Bulletin of Materials Science最新文献

{"title":"Effect of deposition temperature on morphology and properties of nickel-based composite coatings","authors":"Heng Liu,&nbsp;Chenming Zhang,&nbsp;Yun Qiu,&nbsp;Xieeryazidan Aday,&nbsp;Yanxiang Wei","doi":"10.1007/s12034-024-03370-6","DOIUrl":"10.1007/s12034-024-03370-6","url":null,"abstract":"<div><p>In order to further improve the corrosion resistance of 316L stainless steel, which is commonly used in petrochemical enterprises, this paper leverages the characteristics of electrochemical deposition, utilizing pulsed-assisted jet electrodeposition technology. The morphology, hardness, wear resistance and corrosion resistance of the Ni-SiC composite coatings were investigated using scanning electron microscopy, X-ray diffractometer, energy-dispersive spectroscopy, a Vickers hardness tester, a friction and wear tester and an electrochemical workstation. The results indicate that deposition temperature influences coating properties more significantly than other factors. At a deposition temperature of 40°C, the coating exhibits minimal surface defects and the highest SiC particle content. At this time, the microhardness of the composite coatings reaches 652.85 HV, which is increased by 113.75% compared with the substrate, and the minima of the average friction coefficient and the average wear width are 0.73 and 383.6 μm, respectively, which are 4.13 and 40% lower than those of the substrate. In addition, the corrosion current density and annual corrosion rate of the composite coatings were reduced by 67.01 and 67.13%, respectively, compared to the substrate at this temperature. The study indicates that variations in deposition temperature significantly influence the wear and corrosion resistance of nickel-based composite coatings.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143373269","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}

{"title":"Enhanced NiO-based gas sensing performance to ethanol: the case of polyvinylidene fluoride","authors":"Yidong Zhang,&nbsp;Zhenwei Dong,&nbsp;Huimin Jia,&nbsp;Lei Zhao,&nbsp;Yongqiang Ji","doi":"10.1007/s12034-024-03392-0","DOIUrl":"10.1007/s12034-024-03392-0","url":null,"abstract":"<div><p>NiO were prepared by hydrothermal method using nitrate hexahydrate and urea as precursors at 100°C for 12 h. The morphology, size and structure was observed by scanning electron microscope and X-ray diffraction (XRD). The gas sensitivity of NiO to ethanol vapor was characterized by CGS-8 gas sensing analysis system. The results showed that the sensitivity of NiO-based gas sensor increased from 1.82 to 3.25 under the additive of polyvinylidene fluoride (PVDF). The mechanism of the enhanced gas sensing performance was investigated.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143373353","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}

{"title":"Fabrication of the conductive polypyrrole/silk fibroin nanofibrous mats and its biodegradable activity","authors":"Ning Lu,&nbsp;Yuyu Wang,&nbsp;Gongji Song,&nbsp;Zifan Zhang,&nbsp;Pengfei Li,&nbsp;Jiannan Wang,&nbsp;Jianmei Xu","doi":"10.1007/s12034-024-03385-z","DOIUrl":"10.1007/s12034-024-03385-z","url":null,"abstract":"<div><p>Conductive scaffolds are gaining increasing attention in peripheral nerve repair for their good biocompatibility and electrical properties similar to those of normal nerves. In this study, silk fibroin (SF) nanofibre mats coated with polypyrrole (PPy) were prepared through electrospinning and chemical polymerization. Scanning electron microscopy (SEM) showed even and firm coating of PPy around the nanofibres, and fourier transform infrared spectroscopy (FTIR) analyses of the conductive mats confirmed the presence of hydrogen bonds or electrostatic interactions between PPy and SF. The conductivity of the composite mats could be regulated by varying the pyrrole monomer concentration from 10–20 mM, resulting in corresponding changes in conductivity from 9.4 ± 3.4 × 10^–5 to 4.6 ± 1.0 × 10^–3 S cm^–1. The mechanical strength, hydrophilicity and biodegradability of the mats exhibited similar changing trends. Biodegradability tests showed weight losses of 51.2, 13.6, 11.2 and 15.1% for composite mats with varying PPy coating rates on the 28th day, revealing that the biodegradability can be regulated and optimised by varying the pyrrole concentration. Schwann cell culture confirmed that the SF/PPy mats improved cell proliferation and adhesion compared to pure SF mats. The results demonstrate that the SF/PPy mats, with nanoscale surface, excellent biocompatibility, conductivity and controllable biodegradability, represent promising materials with potential for use in peripheral nerve regeneration.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143373354","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}

{"title":"A tunable approach to fabricate cost-effective SERS substrates using Au nanoparticles by sputtering deposition","authors":"Daniel Soden,&nbsp;Saif Taqy,&nbsp;Kartik Ghosh,&nbsp;Ariful Haque","doi":"10.1007/s12034-024-03395-x","DOIUrl":"10.1007/s12034-024-03395-x","url":null,"abstract":"<div><p>In this study, we investigate a simple technique in surface-enhanced Raman spectroscopy (SERS) substrate fabrication designed to decrease synthesis time, effort and cost. Sputtering is utilized to deposit a gold (Au) layer on insulating substrates, and annealing treatments are applied to agglomerate the Au atoms into the sought-after nanostructures conducive to the SERS effect. The samples are characterized by scanning electron microscopy, Raman spectroscopy, atomic force microscopy, etc. This study shows that with increasing sputtering amperage and time, the film thickness increases, and with increased annealing temperature, the surface roughness decreases while increasing the particle-to-particle distance. A quartz substrate with 10 mA current, 40 s time and annealing at 300°C produced the highest enhancement factor. Through the utilization of sputter coating and a simple annealing step, the complexity of SERS substrate synthesis can be scaled back considerably, allowing further utilization within industrial and medical settings and unlocking more potential for SERS.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184622","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}

{"title":"Highly stretchable conductive carbon nanofibre acrylic latex-based nanocomposites for sensing applications","authors":"Srinivasarao Yaragalla,&nbsp;K B Bhavitha","doi":"10.1007/s12034-025-03397-3","DOIUrl":"10.1007/s12034-025-03397-3","url":null,"abstract":"<div><p>Stretchable conducting polymer nanocomposites are indispensable for designing flexible electronic devices mainly employed in emerging robotic technology to improve human–machine interactions. Herein, we report the fabrication and testing of 300% stretchable electronic film resistors as strain sensors by spray coating carbon nanofibers (CNFs)/natural rubber solutions over a stretchable acrylic latex-CNF nanocomposite substrate. The CNF-based coatings had a low sheet resistance of 26 Ω sq⁻¹ and very good current transmission behaviour under elongation. Under 300% elongation, the nanocomposite film current reached ~55 µA demonstrating their potential as flexible thin conductive films.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107973","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}

{"title":"Effects of additive and sintering temperatures on solution-combustion Zn3V2O8 green phosphor","authors":"Moges Tsega","doi":"10.1007/s12034-024-03386-y","DOIUrl":"10.1007/s12034-024-03386-y","url":null,"abstract":"<div><p>Zn₃V₂O₈ (or ZVO) nanophosphor was prepared using a simple solution-combustion technique and sintered at 700–800°C for 5 h. The effects of additive and sintering temperatures on structural, morphological and optical properties have been investigated. The structural studies revealed an orthorhombic phase structure. The <i>d</i>-spacing and lattice constants also increased with the sintering temperature. The microplate-shaped morphology of ZVO sintered at 750°C is confirmed by SEM and TEM pictures, with an average grain size of roughly 3–5 μm. The optical energy gap of the direct transition is also estimated, and it decreases from 3.4 to 3.1 eV with the increase in sintering temperature. The ZVO also demonstrated a broad photoluminescence (PL) emission range between 450 and 600 nm, with a peak at 534 nm, indicating green luminescent emission. Large grains with microplate shapes emit the highest PL intensity in ZVO phosphor at 750°C.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107985","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}

{"title":"Design, fabrication and validation of a low-cost stereotaxic device for brain research in rodents","authors":"Avinash Wadkar,&nbsp;Heramb Patkar,&nbsp;Srinivasa Prasad Kommajosyula","doi":"10.1007/s12034-024-03377-z","DOIUrl":"10.1007/s12034-024-03377-z","url":null,"abstract":"<div><p>Environmental toxicants can impact brain health and function. Studying their effects on the rodent brain is paramount to understanding the mechanisms and devising therapies. The stereotaxic device is widely used to target brain regions. However, the cost of this device is very high and cannot be afforded by researchers from low- and low-middle-income countries. This study has modelled, designed, fabricated, and evaluated a cost-effective stereotaxic device. A 3-D model of the stereotaxic device was prepared using FUSION 360 software followed by fabrication using aluminium and steel. The aluminium has malleability, lightweight, high extrudability, and corrosion resistance property, making it the material of choice for fabricating the nose clamp, mouth restrainer, and ear bar. To construct the parts requiring motion, we used alloy steel, which has high density, tensile strength and smooth texture. To achieve better accuracy, computer numerical control (CNC) and an automatic wire-cutting (EDM) manufacturing processes were used in fabrication. Later, the dye microinjection and electrolytic lesion techniques were used to validate this instrument. A comparison of percent accuracy for hitting structures between the fabricated and commercial stereotaxic devices for both the deep and superficial brain structures such as the substantia nigra (91.7 <i>vs.</i> 92.5%), thalamus (92.6 <i>vs.</i> 98.22%) and hippocampus (92.85 <i>vs.</i> 98.75%), showcased comparable accuracies between devices. The cost of the materials used were approximately nine thousand Indian rupees, and the labour charges for different machining processes used were approximately seventeen thousand Indian rupees. Totalling to 26,000 Indian rupees or 310 US dollars. This cost may vary depending on the material type/vendor as well. The materials can be provided to a workshop, and the design reported here can be used to make a stereotaxic device for rodent research. The 3-D modeling approach presented here coupled with computerised numerical control/electronic discharge machining process achieves high precision comparable to a commercial product and is also affordable. This study will enable students/researchers in middle and low-income countries to perform neuroscience/toxicological studies on the brain using this self-made low-cost precision device.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107974","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}

{"title":"Ab initio calculations of DNA/RNA nucleobases with blue/black phosphorene for electronic sensing applications","authors":"Bahadir Salmankurt,&nbsp;Hikmet Hakan Gürel","doi":"10.1007/s12034-024-03384-0","DOIUrl":"10.1007/s12034-024-03384-0","url":null,"abstract":"<div><p>Nucleobases (NBs), essential biomolecules underpinning numerous biological processes, were investigated for their adsorption mechanisms on black phosphorene (BlackP) and blue phosphorene (BlueP) monolayers using first-principles van der Waals (vdW) calculations. The study examined guanine (G), cytosine (C), adenine (A), thymine (T), and uracil (U) as adsorbates. The adsorption strength between DNA/RNA nucleobases and BlackP followed the trend G &gt; A &gt; C &gt; T &gt; U. At the same time, BlueP exhibited G &gt; C &gt; A &gt; T &gt; U. It aligns with theoretical studies in the literature on the interaction between BlueP/BlackP and NBs. Furthermore, the influence of these interactions on the electronic properties was uniquely investigated in detail. The most notable result obtained is the significant change in the band structures of BlueP upon interaction with G and A. Furthermore, this study uniquely investigates the adsorption mechanisms of NBs on BlackP and BlueP under the effect of charging by focussing on the impact on electronic properties for the first time. The results suggest a potential semiconductor-metal-semiconductor (SMS) transition for NBs on BlueP under charging. Compared to other NBs, A has a distinct influence on BlueP at the state of ΣQ = + 2 e/cell. Also, the effects of NBs on the transport properties of BlackP/BlueP monolayers have been investigated in detail for the first time. At a gate voltage (Vg) of 0.30 V, the BlackP sensor demonstrates improved sensitivity towards C, G, and U. Therefore, this study provides insights for developing the devices detecting the NBs.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109434","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}

{"title":"Influence of sintering temperature on microstructure and electrical properties of titanium porous-transport layers for proton exchange membrane water electrolyzer applications","authors":"Doan Dinh Phuong,&nbsp;Do Chi Linh,&nbsp;Pham Hong Hanh,&nbsp;Nguyen Quoc Thinh,&nbsp;Luong Van Duong","doi":"10.1007/s12034-024-03391-1","DOIUrl":"10.1007/s12034-024-03391-1","url":null,"abstract":"<div><p>Porous transport layers (PTL) are used in the proton exchange membrane water electrolyzers to facilitate the gas/water transport and the electric charge transfer. As a result, the PTL is critical in ensuring the efficiency of the electrolyzing process. This work aims to produce titanium PTLs through the spark plasma sintering process. The sintering temperature was varied from 500 to 650°C to investigate the characteristics of the titanium PTL samples while maintaining the sintering pressure and holding time at 10 MPa and 10 min, respectively. The phase structure and morphology of the samples were investigated by X-ray diffraction and scanning electron microscopy analyses. The compressive strength and the corrosion behaviour of the samples were investigated by the compressive testing and the electrochemical corrosion testing, respectively. The experimental results showed that there were no new phases formed when the Ti PTLs were sintered at different temperatures. With an increase in the sintering temperature, the porosity of the samples considerably decreased, while their compressive strength, electrical conductivity and corrosion resistance increased. It is suggested that selecting the optimum sintering temperature for sintered samples can improve the mass transport behaviour in PEM electrolyzers and produce superior PTLs.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109576","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}

{"title":"Catanionic synergetic effect of sodium dodecyl sulphate and cetyl trimethyl ammonium bromide surfactants on the electrochemical performance of porous carbon anodes in lithium-ion batteries","authors":"Y Guner,&nbsp;K B Dermenci,&nbsp;A T Guner,&nbsp;S Turan","doi":"10.1007/s12034-024-03393-z","DOIUrl":"10.1007/s12034-024-03393-z","url":null,"abstract":"<div><p>Carbon-derived materials are suitable for use as anodes in lithium-ion batteries due to low production cost and abundance. However, there is a need to improve the electrochemical performance with various modifications due to the limited capacity. In this study, a porous carbon is modified with anionic sodium dodecyl sulphate (SDS) and cationic cetyl trimethyl ammonium bromide (CTAB) surfactants and prepared as an anode for use in lithium-ion batteries. Morphological and structural properties change with the addition of surfactants, and the use of only one or two of them together has different effects. The morphology formed by adding only SDS is homogeneous and only CTAB is heterogeneous. When both surfactants are used SDS also provides homogeneous dispersion of CTAB. The changes in <i>I</i>_2D/<i>I</i>_G and <i>I</i>_D/<i>I</i>_G ratios obtained from Raman analyses show that the layer arrangement and the ratio of defects in the structure have changed. Electrochemical performances with different surfactant amounts are compared by using charge/discharge tests, cyclic voltammetric tests and differential capacity analysis (d<i>Q</i>/d<i>V</i>). The combined use of SDS and CTAB creates a synergetic effect (catanionic) and increases the capacity nearly 1.5 times by improving wetting, amount of lithium-ion storage areas and reducing the irreversible loss of capacity caused by solid electrolyte interface.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109575","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}