Bulletin of Materials Science最新文献_第7页

Effect of particle size of cubic boron nitride powders on the properties of polycrystalline cubic boron nitride composites 立方氮化硼粉末的粒度对多晶立方氮化硼复合材料性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-22 DOI: 10.1007/s12034-024-03326-w

Changjiang Xiao, Haoyu Zheng, Hongjun Tao, Jinming Ma, qunfei Zhang, Lihui Tang

{"title":"Effect of particle size of cubic boron nitride powders on the properties of polycrystalline cubic boron nitride composites","authors":"Changjiang Xiao, Haoyu Zheng, Hongjun Tao, Jinming Ma, qunfei Zhang, Lihui Tang","doi":"10.1007/s12034-024-03326-w","DOIUrl":"10.1007/s12034-024-03326-w","url":null,"abstract":"<div>Polycrystalline cubic boron nitride (PcBN) composites were prepared through high-temperature and high-pressure (HTHP) sintering process. Cubic boron nitride (cBN) powders with particle sizes of 0.2, 1, 3, and 8 μm were selected as raw materials, and Al-Co-TiN was employed as a binder. The effect of particle size of initial cBN powders on the microstructure, relative density, flexural strength, microhardness, fracture toughness and abrasive ratio of sintered PcBN composite were systematically studied. The results showed that synthesized products were mostly made of cBN, TiN, AlN, TiB2 and CoN phases. The mechanical properties of sintered PcBN composites first increased and then decreased with a reduction in the particle size of cBN powders. When the particle size of initial cBN powder was 1 µm, the binder was observed to be evenly distributed around the cBN grains in the sintered product. Moreover, there was a close bonding between cBN grains and the binder in the sintered product when the particle size of initial cBN powders was 1 µm, consequently, the optimal mechanical properties were achieved. The maximum values for relative density, flexural strength, microhardness, fracture toughness and abrasive ratio were 99.1%, 607 MPa, 47.06 GPa, 6.52 MPa·M1/2 and 7125, respectively.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453133","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

Blend membranes of sulphonated poly(arylene ether sulphone) and sulphonated polybenzimidazole and their characterization for desalination applications 用于海水淡化的磺化聚（芳基醚砜）和磺化聚苯并咪唑共混膜及其特性分析

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-22 DOI: 10.1007/s12034-024-03322-0

Kaarthick Raaja Venkatachalam, Sachin M B Gautham, Anegondi Nateriachyuth, Jegatha Nambi Krishnan

{"title":"Blend membranes of sulphonated poly(arylene ether sulphone) and sulphonated polybenzimidazole and their characterization for desalination applications","authors":"Kaarthick Raaja Venkatachalam, Sachin M B Gautham, Anegondi Nateriachyuth, Jegatha Nambi Krishnan","doi":"10.1007/s12034-024-03322-0","DOIUrl":"10.1007/s12034-024-03322-0","url":null,"abstract":"<div>Upon polycondensing, the monosodium salt of 2-sulphoterepthalic acid and 3,3′-diaminobenzidine resulted in sulphonated polybenzimidazole (s-p-PBI; amphiphilic polymer). The amphiphilic polymer was blended with commercially available sulphonated poly(arylene ether sulphone) (SPAES; acid polymer; IEC = 2.08 meq g−1). The s-p-PBI content in blend composition is varied from 2.5 to 30% (w/w). ATR-FTIR spectroscopy and TG analysis were examined to identify the interactions between the polymers upon blending. Cross-sectional morphology was analysed through SEM. With amphiphilic polymer addition, chlorine (hypochlorite) stability decreased and tensile strength improved. All the blend membranes showed improved water transport or restricted salt permeability than the pristine membrane (acid polymer). Water diffusivity permeability (Pw) of blend membrane AC-AM-97.5 (i.e., 97.5% (w/w) of SPAES and 2.5% (w/w) of s-p-PBI) is 1.285 cm2 s−1, while the pristine membrane is 0.864 cm2 s−1. NaCl permeability selectivity (Pw/Ps) of AC-AM-97.5 is 0.208 × 103, whereas pristine membrane shows 0.102 × 103.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453066","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

Revealing electrochemical performance of Ni doping LiFePO4 composite 揭示掺杂镍的磷酸铁锂复合材料的电化学性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-18 DOI: 10.1007/s12034-024-03295-0

Guimin Zhou, Peng Wang, Zengmou Li, Yin Li, Yaochun Yao

{"title":"Revealing electrochemical performance of Ni doping LiFePO4 composite","authors":"Guimin Zhou, Peng Wang, Zengmou Li, Yin Li, Yaochun Yao","doi":"10.1007/s12034-024-03295-0","DOIUrl":"10.1007/s12034-024-03295-0","url":null,"abstract":"<div>In this work, Ni2+ was doped into the crystal lattice of LiFePO4 to improve the electrochemical performance. Lengths of the Li–O bonds in LiFe0.98Ni0.02PO4/C (2% NiSO4-doped LiFePO4) is longer than that of the bare LiFePO4 sample, the micromorphology of LiFe0.98Ni0.02PO4/C sample becomes uniform, and the Ni2+ doped into LiFePO4 expands the crystal plane spacing, which is conducive to Li+ diffusion. Amongst all the doped samples, the Li+ diffusion coefffcient of LiFe0.98Ni0.02PO4/C is the largest, and the redox peak of LiFe0.98Ni0.02PO4/C is more symmetrical, sharper and narrower, indicating that the proper amount of Ni2+-modified LiFePO4 can improve the electrochemical performance. Specific discharge capacity at 1C is 152 mAh g−1 when the doping amount is 2%. Additionally, after 200 cycles at 2C, the discharge specific capacity can be attained at 140 mAh g−1 and capacity retention rate reached 98%.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451124","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

Exploring the synergistic potential of PVB: KCl composite electrolyte films for enhanced performance in solid-state potassium batteries 探索 PVB：KCl 复合电解质薄膜的协同潜力，以提高固态钾电池的性能

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-14 DOI: 10.1007/s12034-024-03340-y

K Nivetha, K Vijaya Kumar, N Krishna Jyothi, K Venkataratnam Kamma

{"title":"Exploring the synergistic potential of PVB: KCl composite electrolyte films for enhanced performance in solid-state potassium batteries","authors":"K Nivetha, K Vijaya Kumar, N Krishna Jyothi, K Venkataratnam Kamma","doi":"10.1007/s12034-024-03340-y","DOIUrl":"10.1007/s12034-024-03340-y","url":null,"abstract":"<div>Polyvinyl butyral (PVB) integrated with varying compositions of potassium chloride (KCl) was prepared through a solution-cast method in methanol, forming a PVB-based electrolyte film for solid-state potassium batteries. The incorporation of KCl into PVB matrix significantly altered the composite electrolyte film’s structural intricacies, bandgap modulation, thermal stability and facilitated functional group identification. Furthermore, the ionic conductivity of the PVB polymer electrolyte exhibited an initial enhancement followed by a subsequent reduction with the escalating ratio of KCl. Specifically, at 80 wt% PVB and 20 wt% KCl, its ionic conductivity reached a value of 1.87 × 10−5 S cm−1 at room temperature and 9.61 × 10−5 S cm−1 at 303 K temperature. The ion transference number, which denotes the relative ease with which potassium ions migrate within the PVB polymer-complexed electrolyte, was determined to be 0.98. Discharge tests on the cell, under 1.2 µA current and 2.1 V at room temperature, displayed an initial 9.16 µA h−1 discharge capacity.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430993","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

Doping-induced electronic transport properties in tetracene-based molecular device 四碳烯基分子器件中的掺杂诱导电子传输特性

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-10 DOI: 10.1007/s12034-024-03324-y

Sukhdeep Kaur, Rupendeep Kaur, Deep Kamal Kaur Randhawa, Rahul Sharma, Harmandar Kaur

引用次数: 0

Influence of heat treatment and anodizing on the corrosion behaviour of additive manufactured AlSi10Mg alloy 热处理和阳极氧化对添加剂制造的 AlSi10Mg 合金腐蚀性能的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-10 DOI: 10.1007/s12034-024-03223-2

P Chandramohan, R Raghu, K Dharmaseelan, S Harinadh

{"title":"Influence of heat treatment and anodizing on the corrosion behaviour of additive manufactured AlSi10Mg alloy","authors":"P Chandramohan, R Raghu, K Dharmaseelan, S Harinadh","doi":"10.1007/s12034-024-03223-2","DOIUrl":"10.1007/s12034-024-03223-2","url":null,"abstract":"<div>Additive manufacturing (AM) processes produce complex and multifunctional items by layering pre-alloyed powder. Among them, direct metal laser sintering (DMLS) process encourages creation of distinct microstructures and internal phase distributions. These microstructures possess substantial influence on corrosion performance and mechanisms of corrosion resistance-improving surface treatments, such as anodizing. Hence, this study emphasize on corrosion performance of anodized and unanodized heat-treated AlSi10Mg samples manufactured through DMLS method. As built AlSi10Mg samples were subjected to stress relieving and T6 heat-treatment. The heat-treated samples were further subjected to anodizing process in H2SO4 electrolyte solution. Microstructural characterization of unanodized and anodized heat-treated samples was performed through microscopy analysis. In addition, corrosion experiments were performed in 1 M H2SO4 solution on anodized and unanodized heat-treated samples to determine Ecorr, Icorr and corrosion rate values. The corroded samples are further characterized to understand different failure mechanisms.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411187","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

Investigation on impedance spectroscopy and transport properties of co-doped bismuth ferrite ceramics 共掺杂铁氧体铋陶瓷的阻抗光谱和传输特性研究

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-10 DOI: 10.1007/s12034-024-03246-9

H Hemanta Singh, H Basantakumar Sharma

引用次数: 0

Synthesis and characterization of injectable chitosan, hyaluronic acid, and hydroxyapatite blend hydrogel aimed at bone tissue engineering application 针对骨组织工程应用的可注射壳聚糖、透明质酸和羟基磷灰石混合水凝胶的合成与表征

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-10-05 DOI: 10.1007/s12034-024-03315-z

Sarita, Pal Manisha Dayaram, Ambak K Rai, Ravi Prakash Tewari, Pradip Kumar Dutta

引用次数: 0

Investigation of the solid self-lubricating effect on tribological properties of Al/SiC/Gr composites against steel disc 研究固体自润滑对 Al/SiC/Gr 复合材料与钢盘摩擦学特性的影响

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-30 DOI: 10.1007/s12034-024-03339-5

Deniz Gültekin, Erhan Duru, Serdar Aslan, Hatem Akbulut

{"title":"Investigation of the solid self-lubricating effect on tribological properties of Al/SiC/Gr composites against steel disc","authors":"Deniz Gültekin, Erhan Duru, Serdar Aslan, Hatem Akbulut","doi":"10.1007/s12034-024-03339-5","DOIUrl":"10.1007/s12034-024-03339-5","url":null,"abstract":"<div>The present work examines the tribological characteristics of cast aluminium–silicon matrix composites reinforced with silicon carbide (SiC) and graphite (Gr). The metal matrix composite samples were manufactured using stir and squeeze casting techniques, employing an Al–Si matrix alloy and integrating particulate SiC and varying quantities of graphite particles. To investigate the impact of varying amounts of graphite on the Al/SiC composite, graphite particles were included at volumetric proportions of 5, 7.5 and 10%. Before being integrated into the matrix, Cu-coating was employed on graphite particles using electroless coating to enhance the adhesion with the matrix composition. Tribological experiments were conducted on Al/SiC and the Al/SiC/Gr composites using a pin-on-disc tribometer apparatus. Al–SiC and Al/SiC/Gr samples were specifically engineered and employed as a pin, while AISI 8620 steel was utilized as a disc. Adding graphite particles to the Al/SiC composite decreased the amount of wear and friction. The utilization of hybrid Al/SiC/Gr composites resulted in the creation of tribo-layers during sliding, hence minimizing the occurrence of grooves, plowing and smearing.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415290","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

Materials for Energy and Sustainable Development 能源与可持续发展材料

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-09-30 DOI: 10.1007/s12034-024-03319-9

引用次数: 0