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Grape-liked Si@Na2SiO3 composites for stable lithium storage though a metal salt-assisted chemical etching approach
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-15 DOI: 10.1016/j.matlet.2025.138586
Zengmou Li , Xiaoling Liu , Qianwen Wang, Xinyu Jiang, Rui Yan, Keyu Zhang, Yaochun Yao, Shaoze Zhang, Yin Li, Junxian Hu
{"title":"Grape-liked Si@Na2SiO3 composites for stable lithium storage though a metal salt-assisted chemical etching approach","authors":"Zengmou Li ,&nbsp;Xiaoling Liu ,&nbsp;Qianwen Wang,&nbsp;Xinyu Jiang,&nbsp;Rui Yan,&nbsp;Keyu Zhang,&nbsp;Yaochun Yao,&nbsp;Shaoze Zhang,&nbsp;Yin Li,&nbsp;Junxian Hu","doi":"10.1016/j.matlet.2025.138586","DOIUrl":"10.1016/j.matlet.2025.138586","url":null,"abstract":"<div><div>Serious volume expansion for silicon-based material has extremely restricted its widespread application. Herein, Si@Na<sub>2</sub>SiO<sub>3</sub> composite with grape-liked structure was fabricated by a simple metal salt-assisted chemical etching method, which is enabled by the high corrosivity of NaHCO<sub>3</sub>. The gelatinous Na<sub>2</sub>SiO<sub>3</sub> can evenly coat the surface of Si nanoparticles, then efficiently inhibiting volume expansion. Meanwhile, porous structures etched by NaHCO<sub>3</sub> provide more diffusion channels for Li<sup>+</sup>. Si@Na<sub>2</sub>SiO<sub>3</sub> exhibits excellent cycling and rate properties: the discharge capacity of 1140.16mAh g<sup>−1</sup> at 0.5 A g<sup>-1</sup>after 100th cycling and the stable discharge capacity of 1565.64 mAh g<sup>−1</sup> at 2.0 A g<sup>−1</sup>. This research provides a simple and effective technology to exploit the high-capacity silicon-based anode material.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138586"},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844002","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
Synergistic effects of hybrid fibers and elevated temperature on strength and phase assemblage of granite Waste-Based geopolymer composites
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-15 DOI: 10.1016/j.matlet.2025.138583
Ahmed Babeker Elhag , Nejib Ghazouani , Mohamed Hechmi El Ouni , Ali Raza
{"title":"Synergistic effects of hybrid fibers and elevated temperature on strength and phase assemblage of granite Waste-Based geopolymer composites","authors":"Ahmed Babeker Elhag ,&nbsp;Nejib Ghazouani ,&nbsp;Mohamed Hechmi El Ouni ,&nbsp;Ali Raza","doi":"10.1016/j.matlet.2025.138583","DOIUrl":"10.1016/j.matlet.2025.138583","url":null,"abstract":"<div><div>This study investigates the synergistic effects of hybrid fibers and elevated temperatures on the mechanical performance and phase behavior of granite waste-based geopolymer composites (GC). The influence of 1 % polyethylene fiber (PF) and 0.5 % Kevlar fiber (KF) on strength and thermal resistance was evaluated through compressive and flexural tests at ambient and elevated temperatures (250 °C, 500 °C, 1000 °C). Microstructural characterization was conducted using SEM, EDS, and XRD. Thermal curing at 100 °C for 12 h yielded optimal strength retention, with compressive strength increasing by up to 184.3 % at 500 °C. KF-reinforced composites exhibited superior thermal stability, retaining 180.38 % of their initial strength at 1000 °C. SEM and EDS analyses revealed structural modifications after heating, while XRD confirmed the transformation of crystalline phases into amorphous forms, contributing to enhanced strength. Si/Al ratios indicated the formation of silica-rich aluminosilicate gels, improving thermal stability.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138583"},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839260","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
Remarkable increase in heat resistance of precipitation structure in 2219 alloy via preferable segregation of alloying elements at semicoherent θ′/(Al) interface 通过合金元素在半相干θ′/（Al）界面的优先偏析，显著提高 2219 合金沉淀结构的耐热性能
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-15 DOI: 10.1016/j.matlet.2025.138584
T.K. Akopyan , A.A. Lukyanchuk , N.V. Letyagin , F.O. Milovich , I.S. Solovev
{"title":"Remarkable increase in heat resistance of precipitation structure in 2219 alloy via preferable segregation of alloying elements at semicoherent θ′/(Al) interface","authors":"T.K. Akopyan ,&nbsp;A.A. Lukyanchuk ,&nbsp;N.V. Letyagin ,&nbsp;F.O. Milovich ,&nbsp;I.S. Solovev","doi":"10.1016/j.matlet.2025.138584","DOIUrl":"10.1016/j.matlet.2025.138584","url":null,"abstract":"<div><div>Heat treatment route of the wrought sheet 2219 alloy including aging at 250 °C and stabilizing annealing at 300 °C/100 h delivered a hardness of 93–95 HV. Analysis of the precipitation structure revealed the formation of faceted θ′ phase crystals with a length of 0.5–1.0 µm, a thickness of 10–25 nm and a width of up to 300 nm for individual crystals. Quantitative analysis using atomic probe tomography revealed a particularly high tendency for segregation of Mn, Zr and Si atoms at the semicoherent θ′/(Al) interface, the maximum concentration of some of those elements being three to ten times that in the core of θ′.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138584"},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833749","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
Structural and magnetic properties of HoFeCuGe4O12 with a metamagnetic transition behavior
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-15 DOI: 10.1016/j.matlet.2025.138585
Diming Xu , Zhibo Liu , Xiao Li , Maxim Avdeev , Ke-Hong Zhou , Jun Li , KarBan Tan , Tao Zhou , Di Zhou
{"title":"Structural and magnetic properties of HoFeCuGe4O12 with a metamagnetic transition behavior","authors":"Diming Xu ,&nbsp;Zhibo Liu ,&nbsp;Xiao Li ,&nbsp;Maxim Avdeev ,&nbsp;Ke-Hong Zhou ,&nbsp;Jun Li ,&nbsp;KarBan Tan ,&nbsp;Tao Zhou ,&nbsp;Di Zhou","doi":"10.1016/j.matlet.2025.138585","DOIUrl":"10.1016/j.matlet.2025.138585","url":null,"abstract":"<div><div>Metamagnetic materials exhibits great potential in applications such as magnetocaloric and colossal-magnetoresistance devices. This paper presents a structure and metamagnetic behavior study on HoFeCuGe<sub>4</sub>O<sub>12</sub>. Field-dependent susceptibility clarifies the antiferromagnetic (AFM) nature and the magnetization to magnetic field curve identifies the existence of metamagnetic behavior at ∼2 T. Structural studies, including X-ray diffraction, neutron diffraction and high-resolution transmission electron microscopy, reveals the magnetic structure to be an axial A-type AFM and the importance of cation anisotropy in metamagnetic behavior. The results provide an insight into manipulating metamagnetic transitions by cation anisotropy and structure characteristic.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138585"},"PeriodicalIF":2.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843997","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
Characterization of alkali and silane treated ramie yarn fibers as sustainable reinforcement for polymer composite
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-14 DOI: 10.1016/j.matlet.2025.138577
Lilis Safitri , Sutikno , Putu Suwarta , Doty Dewi Risanti
{"title":"Characterization of alkali and silane treated ramie yarn fibers as sustainable reinforcement for polymer composite","authors":"Lilis Safitri ,&nbsp;Sutikno ,&nbsp;Putu Suwarta ,&nbsp;Doty Dewi Risanti","doi":"10.1016/j.matlet.2025.138577","DOIUrl":"10.1016/j.matlet.2025.138577","url":null,"abstract":"<div><div>The effect of alkali, silane, and combined treatments has been evaluated to enhance the mechanical and thermal properties of ramie yarn fiber. The fibers were treated with 5 % sodium hydroxide (NaOH) and 3-(Aminopropyl) trimethoxy silane (APTES) at 1 % and 3 % concentrations. Combined treatments enhanced fiber hydrophobicity, achieving a contact angle of 80.02°, and XRD analysis confirmed crystallinity increased to 96,26 % and interfacial shear strength improved to 5.05 MPa, contributing to stiffer and more durable. FTIR analysis revealed the effectiveness of this treatment in breaking lignin and hemicellulose bonds, demonstrating ramie potential for sustainable reinforcement in material composite filament 3D printing.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138577"},"PeriodicalIF":2.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855696","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
Simultaneously improved strength, ductility and conductivity in a Be-added Al-Mg-Si alloy conductor under various heat treatments
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-14 DOI: 10.1016/j.matlet.2025.138575
Yi Li , Fulin Jiang , Xiejun Hu , Yunhai Wang , Shu Hu , Jie Tang , Hui Zhang , Lei Liu , Ruifa Feng , Guoxing Li , Yao Wang , Yuxiang Lai , Jianghua Chen
{"title":"Simultaneously improved strength, ductility and conductivity in a Be-added Al-Mg-Si alloy conductor under various heat treatments","authors":"Yi Li ,&nbsp;Fulin Jiang ,&nbsp;Xiejun Hu ,&nbsp;Yunhai Wang ,&nbsp;Shu Hu ,&nbsp;Jie Tang ,&nbsp;Hui Zhang ,&nbsp;Lei Liu ,&nbsp;Ruifa Feng ,&nbsp;Guoxing Li ,&nbsp;Yao Wang ,&nbsp;Yuxiang Lai ,&nbsp;Jianghua Chen","doi":"10.1016/j.matlet.2025.138575","DOIUrl":"10.1016/j.matlet.2025.138575","url":null,"abstract":"<div><div>Al-Mg-Si alloy conductors require high strength, ductility, and conductivity for electrical applications. Common strengthening methods like microalloying and severe plastic deformation typically compromise ductility and conductivity. In this work, Be addition in Al-0.68 Mg-0.57Si alloy conductor synchronously improved tensile strength, elongation, and conductivity under two typical heat treatments. Be addition could delay the early precipitation kinetics, refine precipitate size while increase density and volume fraction. The HAADF-STEM, EELS, and DFT calculations revealed that Be atoms substituted Al and vacancies in <em>B′</em> precipitate, enabled <em>β″</em>-<em>B′</em> co-existence during aging treatment.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138575"},"PeriodicalIF":2.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838602","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
Superior microwave absorption properties of FeNi/graphene composites prepared by the hydrothermal synthesis technique 水热合成技术制备的铁镍/石墨烯复合材料的优异微波吸收特性
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-14 DOI: 10.1016/j.matlet.2025.138582
Y.G. Deng, B.D. Cui, Y. Li
{"title":"Superior microwave absorption properties of FeNi/graphene composites prepared by the hydrothermal synthesis technique","authors":"Y.G. Deng,&nbsp;B.D. Cui,&nbsp;Y. Li","doi":"10.1016/j.matlet.2025.138582","DOIUrl":"10.1016/j.matlet.2025.138582","url":null,"abstract":"<div><div>A FeNi/Graphene composite with superior microwave absorption properties was synthesized via the hydrothermal technique. The results show that the reflection loss (RL) significantly improves with an increase in the Graphene content. The sample GN3 achieves an RLmin of −22.92 dB at 12 GHz, exhibiting an effective bandwidth of less than −10 dB across a span of 4.84 GHz (8.15–12.99 GHz). The synergistic effects of multiple loss mechanisms, including interface polarization and eddy current loss, contributes to the overall microwave absorption performance.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138582"},"PeriodicalIF":2.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833748","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
Abnormal oxidation behaviors of Cr additions on AlMo0.5NbTa0.5TiZr refractory high-entropy alloy
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-14 DOI: 10.1016/j.matlet.2025.138579
J. Park, J. Oh, S. Kim, S. Lee, C.H. Chung, J.S. Park
{"title":"Abnormal oxidation behaviors of Cr additions on AlMo0.5NbTa0.5TiZr refractory high-entropy alloy","authors":"J. Park,&nbsp;J. Oh,&nbsp;S. Kim,&nbsp;S. Lee,&nbsp;C.H. Chung,&nbsp;J.S. Park","doi":"10.1016/j.matlet.2025.138579","DOIUrl":"10.1016/j.matlet.2025.138579","url":null,"abstract":"<div><div>This study investigates the effect of Cr additions on the microstructures and high-temperature oxidation behaviors of AlMo<sub>0.5</sub>NbTa<sub>0.5</sub>TiZrCr<sub>x</sub> (x = 0, 0.5, 2, 5) refractory high entropy alloys. Lab-scale oxidation tests at 1300 °C for up to 5 h revealed superior oxidation resistance in the 0.5 at% Cr alloy. Increased Cr content led to preferential segregation in intermetallic regions, while excessive Cr accelerated CrO<sub>3</sub>(g) volatilization, compromising oxidation resistance.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138579"},"PeriodicalIF":2.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844000","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
Enhancing lithium-sulfur battery performance through the integration of six-metal high entropy oxides 通过整合六金属高熵氧化物提高锂硫电池性能
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-13 DOI: 10.1016/j.matlet.2025.138580
Hassan Raza , Sana Ullah , Awais Akhtar , Ghulam Abbas Gohar , Idris Temitope Bello , Ali Raza , Arslan Ahmed
{"title":"Enhancing lithium-sulfur battery performance through the integration of six-metal high entropy oxides","authors":"Hassan Raza ,&nbsp;Sana Ullah ,&nbsp;Awais Akhtar ,&nbsp;Ghulam Abbas Gohar ,&nbsp;Idris Temitope Bello ,&nbsp;Ali Raza ,&nbsp;Arslan Ahmed","doi":"10.1016/j.matlet.2025.138580","DOIUrl":"10.1016/j.matlet.2025.138580","url":null,"abstract":"<div><div>Lithium sulfur (Li-S) batteries could provide high energy density for electric vehicles. Nonetheless, their uses are hindered by the shuttle effect and slow redox kinetics, necessitating multi-metal electrocatalysts. A novel high entropy oxide (Fe-HEO) is fabricated using MOF template with six metals and used as sulfur host and electrocatalyst. The Fe-HEO facilitated active sites for lithium polysulfides (LPS) anchoring and improved redox conversion kinetic. Thus, Fe-HEO@S exhibited a high discharge capacity (∼1264mAh g<sup>−1</sup> at 0.1C) and maintained ∼ 616mAh g<sup>−1</sup> after 500 cycles (1C) with smaller decay rate of 0.08 % per cycle. It also demonstrated exceptional rate capability (∼715mAh g<sup>−1</sup> at 2C) and 73 % reversibility. This work highlights the fabrication of six metal HEO and showcases the excellent electrochemical performance of Li-S batteries.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138580"},"PeriodicalIF":2.7,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833750","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
CALPHAD optimization of SiO2-B2O3-Al2O3-ZnO-CaO-Na2O-Li2O-MoO3 system and their applications to high-level radioactive waste vitrification
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-04-12 DOI: 10.1016/j.matlet.2025.138540
Toru Sugawara , Toshiaki Ohira , Kohei Owaku , Norio Kanehira , Takeshi Tsukada
{"title":"CALPHAD optimization of SiO2-B2O3-Al2O3-ZnO-CaO-Na2O-Li2O-MoO3 system and their applications to high-level radioactive waste vitrification","authors":"Toru Sugawara ,&nbsp;Toshiaki Ohira ,&nbsp;Kohei Owaku ,&nbsp;Norio Kanehira ,&nbsp;Takeshi Tsukada","doi":"10.1016/j.matlet.2025.138540","DOIUrl":"10.1016/j.matlet.2025.138540","url":null,"abstract":"<div><div>Element partitioning behavior between immiscible silicate melt and molybdate melt was determined by phase equilibrium experiments in the SiO<sub>2</sub>-B<sub>2</sub>O<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>-ZnO-CaO-Na<sub>2</sub>O-Li<sub>2</sub>O-MoO<sub>3</sub> system at 1200 °C and 1000 °C. By combining these results and thermodynamic data of silicate melts and molybdenum compounds, CALPHAD analysis was performed to construct a database for thermodynamic calculation of phase equilibria for MoO<sub>3</sub>-bearing alumino-borosilicate melts. The thermodynamic database will be useful for predicting the phase separation of molybdate melt and crystallization of Powellite (CaMoO<sub>4</sub>) in vitrification process of high-level radioactive waste.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138540"},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839259","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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