applications. In this study, a group of novel infrared lens with high plasticity and large refractive index difference were developed based on the As<sub>40-</sub><em><sub>x</sub></em>Sb<em><sub>x</sub></em>S<sub>60</sub> system. Planar and spherical infrared GRIN lenses were successfully fabricated using precision molding technology, with a maximum refractive index difference (Δ<em>n</em>) of 0.33 at a wavelength of 2 μm. In addition, a maximum diffusion depth of 6000 μm between two pieces of glass was achieved using a high-temperature melt diffusion process. The successful preparation of large-scale Δ<em>n</em> GRIN optical lens with controllable size and shape provides a new solution for realizing high performance and lightweight infrared optical systems.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113815"},"PeriodicalIF":7.6,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0