Journal of Materials Research最新文献_第6页

Effect of temperature and strain rate on the hot workability behaviour of Ni–25Cr–14W superalloy: An approach using processing map and constitutive equation 温度和应变率对 Ni-25Cr-14W 超合金热加工性能的影响：使用加工图和构成方程的方法

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-22 DOI: 10.1557/s43578-024-01390-w

Ravi Ranjan Kumar, Randhir Kumar Singh, Varsha Florist, Namit Pai, C. R. Anoop, Debasis Tripathy, S. V. S. Narayana Murty

{"title":"Effect of temperature and strain rate on the hot workability behaviour of Ni–25Cr–14W superalloy: An approach using processing map and constitutive equation","authors":"Ravi Ranjan Kumar, Randhir Kumar Singh, Varsha Florist, Namit Pai, C. R. Anoop, Debasis Tripathy, S. V. S. Narayana Murty","doi":"10.1557/s43578-024-01390-w","DOIUrl":"https://doi.org/10.1557/s43578-024-01390-w","url":null,"abstract":"The hot workability of Ni–25Cr–14W alloy is studied through isothermal hot compression tests in the temperature (T) range of 1000–1200 °C and in the strain rates(ε̇) of 0.001–10 s−1 in a thermomechanical simulator. Flow stress data show stable flow curves at T > 1050 °C and ε̇ < 0.1 s−1. The values of flow stress decrease with increase in T or decrease in ε̇. Based on processing map, safe region for hot workability has been identified in the temperature range of 1000–1200 °C and ε̇ of 0.001–0.1 s−1 with maximum efficiency(η) of ~ 44% at 1175 °C and 0.001 s−1. Dynamic recrystallization has been identified as the softening mechanism operating in the material at high temperature and lower ε̇. Incomplete recrystallization of the microstructures was noted during multi-step forging by varying T or ε̇, indicating the importance of maintaining the same during industrial processing.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"70 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780865","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

Diamond/graphene (carbon sp3-sp2) heterojunctions for neuromorphic device applications 用于神经形态器件应用的金刚石/石墨烯（碳 sp3-sp2）异质结

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-17 DOI: 10.1557/s43578-024-01395-5

H. Iwane, G. Saito, S. Muto, K. Ueda

引用次数: 0

Fixed temperature polymerization during intermediate stage to synthesize highly crystallized g-C3N4 for photocatalytic hydrogen production 在中间阶段进行固定温度聚合，合成用于光催化制氢的高结晶 g-C3N4

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-10 DOI: 10.1557/s43578-024-01388-4

Wenting Shen, Jiaxin Du, Xiangyu Mei, Su Liu, Fujian Liu, Yinsong Si

{"title":"Fixed temperature polymerization during intermediate stage to synthesize highly crystallized g-C3N4 for photocatalytic hydrogen production","authors":"Wenting Shen, Jiaxin Du, Xiangyu Mei, Su Liu, Fujian Liu, Yinsong Si","doi":"10.1557/s43578-024-01388-4","DOIUrl":"https://doi.org/10.1557/s43578-024-01388-4","url":null,"abstract":"Graphitic carbon nitride (g-C3N4), owing to its unique structure, has emerged as a hotspot in the semiconductor photocatalytic hydrogen production. However, the intrinsic poor crystallinity of g-C3N4, which leads to poor hydrogen production efficiency, remains a significant drawback. This study introduces a novel approach for synthesizing highly crystallized g-C3N4 by optimizing precursor mass and employing a fixed temperature polymerization technique. Our research focuses on the intermediate stage polymerization at 220 °C using varying masses of dicyandiamide (DCY) precursors. The results indicate that an increase in the mass of the DCY precursor leads to g-C3N4 with a more regular microstructure and enhanced crystallinity. The photocatalytic hydrogen production rate of this g-C3N4 reached up to 3779 μmol·h−1·g−1, which is five times that of the original g-C3N4.This research holds significant implications for improving the photocatalytic hydrogen production performance of intrinsic g-C3N4.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"1 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141587688","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

Argatroban- and copper-modified polymers with improved thromboresistance and antimicrobial properties 阿加曲班和铜改性聚合物具有更好的抗血栓和抗菌性能

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-09 DOI: 10.1557/s43578-024-01389-3

Liana Azizova, Volodymyr Chernyshenko, Daria Korolova, Iain U. Allan, Sergey Mikhalovsky, Lyuba Mikhalovska

{"title":"Argatroban- and copper-modified polymers with improved thromboresistance and antimicrobial properties","authors":"Liana Azizova, Volodymyr Chernyshenko, Daria Korolova, Iain U. Allan, Sergey Mikhalovsky, Lyuba Mikhalovska","doi":"10.1557/s43578-024-01389-3","DOIUrl":"https://doi.org/10.1557/s43578-024-01389-3","url":null,"abstract":"This paper describes a novel approach the development of biocompatible polyvinyl chloride (PVC) and polyurethane (PU) polymers, modified with copper (II) ions followed by the immobilisation the thrombin inhibitor argatroban (AG) using dopamine chemistry. The surface loading of the immobilised AG was 6.06 µg cm−2 on PVC and 6.66 µg cm−2 on PU, confirmed by FTIR and inhibitor concentration measurements. Both AG/Cu-modified polymers produced NO by catalytically decomposing S-nitrosothiol, reaching NO levels in plasma of 0.59 × 10–10 (text{mol} , {text{cm}}^{-2} , {text{min}}^{-1}) for AG/Cu-PVC and 0.51 × 10–10 (text{mol} , {text{cm}}^{-2} , {text{min}}^{-1}) for AG/Cu-PU, matching endothelial cell-produced physiological levels. This modification improved the haemocompatibility of the polymers through thrombin inhibition and reduced platelet aggregation and adhesion. Additionally, both modified polymers inhibited Staphylococcus aureus adhesion, growth and viability, confirming their acquired antibacterial properties. Antibacterial activity against Escherichia coli was also observed. These results demonstrate that modifying PVC and PU surfaces with copper (II) and AG produced materials with dual antithrombotic and antibacterial functions.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"23 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569982","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

Development of nanoparticle doped hydroxyapatite-based composite scaffolds for maxillofacial reconstruction 开发用于颌面部重建的纳米颗粒掺杂羟基磷灰石复合支架

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-09 DOI: 10.1557/s43578-024-01380-y

Mohammad Raziul Haque, Md Masud Rana, Naznin Akhtar, Mohammad Shahedur Rahman, S. M. Asaduzzaman

{"title":"Development of nanoparticle doped hydroxyapatite-based composite scaffolds for maxillofacial reconstruction","authors":"Mohammad Raziul Haque, Md Masud Rana, Naznin Akhtar, Mohammad Shahedur Rahman, S. M. Asaduzzaman","doi":"10.1557/s43578-024-01380-y","DOIUrl":"https://doi.org/10.1557/s43578-024-01380-y","url":null,"abstract":"Hydroxyapatite is widely used as a biomaterial filler to promote maxillofacial bone regeneration. Bacterial infections pose a common challenge to maxillofacial bone tissue regeneration; thus, incorporating antibacterial properties into hydroxyapatite-based scaffolds is essential. This study aimed to develop composite scaffolds for maxillofacial reconstruction by incorporating silver and iron nanoparticles into hydroxyapatite-polymer composites. A thermally induced phase separation method was employed to fabricate scaffolds with hydroxyapatite, collagen, and chitosan. Various characterization techniques, including porosity and density measurements, swelling ability analysis, biodegradability, FTIR, XRD, and SEM analysis, were utilized. The incorporation of silver and iron nanoparticles enhanced antibacterial properties and promoted bone growth. The scaffolds demonstrated efficacy against bacteria in antimicrobial assays. Cytotoxicity and blood biocompatibility analysis confirmed their compatibility with cells, and in vivo studies in a rabbit mandibular defect model demonstrated successful bone restoration. These findings may have significant implications for craniofacial tissue regeneration, particularly in non-load-bearing bone defects.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"83 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569986","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

Hydroxyapatite modified with polyhedral oligomeric silsesquioxane as a filler for dental resin-based composites 用多面体低聚硅倍半氧烷改性的羟基磷灰石作为牙科树脂基复合材料的填料

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-09 DOI: 10.1557/s43578-024-01385-7

Zuzanna Buchwald, Tomasz Buchwald, Adam Voelkel

{"title":"Hydroxyapatite modified with polyhedral oligomeric silsesquioxane as a filler for dental resin-based composites","authors":"Zuzanna Buchwald, Tomasz Buchwald, Adam Voelkel","doi":"10.1557/s43578-024-01385-7","DOIUrl":"https://doi.org/10.1557/s43578-024-01385-7","url":null,"abstract":"Hydroxyapatite modified with methacrylate groups-bearing polyhedral oligomeric silsesquioxane was for the first time applied as a filler in the experimental composite for dental applications. As the modifier changed the hydroxyapatite surface from hydrophilic to hydrophobic, it was predicted that the stability of the obtained composites would be improved in comparison with raw hydroxyapatite-filled composites. The stability in the oral imitating environment, basic physicochemical properties, and remineralizing potential understood as the ability to release calcium ions, were examined. The distribution of the fillers in the organic matrix, composites’ degree of conversion, depth of cure, flexural and compressive strengths, sorption, and solubility after 2 and 12 weeks of incubation, and the concentrations of calcium released were examined. The results were subjected to statistical analysis. The filler modification resulted in the improvement of the composites’ mass stability during long-term incubation with simultaneous beneficial more balanced calcium release profiles and comparable physicochemical properties.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"43 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569985","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

Analysis and simulation research on deep drawing of magnesium alloy box-shaped products with sand die based on different driving modes 基于不同驱动模式的砂模镁合金箱形产品拉深分析与仿真研究

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-09 DOI: 10.1557/s43578-024-01373-x

Xinyu Han, Hongyu Wang, Xinyu Wang, Jinyan Han, Sixiang Zhang

{"title":"Analysis and simulation research on deep drawing of magnesium alloy box-shaped products with sand die based on different driving modes","authors":"Xinyu Han, Hongyu Wang, Xinyu Wang, Jinyan Han, Sixiang Zhang","doi":"10.1557/s43578-024-01373-x","DOIUrl":"https://doi.org/10.1557/s43578-024-01373-x","url":null,"abstract":"Deep drawing of box-shaped products is of wide interest. In this study, sand was used as a flexible medium to replace the rigid die for deep drawing of box-shaped products. This method can enable forming with reduced die cost. During the deep drawing, three driving modes were realized through different placement of the sand. To study the difference among these three driving modes, the macroscopic and microscopic cooperative verification method was adopted. At the macroscopic level, the pressure stress was analyzed by using analytical models and simulation. The stress variation rules were also obtained. At the microscopic level, the microstructure of the key regions is discussed. The results show that the maximum decrease in the average grain size was about 82.38%. The maximum proportion of deformed grains was about 4.30%. The rules governing the change in the microstructure and stress were obtained, enabling prediction of the stress distribution and the microstructure of other products obtained by using sand forming.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"20 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569984","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 fabrication of functional hyaluronic acid-/konjac glucomannan-based injectable hydrogel as wound closure and anti-microbial material for the treatment of burn wound healing 简易制备以透明质酸/魔芋葡甘露聚糖为基础的功能性可注射水凝胶，作为治疗烧伤创面愈合的伤口闭合和抗微生物材料

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-09 DOI: 10.1557/s43578-024-01383-9

Huiying Hao, Dan Li

{"title":"Facile fabrication of functional hyaluronic acid-/konjac glucomannan-based injectable hydrogel as wound closure and anti-microbial material for the treatment of burn wound healing","authors":"Huiying Hao, Dan Li","doi":"10.1557/s43578-024-01383-9","DOIUrl":"https://doi.org/10.1557/s43578-024-01383-9","url":null,"abstract":"Hydrogel dressings with self-healing properties hold immense promise for enhancing the effectiveness of burn wound healing treatments by prolonging the lifespan of the material. In this study, a composite hydrogel combining hyaluronic acid (HA) and konjac glucomannan (KGM), referred to as HAKGM hydrogel, was synthesized using the Schiff-base reaction. The research focused on investigating the impact of varying KGM concentrations on key properties such as gelation time, swelling ratio, biodegradation, mechanical characteristics, and physico-chemical properties of the HAKGM hydrogel composite. Notably, the HAKGM hydrogel composite exhibited notable antibacterial and biofilm activities against tested microorganisms, underscoring its potential for infection control in burn wound management. Furthermore, cytotoxicity assessments on NIH/3T3 cells revealed minimal harm caused by the HAKGM hydrogel composite, suggesting its biocompatibility. Fluorescence imaging showcased the attachment and infiltration of fibroblasts into the hydrogel matrix over 24, 48, and 72 h of cell growth, indicating its ability to support cellular proliferation and tissue regeneration. Finally, in a full-thickness skin defect model, the injectable HAKGM hydrogel composite demonstrated significant efficacy in reducing burn wound recovery time. These findings highlight the potential utility of the novel HAKGM hydrogel composite as an advanced solution for burn wound dressings, offering enhanced healing properties and facilitating improved patient outcomes.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"23 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569983","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

Efficient hydrogen production via hydrolysis of NaBH4 by the Co/Co3O4–Cu2O–ZnO catalyst prepared using mixed metal oxides as support material 以混合金属氧化物为支撑材料制备的 Co/Co3O4-Cu2O-ZnO 催化剂通过水解 NaBH4 高效制氢

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-09 DOI: 10.1557/s43578-024-01387-5

Neslihan Erat Toprak, Abdulkadir Özer, Gamze Bozkurt

{"title":"Efficient hydrogen production via hydrolysis of NaBH4 by the Co/Co3O4–Cu2O–ZnO catalyst prepared using mixed metal oxides as support material","authors":"Neslihan Erat Toprak, Abdulkadir Özer, Gamze Bozkurt","doi":"10.1557/s43578-024-01387-5","DOIUrl":"https://doi.org/10.1557/s43578-024-01387-5","url":null,"abstract":"In this study, we investigate for the first time the catalytic activity of the Co/Co3O4–Cu2O–ZnO catalyst in hydrogen production from the hydrolysis of NaBH4. After the Co3O4–CuO–ZnO support material was synthesized by the chemical precipitation method, the impregnation method was used to dope Co on the support material. Morphological and structural analyses of the Co/Co3O4–Cu2O–ZnO catalyst were investigated by XRD, XPS, SEM, TEM, and BET methods. Then, activity tests of the catalyst were performed in an H2 generation system. The hydrogen generation rate (HGR) of the Co/Co3O4–Cu2O–ZnO catalyst was found 4698 ml min−1 gcat−1 at 25°C. After the HGR measurements at 25, 35, 45, and 55°C the activation energy of the Co/Co3O4–Cu2O–ZnO catalyst was calculated as 28.05 kJ mol−1. In addition, the HGR value had reached a high value such as 12,920 ml min−1 gcat−1 at 55°C.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"25 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569987","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

Superior tensile properties of FDM 3D-printed TPU/E-TPU layered structure FDM 3D 打印热塑性聚氨酯/E-热塑性聚氨酯分层结构的卓越拉伸性能

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-03 DOI: 10.1557/s43578-024-01365-x

Muhammad Imran Farid, Wenzheng Wu, Guiwei Li, Aodu Zheng, Yu Zhao

{"title":"Superior tensile properties of FDM 3D-printed TPU/E-TPU layered structure","authors":"Muhammad Imran Farid, Wenzheng Wu, Guiwei Li, Aodu Zheng, Yu Zhao","doi":"10.1557/s43578-024-01365-x","DOIUrl":"https://doi.org/10.1557/s43578-024-01365-x","url":null,"abstract":"The study examines 3D printing technology for robust and flexible prototypes, concentrating on FDM to improve the tensile properties of multilayer TPU and conductive TPU. This research aims at the mechanical properties of layered materials to evaluate how effectively rapid prototyping approaches adhere to robust and soft components. The research evaluated five TPU/E-TPU filaments that additively produced multilayer assemblies: Models (TET), (ETE), (TETE/ETET), (pure TPU), and (pure E-TPU). Models of pure TPU and pure E-TPU serve as standards for comparison. We tailored three input parameters at three levels each: layer thickness, printing speed, and extruder temperature. The experimental results of TET (emphasizing flexibility) and ETE (prioritizing electric conductivity)-layered model arrangements lead to the best mechanical properties. The ANOVA results for the tensile strength extension response models; R2 = 75.7%; adjusted R2 = 69.3%; and the tensile strain at yield is R2 = 71.4%; adjusted R2 = 65.7%.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"1 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141552517","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