Progress in Natural Science: Materials International最新文献_第6页

Large focal length planar focusing of Dyakonov polaritons in hyperbolic metamaterial 双曲超材料中迪雅可诺夫极化子的大焦距平面聚焦

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-08-01 DOI: 10.1016/j.pnsc.2024.06.003

引用次数: 0

Construction of plum-branch-like CoSe2@N-Doped carbon/carbon fiber with dual protective mechanisms for enhanced lithium storage 构建具有双重保护机制的梅花状 CoSe2@N 掺杂碳/碳纤维，以增强锂存储能力

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.04.003

Ying Wang, Ming Zhang, Lei Chen, Yanjuan Li, Qingqing Wang, Xiaobin Wu, Lingdi Shen, Xiao Yan

{"title":"Construction of plum-branch-like CoSe2@N-Doped carbon/carbon fiber with dual protective mechanisms for enhanced lithium storage","authors":"Ying Wang, Ming Zhang, Lei Chen, Yanjuan Li, Qingqing Wang, Xiaobin Wu, Lingdi Shen, Xiao Yan","doi":"10.1016/j.pnsc.2024.04.003","DOIUrl":"https://doi.org/10.1016/j.pnsc.2024.04.003","url":null,"abstract":"<div>Cobalt selenide (CoSe2) emerges as a highly promising anode material for lithium-ion batteries (LIBs) owing to its high theoretical capacity and cost-effectiveness. Despite these merits, its practical utilization faces challenges stemming from substantial volume fluctuations and limited electronic conductivity. To tackle these issues, a plum-branch-like structure of CoSe2@N-doped carbon that embedded in one-dimensional N-doped carbon fibers (CoSe2@NC/CFs), is successfully synthesized through an in-situ confinement method. Well-defined CoSe2@NC nanoparticles, featuring diameters between 20∼30 nm, are uniformly dispersed on both the inner and outer surfaces of the carbon fibers. The distinctive architecture of CoSe2@NC/CFs ensures an increased number of active sites, elevated electronic conductivity, alleviated volume expansion, and accelerated reaction kinetics. Consequently, the CoSe2@NC/CFs exhibits remarkable cycling performance and exceptional rate capability. Operating at a current density of 1000 mA g−1, the CoSe2@NC/CFs anode sustains a capacity of 664 mA h g−1 with no obvious capacity decay over 500 cycles. Even at a high current density of 5000 mA g−1, it maintains a capacity of 445 mA h g−1 with a mere 0.02 % capacity decay per cycle. This study introduces a novel approach to anode material design, showcasing significant advancements in lithium-ion battery technology.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Roles of functionalized nanoparticles in the performance improvement of proton-exchange membranes used in low- and intermediate-temperature hydrogen fuel cells: A review 功能化纳米粒子在改善中低温氢燃料电池质子交换膜性能中的作用：综述

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.04.004

Abdul Salam, Oksana Zholobko, Xiang-Fa Wu

引用次数: 0

Improving strength-ductility synchronously of Electron beam welded Ti600/Ti2AlNb joint through isothermal forging 通过等温锻造同步提高电子束焊接 Ti600/Ti2AlNb 接头的强度和电导率

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.04.012

Yongqiang Zhang , Xiangyi Xue , Guoming Zheng , Jingli Zhang , Huiming Li , Shewei Xin

{"title":"Improving strength-ductility synchronously of Electron beam welded Ti600/Ti2AlNb joint through isothermal forging","authors":"Yongqiang Zhang , Xiangyi Xue , Guoming Zheng , Jingli Zhang , Huiming Li , Shewei Xin","doi":"10.1016/j.pnsc.2024.04.012","DOIUrl":"10.1016/j.pnsc.2024.04.012","url":null,"abstract":"<div>Different alloys can be flexibly combined to meet the performance needs of different parts of the compressor disc by welding process. However, achieving a good combination of dissimilar alloys with different mechanical properties has always been a research difficulty. In this work, a Ti600/Ti2AlNb joint was fabricated through electron beam welding and an isothermal forging was used to optimized its microstructure and mechanical performance. The isothermal forging process increases the ultimate tensile strength (UST) and yield strength (YS) of the Ti600/Ti2AlNb joint by ∼18 %, while ∼2.5 times the ductility. It is indicated that before forging, the Ti600/Ti2AlNb joint exhibits a much lower strength than that of Ti600 matrix, whereas the opposite is true after isothermal forging. The isothermal forging broken the coarse columnar grains of Ti600/Ti2AlNb joint and render to an equiaxed B2 structure in which the acicular α2 and O phase are precipitated, resulting a synchronous enhancement of strength and ductility. This work may pave an effective routine for improving the comprehensive mechanical properties of dissimilar metal welding joint.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141054398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 titanium on the wettability between Fe-P-Ti alloy and Al2O3 substrate 钛对 Fe-P-Ti 合金与 Al2O3 基底之间润湿性的影响

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.05.003

Rui Wang , Shengjie Bai , Xu Chen , Likui Xie , Zhiqiang Yu , Yang Kang , Yihong Li , Yong Hu , Zhiyue Shi , Zhijie Yan

{"title":"Effect of titanium on the wettability between Fe-P-Ti alloy and Al2O3 substrate","authors":"Rui Wang , Shengjie Bai , Xu Chen , Likui Xie , Zhiqiang Yu , Yang Kang , Yihong Li , Yong Hu , Zhiyue Shi , Zhijie Yan","doi":"10.1016/j.pnsc.2024.05.003","DOIUrl":"10.1016/j.pnsc.2024.05.003","url":null,"abstract":"<div>It is of significance that the wettability between the molten alloy and the Al2O3 affects the inclusion removal, nozzle clogging and refractory erosion. In the present work, the wettability between the Al2O3 substrate and Fe–P–Ti alloys with different Ti content was investigated by using the sessile droplets method. The interfacial characteristics were investigated by scanning electron microscope (SEM). The contact angles between the sintered Al2O3 substrate and Fe–P–Ti alloys with 0, 0.05, 0.10 and 0.15 wt% Ti are 100.1°, 97.3°, 94.5° and 90.5°, respectively. The oxidation of [Al] and [Ti] in the molten alloys leads to the formation of the oxides on the droplets. With the increase of Ti content in the Fe–P–Ti alloys, the formed oxides change from Al2O3 to Ti-containing oxides. The reaction between [Ti] and Al2O3 substrate in the interface results in the formation of Ti-containing oxides. The quantity of the interfacial oxides increases with the increase of Ti content in the alloys. As a result, the synergetic effect of the formation of the interfacial products and the oxides on the surface of droplets leads to the decrease of the contact angles between the Al2O3 substrate and Fe–P–Ti alloys due to the increase of Ti content.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141036896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Synergistically enhanced dielectric, insulating and thermally conductive performances of sandwich PMMA based dielectric films 夹层 PMMA 基介电薄膜的介电、绝缘和导热性能协同增强

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.05.004

Dongmei Zhang , Yufan Li , Yuchao Li , Zhonggui Sun , Hanxue Zhu , Lujia Yang , Yanhu Zhan , Yankai Li , Shi Wang , Jun-Wei Zha

{"title":"Synergistically enhanced dielectric, insulating and thermally conductive performances of sandwich PMMA based dielectric films","authors":"Dongmei Zhang , Yufan Li , Yuchao Li , Zhonggui Sun , Hanxue Zhu , Lujia Yang , Yanhu Zhan , Yankai Li , Shi Wang , Jun-Wei Zha","doi":"10.1016/j.pnsc.2024.05.004","DOIUrl":"https://doi.org/10.1016/j.pnsc.2024.05.004","url":null,"abstract":"<div>A tri-layered (B-G-B) dielectric films were simply prepared by alternatively spin-coating boron nitride/polymethylmethacrylate (BN/PMMA, B) and graphene nanosheets (GNS/PMMA, G) compound solutions. The structure, morphology, thermal conductivity, and particularly the dielectric and relaxation behaviors were systematically studied. Results showed that a good exfoliation and dispersion of BN and GNS can be simply achieved through intensive mechanical compounding with PMMA in the internal mixer. The dielectric constant and breakdown strength of the obtained 1-3-1 (B-G-B) sandwich composite film reached 4.3 (@1 kHz) and 458.6 kV/mm, being 119 % and 113 % higher than that of pure PMMA, respectively. Furthermore, the overall thermal conductivity of sandwich 1-3-1 composite increased by 112 % due to the addition of thermally conductive BN and GNS. The sandwich design strategy provided an effective way of achieving good permittivity, high insulation, and improved thermal conductivity simultaneously, showing potential applications in the miniaturization and integration of electronic devices.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Accurate identification of glass crystallization helps in selecting high electronic conductivity materials 准确识别玻璃结晶有助于选择高电子传导性材料

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.04.013

Fanhou Kong , Shuli Li , Suoqi Zhao , Huiwen Li , Lin Li , Zhenting Zang , Rui Zhang , Hongrui Liu , Lehan Wang , Changjiu Li , Keng H. Chung

{"title":"Accurate identification of glass crystallization helps in selecting high electronic conductivity materials","authors":"Fanhou Kong , Shuli Li , Suoqi Zhao , Huiwen Li , Lin Li , Zhenting Zang , Rui Zhang , Hongrui Liu , Lehan Wang , Changjiu Li , Keng H. Chung","doi":"10.1016/j.pnsc.2024.04.013","DOIUrl":"https://doi.org/10.1016/j.pnsc.2024.04.013","url":null,"abstract":"<div>Though the current research on vanadium-based glass electrodes has made great progress, the conductivity theory of V-based glasses has not been obviously improved and crystals cannot be positioned precisely. The changes in the valence state of V3+, V4+ and V5+ are regulated by the strong reducing agent Fe2P to realize valence bond transformation of the amorphous electrode, explore the redox process of multi-electron reactions and further optimize the conductivity of electrode materials. VPFe2 and VPFe3 precipitate VO2 crystals and VPFe4 precipitates VO2 and V6O11 crystals. Electron back-scattered diffraction was used to accurately identify the distribution and specific positions of both types of crystals. V6O11 crystals exhibit a strong texture according to pole figure and inverse pole figure. XPS reveals that Fe2P and V2O5, undergo a redox reaction during the high-temperature melting process, where V5+ is reduced to V4+ and V3+ and V4+ renders a positive influence on conductivity. The addition of Fe2P increases the content of V4+ in the glass and VPFe3 glass contains the highest content of V4+, leading to the highest electronic conductivity. V2O5 transforms into VO2 crystals and VO2 transforms into V6O11 with the increase of Fe2P content. The type of nanocrystal precipitation in glass affects electronic conductivity.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Advancements in synthetic and electrocatalytic exploitation of guest-host intercalated 2D materials 客体插层二维材料的合成和电催化利用进展

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.04.008

Qian Yang , Kun Wang , Meiling Zhang , Feihong Du , Jiayang Li , Chen Zheng , Jinyang Li

{"title":"Advancements in synthetic and electrocatalytic exploitation of guest-host intercalated 2D materials","authors":"Qian Yang , Kun Wang , Meiling Zhang , Feihong Du , Jiayang Li , Chen Zheng , Jinyang Li","doi":"10.1016/j.pnsc.2024.04.008","DOIUrl":"10.1016/j.pnsc.2024.04.008","url":null,"abstract":"<div>The emergence and development of layered materials have shown great promise for many applications, especially in recent years, the effective modulation of the physicochemical properties of layered materials by intercalation chemistry has led to great potential in material design. In this paper, we review the reaction mechanisms of different guest species (metal atoms/ions, organic molecules/ions, inorganic molecules and inorganic ions) intercalated into the host layered materials as well as the recent progress. It is also reviewed that layered intercalated materials with controllable structure and tunable physicochemical properties can be prepared through the occurrence of interactions between different subjects and guests. The specific applications of intercalation chemistry in the field of electrocatalysis, such as the hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction and other electrocatalytic reactions, are then discussed, with emphasis on the mechanism of the improved catalytic activity and stability of the layered materials after guest intercalation.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140768359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Evolution and control of inclusions of Ti-bearing ultra-low carbon steel during the steelmaking process 炼钢过程中含钛超低碳钢夹杂物的演变与控制

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.05.007

Wenjun Ma , Bin Chen , Haibo Li , Lixia Hao , Jianguan Chen , Yi Jia , Daozheng Liu

{"title":"Evolution and control of inclusions of Ti-bearing ultra-low carbon steel during the steelmaking process","authors":"Wenjun Ma , Bin Chen , Haibo Li , Lixia Hao , Jianguan Chen , Yi Jia , Daozheng Liu","doi":"10.1016/j.pnsc.2024.05.007","DOIUrl":"10.1016/j.pnsc.2024.05.007","url":null,"abstract":"<div>This article investigates the evolution and control of inclusions in the smelting process of titanium containing ultra-low carbon steel. Through industrial experiments, the influence of oxygen content before aluminum addition on inclusions in ultra-low carbon IF steel was explored, and the evolution process of inclusions was studied. The microstructure of different types of inclusions was observed using three-dimensional analysis techniques. Research has found that the oxygen content before aluminum addition has no significant effect on the final oxygen content. However, under low aluminum and low oxygen conditions, the size of inclusions formed is small and difficult to float and remove. Even if the cycle time is extended, the AF index of inclusions remains at a high level. Through three-dimensional morphology analysis of inclusions, it was found that alumina formed under high aluminum and high oxygen conditions is very dense, while inclusions are relatively loose under low aluminum and low oxygen conditions. In addition, through the analysis of aluminum oxygen supersaturation before the formation of aluminum oxide inclusions, it was found that due to the low oxygen content, the nucleation rate of aluminum oxide in the early stage of inclusion formation is relatively low, and the inclusions grow along the trajectory of oxygen, ultimately forming polycrystalline aluminum oxide inclusions. This article also observed for the first time the initial three-dimensional morphology of Al Ti inclusions, providing a theoretical basis for further optimizing smelting processes and controlling inclusions.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141135783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Research progress and prospects on the formation mechanism of macrosegregation and shrinkage porosity in large steel ingots 大型钢锭中大偏析和缩孔形成机理的研究进展与展望

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2024-06-01 DOI: 10.1016/j.pnsc.2024.05.009

Xiang Liu, Chaojie Zhang, Shaowei Hu, Liqiang Zhang, Haichuan Wang

{"title":"Research progress and prospects on the formation mechanism of macrosegregation and shrinkage porosity in large steel ingots","authors":"Xiang Liu, Chaojie Zhang, Shaowei Hu, Liqiang Zhang, Haichuan Wang","doi":"10.1016/j.pnsc.2024.05.009","DOIUrl":"https://doi.org/10.1016/j.pnsc.2024.05.009","url":null,"abstract":"<div>Macrosegregation and shrinkage porosity in large steel ingots are key factors restricting the homogenization of large cast and forged parts. Due to the complex mechanisms of their formation, they have always been challenging issues in the research on solidification control of large steel ingots. The purpose of this review is to systematically revisit the research progress on the mechanisms of macrosegregation and shrinkage porosity formation in large steel ingots, focusing on the mechanisms of formation of 'A' type segregation, positive segregation at the top, and negative segregation at the bottom, and their impact on the quality of steel ingots. At the same time, the conditions and influencing factors for the formation of shrinkage porosity are analyzed in detail, and the interaction between macrosegregation and shrinkage porosity during the solidification process of steel ingots is discussed. Based on existing research results and challenges, prospects for future research directions are proposed, emphasizing the development of high-precision numerical simulation techniques and experimental research methods to deeply understand the internal mechanisms of segregation and porosity formation, providing a scientific basis for formulating effective control strategies.</div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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