Advanced Powder Materials最新文献_第10页

Insight into the self-discharge suppression of electrochemical capacitors: Progress and challenges 电化学电容器自放电抑制研究进展与挑战

Advanced Powder Materials Pub Date : 2023-01-01 DOI: 10.1016/j.apmate.2022.100075

Wenxu Shang, Wentao Yu, Xu Xiao, Yanyi Ma, Yi He, Zhongxi Zhao, Peng Tan

引用次数: 27

Towards understanding metallurgical defect formation of selective laser melted wrought aluminum alloys 了解选择性激光熔化变形铝合金的冶金缺陷形成

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100035

Jinliang Zhang , Weihao Yuan , Bo Song , Shuo Yin , Xiaobo Wang , Qingsong Wei , Yusheng Shi

{"title":"Towards understanding metallurgical defect formation of selective laser melted wrought aluminum alloys","authors":"Jinliang Zhang , Weihao Yuan , Bo Song , Shuo Yin , Xiaobo Wang , Qingsong Wei , Yusheng Shi","doi":"10.1016/j.apmate.2022.100035","DOIUrl":"10.1016/j.apmate.2022.100035","url":null,"abstract":"<div><p>The formation of balling, porosity and cracking defects is a vital obstacle in selective laser melting of wrought Al alloys. However, it lacks systematic research on the origins of these imperfections. Herein, the formation mechanisms and avoidance methods of metallurgical defects in slective laser melting (SLM)-processed Al–Cu–Mg alloy were investigated by numerical simulation and microstructure characterization. Process optimization by altering laser energy density can effectively suppress balling and porosity, thus enhancing relative density. Cracking results from the stress concentration and columnar grains arise due to the rapid cooling process during SLM. The methods that promote the columnar-to-equiaxed grain transition, such as microalloying by Sc/Zr/Ti elements, co-incorporation of ceramic particles and introducing ultrasound, can effectively enhance the cracking resistance and mechanical properties of wrought Al alloys.</p></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772834X22000185/pdfft?md5=c69199b70b8538df7450d729410a2fbd&pid=1-s2.0-S2772834X22000185-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85320693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Research progresses in flow field of close-coupled atomizer and atomization mechanism 紧耦合雾化器流场及雾化机理的研究进展

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100096

Min Zhang, Zhaoming Zhang, Qiusheng Liu

引用次数: 0

Polyurethane/perovskite quantum dot elastomer composite with high stability and self-repairable properties 具有高稳定性和自修复性能的聚氨酯/钙钛矿量子点弹性体复合材料

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100036

Siqi Zhan , Wenhe Ding , Zhongliang Sun , Wei Li , Tiening Xu , Shiwei Wang , Mingyao Zhang

引用次数: 10

Interstitial strengthening in f.c.c. metals and alloys 氟化金属和合金的间隙强化

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100034

Ian Baker

{"title":"Interstitial strengthening in f.c.c. metals and alloys","authors":"Ian Baker","doi":"10.1016/j.apmate.2022.100034","DOIUrl":"10.1016/j.apmate.2022.100034","url":null,"abstract":"<div><p>In this short review, we highlight instances where interstitials have been shown to substantially increase the yield strength and work-hardening rate (WHR) of f.c.c. alloys, particularly high entropy alloys, medium entropy alloys, TWIP steels and stainless steels. However, the common practice of describing interstitial strengthening in f.c.c. alloys using models that are used to explain substitutional strengthening appears to be neither appropriate nor accurate. Here we suggest, based on the literature, that the yield strength increase due to interstitials in f.c.c. alloys is more appropriately described by a linear dependence on the concentration: due to a paucity of experimental studies, the dependence of the yield strength and WHR on misfit parameters is currently unclear. Thus, the source of the strengthening remains unclear. A feature that has been observed in several f.c.c. alloys is that interstitial additions lead to a change from wavy to planar slip although the origin of this change, which may be related to changes in stacking fault energy as well as other factors, remains unclear. The paper concludes by outlining areas of future research, including the need to develop a new model for interstitial strengthening in f.c.c. alloys.</p></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772834X22000173/pdfft?md5=8f1d4a544d57b51cf0bd50d64fcb5482&pid=1-s2.0-S2772834X22000173-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82294326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Single-atom zinc catalyst for co-production of hydrogen and fine chemicals in soluble biomass solution 可溶生物质溶液中氢和精细化学品协同生产的单原子锌催化剂

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100058

Jiliang Ma , Xinze Li , Yancong Li , Gaojie Jiao , Hang Su , Dequan Xiao , Shangru Zhai , Runcang Sun

{"title":"Single-atom zinc catalyst for co-production of hydrogen and fine chemicals in soluble biomass solution","authors":"Jiliang Ma , Xinze Li , Yancong Li , Gaojie Jiao , Hang Su , Dequan Xiao , Shangru Zhai , Runcang Sun","doi":"10.1016/j.apmate.2022.100058","DOIUrl":"10.1016/j.apmate.2022.100058","url":null,"abstract":"<div><p>Single-atom photocatalysts (SAPCs) have attracted great interests due to their remarkable atom utilization efficiency, excellent activity, and selectivity, yet no application in synchronous biorefinery and water splitting. Here, efficient SAPCs based on atomically dispersed Zn atoms on carbon nitride (named Zn−mCN) were produced. Experiments verified that Zn−mCN has widened adsorption range of visible-light and lowered ability of electron−hole recombination, leading to excellent photocatalytic redox activity for synchronous biorefinery and water splitting to co-produce lactic acid (selectivity up to 91.0%) and hydrogen (∼15898.8 μmol g<sup>−</sup><sup>1</sup> h<sup>−</sup><sup>1</sup>). This system has excellent universality for small- molecule monosaccharides and macromolecular xylan. Poisoning experiments showed that h<sup>+</sup>, <sup>1</sup>O<sub>2</sub>, ·O<sub>2</sub><sup>−</sup> and ·OH can promote the simultaneous production of lactic acid and hydrogen. This work realized full utilization of whole redox reaction and provided a novel strategy for efficient and concomitant production of hydrogen and value-added chemicals from biomass-derived feedstocks aqueous solutions.</p></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772834X22000410/pdfft?md5=22f1486c8576395be23a075869e95a08&pid=1-s2.0-S2772834X22000410-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86729467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Synthesis and application of silver and copper nanowires in high transparent solar cells 银、铜纳米线在高透明太阳能电池中的合成与应用

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100045

Jinpeng Yang , Fayin Yu , Anran Chen , Shuwen Zhao , Yao Zhou , Shusheng Zhang , Tao Sun , Guangzhi Hu

引用次数: 11

Erratum regarding previously published articles 关于以前发表的文章的勘误

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100078

引用次数: 0

Designing carbon anodes for advanced potassium-ion batteries: Materials, modifications, and mechanisms 设计先进钾离子电池的碳阳极:材料、修饰和机制

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/j.apmate.2022.100057

Xuehui Wang, Huanlei Wang

{"title":"Designing carbon anodes for advanced potassium-ion batteries: Materials, modifications, and mechanisms","authors":"Xuehui Wang, Huanlei Wang","doi":"10.1016/j.apmate.2022.100057","DOIUrl":"10.1016/j.apmate.2022.100057","url":null,"abstract":"<div><p>Recently, the limited abundance and uneven geographical distribution of Li resources seriously hamper the growing demand for lithium-based energy storage devices. In this regard, potassium-ion batteries (KIBs) sharing similar “rocking chair” working principles with lithium-ion batteries have started to attract increasing attention due to their high energy density and abundant potassium resources. Carbon material is considered to show great potential for using as high-performance anode in KIBs. However, it is still a challenge to simultaneously achieve satisfactory specific gravimetric and volumetric capacities, high initial Coulombic efficiency, superior rate performance, and excellent cycle stability due to the sluggish reaction kinetics of the large-sized K-ions. Herein, we summarize the latest research achievements of different types of carbon anodes for KIBs, including graphite, graphene, hard carbon, soft carbon, and carbon nanotubes, in which the key factors affecting the electrochemical performance are explored. Importantly, the alternative strategies for addressing the low gravimetric/volumetric capacity and low initial Coulombic efficiency of carbons are thoroughly emphasized. Finally, the critical issues, challenges, and perspectives are proposed to show the development direction of KIBs. We hope this review can provide researchers with new ideas to design high-performance carbon materials and give insightful perspectives to accelerate the application of carbon electrodes for KIBs.</p></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772834X22000409/pdfft?md5=2a591879b38381616d97d4be35359f3d&pid=1-s2.0-S2772834X22000409-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82804051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 36

ToC ToC

Advanced Powder Materials Pub Date : 2022-10-01 DOI: 10.1016/S2772-834X(22)00068-9

引用次数: 0