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Investigating phase regimes via combinatorial synthesis: A pathway to tailored materials libraries 通过组合合成研究相体系:定制材料库的途径
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-26 DOI: 10.1016/j.matdes.2025.113881
K. Russell , C.A. Kohnke , J.R. Trelewicz , A.M. Hodge
{"title":"Investigating phase regimes via combinatorial synthesis: A pathway to tailored materials libraries","authors":"K. Russell ,&nbsp;C.A. Kohnke ,&nbsp;J.R. Trelewicz ,&nbsp;A.M. Hodge","doi":"10.1016/j.matdes.2025.113881","DOIUrl":"10.1016/j.matdes.2025.113881","url":null,"abstract":"<div><div>Combinatorial magnetron sputtering has been implemented to synthesize compositionally graded thin film material libraries, enabling rapid exploration of structure–property trends via high-throughput characterization techniques. In this study, an Fe-W material library with 169 unique samples is sputter-deposited to investigate the amorphous-crystalline transition across the Fe – 9.4 to 45.5 at.% W range. X-ray diffraction and electron microscopy techniques reveal trends in film microstructure and morphology that are intrinsically connected to alloy composition but further shown to be dependent on synthesis conditions by decoupling composition and thickness/deposition rate effects. Samples are classified into three distinct regimes: crystalline, mixed-mode, or X-ray amorphous. By deconvoluting and analyzing the interplay between composition and deposition rate, it is shown that growth kinetics can sufficiently alter phase formation to dominate compositionally driven mechanisms within a single material library. This observation is verified after heat-treatment to 750 °C on selected samples. Particularly within the mixed-mode regime, the relationship between solute content and deposition rate is quantified, thereby enabling the tailoring of materials libraries investigations of composition and growth rate effects. Overall, this work combines the expansive compositional space in a combinatorial library with sputtering science to identify microstructural and phase regime boundaries in the Fe-W system.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113881"},"PeriodicalIF":7.6,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716306","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
2H-MoS2 lubrication-enhanced MWCNT nanocomposite for subtle bio-motion piezoresistive detection with deep learning integration 2H-MoS2润滑增强MWCNT纳米复合材料用于精细生物运动压阻检测与深度学习集成
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-26 DOI: 10.1016/j.matdes.2025.113861
Ke-Yu Yao , Derek Ka-Hei Lai , Hyo-Jung Lim , Bryan Pak-Hei So , Andy Chi-Ho Chan , Patrick Yiu-Man Yip , Duo Wai-Chi Wong , Bingyang Dai , Xin Zhao , Siu Hong Dexter Wong , James Chung-Wai Cheung
{"title":"2H-MoS2 lubrication-enhanced MWCNT nanocomposite for subtle bio-motion piezoresistive detection with deep learning integration","authors":"Ke-Yu Yao ,&nbsp;Derek Ka-Hei Lai ,&nbsp;Hyo-Jung Lim ,&nbsp;Bryan Pak-Hei So ,&nbsp;Andy Chi-Ho Chan ,&nbsp;Patrick Yiu-Man Yip ,&nbsp;Duo Wai-Chi Wong ,&nbsp;Bingyang Dai ,&nbsp;Xin Zhao ,&nbsp;Siu Hong Dexter Wong ,&nbsp;James Chung-Wai Cheung","doi":"10.1016/j.matdes.2025.113861","DOIUrl":"10.1016/j.matdes.2025.113861","url":null,"abstract":"<div><div>Intelligent piezoresistive health monitoring systems integrate advanced nanocomposite architectures with precise algorithmic analysis for real-time physiological assessment. However, existing works often prioritize high sensitivity at the expense of strain tolerance and require complex fabrication procedures. Herein, we present an environmentally friendly, low-cost, and nonionic fabrication approach for a 2H-phase molybdenum disulfide (2H-MoS<sub>2</sub>)-enhanced multi-walled carbon nanotube (MWCNT) strain sensor, developed via a systematically optimized vacuum-assisted filtration process. This study is the first to validate the dual enhancement effect of MoS<sub>2</sub>, leveraging its shear-exfoliation properties to simultaneously improve strain gauge performance and mechanical robustness. The resulting nacre-like layered hybrid nanocomposite achieves a remarkable gauge factor of 675.7 (R<sup>2</sup>∼0.993) at low strain (∼0–4.5 %), representing a 3881.5 % improvement over pure MWCNT systems, alongside enhanced toughness (∼89.17 %) and strain tolerance (∼53.93 %). Meanwhile, the optimized composition ensures low rest-state resistance (∼13.1 Ω), minimal hysteresis (∼5.7 %), and robust durability over 5000 cycles at 10 % strain. As a result, the proposed sensor enables highly consistent, high-fidelity monitoring of various subtle-to-moderate biomotions. Integrated with a fine-tuned InceptionTime deep learning model, it achieves an F1-score of 98 % in classifying Dysphagia Diet Standardization Initiative (IDDSI)-standard swallowing activities, demonstrating its potential for AI-driven health monitoring applications.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113861"},"PeriodicalIF":7.6,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716303","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
Structural optimized mechanical metamaterial for multi transient high-g impact suppression and self-monitoring 多瞬态高g冲击抑制与自监测结构优化机械超材料
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-25 DOI: 10.1016/j.matdes.2025.113884
Kejia Zhang , Benqiang Yang , Zhisen Zhu, Juteng Fu, Xiangyu Han, Wenling Zhang, Keren Dai
{"title":"Structural optimized mechanical metamaterial for multi transient high-g impact suppression and self-monitoring","authors":"Kejia Zhang ,&nbsp;Benqiang Yang ,&nbsp;Zhisen Zhu,&nbsp;Juteng Fu,&nbsp;Xiangyu Han,&nbsp;Wenling Zhang,&nbsp;Keren Dai","doi":"10.1016/j.matdes.2025.113884","DOIUrl":"10.1016/j.matdes.2025.113884","url":null,"abstract":"<div><div>For extreme high-g mechanical impact of vehicle personnel and penetrating munition fuze, specific protections in terms of simultaneous high energy absorption performance, high recoverability and real-time alarming are urgent demands. Currently, Bistable symmetric curved beam structure (BCBS) mechanical metamaterial is promising route that can balance energy absorption performance and recoverability, but still remain the threat of excessive negative stiffness. Here, beyond BCBS metamaterial, we propose a novel mechanical metamaterial of elliptical sandwich curved beam structure (ESCBS), which utilize the stiffness complementarity of elliptical rings and curved beams. Besides, the ESCBS metamaterial has a self-filtering effect on the violently destructive high-frequency components of mechanical impacts due to its low natural frequency. Thus, the ESCBS metamaterial enhances the energy absorption performance (above 50 % decrease in impact peak) and recoverability(above 90 % structural integrity) under extreme strong mechanical impacts (up to 25000 <em>g</em>). Further, to realize self-monitoring and alarming, an endogenous triboelectric self-powered sensor is constituted inside the ESCBS metamaterial via polyurethane foam penetration without any space or energy cost. Thus, the proposed ESCBS metamaterial can serve as a representative metamaterial for safe and intelligent vehicle personnel helmets and fuze systems, and is expected to have a broad commercial application in future.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113884"},"PeriodicalIF":7.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716305","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
Quantifying delamination energy in tungsten on silicon thin films through nanoindentation and nanoscratch 通过纳米压痕和纳米划痕量化硅薄膜上钨的分层能
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-25 DOI: 10.1016/j.matdes.2025.113873
Shatha Almarri, Matthew Lloyd, Ed Darnbrough, David Armstrong
{"title":"Quantifying delamination energy in tungsten on silicon thin films through nanoindentation and nanoscratch","authors":"Shatha Almarri,&nbsp;Matthew Lloyd,&nbsp;Ed Darnbrough,&nbsp;David Armstrong","doi":"10.1016/j.matdes.2025.113873","DOIUrl":"10.1016/j.matdes.2025.113873","url":null,"abstract":"<div><div>Quantifying delamination energy is crucial for the reliability and longevity of thin films. In this work, the delamination energy in tungsten-silicon thin films is investigated through nanoindentation and nanoscratching. Nanoindentation was also employed to assess the mechanical properties of the coating through the use of substrate corrections. Energy methods were used to analyse the nanoindentation load displacement curves to quantify the delamination energy. Finite element modelling was used to further improve the accuracy of the calculated delamination energy. Nanoscratching was found to be highly sensitive to the scratch parameters used, and the effect of scratch parameters on the critical load and delamination energy was investigated. It was found that the presence of fragmentation event in nanoscratching led to higher delamination energy values as compared to nanoindentation. Nanoindentation was found to output values closer to that of literature and were additionally not parameter sensitive, making it a reliable method of evaluating thin film adhesion.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113873"},"PeriodicalIF":7.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705765","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
Tannic acid coated core-shell fibers with antibacterial and antioxidant properties for diabetic wound healing 单宁酸包覆核壳纤维用于糖尿病伤口愈合的抗菌和抗氧化性能
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-25 DOI: 10.1016/j.matdes.2025.113874
Zouwei Li , Qi Guo , Renxin Chen , Yan E , Yezheng Wang, Mengyue Zhu, Guang Shi, Zhuowen Hao, Jingfeng Li, Shaobo Zhu
{"title":"Tannic acid coated core-shell fibers with antibacterial and antioxidant properties for diabetic wound healing","authors":"Zouwei Li ,&nbsp;Qi Guo ,&nbsp;Renxin Chen ,&nbsp;Yan E ,&nbsp;Yezheng Wang,&nbsp;Mengyue Zhu,&nbsp;Guang Shi,&nbsp;Zhuowen Hao,&nbsp;Jingfeng Li,&nbsp;Shaobo Zhu","doi":"10.1016/j.matdes.2025.113874","DOIUrl":"10.1016/j.matdes.2025.113874","url":null,"abstract":"<div><div>Diabetic wounds are exacerbated by a local high-sugar environment, leading to vascular and nerve damage, impaired angiogenesis, reduced collagen deposition, and increased inflammation and oxidative stress, ultimately halting the healing process. With the rising prevalence of diabetes, the number of patients with diabetic wounds is also increasing. In this context, a novel fiber dressing for diabetic wounds has been developed using coaxial electrospinning combined with self-assembly coating technology. The uniform distribution of the TA (tannic acid) coating enhances the mechanical properties, hydrophilicity, and cell adhesion of PLGA-PCL core–shell fibers while imparting anti-inflammatory, antibacterial, and antioxidant capabilities. The drug Cur (curcumin), loaded in the core layer of the coaxial electrospun fibers, promotes angiogenesis, collagen deposition, and cellular anti-senescence capacity, while the shell layer facilitates drug encapsulation and sustained release. In vivo experiments, the electrospun fibers serve as an active skin substitute, creating a favorable microenvironment for diabetic wound healing. Overall, TA-coated PLGA-PCL core–shell fibers show great potential as wound dressings for diabetic wound repair.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113874"},"PeriodicalIF":7.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716299","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
Experimental and mechanistic investigation of the residual stress in SiCP/Al composites at the multi scale SiCP/Al复合材料多尺度残余应力的实验与机理研究
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-25 DOI: 10.1016/j.matdes.2025.113888
Jiaqi Li , Weiguang Zhang , Xueping Zhao , Fengchao Lang , Yongming Xing
{"title":"Experimental and mechanistic investigation of the residual stress in SiCP/Al composites at the multi scale","authors":"Jiaqi Li ,&nbsp;Weiguang Zhang ,&nbsp;Xueping Zhao ,&nbsp;Fengchao Lang ,&nbsp;Yongming Xing","doi":"10.1016/j.matdes.2025.113888","DOIUrl":"10.1016/j.matdes.2025.113888","url":null,"abstract":"<div><div>Silicon carbide particle-reinforced aluminum matrix composites (SiC<sub>P</sub>/Al) represent a novel structural material. The performance differences between the SiC particles and the Al matrix result in a non-uniform distribution of residual stresses within the composite, which significantly affecting its mechanical properties. This study characterizes the residual stress distribution patterns within the SiC particles at the micron-scale using micro-Raman spectroscopy and transmission electron microscopy (TEM). It also analyzes the fracture behavior of these particles, considering the influence of residual stresses, through a combination of geometric phase analysis (GPA) and the Yoffe model. The interior of SiC particle experiences residual tensile stress, whereas the interface region is under compressive stress. Additionally, irregular SiC particle shapes contribute to fluctuations in residual stress. The fracture behavior is primarily influenced by a combination of factors, including residual stresses arising from thermal mismatch and externally induced loads. TEM observations confirm the presence of Mg-Si IMC at the interface of the composite material. These compounds form a coherent interface with both the Al matrix and SiC phase enhancing interfacial properties. A high dislocation density in the microstrain regions adjacent to the coherent interface is identified as the main contributor to residual stress at the interface of composite material.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113888"},"PeriodicalIF":7.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716307","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
Understanding the effect of annealing temperature on Hot-Rolled pure Mo Sheet: Investigations from Texture, deformation Behavior, and mechanical properties 了解退火温度对热轧纯钼板的影响:从织构、变形行为和力学性能的研究
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-25 DOI: 10.1016/j.matdes.2025.113889
Wenbin Liu, Yanchao Li, Wen Zhang, Xuanqiao Gao, Baojian Wang, Xin Zhang, Yichao Yang, Xiaohui Lin, Jianfeng Li, Hailong Xu
{"title":"Understanding the effect of annealing temperature on Hot-Rolled pure Mo Sheet: Investigations from Texture, deformation Behavior, and mechanical properties","authors":"Wenbin Liu,&nbsp;Yanchao Li,&nbsp;Wen Zhang,&nbsp;Xuanqiao Gao,&nbsp;Baojian Wang,&nbsp;Xin Zhang,&nbsp;Yichao Yang,&nbsp;Xiaohui Lin,&nbsp;Jianfeng Li,&nbsp;Hailong Xu","doi":"10.1016/j.matdes.2025.113889","DOIUrl":"10.1016/j.matdes.2025.113889","url":null,"abstract":"<div><div>This study investigates the effects of annealing temperature on the microstructural evolution, texture development, deformation behavior, and mechanical properties of hot-rolled pure Molybdenum (Mo) sheets. A comprehensive analysis was conducted through the combination of experimental techniques and molecular dynamics (MD) simulations to examine specimens annealed at temperatures ranging from 1000 K to 1600 K. The microstructural characterization revealed a progressive transformation from elongated grains to more equiaxed structures with increasing annealing temperature. The electron backscatter diffraction (EBSD) analysis demonstrated significant texture evolution, with the &lt; 100&gt;//ND and &lt; 110&gt;//RD fiber texture showing remarkable temperature dependence. The MD simulations provided atomic-level insights into the orientation-dependent deformation mechanisms and dislocation evolution. Annealing at 1300 K optimized the mechanical properties, achieving a desirable synergy between strength (900 MPa) and ductility (22 %). This study provides valuable insights into the processing-structure–property relationships in hot-rolled Mo sheets, offering guidance for tailoring their properties for nuclear reactor applications.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113889"},"PeriodicalIF":7.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724433","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
Silver nanoparticle-assembled guided bone regeneration membranes showcase dual functions: Initial bacterial elimination and subsequent immune regulation 银纳米颗粒组装引导骨再生膜显示双重功能:最初的细菌消除和随后的免疫调节
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-25 DOI: 10.1016/j.matdes.2025.113882
Yu Guo , Xin Li , Qian Zhang , Yanjun Yu , Zihan Shi , Zheng Zheng , Siyang Yu , Zhirui Guo , Yang Xia , Yan Xu
{"title":"Silver nanoparticle-assembled guided bone regeneration membranes showcase dual functions: Initial bacterial elimination and subsequent immune regulation","authors":"Yu Guo ,&nbsp;Xin Li ,&nbsp;Qian Zhang ,&nbsp;Yanjun Yu ,&nbsp;Zihan Shi ,&nbsp;Zheng Zheng ,&nbsp;Siyang Yu ,&nbsp;Zhirui Guo ,&nbsp;Yang Xia ,&nbsp;Yan Xu","doi":"10.1016/j.matdes.2025.113882","DOIUrl":"10.1016/j.matdes.2025.113882","url":null,"abstract":"<div><div>Silver nanoparticles (AgNPs) exhibit excellent antibacterial effects at higher concentrations, and exert proper immunoregulatory effects in bone regeneration at lower concentrations. An ideal guided bone regeneration (GBR) membrane should inhibit bacterial infection initially and regulate immune cells subsequently to achieve desired bone repair. In this study, the polycaprolactone (PCL) membranes were coated with AgNPs via triple layer-by-layer (LbL) self-assembly (hereafter referred as “PCL-3Ag”). The fabrication process successfully endowed the PCL-3Ag membranes with excellent antibacterial activities and anti-inflammatory effects due to the abundant release of Ag initially, and promoted lipopolysaccharide stimulated macrophages polarization to M2 phenotype due to the slower and steady release of Ag in the subsequent stage. The regulation of PCL-3Ag on macrophages promoted the osteogenic differentiation of rat bone mesenchymal stem cells <em>in vitro</em>. <em>In vivo</em>, superior bone regeneration with decreased number of CD86-positive cells and increased number of CD163-positive cells was observed in rat calvaria defects covered with PCL-3Ag membranes compared with defects covered with PCL membranes or uncovered defects. Overall, the LbL self-assembled antibacterial, anti-inflammatory, and immunoregulatory PCL-3Ag membrane presented here enhances tissue repair and shows excellent potential for application to bone tissue engineering.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113882"},"PeriodicalIF":7.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716300","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
Conformal gradient-index phononic crystal lenses: Design, theory, and application on non-planar structures 共形梯度折射率声子晶体透镜:设计、理论及在非平面结构上的应用
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-24 DOI: 10.1016/j.matdes.2025.113854
Hrishikesh Danawe, Serife Tol
{"title":"Conformal gradient-index phononic crystal lenses: Design, theory, and application on non-planar structures","authors":"Hrishikesh Danawe,&nbsp;Serife Tol","doi":"10.1016/j.matdes.2025.113854","DOIUrl":"10.1016/j.matdes.2025.113854","url":null,"abstract":"<div><div>Gradient index phononic crystal (GRIN-PC) lenses have been widely recognized for their effectiveness in focusing or localizing elastic waves at specific target locations. This wave-focusing capability enhances the energy-harvesting performance of piezoelectric transducers and improves defect detection sensitivity in non-destructive evaluation (NDE) applications. While GRIN-PC lenses have been extensively studied for planar structures, their application to curved geometries remains limited, primarily due to the lack of a comprehensive theoretical framework for understanding wave behavior in non-planar phononic crystal structures. In this work, we develop a conformal GRIN-PC theory to analyze elastic wave focusing in curved structures and propose a systematic design framework for implementing GRIN-PC lenses on non-planar surfaces. The proposed theory models wave propagation within conformal GRIN-PC lenses using ray trajectory analysis, accurately predicting the focal region. We validate this framework through numerical simulations of a conformal GRIN-PC lens applied to a steel pipe and demonstrate its accuracy in predicting focal points. Furthermore, the design framework is applied to fabricate a 3D-printed conical GRIN-PC lens, with numerical simulations and experimental results confirming its wave-focusing performance. This work establishes a foundation for expanding GRIN-PC applications to non-planar structural components widely found in mechanical, aerospace, and civil engineering structures.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113854"},"PeriodicalIF":7.6,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696963","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
Uncertainty quantification of thermal barrier coatings lifetime on rotating turbine blades considering chemo-thermo-mechanically coupling failure 考虑化学-热-机械耦合失效的旋转涡轮叶片热障涂层寿命的不确定量化
IF 7.6 2区 材料科学
Materials & Design Pub Date : 2025-03-24 DOI: 10.1016/j.matdes.2025.113878
Weiliang Yan, Cong Li, Qianqian Zhou, Yuqi Xie, Yu Sun, Li Yang, Yichun Zhou
{"title":"Uncertainty quantification of thermal barrier coatings lifetime on rotating turbine blades considering chemo-thermo-mechanically coupling failure","authors":"Weiliang Yan,&nbsp;Cong Li,&nbsp;Qianqian Zhou,&nbsp;Yuqi Xie,&nbsp;Yu Sun,&nbsp;Li Yang,&nbsp;Yichun Zhou","doi":"10.1016/j.matdes.2025.113878","DOIUrl":"10.1016/j.matdes.2025.113878","url":null,"abstract":"<div><div>The lifetime prediction of thermal barrier coatings (TBCs) on rotating turbine blades remains a significant challenge due to the complex service environment and multi-physics failure mechanisms. A computationally efficient multiscale uncertainty quantification model based on an adaptive Gaussian Process was developed. The model accounts for the coupled effects of thermal mismatch, interface oxidation, and creep at the microscale, while considering the interaction of gas thermal shock and high-speed rotation at the macroscale. The model was applied to quantify the uncertainty in damage evolution and service lifetime of TBCs on rotating turbine blades. Meantime, the key factors influencing TBCs failure are also analyzed. The prediction results revealed that after 600 cycles, the failure probability of TBCs on the suction side tip and the pressure side middle region of the rotating blade reached 80 %. This indicates that the spallation of TBCs has occurred in these regions, with an area of about 9 %. The spallation position and area of the experimental results are relatively consistent with the predicted results. The thermal expansion coefficient of the thermally grown oxide and temperature were identified as the most critical factors influencing TBCs lifetime.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113878"},"PeriodicalIF":7.6,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705766","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
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