Journal of Materials Research最新文献_第5页

Effect of LaB6 on the microstructure and wear resistance of In718/LaB6 composite coatings by laser cladding LaB6 对激光熔覆 In718/LaB6 复合涂层微观结构和耐磨性的影响

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-08-01 DOI: 10.1557/s43578-024-01392-8

Chenhui Cui, Meiping Wu, Hang Wang, Dadong Jie, Xin jin, Xiaojin Miao

引用次数: 0

Hydrophobicity and high-temperature mechanical behaviour of hard and optically transparent nanocomposite Al–Si–N thin films 坚硬和光学透明纳米复合 Al-Si-N 薄膜的疏水性和高温机械性能

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-31 DOI: 10.1557/s43578-024-01405-6

Soni, S. K. Sharma, S. K. Mishra

引用次数: 0

Nylon 12 composite powder prepared by thermally induced phase separation for selective laser sintering 通过热诱导相分离制备用于选择性激光烧结的尼龙 12 复合粉末

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-31 DOI: 10.1557/s43578-024-01398-2

Rong Deng, Lulu Ren, Dandan Su, Jingkui Yang, Jinbo Jin, Ting Lei, Kaizhou Zhang, Shuhao Qin

{"title":"Nylon 12 composite powder prepared by thermally induced phase separation for selective laser sintering","authors":"Rong Deng, Lulu Ren, Dandan Su, Jingkui Yang, Jinbo Jin, Ting Lei, Kaizhou Zhang, Shuhao Qin","doi":"10.1557/s43578-024-01398-2","DOIUrl":"https://doi.org/10.1557/s43578-024-01398-2","url":null,"abstract":"A thermally induced phase separation method was successfully developed to prepare spherical composite nylon 12 (PA12)/Nano-silica (Nano-SiO2) powder. By comparing the performance of pure PA12 and composite PA12 powders, it was found that the introduction of Nano-SiO2 can improve the sphericity of the composite PA12 powder, with a median particle size of 54–70 μm. Moreover, the presence of Nano-SiO2 can induce the formation of more α-phase during the crystallization of PA12, and most of Nano-SiO2 was coated by PA12 molecular chains during the solidification crystallization process, which improved the crystallization temperature and crystallinity of the composite PA12 powder. When the amount of Nano-SiO2 was 0.3 wt%, the composite PA12 powder had the highest crystallinity, and the powder spreading performance was the best.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>Mechanism diagram of the reaction between PA12 and Nano-SiO2. In this figure, it was found that Nano-SiO2 was treated with silane coupling agent can form siloxane, so that amino groups were grafted to the surface of Nano-SiO2. The amino groups can react with carboxyl groups in PA12 to form amide bonds, thereby improving the interfacial adhesion between nano silica and PA12 matrix and enhancing their compatibility. Meanwhile, by comparing the microstructure before and after addition, it was found that the addition of Nano-SiO2 increased the sphericity of the powder, and the powder particle size increased from 55.2 to 68.71 μm.\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"16 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870620","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

Atomic force microscopic investigations of transient early-stage bacterial adhesion and antibacterial activity of silver and ceria modified bioactive glass 银和铈修饰生物活性玻璃瞬时早期细菌粘附和抗菌活性的原子力显微镜研究

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-31 DOI: 10.1557/s43578-024-01391-9

Shivani Gour, Abhijit Mukherjee, Kantesh Balani, Navdeep K. Dhami

{"title":"Atomic force microscopic investigations of transient early-stage bacterial adhesion and antibacterial activity of silver and ceria modified bioactive glass","authors":"Shivani Gour, Abhijit Mukherjee, Kantesh Balani, Navdeep K. Dhami","doi":"10.1557/s43578-024-01391-9","DOIUrl":"https://doi.org/10.1557/s43578-024-01391-9","url":null,"abstract":"Bioactive glass 58S (BG58S) is widely recognised for its bioactivity and antibacterial properties, making it a promising material for orthopaedic implant applications. This study investigates the effects of incorporating silver (BG58S-2.5Ag) and cerium oxide (BG58S-5C) into BG58S on early-stage bacterial adhesion and subsequent bacterial growth inhibition. Using a high-intensity ball milling approach, BG58S was modified with 5% cerium oxide (CeO2) and 2.5% silver (Ag) nanoparticles to create homogeneous BG58S-2.5Ag and BG58S-5C nanocomposites. Custom-made biomineral probes were employed to measure the bacterial adhesion within one second of contact with Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, using Atomic Force Microscopy (AFM). The results demonstrated that BG58S-2.5Ag showed significantly stronger transient adhesion to bacteria compared to BG58S, leading to a more effective long-term antibacterial response. Additionally, it was observed that the antibacterial effect of Ag commenced within one second of contact. These findings indicate a potential correlation between the rate of bond strengthening and cell wall penetration. This study highlights the potential for enhancing the effectiveness of antibacterial implant surfaces for various biomaterial applications.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"41 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870618","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

A biologically multifunctional PDA-LYS composite coating is fabricated on the surface of magnesium alloy vascular stents to promote endothelialization 在镁合金血管支架表面制作生物多功能 PDA-LYS 复合涂层以促进内皮化

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-31 DOI: 10.1557/s43578-024-01386-6

Yi Ma, Hao-Jie Guo, Jing-An Li, Yan-Chao Wang, Yi-Fan Zhou

{"title":"A biologically multifunctional PDA-LYS composite coating is fabricated on the surface of magnesium alloy vascular stents to promote endothelialization","authors":"Yi Ma, Hao-Jie Guo, Jing-An Li, Yan-Chao Wang, Yi-Fan Zhou","doi":"10.1557/s43578-024-01386-6","DOIUrl":"https://doi.org/10.1557/s43578-024-01386-6","url":null,"abstract":"Due to their excellent mechanical properties and biodegradability, biodegradable magnesium alloy vascular stents have become a hot topic in current research on vascular stent material. However, the further application of magnesium alloy is limited by its rapid degradation rate and insufficient ability to promote surface endothelialization. This study proposed a strategy of co-depositing a PDA-LYS coating on the surface of magnesium alloy treated with an alkaline pre-heating process. Experimental results demonstrated that the PDA-LYS composite coating significantly improved the corrosion resistance of the magnesium alloy. Furthermore, with the increase in LYS content in the samples, the coating facilitated the adhesion and proliferation of endothelial cells and effectively inhibited the excessive proliferation of pathological smooth muscle cells. In summary, the PDA-LYS composite coating had a positive impact on the biocompatibility of magnesium alloy, which has offered a new approach for surface modification of magnesium alloy vascular materials.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"213 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870621","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

Five-for-five: Highlights from five recent noteworthy papers on ionogels 五选五：离子凝胶方面近期五篇值得关注的论文集锦

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-31 DOI: 10.1557/s43578-024-01397-3

Meixiang Wang, Michael D. Dickey

引用次数: 0

Investigating the structural, electrical, and magnetic characteristics of Nd-doped BiFeO3 synthesized via the solid-state reaction method 研究固态反应法合成的掺钕 BiFeO3 的结构、电学和磁学特性

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-26 DOI: 10.1557/s43578-024-01394-6

Monika Lohchab, Sunil Rohilla, S. K. Chaudhary, Jyoti Saini

{"title":"Investigating the structural, electrical, and magnetic characteristics of Nd-doped BiFeO3 synthesized via the solid-state reaction method","authors":"Monika Lohchab, Sunil Rohilla, S. K. Chaudhary, Jyoti Saini","doi":"10.1557/s43578-024-01394-6","DOIUrl":"https://doi.org/10.1557/s43578-024-01394-6","url":null,"abstract":"In present work polycrystalline Bi1−xNdxFeO3 (X = 0.05 to 0.20 at step of 0.05) is synthesized by solid-state reaction method. Present study focuses on effect of temperature, frequency and concentration of Neodymium on BiFeO3 structural, dielectric, magnetic and ferroelectric properties. Crystalline nature of samples confirmed by XRD. Rietveld refinement of XRD data for Bi1−xNdxFeO3 shows structural transition for X = 0.20. Dielectric study shows very high value of dielectric constant i.e. (105) and shows improvement in values of dielectric constant with increasing Nd amount and observed very low value (less than 20) for dielectric loss for all the samples. Magnetic study shows low value for Retentivity and maximum for X = 0.15 (0.0386emu/gm). Performed ferroelectric analysis shows that Pr has declining nature with increasing Nd concentration for all frequencies and minimum value of Pr is obtained for X = 0.15. All the properties like dielectric, magnetic and ferroelectric shows a transition in regular trend for X = 0.20.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"44 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780863","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 empirical models for estimation polymer indentation fatigue and validation with finite element simulation models 开发用于估算聚合物压痕疲劳的经验模型，并用有限元模拟模型进行验证

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-25 DOI: 10.1557/s43578-024-01399-1

Soumya Ranjan Guru, Mihir Sarangi

{"title":"Development of empirical models for estimation polymer indentation fatigue and validation with finite element simulation models","authors":"Soumya Ranjan Guru, Mihir Sarangi","doi":"10.1557/s43578-024-01399-1","DOIUrl":"https://doi.org/10.1557/s43578-024-01399-1","url":null,"abstract":"Multi-cycle micro-indentation tests were conducted on three polymers: Poly-ether-ether-ketone (PEEK), Poly (methyl methacrylate) (PMMA), and Poly (tetra-fluoroethylene) (PTFE). The load–displacement curve obtained from the indentation technique was used to evaluate the mechanical properties of these polymers. This study employed multi-cyclic indentation to establish a polymer fatigue model utilizing the indentation load–displacement curve. Currently, researchers are investigating fatigue life studies using stress- and energy-based approaches. Two empirical models for each approach were developed using the least-square curve-fitting method in this study. A simulation model based on finite element analysis has been utilized to verify the accuracy of these fatigue models for Vickers indentation. During the validation process, both models had a maximum error value of 2% compared to the experimental data, indicating a strong agreement with the simulation results. The generated models can evaluate polymer fatigue using non-destructive methodology.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"11 4 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780862","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

Fluorescent cobalt ferrite nanoparticles for non-destructive magnetic particle testing 用于无损磁粉检测的荧光钴铁氧体纳米粒子

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-22 DOI: 10.1557/s43578-024-01396-4

Z. Baharlouei, M. H. Enayati, S. M. Nahvi

{"title":"Fluorescent cobalt ferrite nanoparticles for non-destructive magnetic particle testing","authors":"Z. Baharlouei, M. H. Enayati, S. M. Nahvi","doi":"10.1557/s43578-024-01396-4","DOIUrl":"https://doi.org/10.1557/s43578-024-01396-4","url":null,"abstract":"Magnetic particle testing is one of the popular methods to detect very small surface or near-surface defects in engineering parts. Successful defect detection depends on the physical properties of the particles. This work aims to synthesize cobalt ferrite-fluorescent polymer particles to detect finer defects located in deeper places. For this purpose, cobalt ferrite (CoFe2O4) nanoparticles were synthesized and the next step, fluorescence pigment was incorporated into CoFe2O4 nanoparticles. X-ray diffraction (XRD), scanning electron microscopy (SEM), vibration magnetometer (VSM), and Fourier transform infrared spectroscope (FTIR) were used to examine the effects of various parameters. CoFe2O4 nanoparticles with a size of about 55 nm and suitable magnetic properties were chosen. The presence of pigment reduced the saturation magnetization to 25.17 emu/g, although this value is still within the suitable range. Finally, the stability of the pigment on CoFe2O4 nanoparticles in water was investigated, and synthesized nanocomposite was successfully used to reveal defects.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"63 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780864","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

Emergence of multi-peak emission in CsBr-Cs4PbBr6-CsPbBr3 nanocrystals at room temperature 室温下 CsBr-Cs4PbBr6-CsPbBr3 纳米晶体中出现的多峰发射

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-07-22 DOI: 10.1557/s43578-024-01372-y

Chandrima Goswami, Asha Bhardwaj

{"title":"Emergence of multi-peak emission in CsBr-Cs4PbBr6-CsPbBr3 nanocrystals at room temperature","authors":"Chandrima Goswami, Asha Bhardwaj","doi":"10.1557/s43578-024-01372-y","DOIUrl":"https://doi.org/10.1557/s43578-024-01372-y","url":null,"abstract":"Highly stable and bright emitting CsBr-Cs4PbBr6-CsPbBr3 perovskite nanocrystals were synthesized using chemical route. For nanocrystals formed at higher Cs:Pb (10:1) ratios, multiple peak emission was observed in the UV–visible region (325–550 nm), while at lower Cs:Pb ratios (5:1 to 2.5:1), narrow high-intensity peak (at 522 nm, the signature peak of CsPbBr3) along with a diminished broad multi-peak emission (325–500 nm) is observed. Blue-emitting nanocrystals were observed at higher Cs:Pb precursor (Pb deficient conditions) ratios. As concentration of Pb increases (Cs:Pb ratio decreases), contribution from broad emission decreases while green emitting 522 nm peak dominates. This broad emission is unique at room temperature for CsBr-Cs4PbBr6-CsPbBr3 mixture of nanocrystals, unlike the single peak narrow emission reported in literature so far for inorganic lead halide perovskites. It is worth mentioning that the CsBr-Cs4PbBr6-CsPbBr3 mixture of nanocrystals is highly stable and hence can be used for various optoelectronic applications.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"37 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780866","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