Bulletin of Materials Science最新文献_第7页

Influence of residual stress on corrosion and mechanical properties of silicon carbide-reinforced nickel–tungsten coatings 残余应力对碳化硅增强镍钨镀层腐蚀及力学性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-27 DOI: 10.1007/s12034-024-03369-z

Swarnima Singh, Anup Kumar Keshri, Sisir Mantry

{"title":"Influence of residual stress on corrosion and mechanical properties of silicon carbide-reinforced nickel–tungsten coatings","authors":"Swarnima Singh, Anup Kumar Keshri, Sisir Mantry","doi":"10.1007/s12034-024-03369-z","DOIUrl":"10.1007/s12034-024-03369-z","url":null,"abstract":"<div>Nickel–tungsten (Ni–W) coatings reinforced with silicon carbide (SiC) were successfully produced on a steel substrate using the pulse electrodeposition method (PED). Influence of SiC addition on phases, crystallite size, dislocation density, residual stress, mechanical properties and corrosion resistance of the coating were investigated. Field emission scanning electron microscopy (FESEM) images revealed a refinement in the coating’s surface morphology and distribution of SiC particles. Higher residual stress observed in the as-deposited Ni–W coating was attributed to hydrogen dissolution into the coating, leading to lattice expansion, with the subsequent release of hydrogen, contributing to this stress. Addition of SiC to the Ni–W coating resulted in improvements in hardness and bonding strength by ~23% and ~184%, respectively. Moreover, the addition of SiC to Ni–W coating led to a reduction in the coefficient of friction by about ~34% compared to Ni–W coating. Corrosion properties were evaluated using an immersion test in a 3.5 wt.% NaCl solution. The Ni–W–SiC composite coating exhibited significantly higher corrosion resistance, with ~67% decrease in corrosion rate compared to Ni–W coating. This enhanced corrosion resistance was linked to the grain refinement induced by SiC, which restricted the penetration of corrosive ions onto the substrate. Furthermore, the formation of a continuous barrier layer composed of SiO2, contributed to the improved corrosion resistance.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889835","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

Preparation of nesquehonite powder by solid-phase conversion of magnesite and its phase conversion mechanism 菱镁矿固相转化制备菱镁矿粉体及其相变机理

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-27 DOI: 10.1007/s12034-024-03368-0

YULIAN WANG, YIFAN ZHANG, TIANJIAO SHI, JIAYI LIU, QIHAO WANG, YIBIN ZHU, JUN ZHANG, ZHIGANG YUAN, JIN YAO, WANZHONG YIN

{"title":"Preparation of nesquehonite powder by solid-phase conversion of magnesite and its phase conversion mechanism","authors":"YULIAN WANG, YIFAN ZHANG, TIANJIAO SHI, JIAYI LIU, QIHAO WANG, YIBIN ZHU, JUN ZHANG, ZHIGANG YUAN, JIN YAO, WANZHONG YIN","doi":"10.1007/s12034-024-03368-0","DOIUrl":"10.1007/s12034-024-03368-0","url":null,"abstract":"<div>A novel and straightforward ion-catalysed magnesite solid-phase conversion method was used to prepare nesquehonite powder. Magnesite and slaked lime were used as raw materials and MgCl2 was used as the catalyst. Magnesite could be directly converted to magnesium hydroxide by the solid-phase conversion method, and nesquehonite crystals were prepared by carbonisation and pyrolysis. The physical composition and microscopic morphology of the products were characterised by XRD and SEM, and the solid-phase conversion mechanism was analysed. The effect of catalyst type, solid-to-liquid ratio, hydration temperature, MgCl2 addition and magnesite ore powder to slake lime mass ratio on the magnesium conversion rate was investigated. The rod-like nesquehonite crystals with good crystalline structures were obtained when the hydration temperature was 85°C, the solid-liquid ratio was 1:40, addition of MgCl2 was 5%, magnesite ore powder to calcium hydroxide ratio was 1:2 and magnesium conversion rate reached 20.98%. The catalyst MgCl2 could react with Ca(OH)2 rapidly to form CaCl2, which improves the ionic strength in the bulk solution as an intermediate product. Consequently, the solubility of magnesite was improved due to the salt effect and the conversion rate of magnesium was further increased.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889833","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, elastic, electronic and optical properties of some Ruddlesden–Popper compounds 一些Ruddlesden-Popper化合物的结构、弹性、电子和光学性质

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-27 DOI: 10.1007/s12034-024-03382-2

Sevket Simsek

{"title":"Structural, elastic, electronic and optical properties of some Ruddlesden–Popper compounds","authors":"Sevket Simsek","doi":"10.1007/s12034-024-03382-2","DOIUrl":"10.1007/s12034-024-03382-2","url":null,"abstract":"<div>The structural, elastic, electronic and optical properties of Ruddlesden–Popper-layered (Sr,Ca)3Ti2O7 compounds in the paraelectric phase have been studied in detail using a first-principles method based on density functional theory. The results obtained from structural optimization demonstrate that they are consistent with existing experimental and theoretical results in the literature. To investigate the mechanical properties of the Sr3Ti2O7 and Ca3Ti2O7 compounds, second-order elastic constants were calculated. The obtained results confirm that the Sr3Ti2O7 and Ca3Ti2O7 compounds are mechanically stable. The polycrystalline elastic modulus, including bulk modulus (B), shear modulus (G), Young’s modulus (E) and Poisson’s ratio (ν), for both compounds was calculated using the obtained elastic constants. It was estimated from the calculated ({H}_{text{macro}}) and ({H}_{text{micro}}) hardness values that these compounds are medium-hard materials. Furthermore, both compounds were found to be elastically anisotropic and brittle materials. The electronic structure analysis indicates that the Sr3Ti2O7 and Ca3Ti2O7 compounds are semiconductor materials with indirect bandgaps of 2.92 and 2.89 eV, respectively. To determine their potential application areas in optoelectronic devices, the frequency-dependent complex dielectric function of the Sr3Ti2O7 and Ca3Ti2O7 compounds was calculated.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889834","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

Recovery of lithium hydroxide from discarded lithium-ion batteries 从废弃锂离子电池中回收氢氧化锂

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-20 DOI: 10.1007/s12034-024-03356-4

Anoop S Kumar, K Ramaswamy, Dhvani B Purohit, Priyadarshini Bais, K Venkatesham, Neha Mohiuddin, S Rajesh Kumar, R Ratheesh, Ajay Kaushal

{"title":"Recovery of lithium hydroxide from discarded lithium-ion batteries","authors":"Anoop S Kumar, K Ramaswamy, Dhvani B Purohit, Priyadarshini Bais, K Venkatesham, Neha Mohiuddin, S Rajesh Kumar, R Ratheesh, Ajay Kaushal","doi":"10.1007/s12034-024-03356-4","DOIUrl":"10.1007/s12034-024-03356-4","url":null,"abstract":"<div>Recovery of lithium (Li) compounds from various Li resources is attracting attention due to the increased demand in Li-ion battery industry. Current work presents an innovative route for selective recovery of lithium content in the form of lithium hydroxide monohydrate (LiOH·H2O) from discarded LIBs. Lithium carbonate (Li2CO3) with purity > 99% is recovered from black mass. The recovered Li2CO3 is then crystallised to LiOH·H2O by using calcium hydroxide (Ca(OH)2) as the base. The method comprises of: (i) pre-treatment of LIB black mass powder; (ii) selective extraction of Li content from black mass; (iii) crystallisation and solid–liquid separation to recover LiOH·H2O as final recovered product. A total of 0.1933 wt.% impurities comprising of Ca, Al, Cu and Fe were detected in the recovered product. Elemental analysis at each processing step was carried out using inductively coupled plasma-optical emission spectroscopy. Structural properties of the recovered materials are analysed by using X-ray diffraction, field emission scanning electron microscopy. Fourier-transform infrared spectroscopy spectrum of recovered product was found consistent with the formation of LiOH·H2O. The LiOH·H2O is successfully recovered from discarded LIBs with purity of 99.8%, which finds its potential use as secondary raw material in battery manufacturing, Li-based high temperature grease manufacturing, carbon dioxide scrubbing in space craft and submarines, etc.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859785","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

Facile synthesis of MOF-derived Co9S8/Ni3S2/N-doped carbon composites for supercapacitors 轻松合成用于超级电容器的 MOF 衍生 Co9S8/Ni3S2/N 掺杂碳复合材料

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-20 DOI: 10.1007/s12034-024-03364-4

D Wei, Z F Zhou, H H Ma, W B Xu, F M Ren

{"title":"Facile synthesis of MOF-derived Co9S8/Ni3S2/N-doped carbon composites for supercapacitors","authors":"D Wei, Z F Zhou, H H Ma, W B Xu, F M Ren","doi":"10.1007/s12034-024-03364-4","DOIUrl":"10.1007/s12034-024-03364-4","url":null,"abstract":"Transition metal sulphides derived from metal–organic frameworks (MOFs) have gained increasing attention as promising electrode materials for energy storage, owing to their elevated theoretical capacitance and exceptional electrochemical features. Herein, a simple dual organic ligand strategy and controllable pyrolysis treatment were used to prepare porous micro-rods Co9S8/Ni3S2/NC-T (T denotes for temperature) composite materials. Their structure and composition can be precisely controlled by adjusting the pyrolysis temperature. Co9S8/Ni3S2/NC-T composite materials possess rich pore structures, unique three-dimensional carbon conductive networks and synergistic effects of Co9S8 and Ni3S2. Experimental results of cyclic voltammetry revealed that the bimetal sulphides in Co9S8/Ni3S2/NC-T can provide substantial redox pseudocapacitance for electrochemical reactions. Electrochemical tests indicated that the optimal carbonization temperature was 700°C, and the Co9S8/Ni3S2/NC-700 electrode material has the highest specific capacity of 2288 F g−1 at a current density of 1 A g−1 and an excellent rate capability with retention of about 61.2% at a current density of 10 A g−1. This study provides methodological guidance for the rational composition control and unique structure of MOF-derived materials for supercapacitors.","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859787","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

Correction: Design and development of solidly mounted bulk acoustic wave resonator (SMR)-based ammonia gas sensor 修正：基于固体体声波谐振器（SMR）的氨气传感器的设计与开发

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-20 DOI: 10.1007/s12034-024-03380-4

Vinita, Jitendra Singh

引用次数: 0

Development of SiO2 nanofibre fillers with low-thermal conductivity by regulating heat-treatment process 调节热处理工艺制备低导热SiO2纳米纤维填料

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-20 DOI: 10.1007/s12034-024-03366-2

YIFAN WU, YANGFAN PAN, JUNXIA GUO, YONGQIANG MENG, HONGJUN HUANG

{"title":"Development of SiO2 nanofibre fillers with low-thermal conductivity by regulating heat-treatment process","authors":"YIFAN WU, YANGFAN PAN, JUNXIA GUO, YONGQIANG MENG, HONGJUN HUANG","doi":"10.1007/s12034-024-03366-2","DOIUrl":"10.1007/s12034-024-03366-2","url":null,"abstract":"<div>Silicon dioxide (SiO2) is considered to be a promising material for thermal insulation. However, the application scenarios of insulation materials are limited, and how to enhance their practical application value has been an attractive research topic. In this work, SiO2 nanofibres were prepared by the electrospinning technology. Effects of different heat-treatment parameters on SiO2 crystal transformation, nanofibres’ diameter and thermal conductivity were investigated, and the thermal-insulation mechanism of SiO2 nanofibres was further studied. Results of the study show that the heat-treatment process has a significant effect on nanofibre diameter, which affects thermal conductivity. When the heat-treatment temperature is 900°C, the heating rate is 8°C min−1 and holding time is 2 h, the diameter of SiO2 nanofibres is the finest, and thermal conductivity is the lowest (0.039 W mK−1). In addition, nanofibres is demonstrated as functional fillers of thermal-insulation coating, which exhibit excellent thermal insulation and mechanical properties. This study can provide a certain reference value for the development of new lightweight and functional thermal-insulation fillers.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859786","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

The structural, mechanical, electronic, and optical properties of multiferroic LiCu2O2 under different pressures 不同压力下多铁性LiCu2O2的结构、机械、电子和光学性质

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-18 DOI: 10.1007/s12034-024-03365-3

Husnu Koc, Sevket Sİmsek, Amirullah M Mamedov, Ekmel Ozbay

{"title":"The structural, mechanical, electronic, and optical properties of multiferroic LiCu2O2 under different pressures","authors":"Husnu Koc, Sevket Sİmsek, Amirullah M Mamedov, Ekmel Ozbay","doi":"10.1007/s12034-024-03365-3","DOIUrl":"10.1007/s12034-024-03365-3","url":null,"abstract":"<div>In this work, the structural, mechanical, and electronic properties of LiCu2O2 compound under different pressures were studied using the density functional theory. The spin-polarized generalized-gradient approximation has been used for modelling the exchange-correlation effects. In particular, the electronic structure under zero pressure was analysed using both conventional GGA-PBE and meta-GGA (mBJLDA) functional. The structural optimization was performed by using VASP-code, and the lattice parameters and magnetic moments were calculated. Bulk modulus, shear modulus, Young’s modulus, Poisson’s ratio, anisotropy factors, sound velocities, and Debye temperature were obtained from the calculated elastic constants for LiCu2O2 compound. While the electronic band structures obtained from both functionals for spin up under zero pressure are semiconductor in nature, the electronic band structures obtained from PBE and mBJLDA functionals for spin down are narrow semiconductor and semiconductor, respectively. For the spin-up state, the Eg value decreases linearly after 5 GPa, while the Eg value increases linearly for the spin-down state. The real and imaginary parts of the dielectric function along the x, y, and z axes and the optical constants, such as the energy loss function, refractive index, reflectivity coefficient, and extinction coefficient are also calculated and presented.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844830","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

First-principles study on structural and electronic properties of Er-doped dysprosium orthovanadate oxide 掺铒氧化钒酸镝结构和电子性质的第一性原理研究

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-16 DOI: 10.1007/s12034-024-03363-5

Rachana Sain, Chandan Upadhyay

{"title":"First-principles study on structural and electronic properties of Er-doped dysprosium orthovanadate oxide","authors":"Rachana Sain, Chandan Upadhyay","doi":"10.1007/s12034-024-03363-5","DOIUrl":"10.1007/s12034-024-03363-5","url":null,"abstract":"<div>Comprehensive structural and electronic properties of zircon-type ternary-metal oxide, dysprosium orthovanadate, doped with varying concentrations of Er have been investigated using first-principles density functional theory (DFT). Furthermore, the significance of substitutional site doping has been elucidated, revealing that Er incorporation can profoundly alter the structural and electronic characteristics of DyVO4. Replacing Er atoms with Dy atoms through substitutional doping reduces the band gap to 2.79 eV compared to the pure zircon-type dysprosium vanadate oxide’s band gap value of 2.87 eV. Cohesive energy of Er-doped DyVO4 oxide has also been computed at the ab initio level of calculation. Partial density of states’ (PDOS) calculations of all configurations, suggest that the doping element Er exhibits favourable chemical interactions with the host metal oxide, DyVO4. Electronic bands near the zero-energy or Fermi level strongly originate from the molecular orbitals of O, V and Dy atoms. Still, we have found that cation substitution at Dy ions’ site largely influences these electronic states and decreases band gap energy value. Consequently, by adjusting concentration of the dopant, the band gap of DyVO4 oxide can be finely tuned to achieve specific desired levels, which is suitable for electronic applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826260","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 investigation and red emission intensity enhancement in Sm3+/Eu3+-doped/co-doped KSrPO4 phosphors: effect of charge compensation Sm3+/Eu3+掺杂/共掺杂KSrPO4荧光粉的结构研究和红发射强度增强：电荷补偿效应

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-16 DOI: 10.1007/s12034-024-03350-w

A V Bharati, Sudha Ramnath

引用次数: 0