Diamond and Related Materials最新文献_第4页

Material removal mechanism of X65 steel by electroplated diamond beads in the low-temperature environment

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-19 DOI: 10.1016/j.diamond.2025.112129

Zihang Guo, Lan Zhang, Jing Wen, Lining Liu, Yuchen Jiang, Ming Liu, Feihong Yun

{"title":"Material removal mechanism of X65 steel by electroplated diamond beads in the low-temperature environment","authors":"Zihang Guo, Lan Zhang, Jing Wen, Lining Liu, Yuchen Jiang, Ming Liu, Feihong Yun","doi":"10.1016/j.diamond.2025.112129","DOIUrl":"10.1016/j.diamond.2025.112129","url":null,"abstract":"<div><div>Diamond wire saws are the preferred underwater cutting tools for the disintegration of X-series steel structures. This paper first analyzes the material removal behavior of abrasive grains during the grinding of X65 steel. Based on contact mechanics theory, a mechanical model is established for the diamond abrasive grain's griding process, encompassing the phases of rubbing, plowing, and cutting to elucidate their interactions. In accordance with the four typical postures of hexoctahedral abrasive grains, a theoretical model for the material removal rate (MRR) of the electroplated diamond bead is proposed, based on the shoelace theorem and the trajectory of the abrasive grains. Finally, low-temperature grinding experiments were conducted to reveal the chip formation mechanism of X65 steel under different cutting parameters and verify the MRR model. Observations under a scanning electron microscope (SEM) showed that the griding chips changed from the flowing chip to the knife chip as the feed speed increased. With an increase in cutting speed, the proportion of lump debris also increased. The error rate between the theoretical model of MRR and the experimental data is within 10 %, indicating the model's capability to predict the removal rate of the beads and wire saw.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112129"},"PeriodicalIF":4.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermally activated conductance of three different CVD grown free-standing polycrystalline diamond sheets

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-19 DOI: 10.1016/j.diamond.2025.112128

Yimeng Zhao , Shirun Huang , Mingyu Yin , Jiawei Li , Shuqian Rui , Jiesen Zhang , Hongwei Zhu , Qiao Chen

{"title":"Thermally activated conductance of three different CVD grown free-standing polycrystalline diamond sheets","authors":"Yimeng Zhao , Shirun Huang , Mingyu Yin , Jiawei Li , Shuqian Rui , Jiesen Zhang , Hongwei Zhu , Qiao Chen","doi":"10.1016/j.diamond.2025.112128","DOIUrl":"10.1016/j.diamond.2025.112128","url":null,"abstract":"<div><div>The applications of diamond in temperature sensing are gaining attention, while the influence of various growth processes on thermal sensitivity remains unclear. In this study, thermistors were fabricated based on free-standing polycrystalline diamond (PD) sheets synthesized through three different techniques: hot filament chemical vapor deposition (HFCVD), microwave plasma chemical vapor deposition (MPCVD), and direct current arc plasma jet chemical vapor deposition (DCCVD). The results indicate that the diamond produced with a high density of grain boundaries, defects, and a (110) texture, exhibits optimal thermal sensitivity. The thermistor based on HFCVD-diamond shows an extremely high thermal constant (<em>B</em><sub>25/300</sub>: 8133 K), while thermistors made from diamonds synthesized by MPCVD and DCCVD show negligible thermally activated conductivity at room temperature. Analysis of the impedance spectrum reveals grain boundaries play a crucial role in the thermal sensitization mechanism of PD sheet grown by HFCVD, whereas in samples synthesized by MPCVD and DCCVD, the grains themselves are more influential.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112128"},"PeriodicalIF":4.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

An investigation on chlorine evolution reaction behavior of graphene containing RuO2-TiO2 coating using advanced dynamic impedance method

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-18 DOI: 10.1016/j.diamond.2025.112125

K. Jafarzadeh, S. Taei, S.M. Mirali, Y. Mosaei Oskoei

引用次数: 0

Structural elucidation and environmental remediation potential of novel NiCoP@rGO nanocatalyst

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-18 DOI: 10.1016/j.diamond.2025.112123

P. Rajeswaran , G. Raja , M. Raja , A. Gilbert Sunderraj , K. Umavathy

{"title":"Structural elucidation and environmental remediation potential of novel NiCoP@rGO nanocatalyst","authors":"P. Rajeswaran , G. Raja , M. Raja , A. Gilbert Sunderraj , K. Umavathy","doi":"10.1016/j.diamond.2025.112123","DOIUrl":"10.1016/j.diamond.2025.112123","url":null,"abstract":"<div><div>A simple hydrothermal method was used to hybridise reduced graphene oxide (rGO) with nickel cobalt phosphide (NiCoP) to produce an incredibly porous nanocomposite material. X-Ray Diffraction (XRD), Raman, Scanning Electron Microscopy (FE-SEM), High Resolution Transmission Electron Microscopy (HRTEM), UV-VIS, and XPS were utilised to investigate the crystal structure, functional groups, chemical bands, morphology, surface area and oxidation state of the synthesised NiCoP@rGO nanocomposite. According to the investigations, the NiCoP nanoparticles were adhered to the rGO surface. Additionally, the synthesised photocatalyst was used to degrading orange G (OG) and Eosin Yellow (EY) utilising UV light radiation. Ultimately, a number of operating conditions were optimised, including the effects of pH, catalyst dosage, concentration and electrolytes. The findings demonstrated that NiCoP@rGO exceeded pristine NiCoP in terms of photocatalytic efficiency. Reusability studies showed that it retained its initial efficiency even after the third cycle of reuse. <em>Z</em>-scheme is part of the photocatalytic mechanism that efficiently separates photogenerated electron-hole pairs in the presence of UV light. According to these findings, the synthesised NiCoP@rGO would be very beneficial for the degradation of organic industries.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112123"},"PeriodicalIF":4.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

ZnCo2O4/graphene@NF nanocomposites as high-capacity anode materials for lithium-ion batteries

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-17 DOI: 10.1016/j.diamond.2025.112121

Jia Du , Qi Liu , Hengrui Qiu , Yongqiang Zhang , Wenxiu He

引用次数: 0

High-performance diamond “Supertools” with extreme tool-life

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-17 DOI: 10.1016/j.diamond.2025.112122

I.S. Durazo-Cardenas , Saurav Goel , P. Shore , L. Kirkwood , Graham L.W. Cross

{"title":"High-performance diamond “Supertools” with extreme tool-life","authors":"I.S. Durazo-Cardenas , Saurav Goel , P. Shore , L. Kirkwood , Graham L.W. Cross","doi":"10.1016/j.diamond.2025.112122","DOIUrl":"10.1016/j.diamond.2025.112122","url":null,"abstract":"<div><div>The use of diamond as a cutting tool is pervasive in modern ultra-high-precision machining applications, particularly for generating sub-micron accurate features through the Single Point Diamond Machining (SPDM) method. Beyond SPDM, diamond is also widely employed in contact profilometry (imaging), nanoindentation, nanoimpact, nanoscratching, and lithography applications.</div><div>Interestingly, a particular type of diamond, commonly used in what the fabrication industry calls “supertools,” consistently demonstrates a lifespan up to 300% longer than that of standard diamond tools. Despite this remarkable performance, the reasons behind the enhanced durability of these unique diamond tools have remained unclear.</div><div>This paper provides the first experimental explanation for the exceptional properties of these “supertools”. Using Fourier Transform Infrared Spectroscopy (FTIR), we establish that such diamond possess higher overall concentration of nitrogen, particularly Defect Type A (type IaA) and Defect Type C (type Ib). Counterintuitively, they also exhibit lower residual stresses, as revealed through cross-polar examination. Moreover, the diamond tip misalignment error, estimated using Laue backscattering analysis, was found to be insignificant in governing the tool wear resistance. These findings suggest that the wear resistance of natural diamonds can be predicted by screening for high levels of nitrogen defects (combination of Type A and Type C). This insight offers valuable potential for selecting superior diamonds for high-value manufacturing.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112122"},"PeriodicalIF":4.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategic design of 2D graphitic carbon nitride nanosheets anchored with CuFe2O4 nanoparticles for efficient photoanodes in DSSC applications

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-16 DOI: 10.1016/j.diamond.2025.112091

T. Aravind , A. Rajasekaran , R. Arun , G. Elumalai , M. Bindhu

{"title":"Strategic design of 2D graphitic carbon nitride nanosheets anchored with CuFe2O4 nanoparticles for efficient photoanodes in DSSC applications","authors":"T. Aravind , A. Rajasekaran , R. Arun , G. Elumalai , M. Bindhu","doi":"10.1016/j.diamond.2025.112091","DOIUrl":"10.1016/j.diamond.2025.112091","url":null,"abstract":"<div><div>The development of highly efficient and stable photoanodes is critical for advancing dye-sensitized solar cells (DSSCs) toward practical applications in sustainable energy production. In this work, we introduce a novel hybrid photoanode design that incorporates two-dimensional (2D) graphitic carbon nitride (g-C₃N₄) nanosheets anchored with copper ferrite (CuFe₂O₄) nanoparticles. This innovative configuration leverages the synergistic properties of g-C₃N₄ and CuFe₂O₄ to address critical DSSC challenges, such as charge recombination, limited visible-light absorption, and stability. The hybrids were synthesized with g-C₃N₄ incorporated at weight ratios of 10 %, 20 %, and 30 %, respectively, to enhance the electrochemical properties of the photoanodes. The band gaps were estimated at 2.31, 2.07, 1.93, and 1.80 eV for CFCN0, CFCN10, CFCN20, and CFCN30, respectively, where ‘CFCN’ denotes CuFe₂O₄/g-C₃N₄ hybrid composites with varying g-C₃N₄ content. BET analysis revealed a significant increase in surface area from 74.41 m<sup>2</sup>/g for CuFe₂O₄ to 135.16 m<sup>2</sup>/g for CFCN30, along with an increase in pore volume and diameter. The optimized CFCN30 photoanode achieved a maximum efficiency of 7.92 %, with notable improvements in short-circuit current density (J<sub>sc</sub> = 16.05 mA/cm<sup>2</sup>), open-circuit voltage (Voc = 0.72 V), and fill factor (FF = 0.66), attributed to the robust heterojunction formed between g-C₃N₄ and CuFe₂O₄. Additionally, the incident photon-to-current conversion efficiency (IPCE) reached 74.72 % at 530 nm, and the photocurrent density was 6.5 times higher than that of pristine CuFe₂O₄. These results highlight the potential of the CuFe₂O₄/g-C₃N₄ hybrid as a durable, high-performance photoanode, offering a promising avenue for overcoming current DSSC limitations and advancing solar energy technologies.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112091"},"PeriodicalIF":4.3,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Microwave-assisted rapid activation of carbon nanoparticles for symmetrical supercapacitor electrode

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-15 DOI: 10.1016/j.diamond.2025.112120

Vanshika Gairola , Ayush Uniyal , Kamal K. Kar , Pankaj Chamoli

{"title":"Microwave-assisted rapid activation of carbon nanoparticles for symmetrical supercapacitor electrode","authors":"Vanshika Gairola , Ayush Uniyal , Kamal K. Kar , Pankaj Chamoli","doi":"10.1016/j.diamond.2025.112120","DOIUrl":"10.1016/j.diamond.2025.112120","url":null,"abstract":"<div><div>The present work is an attempt to one-step synthesis of carbon nanoparticles (CNPs) using a mustard oil lamp with a cotton wick. Then, CNPs have been used to a rapid microwave-assisted activation (400 W, 3 min) with KOH for producing activated carbon nanoparticles (ACNPs). As prepared CNPs and ACNPs have been examined as electrode materials for symmetrical supercapacitors (SSCs). The CNPs and ACNPs have been characterized using X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), UV–visible spectroscopy, and scanning electron microscopy (SEM) with EDX elements mapping, and Brunauer-Emmett-Teller (BET). The surface analysis has revealed the spherical morphology with an average size of ∼62 and 72 nm for CNPs and ACNPs, respectively. Further, CNPs and ACNPs have been tested as electrode materials in SSCs, using 6 M KOH as the electrolyte. The electrochemical evaluation confirmed that ACNPs exhibited superior performance compared to CNPs, achieving a specific capacitance of 326.14 F/g at 3 A/g and 480.6 F/g at 10 mV/s. Additionally, the cycling tests at 100 mV/s demonstrated excellent capacitance retention of 83.2 % after 2000 cycles, with an energy density of 16.30 Wh kg<sup>−1</sup> and a power density of 771.42 Wkg<sup>−1</sup>. Results show that the present method offers an efficient strategy for high-yield ACNPs, notably enhancing the electrochemical performance of fabricated SSCs.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112120"},"PeriodicalIF":4.3,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Microwave-assisted synthesis of γ-AlOOH/rGO nanocomposite for removal of methylene blue

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-15 DOI: 10.1016/j.diamond.2025.112116

Xing-Wei Han, Haojun Zou, Chong Lu, Sijia Wang, Xue Gao

引用次数: 0

Potential application of reduced graphene oxide in electrocatalyst for hydrogen/oxygen evaluation reaction in water-splitting

IF 4.3 3区材料科学

Diamond and Related Materials Pub Date : 2025-02-15 DOI: 10.1016/j.diamond.2025.112113

Jasveer Singh, Pawan K. Tyagi, Vinod Singh

{"title":"Potential application of reduced graphene oxide in electrocatalyst for hydrogen/oxygen evaluation reaction in water-splitting","authors":"Jasveer Singh, Pawan K. Tyagi, Vinod Singh","doi":"10.1016/j.diamond.2025.112113","DOIUrl":"10.1016/j.diamond.2025.112113","url":null,"abstract":"<div><div>The present study aims to develop a cost-effective bifunctional electrocatalyst having pronounced electrocatalytic activity at low activation energy barrier. Herein, we have synthesized reduced graphene oxide (rGO)-based electrocatalyst materials meticulously structurally characterized using X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The electrochemical performance of catalyst has been examined by linear sweep voltammetry (LSV), Tafel slope, electrochemical impedance spectroscopy (EIS), and stability tests at different current densities in alkaline and acidic mediums. We demonstrate that the NiO-rGO composite exhibits excellent performance for hydrogen evaluation reaction (HER), attaining a current density of 10 mA/cm<sup>2</sup> @ stable overpotential of 290 mV, while for the oxygen evaluation reaction (OER) performance for rGO was outstanding and attained a current density of 10 mA/cm<sup>2</sup> @ overpotential of 272 mV. Furthermore, a prototype oxy‑hydrogen (HHO) generator was designed using NiO-rGO and rGO as working electrodes in acidic and alkaline mediums, respectively, and platinum as a counter electrode. The Faraday efficiency of the designed generator is found to be 16 % and 11 % at 11 V cell potential in acidic and alkaline mediums, respectively. We envision this study paving the way for developing of efficient and cost-effective a portable hydrogen generator.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112113"},"PeriodicalIF":4.3,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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