Open Ceramics最新文献

Effect of calcium carbide residue and superplasticizer dosages on the mechanical and microstructural properties of fly ash based geopolymer composites 电石渣和高效减水剂用量对粉煤灰基地聚合物复合材料力学和微观结构性能的影响

IF 2.9

Open Ceramics Pub Date : 2025-05-06 DOI: 10.1016/j.oceram.2025.100794

Gaddam Kalpana , Chappidi Hanumantha Rao , Musa Adamu , Ashwin Raut , Yasser E. Ibrahim

{"title":"Effect of calcium carbide residue and superplasticizer dosages on the mechanical and microstructural properties of fly ash based geopolymer composites","authors":"Gaddam Kalpana , Chappidi Hanumantha Rao , Musa Adamu , Ashwin Raut , Yasser E. Ibrahim","doi":"10.1016/j.oceram.2025.100794","DOIUrl":"10.1016/j.oceram.2025.100794","url":null,"abstract":"<div><div>The role of calcium-rich waste like Calcium carbide residue (CCR) in enhancing the performance of geopolymer remains inadequately explored. This study investigates the structural, mechanical, and microstructural behaviour of low-calcium fly ash (FA)-based geopolymer composites modified with varying CCR contents (0 %, 10 %, 20 %), sodium hydroxide molarities (8 M, 10 M, 12 M), and superplasticizer dosages (0 %, 1 %, 2 %). Results revealed that 10 % CCR combined with 2 % superplasticizer and 12 M NaOH offered optimal performance, achieving a 16.8 % increase in compressive strength, a 144.8 % rise in tensile strength (3.06 MPa), and a 145.5 % improvement in flexural strength (3.83 MPa). Flowability improved by 15 % with higher superplasticizer dosage, whereas excessive CCR (20 %) adversely affected strength and porosity. Microstructural observations confirmed the synergistic formation of N-A-S-H and C-S-H gels in optimized mixes. These findings highlight CCR’s viability as a sustainable calcium source in geopolymer technology, promoting enhanced mechanical performance and environmental sustainability through industrial waste valorisation.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100794"},"PeriodicalIF":2.9,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave dielectric properties and microstructure of high entropy (MgxCa0.6-xSr0.39Ba0.01)ZrO3 ceramics 高熵（MgxCa0.6-xSr0.39Ba0.01）ZrO3陶瓷的微波介电性能与微观结构

IF 2.9

Open Ceramics Pub Date : 2025-05-02 DOI: 10.1016/j.oceram.2025.100793

Huei-Jyun Shih , Chin-Tung Shih , Ying-Chieh Lee

引用次数: 0

Ball milling preparation and the effect of calcination temperature on the photocatalytic performance of titanium dioxide 球磨法制备及煅烧温度对二氧化钛光催化性能的影响

IF 2.9

Open Ceramics Pub Date : 2025-05-01 DOI: 10.1016/j.oceram.2025.100791

Israa Zahwa , Ahmad Kassas , Mohamed Mouyane , Jérôme Bernard , Javier Navas , Tayssir Hamieh , David Houivet

{"title":"Ball milling preparation and the effect of calcination temperature on the photocatalytic performance of titanium dioxide","authors":"Israa Zahwa , Ahmad Kassas , Mohamed Mouyane , Jérôme Bernard , Javier Navas , Tayssir Hamieh , David Houivet","doi":"10.1016/j.oceram.2025.100791","DOIUrl":"10.1016/j.oceram.2025.100791","url":null,"abstract":"<div><div>The present study investigates the preparation of LiF-doped TiO<sub>2</sub> powders using the ball milling technique, with a focus on optimizing dispersion parameters and assessing the impact of calcination temperature on their photocatalytic activity. TiO<sub>2</sub> powders doped with 2 wt. % LiF were prepared using an industrial attrition mill (Dyno-Mill®) and subjected to heat treatments at different temperatures to control the anatase-to-rutile phase transition. Characterization techniques, including X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area analysis, thermogravimetric analysis (TGA), and UV–Vis spectroscopy using the diffuse reflectance mode (DRS), were employed to evaluate phase composition, surface properties, and optical band gap variations. The photocatalytic performance was assessed through the degradation of methylene blue (MB) under UV–Vis irradiation. The results revealed that the anatase-to-rutile transformation occurred at 700 °C, with a mixed anatase-rutile phase exhibiting enhanced photocatalytic activity. Despite a low BET surface area, the sample calcined at 700 °C for 30 min demonstrated the highest MB degradation rate, outperforming commercial TiO<sub>2</sub> (P25). The improved efficiency is attributed to the synergistic effects between anatase and rutile phases of TiO<sub>2</sub>. This study highlights the potential of ball milling as a scalable method for tailoring TiO<sub>2</sub>-based photocatalysts with optimized phase composition and photocatalytic properties.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100791"},"PeriodicalIF":2.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wetting and brazing of (HfTaZrNbTi)B2 and (HfTaZrNbTi)C High-Entropy Ceramics by AgCuTi filler AgCuTi填料润湿和钎焊（HfTaZrNbTi）B2和（HfTaZrNbTi）C高熵陶瓷

IF 2.9

Open Ceramics Pub Date : 2025-04-30 DOI: 10.1016/j.oceram.2025.100792

Naser Hosseini , Fabrizio Valenza , Zdeněk Chlup , Sofia Gambaro , Carla Malinverni , Valentina Casalegno , Alexandra Kovalčíková , Monika Tatarková , Ivo Dlouhý , Peter Tatarko

引用次数: 0

Y2O3 transparent nanoceramics via SPS and ZrO2-doping SPS和zro2掺杂制备Y2O3透明纳米陶瓷

IF 2.9

Open Ceramics Pub Date : 2025-04-27 DOI: 10.1016/j.oceram.2025.100784

Dariia Chernomorets , Vojtěch Nečina , Pietro Galizia , Roman Yavetskiy , Jan Hostaša

{"title":"Y2O3 transparent nanoceramics via SPS and ZrO2-doping","authors":"Dariia Chernomorets , Vojtěch Nečina , Pietro Galizia , Roman Yavetskiy , Jan Hostaša","doi":"10.1016/j.oceram.2025.100784","DOIUrl":"10.1016/j.oceram.2025.100784","url":null,"abstract":"<div><div>The synergistic effect of spark plasma sintering (SPS) and 0–15 mol. % of ZrO₂ doping on the microstructure, mechanical and optical properties of Y<sub>2</sub>O<sub>3</sub> transparent ceramics was investigated. ZrO<sub>2</sub>-doped Y<sub>2</sub>O<sub>3</sub> were obtained by SPS at 1300–1600 °C. Sintering at 1500 °C leads to defect-free, fully dense material with submicron grain size. The grain size of ceramics decreases from 5.2 to 0.11 µm for Y0Z and Y15Z, respectively, since ZrO<sub>2</sub> acts as a grain growth inhibitor. The optimal concentration of ZrO<sub>2</sub> to achieve the highest transparency of yttria is 3 mol. % (82.5 % for λ=5 μm). Increasing concentration of Zr<sup>4+</sup> ions increases the number of interstitials <span><math><msubsup><mi>O</mi><mrow><mi>i</mi></mrow><mrow><mo>″</mo></mrow></msubsup></math></span>, leading to a less efficient elimination of porosity. Vickers microhardness increased from 7.06 to 11.17 GPa with an increase in ZrO<sub>2</sub> concentration, while opposite behavior was observed for fracture toughness. The influence of grain size and ZrO<sub>2</sub> concentration on elastic modulus, shear modulus and Poisson’s ratio was not revealed.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100784"},"PeriodicalIF":2.9,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the structural and electrochemical properties of YSZ coating deposited by electrophoretic deposition 了解电泳沉积的YSZ涂层的结构和电化学性能

IF 2.9

Open Ceramics Pub Date : 2025-04-26 DOI: 10.1016/j.oceram.2025.100789

Omid Sharifahmadian, Ashokraja Chandrasekar, Reza Samiee, Amirhossein Pakseresht

{"title":"Understanding the structural and electrochemical properties of YSZ coating deposited by electrophoretic deposition","authors":"Omid Sharifahmadian, Ashokraja Chandrasekar, Reza Samiee, Amirhossein Pakseresht","doi":"10.1016/j.oceram.2025.100789","DOIUrl":"10.1016/j.oceram.2025.100789","url":null,"abstract":"<div><div>Industries suffer significant financial losses when stainless-steel components are damaged under corrosive conditions. To counter this problem, yttria-stabilized zirconia (YSZ) coating was deposited by electrophoretic deposition (EPD) on AISI 441 stainless steel substrate to improve its corrosion resistance properties. In this study, the impact of varying the sintering temperature on the microstructure and corrosion resistance of the YSZ coating was investigated. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were used to analysis the phases and surface chemistry of the coatings. Scanning electron microscopy (SEM) and confocal microscopy revealed that increasing the sintering temperature from 800 °C to 1100 °C increased the grain size and surface roughness. Compared with the other coatings, the sintered YSZ coating at 1000 °C had superior corrosion resistance. This research confirmed the potential of the YSZ coating produced by the EPD technique on a stainless-steel substrate to function as a reliable interface for corrosion-resistant application.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100789"},"PeriodicalIF":2.9,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication and characterization of lightweight aggregates with expanded perlite and NPK nutrient incorporation 膨胀珍珠岩轻团聚体的制备及特性研究

IF 2.9

Open Ceramics Pub Date : 2025-04-25 DOI: 10.1016/j.oceram.2025.100790

Panadda Rungrueng , Montree Hankoy , Mettaya Kitiwan , Nittaya Keawprak , Phacharaphon Tunthawiroon

{"title":"Fabrication and characterization of lightweight aggregates with expanded perlite and NPK nutrient incorporation","authors":"Panadda Rungrueng , Montree Hankoy , Mettaya Kitiwan , Nittaya Keawprak , Phacharaphon Tunthawiroon","doi":"10.1016/j.oceram.2025.100790","DOIUrl":"10.1016/j.oceram.2025.100790","url":null,"abstract":"<div><div>This study focuses on the development of porous lightweight aggregates incorporated with NPK fertilizer as a sustainable nutrient carrier for agricultural applications. The integration of expanded perlite (EP) as a pore-forming agent enabled the production of lightweight aggregates (EP-LWAs) at lower sintering temperatures (900 °C) while maintaining high porosity and water absorption properties, reducing energy consumption compared to conventional high-temperature ceramic processing. The optimized EP-LWAs exhibited a bulk density of 1.15 g/cm<sup>3</sup>, porosity of 46.09 %, and water absorption of 40.28 %, ensuring enhanced nutrient retention capacity. The fertilizer incorporation process was achieved using a simple vacuum infiltration technique, effectively loading the pellets with 1.2 % nitrogen (N), 2.6 % phosphorus (P), and 1.2 % potassium (K), surpassing typical soil nutrient levels and exhibiting comparable NPK content to organic fertilizers. These results highlight the potential of EP-LWAs as an energy-efficient and eco-friendly planting materials, offering a cost-effective for sustainable agriculture, green roof, and vertical gardening applications.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100790"},"PeriodicalIF":2.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO2 electrochemical reduction by Zn-based layered double hydroxides: The role of structural trivalent metal ions 锌基层状双氢氧化物电化学还原CO2：结构三价金属离子的作用

IF 2.9

Open Ceramics Pub Date : 2025-04-25 DOI: 10.1016/j.oceram.2025.100788

Ryosuke Nakazato , Keeko Matsumoto , Matthias Quintelier , Joke Hadermann , Nataly Carolina Rosero-Navarro , Akira Miura , Kiyoharu Tadanaga

{"title":"CO2 electrochemical reduction by Zn-based layered double hydroxides: The role of structural trivalent metal ions","authors":"Ryosuke Nakazato , Keeko Matsumoto , Matthias Quintelier , Joke Hadermann , Nataly Carolina Rosero-Navarro , Akira Miura , Kiyoharu Tadanaga","doi":"10.1016/j.oceram.2025.100788","DOIUrl":"10.1016/j.oceram.2025.100788","url":null,"abstract":"<div><div>Carbon dioxide electrochemical reduction (CO<sub>2</sub>ER) has attracted considerable attention as a technology to recycle CO<sub>2</sub> into raw materials for chemicals using renewable energies. Zn-based layered double hydroxide (LDH) was recently found to be a promising CO<sub>2</sub>ER catalyst, which is a non-precious metal catalyst with excellent selectivity for carbon monoxide (CO). However, the role of structural trivalent metal ions (M<sup>3+</sup>) contained in Zn-M<sup>3+</sup> LDHs for the CO<sub>2</sub>ER performance was not revealed. In this study, Zn-Cr, Zn-Ga LDHs, and Zn-Al LDHs were synthesized using a facile coprecipitation process, and their CO<sub>2</sub>ER performance and electrochemical properties were evaluated. We found that not only Zn-Al LDH but also Zn-Cr and Zn-Ga LDHs showed CO<sub>2</sub>ER activity for CO evolution, and the analysis by electrochemical impedance spectroscopy revealed that the type of M<sup>3+</sup> in Zn-based LDHs affected their electronic and ionic conductivity, functioning as key roles for their CO<sub>2</sub>ER performance.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100788"},"PeriodicalIF":2.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrophobic anodized alumina surface with embedded CuO nanoparticles: A study on antibacterial behavior 包埋纳米CuO的疏水阳极氧化氧化铝表面的抗菌性能研究

IF 2.9

Open Ceramics Pub Date : 2025-04-22 DOI: 10.1016/j.oceram.2025.100786

M. Piryaee , H.R. Ghadami Karder , M. Khodaei

{"title":"Hydrophobic anodized alumina surface with embedded CuO nanoparticles: A study on antibacterial behavior","authors":"M. Piryaee , H.R. Ghadami Karder , M. Khodaei","doi":"10.1016/j.oceram.2025.100786","DOIUrl":"10.1016/j.oceram.2025.100786","url":null,"abstract":"<div><div>High-touch surfaces pose a significant risk of nosocomial infections, making the development of antibacterial surfaces crucial for inactivating bacteria. In this study, we engineered a one-pot anodic oxidation process incorporating CuO nanoparticles, resulting in a hierarchical porous microstructure. Energy-dispersive spectroscopy (EDS) confirmed the successful embedding of CuO nanoparticles on the anodized aluminum surface. Since the anodic oxidation of aluminum and CuO nanoparticle embedding occurred simultaneously, precise control over nanoparticle distribution was limited. Following stearic acid modification, the CuO-embedded hydrophobic aluminum surface achieved a water contact angle of 121° The antibacterial assay demonstrated a 68 % reduction in <em>Escherichia coli</em> colonies, for the stearic acid-modified CuO-embedded sample, highlighting the synergistic effect of hydrophobicity and CuO nanoparticles. This study presents a novel strategy for fabricating hydrophobic aluminum surfaces capable of disrupting bacterial colonies effectively. The one-pot, cost-effective approach underscores its suitability for industrial and practical applications.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100786"},"PeriodicalIF":2.9,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formulation-driven additive manufacturing of 3YSZ advanced ceramics via digital light processing 配方驱动的3YSZ高级陶瓷数字光加工增材制造

IF 2.9

Open Ceramics Pub Date : 2025-04-22 DOI: 10.1016/j.oceram.2025.100785

Athanasios Goulas, Basar Ozkan, Sina Saremi-Yarahmadi, Bala Vaidhyanathan

引用次数: 0