Materials Letters: X最新文献

Effect of austenitizing temperature on microstructure and mechanical properties of medium carbon spring steel 奥氏体化温度对中碳钢组织和力学性能的影响

IF 2.6

Materials Letters: X Pub Date : 2025-08-04 DOI: 10.1016/j.mlblux.2025.100251

Qian Yu , Yuliang Zhao , Feiyu Zhao

引用次数: 0

Electrochemical dealloying in ChCl-Urea Deep eutectic solvent: A strategy to fabricate porous FeCoNiAlMo high-entropy alloy with enhanced oxygen evolution reaction activity 在chcl -尿素深共晶溶剂中电化学脱合金：制备多孔FeCoNiAlMo高熵合金的一种增强析氧活性的策略

IF 2.6

Materials Letters: X Pub Date : 2025-07-30 DOI: 10.1016/j.mlblux.2025.100252

Jiangfei Wang , Weijia Chen , Yijun Wen , Yuhan Peng , Siqi Liu , Shiwei He

{"title":"Electrochemical dealloying in ChCl-Urea Deep eutectic solvent: A strategy to fabricate porous FeCoNiAlMo high-entropy alloy with enhanced oxygen evolution reaction activity","authors":"Jiangfei Wang , Weijia Chen , Yijun Wen , Yuhan Peng , Siqi Liu , Shiwei He","doi":"10.1016/j.mlblux.2025.100252","DOIUrl":"10.1016/j.mlblux.2025.100252","url":null,"abstract":"<div><div>High-entropy alloys (HEAs), as a new type of multi-element alloy, have become widely studied electrocatalytic materials in recent years due to their excellent catalytic performance. The experimental material used FeCoNiAlMo HEA with equal atomic ratio as the precursor, and three-dimensional nanostructures were formed by dealloying in choline chloride-urea (ChCl-Urea). The results indicate that Fe<sub>20</sub>Co<sub>20</sub>Ni<sub>20</sub>Al<sub>20</sub>Mo<sub>20</sub> HEA is mainly composed of body-centered cubic (BCC) phase and face-centered cubic (FCC) phase, with BCC phase accounting for a larger proportion. Due to the different corrosion resistance of elements and the difference in element content distribution between the two phases, the FCC phase is preferentially corroded, resulting in a three-dimensional porous morphology. This unique structure synergistically reduces the energy barrier during the hydrolysis dissociation process, giving the material a significant advantage in the oxygen evolution reaction (OER) process. At a current density of 10 mA cm<sup>−2</sup>, the overpotential of the treated alloy is as low as 312 mV, which is lower than the commercial RuO<sub>2</sub>-IrO<sub>2</sub>, and it has lower resistance and higher charge transfer efficiency.</div></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"26 ","pages":"Article 100252"},"PeriodicalIF":2.6,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced imaging of gas diffusion layers: A comparison between focused ion beam scanning electron microscopy and X-ray computed tomography 气体扩散层的高级成像：聚焦离子束扫描电子显微镜与x射线计算机断层扫描的比较

IF 2.2

Materials Letters: X Pub Date : 2025-07-18 DOI: 10.1016/j.mlblux.2025.100250

Hossein Pourrahmani , Thomas B. Ferriday , Raha Razmara , Hossein Madi , Jan Van herle

引用次数: 0

High energy-resolution electron energy loss spectroscopy and near infrared absorption study of cesium tungsten bronze and lanthanum hexaboride 铯、钨、青铜和六硼化镧的高能分辨电子能量损失光谱及近红外吸收研究

IF 2.2

Materials Letters: X Pub Date : 2025-07-12 DOI: 10.1016/j.mlblux.2025.100249

Shuzheng Guo , Jingyi Huang , Na Ta , Fengze Cao , Sihua Ha , Shuai He , Jianli He , Luomeng Chao

引用次数: 0

Simple and efficient optical fiber recoating procedure 简单高效的光纤重涂工艺

IF 2.2

Materials Letters: X Pub Date : 2025-07-03 DOI: 10.1016/j.mlblux.2025.100248

F.A.C. Nobrega , E.A.W. Menezes , R. Reichenbächer , C. Scheffler , R.F. Abreu , E.F. Morais , C.M.B. Cordeiro , A. Spickenheuer , S.C. Amico , A.S.B. Sombra

{"title":"Simple and efficient optical fiber recoating procedure","authors":"F.A.C. Nobrega , E.A.W. Menezes , R. Reichenbächer , C. Scheffler , R.F. Abreu , E.F. Morais , C.M.B. Cordeiro , A. Spickenheuer , S.C. Amico , A.S.B. Sombra","doi":"10.1016/j.mlblux.2025.100248","DOIUrl":"10.1016/j.mlblux.2025.100248","url":null,"abstract":"<div><div>This article describes a rapid method of recoating optical fibers employing the dip-coating technique, using a polypropylene film former with a silane coupling agent, which reacts, yielding a protective film over the core. The silica optical fibers were recoated with film former sizings at concentrations of 5 % and 10 %. Microscopic analysis of the recoated area showed a smooth surface and an increase in diameter of 13.4 % and 16.5 %, respectively, compared to the uncoated fiber. The maximum curvature radius of the uncoated fibers was 3.69 ± 1.70 mm, whereas the fibers recoated with the 5 % and 10 % film former sizings reached a bending radius of 1.71 ± 1.38 mm and 1.55 ± 0.98 mm, representing 53.9 % and 57.9 % reduction, respectively. This shows that recoated optical fibers are more flexible than the uncoated ones. In all, the recoating of optical fibers proposed in this work results in fibers with smooth and flexible surfaces using a simple, cost-effective technique that can be implemented on large-scale processes.</div></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"26 ","pages":"Article 100248"},"PeriodicalIF":2.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TEM observation of extracted precipitates in T5 heat treated Al–Si–Mg alloy T5热处理Al-Si-Mg合金析出相的透射电镜观察

IF 2.2

Materials Letters: X Pub Date : 2025-06-08 DOI: 10.1016/j.mlblux.2025.100246

Taiki Tsuchiya , Seungwon Lee , Susumu Ikeno , Kenji Matsuda

引用次数: 0

Surface contamination induced by warm severe surface peening using 100C6 steel and ZrO2 shots 用100C6钢和ZrO2喷丸进行表面强化热处理引起的表面污染

IF 2.2

Materials Letters: X Pub Date : 2025-05-31 DOI: 10.1016/j.mlblux.2025.100245

Y Austernaud , M Novelli , T.H. Kauffmann , P Bocher , T Grosdidier

引用次数: 0

Semiconducting polymer-MXene blends with improved charge carrier mobilities and their application in field-effect transistors 提高载流子迁移率的半导体聚合物- mxene共混物及其在场效应晶体管中的应用

IF 2.2

Materials Letters: X Pub Date : 2025-05-14 DOI: 10.1016/j.mlblux.2025.100244

Jurij Urbančič , Huanhuan Shi , Ali Shaygan Nia , Egon Pavlica

{"title":"Semiconducting polymer-MXene blends with improved charge carrier mobilities and their application in field-effect transistors","authors":"Jurij Urbančič , Huanhuan Shi , Ali Shaygan Nia , Egon Pavlica","doi":"10.1016/j.mlblux.2025.100244","DOIUrl":"10.1016/j.mlblux.2025.100244","url":null,"abstract":"<div><div>Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> is the first successfully obtained member of the MXene family. Due to its many excellent properties such as high metallic conductivity, solubility and capacitance, it has attracted a wide interest in potential applications such as supercapacitors and energy storage devices. In the presented work, we have successfully produced various semiconducting thin-films consisting of Poly(3-hexylthiophene-2,5-diyl) (P3HT) organic semiconductor (OS) blended with MXene flakes with different MXenes concentrations. Time-of-flight photoconductivity (TOFP) measurements revealed a 370 % enhancement in charge carrier mobility compared to neat P3HT. Organic field-effect transistors (OFETs) were also fabricated using these blends, showing a 20 % improvement in field-effect mobility. This discrepancy arises due to contact resistance and interface effects in OFETs, which are absent in TOFP measurements. These results highlight the promise of P3HT:MXene blends for advanced electronic applications, where high mobility and straightforward processing are essential.</div></div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"25 ","pages":"Article 100244"},"PeriodicalIF":2.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-friendly gelatin/rice bran polysaccharides packaging films for fruit preservation 果胶/米糠多糖环保型保鲜膜

IF 2.2

Materials Letters: X Pub Date : 2025-05-06 DOI: 10.1016/j.mlblux.2025.100243

Wei Wang , Xiaoju Chen , Xinyu Ye , Bei Ni , Lin Xu , Minmin Chen

引用次数: 0

1,3-Diethyl-2-Thiourea as a corrosion inhibitor for carbon steel SA 106 GR.B 1,3-二乙基-2-硫脲对碳钢SA 106 GR.B的缓蚀性能

IF 2.2

Materials Letters: X Pub Date : 2025-05-02 DOI: 10.1016/j.mlblux.2025.100242

Sion Kim , Kamal Asghar , Miguta Faustine Ngulimi , Bum Kyoung Seo , Changhyun Roh

引用次数: 0