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Functionally graded sustainable lattice structures: Insights into material grading and lattice hybridization 功能分级可持续晶格结构：材料分级和晶格杂化的启示
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-12 DOI: 10.1016/j.matlet.2024.137713
Dhinakaran Veeman, Hrishikesh Dutta, Murugan Vellaisamy, Kanishkaa Jeevaraj
{"title":"Functionally graded sustainable lattice structures: Insights into material grading and lattice hybridization","authors":"Dhinakaran Veeman,&nbsp;Hrishikesh Dutta,&nbsp;Murugan Vellaisamy,&nbsp;Kanishkaa Jeevaraj","doi":"10.1016/j.matlet.2024.137713","DOIUrl":"10.1016/j.matlet.2024.137713","url":null,"abstract":"<div><div>This novel work presents the investigation of functionally graded lattice structures (FGLS) based on polylactic acid (PLA) and wood-reinforced PLA (WPLA) composite. The synergistic effect of a multi-material system and hybridization of two different primitive lattices (Gyroid and Schwarz primitive (SP)) on compressive strength, specific energy absorption (SEA) and stiffness was studied. The findings of the study revealed that the hybrid FGLS fabricated combining the Gyroid lattice of PLA and SP lattice of WPLA (PLA-G/WPLA-SP) exhibits the highest values of stiffness, SEA, and compressive strength.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137713"},"PeriodicalIF":2.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Doped germanene as anchoring material for lithium polysulfides for Li-S batteries: A DFT study 掺杂锗烯作为锂多硫化物的锚定材料用于锂-S 电池：DFT 研究
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-12 DOI: 10.1016/j.matlet.2024.137715
Sergio L. Rosas , Brandom J. Cid , José E. Santana , Alma R. Heredia , Ivonne J. Hernández-Hernández , Álvaro Miranda
{"title":"Doped germanene as anchoring material for lithium polysulfides for Li-S batteries: A DFT study","authors":"Sergio L. Rosas ,&nbsp;Brandom J. Cid ,&nbsp;José E. Santana ,&nbsp;Alma R. Heredia ,&nbsp;Ivonne J. Hernández-Hernández ,&nbsp;Álvaro Miranda","doi":"10.1016/j.matlet.2024.137715","DOIUrl":"10.1016/j.matlet.2024.137715","url":null,"abstract":"<div><div>Lithium-sulfur batteries face significant challenges due to the dissolution of lithium polysulfides (LiPSs), commonly known as the shuttle effect, which leads to a loss in charge capacity. This study uses density functional theory (DFT) calculations, with van der Waals corrections, to investigate the polysulfide anchoring potential of a boron-doped germanene monolayer (B-2DGe). The results show that the adsorption energies of LiPSs on B-2DGe range from 1.46 to 3.39 eV. Furthermore, all LiPSs on B-2DGe exhibit conductive behavior. These findings suggest that B-2DGe, as a LiPS substrate, reduces the shuttle effect and prevents polysulfide agglomeration at electrodes, improving the performance of Li-S batteries.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137715"},"PeriodicalIF":2.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Tool wear and surface characteristics of TiAlN/AlCrN insert in high-speed turning of bimetal aluminium alloy-grey cast iron engine block 高速车削双金属铝合金-灰铸铁发动机缸体时 TiAlN/AlCrN 刀片的刀具磨损和表面特性
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-12 DOI: 10.1016/j.matlet.2024.137714
Rahmat Agung Budi Santoso , Deendarlianto , Muhammad Akhsin Muflikhun
{"title":"Tool wear and surface characteristics of TiAlN/AlCrN insert in high-speed turning of bimetal aluminium alloy-grey cast iron engine block","authors":"Rahmat Agung Budi Santoso ,&nbsp;Deendarlianto ,&nbsp;Muhammad Akhsin Muflikhun","doi":"10.1016/j.matlet.2024.137714","DOIUrl":"10.1016/j.matlet.2024.137714","url":null,"abstract":"<div><div>This study investigates the tool wear and surface characteristics of TiAlN/AlCrN-coated inserts during high-speed turning of aluminium alloy and grey cast iron (GCI) in engine blocks. Cutting performance was evaluated at a constant speed of 1,130.4 m/min and a feed rate of 0.18 mm/rev over 300 shots (the number of intermittent cuts). SEM-EDX and roughness analysis revealed abrasion and adhesion as the main wear mechanisms, with a maximum flank wear of 1.14 mm, primarily due to GCI’s abrasive nature. Surface roughness measurements for aluminium HD2 and GCI were 7.09 µm and 9.15 µm, respectively. The results highlight the effectiveness of TiAlN/AlCrN coatings but show eventual breakdown under GCI, offering insights for improving tool design in bimetal machining.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137714"},"PeriodicalIF":2.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Feasibility of AlCoCu decagonal quasicrystalline coatings obtained by High-Velocity oxygen fuel (HVOF) 通过高速氧气燃料 (HVOF) 获得铝钴铜十边形准晶涂层的可行性
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-12 DOI: 10.1016/j.matlet.2024.137711
F.W.E.L.A. Júnior, B.A.S.G. Lima, D.G.L. Cavalcante, T.P.S. Barros, R.E. Caluête, F.R. Feitosa
{"title":"Feasibility of AlCoCu decagonal quasicrystalline coatings obtained by High-Velocity oxygen fuel (HVOF)","authors":"F.W.E.L.A. Júnior,&nbsp;B.A.S.G. Lima,&nbsp;D.G.L. Cavalcante,&nbsp;T.P.S. Barros,&nbsp;R.E. Caluête,&nbsp;F.R. Feitosa","doi":"10.1016/j.matlet.2024.137711","DOIUrl":"10.1016/j.matlet.2024.137711","url":null,"abstract":"<div><div>Metallic coatings sprayed on ductile substrates play a crucial role in various industries by enhancing tribological properties and extending component durability, particularly in the automotive and aerospace sectors. Quasicrystalline coatings are notable for improving mechanical strength, wear resistance, and corrosion resistance. This study focuses on decagonal-symmetry quasicrystalline coatings produced from Al<sub>65</sub>Co<sub>18</sub>Cu<sub>17</sub> powder using high-velocity oxygen fuel (HVOF) thermal spraying. The main objective was to achieve a coating predominantly composed of the decagonal-D quasicrystalline phase, as icosahedral-phase quasicrystals often decompose during thermal processing, necessitating costly additional treatments. The results showed that the coatings were mainly composed of the decagonal-D phase, with minor traces of m-Al<sub>13</sub>Co<sub>4</sub> and B2-Al(Co,Cu) phases, eliminating the need for post-spray treatments. This advancement enhances cost-effectiveness and efficiency while maintaining the desirable properties of quasicrystals, such as high hardness and wear and corrosion resistance. The research concludes that AlCoCu (D) coatings are promising for harsh environments, offering a viable and high-performance alternative for industrial protection.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137711"},"PeriodicalIF":2.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Sn content on the performance of Nb3Sn superconducting radio-frequency cavities 锡含量对 Nb3Sn 超导射频空腔性能的影响
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-12 DOI: 10.1016/j.matlet.2024.137710
Weimin Pan , Peng Sha , Feisi He , Zhenghui Mi , Baiqi Liu , Song Jin , Chao Dong , Jiyuan Zhai , Lingxi Ye , Jinxin Yu
{"title":"Effect of Sn content on the performance of Nb3Sn superconducting radio-frequency cavities","authors":"Weimin Pan ,&nbsp;Peng Sha ,&nbsp;Feisi He ,&nbsp;Zhenghui Mi ,&nbsp;Baiqi Liu ,&nbsp;Song Jin ,&nbsp;Chao Dong ,&nbsp;Jiyuan Zhai ,&nbsp;Lingxi Ye ,&nbsp;Jinxin Yu","doi":"10.1016/j.matlet.2024.137710","DOIUrl":"10.1016/j.matlet.2024.137710","url":null,"abstract":"<div><div>Research of Nb<sub>3</sub>Sn superconducting radio-frequency (SRF) cavities was carried out at the Institute of High Energy Physics Chinese Academy of Sciences (IHEP), in order to improve the intrinsic quality factor (<em>Q</em><sub>0</sub>) and accelerating gradient (<em>E</em><sub>acc</sub>). Various recipes of coating were attempted at SRF cavities and samples made of Nb, which resulted in different Sn content. It was found that the Sn content, namely the ratio of Nb/Sn, had great influences on the performance of Nb<sub>3</sub>Sn SRF cavities. When the ratio of Nb/Sn was slightly higher than 3, the Nb<sub>3</sub>Sn SRF cavities showed the best performance during the vertical test. <em>Q</em><sub>0</sub> of 1.3 GHz 1-cell Nb<sub>3</sub>Sn SRF cavity (the ratio of Nb/Sn ≈ 3.16) reached 3.0 × 10<sup>10</sup> (@ 4.2 K) and 1.0 × 10<sup>11</sup> (@ 2.0 K) at low RF field. This study could provide insights on the effects of Sn content on the performance of Nb<sub>3</sub>Sn SRF cavities, which be referenced by the SRF community.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137710"},"PeriodicalIF":2.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
On cleavage crack morphology in some rock materials of different genesis 论不同成因岩石材料中的劈裂裂纹形态
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-10 DOI: 10.1016/j.matlet.2024.137702
Peter Panfilov , Maxim Mezhenov , Alexandra Kuklina , Jinming Guo , Dmitry Zaytsev
{"title":"On cleavage crack morphology in some rock materials of different genesis","authors":"Peter Panfilov ,&nbsp;Maxim Mezhenov ,&nbsp;Alexandra Kuklina ,&nbsp;Jinming Guo ,&nbsp;Dmitry Zaytsev","doi":"10.1016/j.matlet.2024.137702","DOIUrl":"10.1016/j.matlet.2024.137702","url":null,"abstract":"<div><div>Fracture of rocks and biominerals on the microscopic scale under bending was examined. Eggs of some birds were used in the study because an eggshell is biomineral consisted of 90% of calcium carbonate of the biological genesis. Cracking in the model materials was studied in optical microscopes including in situ bending of eggshell samples. It was shown that despite brittle deformation behavior on the macroscopic scale and brittle transgranular fracture as fracture mode, the morphology of cracking of model materials looks like cracks in the neck of aluminum under tension.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137702"},"PeriodicalIF":2.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Synthesis of multi-peak emitting carbon dots using phenylenediamine isomers 利用苯二胺异构体合成多峰发光碳点
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-10 DOI: 10.1016/j.matlet.2024.137693
Baohui Li , Tao Song , Fang Cheng , Lingling Ren , Zhili Jia , Lingyu Song , Chen Pu
{"title":"Synthesis of multi-peak emitting carbon dots using phenylenediamine isomers","authors":"Baohui Li ,&nbsp;Tao Song ,&nbsp;Fang Cheng ,&nbsp;Lingling Ren ,&nbsp;Zhili Jia ,&nbsp;Lingyu Song ,&nbsp;Chen Pu","doi":"10.1016/j.matlet.2024.137693","DOIUrl":"10.1016/j.matlet.2024.137693","url":null,"abstract":"<div><div>Revealing the relationship between structure and optical properties of multi-peak emissive carbon dots (CDs) is important. Three types of multi-peak emission CDs were synthesized by one-step hydrothermal method with phenylenediamine (PD) isomers (o/m/p) and maleic anhydride serving as precursors. During the synthesis process, three PDs exhibited different microstructural and chemical states, resulting in various fluorescence emission centers. The multi-peak emission behavior of o-CDs and m-CDs is composed of molecular fluorophores and carbon core states, while that of p-CDs consists of surface states and carbon core states. These different fluorescence centers lead to diverse fluorescence behaviors of the CDs in different solvents and environments. This work inspires the clarification of the relationship between the structural and optical properties of multi-peak emissive CDs.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137693"},"PeriodicalIF":2.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Dynamic mechanical analysis of additively manufactured continuous Kevlar fiber-reinforced nylon composites across variable fiber orientations 对连续凯夫拉纤维增强尼龙复合材料不同纤维取向的加成制造动态力学分析
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-10 DOI: 10.1016/j.matlet.2024.137704
Dushyant Dubey , Soumya Chowdhury , Vikas Khatkar , Satinder Paul Singh , Bijoya Kumar Behera
{"title":"Dynamic mechanical analysis of additively manufactured continuous Kevlar fiber-reinforced nylon composites across variable fiber orientations","authors":"Dushyant Dubey ,&nbsp;Soumya Chowdhury ,&nbsp;Vikas Khatkar ,&nbsp;Satinder Paul Singh ,&nbsp;Bijoya Kumar Behera","doi":"10.1016/j.matlet.2024.137704","DOIUrl":"10.1016/j.matlet.2024.137704","url":null,"abstract":"<div><div>This study examines the dynamic mechanical properties of composites made via continuous filament fabrication, an additive manufacturing (AM) technique. Four Nylon/Kevlar samples with varying fiber orientations were produced, each with a 0.1 mm layer height and 3 mm total thickness, resulting in a fiber volume fraction of 15.71 % to 18.44 %. Dynamic mechanical analysis (DMA) was used to assess viscoelastic behavior, focusing on storage modulus, loss modulus, and damping factor (tan delta). The specimen F_NK1 exhibited the highest initial storage modulus, with gradual stiffness loss at higher settling temperatures (Ts), while F_NK2 showed a steeper decline, and F_NK3 and F_NK4 had lower initial moduli and greater temperature sensitivity.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137704"},"PeriodicalIF":2.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effects of melt-pool geometry on grain structure evolution in multilayer laser metal deposition of a single-crystal superalloy 熔池几何形状对单晶超合金多层激光金属沉积过程中晶粒结构演变的影响
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-10 DOI: 10.1016/j.matlet.2024.137705
Jingyi Zhang , Peiyu Zhang , Wenqian Zhang , Shili Tan , Xin Zhou
{"title":"Effects of melt-pool geometry on grain structure evolution in multilayer laser metal deposition of a single-crystal superalloy","authors":"Jingyi Zhang ,&nbsp;Peiyu Zhang ,&nbsp;Wenqian Zhang ,&nbsp;Shili Tan ,&nbsp;Xin Zhou","doi":"10.1016/j.matlet.2024.137705","DOIUrl":"10.1016/j.matlet.2024.137705","url":null,"abstract":"<div><div>The effects of melt-pool geometry on grain structure evolution in the multilayer laser metal deposition of a single-crystal superalloy are analyzed. The spatiotemporal variations in geometrical features not only affect the grain growth patterns in each layer but also lead to different overlapping behaviors and resultant substrate conditions. The initial melt pool with a large depth-to-height ratio generally contributes to sustaining the continual epitaxial growth; otherwise, a triangle-shaped columnar region with grain orientation alternatively changed can be formed.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137705"},"PeriodicalIF":2.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effective strategies for improving quenched microstructure and mechanical properties of hot-rolled seamless steel pipes 改善热轧无缝钢管淬火微观结构和机械性能的有效策略
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2024-11-10 DOI: 10.1016/j.matlet.2024.137707
Chao Wang , Xin Wang , Bo Fu , Yanfa Han , Guo Yuan
{"title":"Effective strategies for improving quenched microstructure and mechanical properties of hot-rolled seamless steel pipes","authors":"Chao Wang ,&nbsp;Xin Wang ,&nbsp;Bo Fu ,&nbsp;Yanfa Han ,&nbsp;Guo Yuan","doi":"10.1016/j.matlet.2024.137707","DOIUrl":"10.1016/j.matlet.2024.137707","url":null,"abstract":"<div><div>The containing Ti-Mg-Ca-O composite particles were innovatively used to achieve microstructure refinement and properties improvement of hot-rolled seamless steel pipes, and compared with conventional steel (C# steel). The results show that the C# steel mainly consisted of parallel lath martensite after on-line quenching. Under the same rolling and heat treatment conditions, dominant Ti-Mg-Ca-O composite particles in modified steel (M# steel) were effective nucleation sites of acicular ferrite, dividing the prior austenite grains and refining microstructures. The strength values of the both steels were at the same level, however, the impact energy of M# steel was significantly higher than C# steel, increasing by 28%. This study provides an effective method for further microstructure refinement of hot-rolled seamless steel tubes.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137707"},"PeriodicalIF":2.7,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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