Bulletin of Materials Science最新文献_第10页

Anticorrosive performance of piperidinium-based ionic liquid on 6061 aluminium alloy in HCl medium 哌啶基离子液体在盐酸介质中对 6061 铝合金的防腐性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-06 DOI: 10.1007/s12034-024-03241-0

Namitha Kedimar, Padmalatha Rao, Suma A Rao

引用次数: 0

Strain rate- and temperature-dependent mechanical properties of Ti-6Al-4V in dynamic compression: hardening and softening behaviour analysis using strain energy-based method 动态压缩中与应变率和温度有关的 Ti-6Al-4V 力学性能：使用基于应变能的方法分析硬化和软化行为

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-06 DOI: 10.1007/s12034-024-03251-y

D Yang, Z W Jiang

{"title":"Strain rate- and temperature-dependent mechanical properties of Ti-6Al-4V in dynamic compression: hardening and softening behaviour analysis using strain energy-based method","authors":"D Yang, Z W Jiang","doi":"10.1007/s12034-024-03251-y","DOIUrl":"10.1007/s12034-024-03251-y","url":null,"abstract":"Studies have shown that the deformation of Ti alloys is due to the competition between hardening and softening effects under dynamic loading. However, there are limited indicators of this behaviour throughout the complete stress–strain process. This study aims to quantify the impact of strain rate and temperature on the hardening/softening behaviour of Ti-6Al-4V using a split-Hopkinson pressure bar system over a range of 2000 to 7000 s−1 strain rates and temperatures from 25 to 800°C. Firstly, this study proposes an evaluation index of material hardening/softening behaviour based on the complete stress–strain curve and energy evolution characteristic. Further, the dynamic mechanical properties of Ti-6Al-4V are investigated through the analysis of the stress–strain relationship and fracture morphology. Finally, the hardening/softening index is calculated and analysed. The findings revealed that the fracture surface of the impact specimen displayed dimple-like and smooth features, that are significantly influenced by both temperature and strain rate. The stress–strain curves demonstrated that Ti-6Al-4V exhibits remarkable strain-rate strengthening, plastic increasing, and strain work hardening behaviour. The hardening/softening index Br decreases with an increase in strain rate. For specific strain rates of 3000, 5000 and 7000 s−1, Br increases as the loading temperature rises from 25 to 400°C, but decreases when the loading temperature is increased to 600°C. At a strain rate of 2000 s−1, Br increases monotonically until the loading temperature reaches (sim)800°C. These observations are found to be related to the microstructural evolution at varying temperatures and strain rates.","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932377","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

Enhancement of joining interface of barium and barium–zinc borosilicate glass–ceramic SOFCs sealant by CaO and SrO addition: crystallization behaviour and microstructural aspects 通过添加氧化钙和氧化硅增强钡和钡锌硼硅酸盐玻璃陶瓷 SOFC 密封剂的接合界面：结晶行为和微观结构方面的问题

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-08-06 DOI: 10.1007/s12034-024-03232-1

NATTAPOL LAORODPHAN, NAMTHIP KINGNOI, SALISA CHAIYAPUT, JIRATCHAYA AYAWANNA

{"title":"Enhancement of joining interface of barium and barium–zinc borosilicate glass–ceramic SOFCs sealant by CaO and SrO addition: crystallization behaviour and microstructural aspects","authors":"NATTAPOL LAORODPHAN, NAMTHIP KINGNOI, SALISA CHAIYAPUT, JIRATCHAYA AYAWANNA","doi":"10.1007/s12034-024-03232-1","DOIUrl":"10.1007/s12034-024-03232-1","url":null,"abstract":"<div>Sealant properties of CaO- and SrO-containing BaO–B2O3–SiO2 and BaO–ZnO–B2O3–SiO2 glasses were first reported in this work. CaO and SrO were used as glass modifiers to improve thermal properties and optimize CTE value and possess a good joining interface between SOFC components. Addition of CaO and SrO enhanced the glass transition and softening temperature due to the higher ionic field strength of Ca and Sr ions promoting the boroxol ring formation and a denser glass network. IR spectra confirmed a less significant effect of CaO and SrO in the glass structures. Addition of doubled CaO and SrO retained the compatibility of CTE to that of SDC electrolyte and Crofer22APU interconnect. Crystalline phases with compatible CTE were formed in the CaO- and SrO-containing glass ceramics. This provided good adhesion without defects at the interface, which is close to the electrolyte and interconnect after prolonged operation at 800°C for 50 h.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932385","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

Photoluminescent carbon quantum dots synthesized from Plumeria leaves as metal ion sensor 用梅花叶合成的光致发光碳量子点作为金属离子传感器

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-30 DOI: 10.1007/s12034-024-03273-6

Shruti Sharma, Papia Chowdhury

引用次数: 0

Protocol for Dy3+-modified NaCaVO4 nanophosphors in solid-state lighting applications: structural and luminescence investigations Dy3+ 改性 NaCaVO4 纳米磷酸盐在固态照明中的应用方案：结构和发光研究

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-30 DOI: 10.1007/s12034-024-03229-w

Pallavi Jamwal, Neha Lalotra, Parul Sharma, Kamni Pathania

{"title":"Protocol for Dy3+-modified NaCaVO4 nanophosphors in solid-state lighting applications: structural and luminescence investigations","authors":"Pallavi Jamwal, Neha Lalotra, Parul Sharma, Kamni Pathania","doi":"10.1007/s12034-024-03229-w","DOIUrl":"10.1007/s12034-024-03229-w","url":null,"abstract":"<div>Combustion process was used to synthesize the dysprosium (Dy3+)-doped sodium calcium vanadate (NaCaVO4) phosphor. The structural, optical and morphological investigations were carried out with the dopant concentrations ranging from x = 0–3 mol% for which X-ray diffraction, photoluminescence spectroscopy, SEM and UV–Vis spectroscopy were used. We have explored that the XRD results indicate vibrant, clear and well-defined peaks that are matched to the NaCaVO4 standard card confirming that the phosphor powder crystallized in the orthorhombic phase with space group Cmcm. From the FESEM pictures, the particles had an agglomerated morphology with irregular shapes and sizes in the nm range. The PL properties of undoped and Dy3+-doped NaCaVO4 were investigated using a 310 nm excitation source to determine the suitability for use in displays. The emission spectrum exhibited two sharp peaks at 450–500 and 550–600 nm and a weak peak at 650–700 nm, which is assigned to Dy3+-emission transitions of 4F9/2 → 6H15/2 (blue), 4F9/2 → 6H13/2 (yellow) and 4F9/2 → 6H11/2 (red). Doping of NaCaVO4 with Dy3+ for x = 0.25–3 mol% concentrations resulted in band gap modifications in the range of 3.341–3.866 eV. The material that we have taken up might be investigated as a new phosphor that could be activated by UV light-emitting diode (LED) light for solid-state lighting and display applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865230","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

Effect of polyethylene glycol 4000 in magnetic properties of (bf{0.2}{textbf{SiO}}_{{2}}{-}{0.5}{textbf{FeO}}{-}{0.3}{textbf{CaO}}) glass ceramic 聚乙二醇 4000 对 $$bf{0.2}{textbf{SiO}}_{{2}}{-}{0.5}{textbf{FeO}}{-}{0.3}{textbf{CaO}}$ 玻璃陶瓷磁性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-29 DOI: 10.1007/s12034-024-03283-4

P Rastgoo Oskoui, M Rezvani

引用次数: 0

An experimental analysis of sugarcane-based hybrid aluminium metal matrix composites through powder metallurgy 通过粉末冶金对甘蔗基混合铝金属基复合材料的实验分析

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-29 DOI: 10.1007/s12034-024-03233-0

Anup Choudhury, Jajneswar Nanda, Sankar Narayan Das

{"title":"An experimental analysis of sugarcane-based hybrid aluminium metal matrix composites through powder metallurgy","authors":"Anup Choudhury, Jajneswar Nanda, Sankar Narayan Das","doi":"10.1007/s12034-024-03233-0","DOIUrl":"10.1007/s12034-024-03233-0","url":null,"abstract":"<div>Recent achievements in engineering include the development and production of hybrid aluminium metal matrix composites (AMMCs), which are widely employed in all automotive applications due to their significant weight reduction and better strength compared to the base metal used in various manufacturing processes. The present work used burnt sugarcane bagasse powder (SCBP) as the filler material in aluminum–alumina composite. This filler material is inexpensive, low in density, accessible and widely available, renewable and ecologically innocuous. The fabrication of various AMMCs has been implemented using SCBP and alumina at different weight percentage ratios by powder metallurgy process. The validity of elemental composition is tested using energy-dispersive X-ray analysis, X-ray fluorescence, X-ray diffraction and CHNS studies. The specimens are made using an Instron machine at a pressure of 474 MPa and sintered for various lengths of time and temperatures. All specimens were checked for microhardness, uniaxial compression and fractography using the FMV1-MC-AT model, the Instron 8801 MT model, and the JEOL JSM-7001F model, respectively. The outcomes were compared with the base composite. At 600°C and for 2.5 h with 3 wt% burned SCBP, it was observed that relative density, microhardness and ultimate compression strength improved by 1.98, 28.18 and 24.27%, respectively.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865227","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

Synthesis of TiO2/MWCNTs nanocomposites by click chemistry and its microwave absorption properties 点击化学法合成 TiO2/MWCNTs 纳米复合材料及其微波吸收特性

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-29 DOI: 10.1007/s12034-024-03250-z

Xiaoli Ji, Qianqian Ma, Jian Liu, Haoze Yuan, Xukai Ma

{"title":"Synthesis of TiO2/MWCNTs nanocomposites by click chemistry and its microwave absorption properties","authors":"Xiaoli Ji, Qianqian Ma, Jian Liu, Haoze Yuan, Xukai Ma","doi":"10.1007/s12034-024-03250-z","DOIUrl":"10.1007/s12034-024-03250-z","url":null,"abstract":"<div>Titanium dioxide/multi-walled carbon nanotubes (TiO2/MWCNTs) are nanocomposites (NCs) prepared via click reaction of TiO2 nanoparticles (TiO2 NPs) with azide groups (TiO2–N3) on the surface and MWCNTs with alkynyl groups (MWCNTs–ALK) on the surface. The phase structure, graphitization degree, structure, elemental composition, the microstructure of TiO2/MWCNTs NCs were characterized by XRD, Raman, IR, XPS and SEM, and their electromagnetic (EM) parameters were determined by the vector network analyser. For TiO2/MWCNTs NCs with click reaction, the minimum reflection loss (RLmin) is up to −47.87 dB at 12.02 GHz, the matching thickness is 2.0 mm, and the bandwidth is lower than −10 dB in the range of 7.7–12.48 GHz. Compared with the physically mixed TiO2/MWCNTs composites, TiO2/MWCNTs NCs prepared by click reaction show more excellent EM absorption properties, which is mainly due to the binding of covalent bonds between the two kinds of materials that lead to the enhancement of interfacial effects, the improvement of impedance matching and the increase of electron migration.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865229","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

Binderless incorporation of titanium dioxide nanoparticles into glass fibres via a straightforward alkali treatment 通过直接碱处理将二氧化钛纳米颗粒无粘合剂地融入玻璃纤维中

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-29 DOI: 10.1007/s12034-024-03258-5

Satoru Fukugaichi

{"title":"Binderless incorporation of titanium dioxide nanoparticles into glass fibres via a straightforward alkali treatment","authors":"Satoru Fukugaichi","doi":"10.1007/s12034-024-03258-5","DOIUrl":"10.1007/s12034-024-03258-5","url":null,"abstract":"<div>The utilization of titanium dioxide (TiO2) as a photocatalyst is widespread in materials chemistry; however, handling this material in powder form poses significant challenges. Therefore, it becomes imperative to process TiO2 into inorganic sheets with improved stability and ease of handling. In this study, a glass fibre cloth was utilized as an inorganic support, and TiO2 nanoparticles were integrated onto the glass fibre surface without employing binders. This integration was accomplished by treating the fibre with a sodium hydroxide (NaOH) solution at 60°C for 24 h. The NaOH treatment dissolved the fibre surface, forming a flower-like structure that facilitated the integration of TiO2 nanoparticles. The resulting glass fibre cloth, embedded with TiO2 nanoparticles, efficiently adsorbed and decomposed acetaldehyde gas. Further enhancement was achieved by subjecting the glass fibre cloth to heat treatment after the ammonium chloride treatment, leading to improved crystallinity and photocatalytic activity of TiO2. Using the glass fibre cloth as an inorganic substrate for TiO2 nanoparticles is promising for the fabrication of durable and high-performance photocatalysts with superior adsorption properties. Moreover, this technique offers a practical solution to the challenges associated with handling and processing TiO2 in its powdered form.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865228","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

Effect of severe plastic deformation and magnetic field-assisted heat treatment on the magnetic properties of equiatomic FeNi alloy 剧烈塑性变形和磁场辅助热处理对等原子铁镍合金磁性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-07-27 DOI: 10.1007/s12034-024-03279-0

Shuvam Mandal, Pradyut Sengupta, Sandeep Sahu, Mayadhar Debata, Suddhasatwa Basu

{"title":"Effect of severe plastic deformation and magnetic field-assisted heat treatment on the magnetic properties of equiatomic FeNi alloy","authors":"Shuvam Mandal, Pradyut Sengupta, Sandeep Sahu, Mayadhar Debata, Suddhasatwa Basu","doi":"10.1007/s12034-024-03279-0","DOIUrl":"10.1007/s12034-024-03279-0","url":null,"abstract":"<div>This study highlights the effect of high-pressure torsion (HPT), a severe plastic deformation technique, on the magnetic properties of equiatomic FeNi alloys prepared from mechanical alloying. The prime objective of this study is to increase the interdiffusion of FeNi and accelerate the formation of L10 ordering. HPT processing on FeNi alloy was carried out at room temperature under 6 GPa for 5, 10 and 20 turns. Subsequently, the samples were subjected to heat treatment in a vacuum at 593 K for 1000 h without any magnetic field. Further heat treatment of 4 h was also performed at 593 K in the presence of a 1.5 T magnetic field. It is observed that HPT processing first increases the lattice strain; however, further processing causes strain relaxation due to dynamic recrystallization. Initially, for 5 turns of HPT, the saturation magnetization decreases. However, after 10 and 20 turns of HPT, the saturation magnetization increases due to recrystallization and formation of L10 ordering. After 5 turns, the coercivity increases by ~175% due to lattice strain. With further processing, the coercivity decreases by ~50% due to recrystallization. Heat treatment on the HPT-processed samples shows increased coercivity and remanence due to the annihilation of defects and formation of short-range L10 ordering.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141781944","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