Journal of Materials Research最新文献_第9页

Portland cement associated with niobium is evidenced by the presence of calcium crystals and biocompatibility in the rat subcutaneous tissue 与铌有关的硅酸盐水泥在大鼠皮下组织中的钙结晶和生物相容性证明了这一点

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-29 DOI: 10.1557/s43578-024-01349-x

Rafaela Alcindo Silva, Raphael Victor Silva Andrade, Agnes Andrade Martins, Valkleidson Santos de Araujo, Arnóbio Antônio da Silva Júnior, Ednaldo Gomes do Nascimento, Alcides de Oliveira Wanderley Neto, Gabriela de Souza Balbinot, Fabricio Mezzomo Collares, Ana Paula Negreiros Nunes Alves, Renata Ferreira de Carvalho Leitão, Conceição S. Martins Rebouças, Fábio Roberto Dametto, Rafael Rodrigues Lima, Salete Martins Alves, Aurigena Antunes de Araújo

{"title":"Portland cement associated with niobium is evidenced by the presence of calcium crystals and biocompatibility in the rat subcutaneous tissue","authors":"Rafaela Alcindo Silva, Raphael Victor Silva Andrade, Agnes Andrade Martins, Valkleidson Santos de Araujo, Arnóbio Antônio da Silva Júnior, Ednaldo Gomes do Nascimento, Alcides de Oliveira Wanderley Neto, Gabriela de Souza Balbinot, Fabricio Mezzomo Collares, Ana Paula Negreiros Nunes Alves, Renata Ferreira de Carvalho Leitão, Conceição S. Martins Rebouças, Fábio Roberto Dametto, Rafael Rodrigues Lima, Salete Martins Alves, Aurigena Antunes de Araújo","doi":"10.1557/s43578-024-01349-x","DOIUrl":"https://doi.org/10.1557/s43578-024-01349-x","url":null,"abstract":"This study evaluated the chemical, mechanical, and biocompatibility of Portland cement (PC) with different proportions of niobium oxide (Nb2O5). Five male Wistar rats were used. Four polyethylene tubes were placed on the dorsal subcutaneous tissue: one tube empty (NC), one tube MTA (Angelus®), one tube contained F6 (PC, Nb2O5 and CaSO4), and one tube F7 (PC, Bi2O3, Nb2O5 and CaSO4). After 60 days, animals were euthanized, and tubes were removed with the surrounding tissues. Inflammatory infiltrates were stained with hematoxylin–eosin. Mineralization was analyzed using Von Kossa staining and polarized light. The F6 showed small vessels and dispersed mononuclear inflammatory cells, score of 1 (1–2), p˃0.05 vs. NC 0.5 (0–1), and the absence of cell giants. Positive Von Kossa staining and birefringent structures under polarized light were observed with MTA, F6, and F7. The niobium oxide (Nb2O5), in association with Portland cement, exhibits calcium crystals and biocompatibility in rat subcutaneous tissue.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"49 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811341","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

Catalyzing oxygen reduction reaction with a worm-like oxide Ca3Co2O6 in solid-oxide fuel cells 在固态氧化物燃料电池中使用蠕虫状氧化物 Ca3Co2O6 催化氧还原反应

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-29 DOI: 10.1557/s43578-024-01345-1

Fushao Li, Yingxian Xu, Qingqing Wu, Deqiang Zhao, Mingsen Deng, Hengxiu Yang

{"title":"Catalyzing oxygen reduction reaction with a worm-like oxide Ca3Co2O6 in solid-oxide fuel cells","authors":"Fushao Li, Yingxian Xu, Qingqing Wu, Deqiang Zhao, Mingsen Deng, Hengxiu Yang","doi":"10.1557/s43578-024-01345-1","DOIUrl":"https://doi.org/10.1557/s43578-024-01345-1","url":null,"abstract":"A worm-like oxide Ca3Co2O6 was prepared by electrostatic spinning as a cathode material for solid-oxide fuel cells. Compared to the plain granular structure, the worm-like Ca3Co2O6 exhibits a desirable morphological organization and an enhanced electrochemical performance. At 1073 K, polarization resistance with the worm-like cathode is favorably reduced to 0.151 Ω cm2, and the power peak of the corresponding single cell reaches to 512 mW cm−2, showing a fast cathodic kinetics. By contrast, the polarization resistance with the plain cathode is 0.275 Ω cm2, and the power peak of the corresponding single cell is 406 mW cm−2. Under a constant voltage load of applied 0.6 V at 1023 K, cell power with the worm-like cathode maintains steadily from 420 to 400 mW cm−2 after 14 h of running time, showing a less fading rate, a more stable performance, and a better application prospect than the plain cathode.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>Electrostatic spinning of Ca3Co2O6 as the cathode material of solid-oxide fuel cells.\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"77 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811384","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 influence of cold rolling and hydroxyapatite coating on the mechanostructure, corrosion resistance, cell viability, and antibacterial activity of ZnCu biodegradable implants 冷轧和羟基磷灰石涂层对锌铜生物可降解植入体的机械结构、耐腐蚀性、细胞活力和抗菌活性的影响

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-26 DOI: 10.1557/s43578-024-01340-6

B. Aksakal, S. A. Karadogan, N. Aslan, F. Fidan, Y. Yilmazer, S. Sezek

引用次数: 0

Low-voltage short-channel MoS2 memtransistors with high gate-tunability 具有高栅极可调谐性的低压短沟道 MoS2 晶体管

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-26 DOI: 10.1557/s43578-024-01343-3

Stephanie E. Liu, Thomas T. Zeng, Ruiqin Wu, Vinod K. Sangwan, Mark C. Hersam

{"title":"Low-voltage short-channel MoS2 memtransistors with high gate-tunability","authors":"Stephanie E. Liu, Thomas T. Zeng, Ruiqin Wu, Vinod K. Sangwan, Mark C. Hersam","doi":"10.1557/s43578-024-01343-3","DOIUrl":"https://doi.org/10.1557/s43578-024-01343-3","url":null,"abstract":"Neuromorphic hardware promises to revolutionize information technology with brain-inspired parallel processing, in-memory computing, and energy-efficient implementation of artificial intelligence and machine learning. In particular, two-dimensional (2D) memtransistors enable gate-tunable non-volatile memory, bio-realistic synaptic phenomena, and atomically thin scaling. However, previously reported 2D memtransistors have not achieved low operating voltages without compromising gate-tunability. Here, we overcome this limitation by demonstrating MoS2 memtransistors with short channel lengths < 400 nm, low operating voltages < 1 V, and high field-effect switching ratios > 104 while concurrently achieving strong memristive responses. This functionality is realized by fabricating back-gated memtransistors using highly polycrystalline monolayer MoS2 channels on high-κ Al2O3 dielectric layers. Finite-element simulations confirm enhanced electrostatic modulation near the channel contacts, which reduces operating voltages without compromising memristive or field-effect switching. Overall, this work demonstrates a pathway for reducing the size and power consumption of 2D memtransistors as is required for ultrahigh-density integration.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"21 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140800293","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 porous silicon using magnesiothermic reduction of porous silica glass and electrode characteristics for lithium-ion batteries 利用镁热还原多孔硅玻璃制备多孔硅及锂离子电池电极特性

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-26 DOI: 10.1557/s43578-024-01344-2

Mina Deguchi, Kei Shinohara, Hironori Kobayashi, Kentaro Kuratani, Hikari Takahara, Haruhisa Shiomi, Arifumi Okada, Kohei Kadono

{"title":"Preparation of porous silicon using magnesiothermic reduction of porous silica glass and electrode characteristics for lithium-ion batteries","authors":"Mina Deguchi, Kei Shinohara, Hironori Kobayashi, Kentaro Kuratani, Hikari Takahara, Haruhisa Shiomi, Arifumi Okada, Kohei Kadono","doi":"10.1557/s43578-024-01344-2","DOIUrl":"https://doi.org/10.1557/s43578-024-01344-2","url":null,"abstract":"Magnesiothermic reduction was applied to porous silica glass grains with a characteristically interconnected pore structure. The prepared porous silicon maintained the morphology with pore size of approximately 30–40 nm, which was derived from the nanostructure of the starting silica glass. Medium-sized grains of the silica glass produced the largest silicon yield. This result could be explained based on the diffusion-controlled reaction mechanism, involving the reaction of SiO2 with Mg2Si to produce silicon. The electrochemical behavior was investigated using a coin-type cell composed of the prepared porous silicon–carbon mixtures and lithium foil electrodes. The initial charge and discharge capacities reached 1382 and 1187 mAh g−1, respectively, which were close to the theoretical value (1329 mAh g−1). After 50 charge/discharge cycles, 80% of the initial capacity is maintained. These results indicate that porous silicon derived from porous silica glass can be employed as an anode material for lithium-ion batteries.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"4 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140800217","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 on the microstructure and properties of AZ31 alloy by hot die forging extrusion 热模锻挤压法 AZ31 合金微观结构和性能研究

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-18 DOI: 10.1557/s43578-024-01333-5

Enci Niu, Kunmin Zhang, Jun Tong, Sihui Ouyang, Aitao Tang, Xianhua Chen, Liying Qiao, Yong Wang, Jia She, Fusheng Pan

引用次数: 0

Synthesis, characterization, and novel thermoelectric properties of Nb-based metal oxides XNb2O6 (X = Mg, Ca, Ba) for energy harvesting applications: Experimental and DFT insight 用于能量收集应用的铌基金属氧化物 XNb2O6（X = Mg、Ca、Ba）的合成、表征和新型热电特性：实验和 DFT 见解

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-18 DOI: 10.1557/s43578-024-01341-5

Akhlaq Ahmed, Ghulam Murtaza, Ahmad Ayyaz, Maleeha Shafiq, Hind Albalawi

{"title":"Synthesis, characterization, and novel thermoelectric properties of Nb-based metal oxides XNb2O6 (X = Mg, Ca, Ba) for energy harvesting applications: Experimental and DFT insight","authors":"Akhlaq Ahmed, Ghulam Murtaza, Ahmad Ayyaz, Maleeha Shafiq, Hind Albalawi","doi":"10.1557/s43578-024-01341-5","DOIUrl":"https://doi.org/10.1557/s43578-024-01341-5","url":null,"abstract":"The structural, electronic, and thermoelectric properties of Nb-based metal oxides XNb2O6 (X = Mg, Ca, and Ba) have been investigated using DFT and experimental methods for energy harvesting applications. The XRD confirmed the orthorhombic structure of the synthesized oxides. SEM observed the formation of well-shaped particles, and the presence of Mg, Ca, Ba, Nb, and O with the proper compositions was confirmed by EDS. TEM proved the polycrystalline nature of sample BaNb2O6. The metal oxides MgNb2O6, CaNb2O6, and BaNb2O6 showed band gaps of 2.19 eV, 2.13 eV, and 0.90 eV, respectively. The calculations of the total and partial density of states were carried out to examine the effects of atomic orbitals on the formation of bands. The BoltzTraP algorithm within the Wien2k code was used to study the novel transport properties. The productive values of the figure of merit suggest that the studied materials are suitable for thermoelectric applications.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"2 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140630295","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

Glass transition and crystallization of Ce68Al10Cu20Co2 bulk metallic glass studied by Flash DSC 利用闪烁 DSC 研究 Ce68Al10Cu20Co2 块状金属玻璃的玻璃转变和结晶过程

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-16 DOI: 10.1557/s43578-024-01339-z

Zikang Wei, Chenhui Wang, Luojia Zhang, Jintao Luo, Yulai Gao, Bingge Zhao

{"title":"Glass transition and crystallization of Ce68Al10Cu20Co2 bulk metallic glass studied by Flash DSC","authors":"Zikang Wei, Chenhui Wang, Luojia Zhang, Jintao Luo, Yulai Gao, Bingge Zhao","doi":"10.1557/s43578-024-01339-z","DOIUrl":"https://doi.org/10.1557/s43578-024-01339-z","url":null,"abstract":"In this study, glass transition and crystallization of Ce68Al10Cu20Co2 bulk metallic glass at heating rates ranging from 0.083 to 14,000 K/s, covering six orders of magnitude, are investigated. For the glass transition, two linear regions with different apparent activation energies (Ea,g) are distinguished by a critical heating rate of 2000 K/s: Ea,g decreases from 208.7 to 67.3 kJ/mol with the increase of heating rate. During the crystallization, the nucleation rate and crystal growth rate between Tg and Tm are calculated. According to their dependence on temperature, the contact angle for the nucleation of Ce crystals is estimated at 11–14 degrees. For the crystal growth, a maximum crystal growth rate of 0.03 m/s is found at 0.97 Tm. Moreover, the breakdown of the Stokes–Einstein equation in the deeply undercooled melt is observed, where the diffusivity is related to viscosity by D ∝ η−0.865.<h3 data-test=\"abstract-sub-heading\">Graphic abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"127 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140615233","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

Coating of expanded polystyrene spheres by TiO2 and SiO2–TiO2 thin films 用二氧化钛和二氧化硅-二氧化钛薄膜涂覆发泡聚苯乙烯球体

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-16 DOI: 10.1557/s43578-024-01319-3

Piotr Miądlicki, Piotr Rychtowski, Beata Tryba

{"title":"Coating of expanded polystyrene spheres by TiO2 and SiO2–TiO2 thin films","authors":"Piotr Miądlicki, Piotr Rychtowski, Beata Tryba","doi":"10.1557/s43578-024-01319-3","DOIUrl":"https://doi.org/10.1557/s43578-024-01319-3","url":null,"abstract":"Expanded polystyrene spheres (EPS) were coated by SiO2–TiO2 or TiO2 for application as a fluidized bed in the photocatalytic reactor. Silica coating was realized by the sol–gel process carried out in a vacuum evaporator at 60–70 °C. The most uniform and thin layer of silica coating was obtained by the Stöber method based on the hydrolysis of tetraethyl orthosilicate (TEOS) catalysed by an ammonia solution. Effective TiO2 coating was obtained by the immersion of EPS in the titania aqueous suspension and evaporation of water in a vacuum evaporator. Heating of EPS spheres coated by SiO2, TiO2 or SiO2–TiO2 at the temperatures of 120–140 °C resulted in a shrinkage of their volume. For the thick layer coating, a strong corrugation of EPS surface was observed. The photocatalytic tests showed, that highly corrugated surface of coated EPS slowed down ethylene decomposition, whereas a thin layer coating of both, SiO2 and TiO2 was advantageous.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"100 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140615236","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

Fabrication of drug-loaded graded porous Ti6Al4V structures for load-bearing biomedical applications 制备用于承重生物医学应用的药物负载分级多孔 Ti6Al4V 结构

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-04-10 DOI: 10.1557/s43578-024-01335-3

Maninder Singh, Amoljit Singh Gill, Parneet Kaur Deol, Anupam Agrawal

引用次数: 0