Open CeramicsPub Date : 2025-04-27DOI: 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}
{"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}
{"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}
{"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}
Open CeramicsPub Date : 2025-04-22DOI: 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}
Open CeramicsPub Date : 2025-04-22DOI: 10.1016/j.oceram.2025.100785
Athanasios Goulas, Basar Ozkan, Sina Saremi-Yarahmadi, Bala Vaidhyanathan
{"title":"Formulation-driven additive manufacturing of 3YSZ advanced ceramics via digital light processing","authors":"Athanasios Goulas, Basar Ozkan, Sina Saremi-Yarahmadi, Bala Vaidhyanathan","doi":"10.1016/j.oceram.2025.100785","DOIUrl":"10.1016/j.oceram.2025.100785","url":null,"abstract":"<div><div>Zirconia is a key advanced ceramic due to its high mechanical strength, thermal stability, and biocompatibility. However, vat photopolymerisation-based additive manufacturing of zirconia presents challenges requiring advanced formulations and processing. This study demonstrates the successful fabrication of 3 mol.% yttria-stabilised zirconia (3YSZ) using digital light processing (DLP). Complex green bodies were shaped from ceramic suspensions with 46 vol.% solids (82 wt.%), followed by thermal binder removal and sintering at 1475 °C for 4 h. The 3D-printed structures achieved 99.4 ± 0.2 % density and an average Vickers microhardness of 1244.2 ± 98.2 HV<sub>1/10</sub> (12.2 ± 0.96 GPa). This work highlights that dense, robust 3YSZ components can be produced using low-cost DLP equipment, broadening accessibility in advanced ceramic additive manufacturing.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100785"},"PeriodicalIF":2.9,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899306","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}
Open CeramicsPub Date : 2025-04-22DOI: 10.1016/j.oceram.2025.100787
Wen Hsi Lee, C.R. Kuo, Hong En Chen
{"title":"A study on grain boundary barrier layer solid aluminum capacitors","authors":"Wen Hsi Lee, C.R. Kuo, Hong En Chen","doi":"10.1016/j.oceram.2025.100787","DOIUrl":"10.1016/j.oceram.2025.100787","url":null,"abstract":"<div><div>This study employs solid-state and chemical plating methods to fabricate aluminum grain boundary capacitors using Al@CuO composite materials. The materials were prepared under varying compaction pressures (200 psi, 500 psi, and 700 psi) and thermal treatments (450 °C, 500 °C, and 550 °C). The dielectric layer structure, consisting of aluminum oxide and copper oxide, was successfully synthesized, as evidenced by the crystal structures and chemical bonds of the constituent materials. XRD and XPS analyses confirmed the composition of the aluminum grain boundary capacitors. SEM and STEM data revealed a layered grain boundary structure. Observations of thermite reactions and solid-state diffusion mechanisms contributed to the formation of this layered structure. Each grain exhibited a core-shell configuration (aluminum core / aluminum oxide grain boundary layer / cuprous oxide shell layer / copper oxide grain boundary layer), effectively functioning as an equivalent capacitor.</div><div>AC impedance analysis revealed two semicircles for Al coated with CuO, compacted under 200 psi and thermally treated at 550 °C, respectively representing the grain boundary resistance of the Al₂O₃ dielectric with a 30 nm thickness and the grain boundary resistance of the CuO dielectric with a 376 nm thickness. Consequently, two grains form three equivalent capacitors, resulting in a solid-state aluminum grain boundary capacitor with promising dielectric properties, including a dielectric constant of 4059, a dielectric loss of 0.02, and an insulation resistance of 9.41 × 10⁴ kΩ.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100787"},"PeriodicalIF":2.9,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070694","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}
Open CeramicsPub Date : 2025-04-21DOI: 10.1016/j.oceram.2025.100783
Yunusu Bwambale , Vianney Andrew Yiga , Michael Lubwama
{"title":"Utilization of agricultural residues in ceramic tiles: A review","authors":"Yunusu Bwambale , Vianney Andrew Yiga , Michael Lubwama","doi":"10.1016/j.oceram.2025.100783","DOIUrl":"10.1016/j.oceram.2025.100783","url":null,"abstract":"<div><div>The cost of ceramics used in tile production has become increasingly prohibitive, yet the need for housing and other constructions requiring these materials keeps growing with increasing population across the globe. The cost of ceramics extraction is consequently increasing and the process results into depletion of land for cultivation and also poses high risks of environmental pollution. The review presents an extensive analysis of the utilization of agricultural residues in ceramic tile manufacturing over the past decade (2014–2024). Eight agricultural residues were analyzed, including sugarcane bagasse (SCB), rice husks (RH), wheat straws (WS), corn cobs (CC), coconut shells (CS), coffee husks (CH), palm kernel shells (PKS) and peanut shells (PS) for their suitability as fillers in ceramic tiles. These residues have been studied in terms of ashes and fibers. Most of these agricultural residue ashes have high silica content, leading to their utilization as supplementary cementitious materials (SCMs) to reduce on the amount of ceramics incorporated in tiles. High silica content in ash of agricultural residues plays the vital role of an effective pozzolan, leading to enhanced pozzolanic reactions. This results into better performance of ceramic tiles through improving its mechanical properties such as compressive strength and flexural strength. For the best combination of residues and ceramics, the percentage of porosity, water absorption and linear shrinkage reduces significantly while the bulk density and bending strength increases.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100783"},"PeriodicalIF":2.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874079","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}
Open CeramicsPub Date : 2025-04-21DOI: 10.1016/j.oceram.2025.100781
Aasir Rashid , Moritz Thiem , Merle Wellmann , Marc Bresser , Olaf Lindemann , Katharina-Sophia Wiegers , Jan Philipp Hofmann , Andreas Schulz , Armin Feldhoff , Anke Weidenkaff , Marc Widenmeyer
{"title":"Enhancing the hydrogen tolerance of La0.6Ca0.4Co0.2Fe0.8O3–d oxygen transport membranes with the substitution of 10 % Mn at the B site for plasma assisted CO2 conversion","authors":"Aasir Rashid , Moritz Thiem , Merle Wellmann , Marc Bresser , Olaf Lindemann , Katharina-Sophia Wiegers , Jan Philipp Hofmann , Andreas Schulz , Armin Feldhoff , Anke Weidenkaff , Marc Widenmeyer","doi":"10.1016/j.oceram.2025.100781","DOIUrl":"10.1016/j.oceram.2025.100781","url":null,"abstract":"<div><div>The tendency of mixed ionic electronic conducting (MIEC) materials to be highly selective towards oxygen allows for their use as oxygen transport membranes (OTMs). To be used as OTMs in plasma assisted CO<sub>2</sub> conversion and H<sub>2</sub> utilisation applications, requires high oxygen permeability, structural stability against reducing atmospheres (such as CO<sub>2</sub>, CO, H<sub>2</sub>, etc.) and suitable mechanical properties. La<sub>0.6</sub>Ca<sub>0.4</sub>Co<sub>1–</sub><em><sub>x</sub></em>Fe<em><sub>x</sub></em>O<sub>3–</sub><em><sub>d</sub></em> (LCCF) has already shown excellent tolerance against CO<sub>2</sub> and recently, in our previous work, its specific variant, La<sub>0.6</sub>Ca<sub>0.4</sub>Co<sub>0.2</sub>Fe<sub>0.8</sub>O<sub>3–</sub><em><sub>d</sub></em> (LCCF_6428) showcased hydrogen tolerance for upto 25 hours at 600 °C. In this work, we aim to further improve the hydrogen tolerance of LCCF_6428 by the introduction of strong Mn<sup>4+</sup>-O bonds into the material structure. To achieve this, 10 % Fe was substituted with manganese (Mn) at the <em>B</em> site of LCCF_6428. The resulting composition La<sub>0.6</sub>Ca<sub>0.4</sub>Co<sub>0.2</sub>Fe<sub>0.7</sub>Mn<sub>0.1</sub>O<sub>3–</sub><em><sub>d</sub></em> (LCCF_64271) was chosen and synthesized with ultrasonic spray synthesis (USS). The presence of strong Mn<sup>4+</sup>-O bonds led to a two-fold increase in the hydrogen tolerance of the membrane material with respect to LCCF_6428 with a slight 5 % decrease in oxygen permeability.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100781"},"PeriodicalIF":2.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870748","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}
{"title":"Development of ceramic membranes from sugarcane bagasse ash for microfiltration of biodiesel production effluents","authors":"Clarissa Ferreira Pin , Danieli Brandler , Gabriela Cristina Perusin Flores , William Mateus Kubiaki Levandoski , Giovani Jordi Bruschi , Deise Trevizan Pelissaro , Adriana Dervanoski , Eduardo Pavan Korf , Gean Delise Leal Pasquali","doi":"10.1016/j.oceram.2025.100782","DOIUrl":"10.1016/j.oceram.2025.100782","url":null,"abstract":"<div><div>Ceramic membranes have emerged as a promising solution for microfiltration processes, offering advantages such as cost-effectiveness, environmental benefits, and the utilization of abundant raw materials derived from agro-industrial solid waste. This study investigates the fabrication and performance of ceramic membranes composed of kaolin the varying proportions of sugarcane bagasse ash (SCBA - 40 wt % and 60 wt %), with focus on efficiency in treating biodiesel wastewater. The membranes were characterized (porosity, average pore diameter, and mechanical strength). The membrane containing 40 wt % SCBA - employed without any pre-treatment- exhibited the best overall performance, achieving porosity of 38.5 %, an pore diameter of 0.9 µm, and mechanical strength of 27 MPa, indicating a favorable balance between permeability and structural integrity. The best-performing membrane achieved removal efficiencies of color 83 % and turbidity 67 %. Microstructural analysis revealed a network of interconnected mesopores, which are particularly effective for the retention of colloidal and suspended contaminants.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"22 ","pages":"Article 100782"},"PeriodicalIF":2.9,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870749","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}