Bulletin of Materials Science最新文献_第9页

Understanding electrochemical chlorine evolution process of ultrafine spinel cobalt oxide nanoparticles 了解超细尖晶氧化钴纳米粒子的电化学氯演化过程

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-26 DOI: 10.1007/s12034-024-03347-5

Kritika Sood, K K Bhasin, Menaka Jha

引用次数: 0

Influence of alloying element Nb on the γ′ phase structure and mechanical properties of Co–8.8Al–9.8W alloy 合金元素 Nb 对 Co-8.8Al-9.8W 合金的γ′相结构和力学性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-26 DOI: 10.1007/s12034-024-03297-y

Wenjie Geng, Tongchao Wang, Yangtao Xu

引用次数: 0

Study of structure and properties of dual-size grain copper matrix composites prepared by NbC and rare earth element La 用 NbC 和稀土元素 La 制备的双尺寸晶粒铜基复合材料的结构和性能研究

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-23 DOI: 10.1007/s12034-024-03332-y

Ming Wen, Jingwei Li, Zengwu Zhao

引用次数: 0

Investigation on non-uniform oxidation behaviour in dendritic and interdendritic regions in a single-crystal Ni-based superalloy 关于单晶镍基超级合金树枝状和树枝状间区域非均匀氧化行为的研究

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-22 DOI: 10.1007/s12034-024-03333-x

Ze-Lei Wang, Ye-Bing Hu, Tie-Shan Cao, Cong-Qian Cheng, Jie Zhao

{"title":"Investigation on non-uniform oxidation behaviour in dendritic and interdendritic regions in a single-crystal Ni-based superalloy","authors":"Ze-Lei Wang, Ye-Bing Hu, Tie-Shan Cao, Cong-Qian Cheng, Jie Zhao","doi":"10.1007/s12034-024-03333-x","DOIUrl":"10.1007/s12034-024-03333-x","url":null,"abstract":"<div>Oxidation behaviour of a third-generation Ni-based single-crystal superalloy was investigated at 900 and 1050°C by scanning electron microscopy, X-ray diffraction and electron probe microanalysis. The alloy showed non-uniform oxidation behaviour in dendritic and interdendritic regions. Re and W were enriched in the dendritic region, leading to the formation of Re2O7 and WO3, which were easy to volatile. As a result, the film in the dendritic region was loose and contained number of pores, providing an easy path for the outward diffusion of cations and inward diffusion of O2−. Moreover, the high Pilling–Bedworth ratio of Ta2O5 accumulated in the dendrite region, resulting in the occurrence of cracking and cyclic oxidation behaviour. Eventually, the synergistic effect between the loose oxide film and cyclic oxidation leads to more severe oxidation behaviour in dendritic regions of the alloy compared to interdendritic regions.<h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453065","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

Study of synergistic nanostructures of NiO/ZnO and their composite as high-performance electrodes for supercapacitor 作为超级电容器高性能电极的氧化镍/氧化锌协同纳米结构及其复合材料的研究

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-22 DOI: 10.1007/s12034-024-03308-y

Riya Malik, M P Geethu Lekshmi, Ankur Rana, Megha Rana, R Srivastava, C K Suman

{"title":"Study of synergistic nanostructures of NiO/ZnO and their composite as high-performance electrodes for supercapacitor","authors":"Riya Malik, M P Geethu Lekshmi, Ankur Rana, Megha Rana, R Srivastava, C K Suman","doi":"10.1007/s12034-024-03308-y","DOIUrl":"10.1007/s12034-024-03308-y","url":null,"abstract":"<div>Supercapacitors’ high power density and extended life cycle have drawn a lot of interest in energy storage devices. In this study, different nanostructures of nickel oxide (NiO) and zinc oxide (ZnO) were synthesized using the hydrothermal method by treating the corresponding metal precursors in a high-temperature aqueous solution. The XRD and SEM were used to analyse crystal structure and morphology, respectively. The absorption of ZnO and NiO materials is found to be in the visible range of 300–400 and 200–300 nm, respectively. The band gap of ZnO was calculated as 3.04 eV, while that of NiO was 3.93 eV. The supercapacitor electrode was fabricated on nickel foam with developed nanostructure and carbon materials. The composite ZnO and NiO materials showed an increase in capacitance compared to the bare NiO and ZnO electrodes. This enhancement could be related to improved charge transfer kinetics and increased surface area for electrolyte interaction. Galvanostatic charge–discharge, cyclic voltammetry and electrochemical impedance spectroscopy measurements were conducted to assess the electrochemical efficiency of nanomaterials and their composites. At the current density of 2 A g−1, the specific capacitance of the NiO/ZnO composite is found to be 351.54 F g−1, which is ~2 times of the bare NiO and ~3.34 times of bare ZnO. The maximum energy density of ZnO nanoparticles, NiO nanoflakes and the composite are found to be 3.96, 6.58 and 13.90 Wh kg-1, respectively. The charge storage process is the result of diffusion and redox reactions. This paper explores a binary oxide composites method for creating efficient supercapacitor electrode materials.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453067","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 particle size of cubic boron nitride powders on the properties of polycrystalline cubic boron nitride composites 立方氮化硼粉末的粒度对多晶立方氮化硼复合材料性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-22 DOI: 10.1007/s12034-024-03326-w

Changjiang Xiao, Haoyu Zheng, Hongjun Tao, Jinming Ma, qunfei Zhang, Lihui Tang

{"title":"Effect of particle size of cubic boron nitride powders on the properties of polycrystalline cubic boron nitride composites","authors":"Changjiang Xiao, Haoyu Zheng, Hongjun Tao, Jinming Ma, qunfei Zhang, Lihui Tang","doi":"10.1007/s12034-024-03326-w","DOIUrl":"10.1007/s12034-024-03326-w","url":null,"abstract":"<div>Polycrystalline cubic boron nitride (PcBN) composites were prepared through high-temperature and high-pressure (HTHP) sintering process. Cubic boron nitride (cBN) powders with particle sizes of 0.2, 1, 3, and 8 μm were selected as raw materials, and Al-Co-TiN was employed as a binder. The effect of particle size of initial cBN powders on the microstructure, relative density, flexural strength, microhardness, fracture toughness and abrasive ratio of sintered PcBN composite were systematically studied. The results showed that synthesized products were mostly made of cBN, TiN, AlN, TiB2 and CoN phases. The mechanical properties of sintered PcBN composites first increased and then decreased with a reduction in the particle size of cBN powders. When the particle size of initial cBN powder was 1 µm, the binder was observed to be evenly distributed around the cBN grains in the sintered product. Moreover, there was a close bonding between cBN grains and the binder in the sintered product when the particle size of initial cBN powders was 1 µm, consequently, the optimal mechanical properties were achieved. The maximum values for relative density, flexural strength, microhardness, fracture toughness and abrasive ratio were 99.1%, 607 MPa, 47.06 GPa, 6.52 MPa·M1/2 and 7125, respectively.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453133","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

Blend membranes of sulphonated poly(arylene ether sulphone) and sulphonated polybenzimidazole and their characterization for desalination applications 用于海水淡化的磺化聚（芳基醚砜）和磺化聚苯并咪唑共混膜及其特性分析

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-22 DOI: 10.1007/s12034-024-03322-0

Kaarthick Raaja Venkatachalam, Sachin M B Gautham, Anegondi Nateriachyuth, Jegatha Nambi Krishnan

{"title":"Blend membranes of sulphonated poly(arylene ether sulphone) and sulphonated polybenzimidazole and their characterization for desalination applications","authors":"Kaarthick Raaja Venkatachalam, Sachin M B Gautham, Anegondi Nateriachyuth, Jegatha Nambi Krishnan","doi":"10.1007/s12034-024-03322-0","DOIUrl":"10.1007/s12034-024-03322-0","url":null,"abstract":"<div>Upon polycondensing, the monosodium salt of 2-sulphoterepthalic acid and 3,3′-diaminobenzidine resulted in sulphonated polybenzimidazole (s-p-PBI; amphiphilic polymer). The amphiphilic polymer was blended with commercially available sulphonated poly(arylene ether sulphone) (SPAES; acid polymer; IEC = 2.08 meq g−1). The s-p-PBI content in blend composition is varied from 2.5 to 30% (w/w). ATR-FTIR spectroscopy and TG analysis were examined to identify the interactions between the polymers upon blending. Cross-sectional morphology was analysed through SEM. With amphiphilic polymer addition, chlorine (hypochlorite) stability decreased and tensile strength improved. All the blend membranes showed improved water transport or restricted salt permeability than the pristine membrane (acid polymer). Water diffusivity permeability (Pw) of blend membrane AC-AM-97.5 (i.e., 97.5% (w/w) of SPAES and 2.5% (w/w) of s-p-PBI) is 1.285 cm2 s−1, while the pristine membrane is 0.864 cm2 s−1. NaCl permeability selectivity (Pw/Ps) of AC-AM-97.5 is 0.208 × 103, whereas pristine membrane shows 0.102 × 103.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453066","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

Revealing electrochemical performance of Ni doping LiFePO4 composite 揭示掺杂镍的磷酸铁锂复合材料的电化学性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-18 DOI: 10.1007/s12034-024-03295-0

Guimin Zhou, Peng Wang, Zengmou Li, Yin Li, Yaochun Yao

{"title":"Revealing electrochemical performance of Ni doping LiFePO4 composite","authors":"Guimin Zhou, Peng Wang, Zengmou Li, Yin Li, Yaochun Yao","doi":"10.1007/s12034-024-03295-0","DOIUrl":"10.1007/s12034-024-03295-0","url":null,"abstract":"<div>In this work, Ni2+ was doped into the crystal lattice of LiFePO4 to improve the electrochemical performance. Lengths of the Li–O bonds in LiFe0.98Ni0.02PO4/C (2% NiSO4-doped LiFePO4) is longer than that of the bare LiFePO4 sample, the micromorphology of LiFe0.98Ni0.02PO4/C sample becomes uniform, and the Ni2+ doped into LiFePO4 expands the crystal plane spacing, which is conducive to Li+ diffusion. Amongst all the doped samples, the Li+ diffusion coefffcient of LiFe0.98Ni0.02PO4/C is the largest, and the redox peak of LiFe0.98Ni0.02PO4/C is more symmetrical, sharper and narrower, indicating that the proper amount of Ni2+-modified LiFePO4 can improve the electrochemical performance. Specific discharge capacity at 1C is 152 mAh g−1 when the doping amount is 2%. Additionally, after 200 cycles at 2C, the discharge specific capacity can be attained at 140 mAh g−1 and capacity retention rate reached 98%.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451124","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

Exploring the synergistic potential of PVB: KCl composite electrolyte films for enhanced performance in solid-state potassium batteries 探索 PVB：KCl 复合电解质薄膜的协同潜力，以提高固态钾电池的性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-14 DOI: 10.1007/s12034-024-03340-y

K Nivetha, K Vijaya Kumar, N Krishna Jyothi, K Venkataratnam Kamma

{"title":"Exploring the synergistic potential of PVB: KCl composite electrolyte films for enhanced performance in solid-state potassium batteries","authors":"K Nivetha, K Vijaya Kumar, N Krishna Jyothi, K Venkataratnam Kamma","doi":"10.1007/s12034-024-03340-y","DOIUrl":"10.1007/s12034-024-03340-y","url":null,"abstract":"<div>Polyvinyl butyral (PVB) integrated with varying compositions of potassium chloride (KCl) was prepared through a solution-cast method in methanol, forming a PVB-based electrolyte film for solid-state potassium batteries. The incorporation of KCl into PVB matrix significantly altered the composite electrolyte film’s structural intricacies, bandgap modulation, thermal stability and facilitated functional group identification. Furthermore, the ionic conductivity of the PVB polymer electrolyte exhibited an initial enhancement followed by a subsequent reduction with the escalating ratio of KCl. Specifically, at 80 wt% PVB and 20 wt% KCl, its ionic conductivity reached a value of 1.87 × 10−5 S cm−1 at room temperature and 9.61 × 10−5 S cm−1 at 303 K temperature. The ion transference number, which denotes the relative ease with which potassium ions migrate within the PVB polymer-complexed electrolyte, was determined to be 0.98. Discharge tests on the cell, under 1.2 µA current and 2.1 V at room temperature, displayed an initial 9.16 µA h−1 discharge capacity.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430993","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

Doping-induced electronic transport properties in tetracene-based molecular device 四碳烯基分子器件中的掺杂诱导电子传输特性

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-10 DOI: 10.1007/s12034-024-03324-y

Sukhdeep Kaur, Rupendeep Kaur, Deep Kamal Kaur Randhawa, Rahul Sharma, Harmandar Kaur

引用次数: 0