Ceramics International最新文献

{"title":"3D printing of cordierite glass-ceramics","authors":"Weilong Ren ,&nbsp;Wei Liu ,&nbsp;Xin Luo ,&nbsp;Zhiyuan Liu ,&nbsp;Changyong Liu ,&nbsp;Zhangwei Chen","doi":"10.1016/j.ceramint.2024.11.139","DOIUrl":"10.1016/j.ceramint.2024.11.139","url":null,"abstract":"<div><div>Compared to traditional ceramic materials, glass-ceramics can also exhibit superior properties and are now widely used in cutting-edge national defense industries technology, aerospace, electronics, construction, and other fields. In this study, it is for the first time reported that novel photopolymerization 3D printable slurries using cordierite glass ceramic powder were prepared. The effects of slurry properties and printing process parameters on the warpage of the printed samples were studied. Cordierite glass-ceramic parts fabricated using photopolymerization 3D printing and heat treatment processes were studied to evaluate the effects of sintering parameters on the properties of the samples. The obtained additively manufactured cordierite glass-ceramics exhibit excellent microstructural and mechanical properties, with a maximum bending strength of 181 MPa, an increase of 95.66 % compared to that of the previously reported 3D printed cordierite ceramics. The underlying mechanisms of the glass and ceramic phase characteristics influence the density and the mechanical properties during and after the courses of sintering were also investigated and unveiled in detail. This study provides a viable method for manufacturing complex-shaped cordierite glass-ceramic components using 3D printing.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 2","pages":"Pages 1632-1642"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrosion behavior of magnesium-aluminum spinel in low-temperature electrolytes","authors":"Guozhen Zhao ,&nbsp;Meng Xiu ,&nbsp;Feigang Yuan ,&nbsp;Guangping Wang ,&nbsp;Jianhua Liu","doi":"10.1016/j.ceramint.2024.11.210","DOIUrl":"10.1016/j.ceramint.2024.11.210","url":null,"abstract":"<div><div>Magnesium-aluminum spinel composite is a novel material designed for low-temperature aluminum electrolytic baths without a ledge profile. In this study, multi-doped magnesium-aluminum spinel was successfully prepared, and its corrosion behavior in low-temperature aluminum electrolytes was investigated. The multi-doped magnesium-aluminum spinel exhibited high relative density and homogeneous grain structure. The addition of lithium fluoride and potassium fluoride altered the physical structure of the aluminum electrolytes. A corundum phase was observed on the surface of the corroded multi-doped magnesium-aluminum spinel. The average corrosion depth and static corrosion rate were found to be related to the electrolyte composition and liquidus temperature. Notably, the corrosion rate decreased as the exposure time increased.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 2","pages":"Pages 2303-2314"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Ni doping on the acetone vapor sensing performance of ZnO nanofibers","authors":"Niranjan.N. Prabhu ,&nbsp;B. Shivamurthy ,&nbsp;S. Anandhan ,&nbsp;B.V. Rajendra ,&nbsp;Suresh.D. Kulkarni","doi":"10.1016/j.ceramint.2024.11.055","DOIUrl":"10.1016/j.ceramint.2024.11.055","url":null,"abstract":"<div><div>Nickel-doped zinc oxide (NiZ) nanofibres (NFs) were fabricated using sol-gel electrospinning (ES) technique followed by pyrolysis from an aqueous solution of polyvinyl alcohol/zinc acetate/nickel acetate tetrahydrate. The morphology of the NiZ NFs was analyzed using Scanning Electron Microscopy (SEM), which revealed a uniform and well-defined fibrous structure. X-ray diffraction (XRD) results indicated complete removal of the organic phase from NiZ NFs during pyrolysis. The structural analysis confirmed the incorporation of Nickel (Ni) into the Zinc oxide (ZnO) lattice without altering its wurtzite crystal structure. The optical properties and bandgap variations were evaluated using UV–visible spectroscopy, which indicated a bandgap narrowing with increasing Nickel doping. The Photoluminescence (PL) spectroscopy confirmed the presence of defect states and recombination processes in the NFs. The gas sensing performance was investigated by measuring the response to various analytes at a concentration of 50 ppm with varying operating temperatures. The results indicated that the highest response was observed for 5 w% NiZ NFs towards acetone vapors. The response and recovery time were recorded at 80 s and 60 s. The enhanced sensitivity is attributed to the optimal doping concentration, which significantly improves the surface reaction and charge carrier mobility.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 730-740"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing corrosion resistance of mild steel with a hybrid surface coating: Film-forming zinc titanate/oleic acid composites","authors":"P. Ajay,&nbsp;V. Velkannan,&nbsp;P. Ram Kumar,&nbsp;M. Kottaisamy","doi":"10.1016/j.ceramint.2024.11.058","DOIUrl":"10.1016/j.ceramint.2024.11.058","url":null,"abstract":"<div><div>Coatings made from ceramic materials have shown remarkable effectiveness in preventing surface corrosion on mild steel (MS) surfaces. The coating's stability was enhanced by incorporating various elements into the matrix. This study incorporated an organic fatty acid, specifically oleic acid (OA)into the zinc titanate (ZT). It forms a ZT/OA hybrid film-like coating on the MS surface. The synthesized ZT/OA nanomaterials were thoroughly characterized using PXRD, FT-IR, and SEM. The cubic spinel structure of ZnTiO₃ and its spherical morphology were revealed from these techniques. The ZT/OA composites were applied to the surface of mild steel, and a film was formed under ambient conditions at a temperature of 150 °C. An investigation was conducted on the electrochemical corrosion behaviors of ZT/OA composites in three electrode systems using both saline and acidic mediums. This study involved measuring the impedance and Tafel polarization corrosion data. The results indicate that the ZT40 (60 wt% oleic acid-doped) sample Showed a significantly higher resistance of 37638 Ω cm², coupled with an impressive inhibition efficiency of 99.3 % under saline conditions. Furthermore, under acidic conditions, the ZT40 sample exhibited excellent performance, as evidenced by the results of 691 Ω cm² and 97 % inhibition efficiency.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 751-763"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of precursor content on microstructure and properties of in-situ synthesized Ni60A-xTiC ceramic composite coating","authors":"Chao Zhang ,&nbsp;Rong Hu ,&nbsp;Shaowu Zhang ,&nbsp;Dongsheng Wang ,&nbsp;Peipei Zhang ,&nbsp;Ying Lei ,&nbsp;Wenchao Chen ,&nbsp;Huishu Wu ,&nbsp;Yuwen Zhang ,&nbsp;Xionggang Lu","doi":"10.1016/j.ceramint.2024.10.428","DOIUrl":"10.1016/j.ceramint.2024.10.428","url":null,"abstract":"<div><div>To improve the surface properties of copper components, Ni60A-xTiC composite coatings with different precursor (TiFe and Cr₃C₂) contents were fabricated on copper surface by plasma cladding in this paper. The surface of all composite coatings forms a ceramic film composed of a dense layer (TiO₂ and Ti₂O₃) and a loose layer (Fe₂O₃ and FeO). As the precursor content increases, the number and size of TiC particles in the composite coating have a tendency to increase, resulting in a gradual increase in microhardness. The wear resistance of the composite coating increases first and then decreases. Too high precursor content (20 wt %) can lead to poor interface connection and wear resistance deterioration of the coating. Furthermore, the melting loss resistance of the composite coating is significantly better than that of the Ni60A coating due to the barrier effect of the ceramic film, and it becomes better with the increase of precursor content. To sum up, the composite coating with 15 wt % precursor content is more suitable because of its smooth appearance, good interface connection and excellent comprehensive performance.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 226-239"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photocatalysis via inverse opal structures: Synthesis and characterization of TiO2/ZnO and ZnO/TiO2 composites using plasma-enhanced ALD","authors":"Hamsasew Hankebo Lemago ,&nbsp;Letícia Tolezani ,&nbsp;Tamás Igricz ,&nbsp;Dóra Hessz ,&nbsp;Petra Pál ,&nbsp;Csaba Cserháti ,&nbsp;Gergő Vecsei ,&nbsp;Barbara Sárközi ,&nbsp;Eszter Mónika Baradács ,&nbsp;Zoltán Erdélyi ,&nbsp;Imre Miklós Szilágyi","doi":"10.1016/j.ceramint.2024.10.465","DOIUrl":"10.1016/j.ceramint.2024.10.465","url":null,"abstract":"<div><div>Inverse opals (IO) based functional materials show potential in photocatalysis due to their unique light interaction properties. This study presents a low-temperature plasma-enhanced atomic layer deposition (PEALD) method for synthesizing TiO₂, ZnO, and composite IOs using a polystyrene nanoparticle-based opal template. We comprehensively characterized the obtained materials using SEM-EDX, TSEM, TG, FTIR, XRD, Raman, ellipsometry, photoluminescence (PL), and UV–Visible spectroscopy. SEM analysis confirmed the successful formation of PEALD IOs with a periodically ordered structure, enabling conformal coating while preserving their original architecture. XRD and Raman analysis also confirmed that the IOs consisted of anatase for TiO₂ and hexagonal wurtzite for ZnO. UV–Vis reflectance spectroscopy revealed strong UV absorption and modified photonic bandgaps (PBGs) for all materials. The bare and composite IOs exhibited PBGs in the visible region, suggesting that the arising “slow photon” effect might enhance photocatalysis. This study explored the photocatalytic degradation of 4-Nitrophenol (4-NP) and Rhodamine 6G (Rh6G) using pristine and composite IO photocatalysts under UV and visible light irradiation. Pristine TiO₂ and ZnO IOs demonstrated superior performance for 4-NP degradation under UV light. This can be attributed to two key factors: their highly ordered macroporous structure (with a large surface area for efficient dye adsorption, and their band gaps (3.0 eV for TiO₂ and 3.2 eV for ZnO) that enable strong absorption of UV light photons for effective pollutant degradation. Conversely, composite IOs (TiO₂/ZnO and ZnO/TiO₂) displayed higher activity for both test molecules under visible light due to a synergistic effect between bandgap harmonization and the PBG effect.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 339-352"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anchoring AuCu alloy nanoparticles on TiO2 nanosheets: Exploiting synergistic effects and directed electron transfer for enhanced photocatalytic H2 evolution","authors":"Yahao Zhao ,&nbsp;Furong Ye ,&nbsp;Changcun Han ,&nbsp;Peng Liu ,&nbsp;Wen Liu ,&nbsp;Yizhong Huang ,&nbsp;Xupeng Chen ,&nbsp;Jiayi Tian","doi":"10.1016/j.ceramint.2024.11.077","DOIUrl":"10.1016/j.ceramint.2024.11.077","url":null,"abstract":"<div><div>AuCu/TiO₂ composite photocatalysts were prepared by anchoring AuCu nanoparticles (NPs) on TiO₂ nanosheets using a simple photoreduction method. Visible diffuse reflectance spectra indicated that the AuCu/TiO₂ significantly enhanced light absorption in the visible region. Through photoluminescence spectroscopy and steady-state surface photovoltage experiments, AuCu/TiO₂ exhibits an excellent photogenerated electron transfer rate. In addition, photoelectrochemical experiments showed that AuCu/TiO₂ had a high photogenerated charge separation efficiency. AuCu/TiO₂ (1.0 wt%) exhibited the best performance, under full spectrum, the hydrogen evolution rate is 33.94 mmol g⁻¹ h⁻¹, which is 1.59 times and 1.66 times higher than that of single metal Au/TiO₂ (1.0 wt%) (21.28 mmol g⁻¹ h⁻¹) and Cu/TiO₂ (1.0 wt%) (20.42 mmol g⁻¹ h⁻¹), respectively. The results showed that AuCu NPs greatly enhanced the photocatalytic performance of the composite photocatalysts.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 940-948"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polymer nanocomposites based on flexible BaTiO3 networks anchored with gold nanoparticles towards simultaneous high dielectric permittivity and low loss","authors":"Yang Quan ,&nbsp;Li Lei ,&nbsp;Shuimiao Xia ,&nbsp;Qinyang Tang ,&nbsp;Zelong Chang ,&nbsp;Linwei Zhu ,&nbsp;Davoud Dastan ,&nbsp;Zhicheng Shi","doi":"10.1016/j.ceramint.2024.11.080","DOIUrl":"10.1016/j.ceramint.2024.11.080","url":null,"abstract":"<div><div>Polymer composites filled with conductive fillers have been proven to have ultra-high effective permittivity near percolation, but they usually have high dielectric loss due to the easy contact between the conductive fillers. Herein, a polymer composite with a three-dimensional BaTiO₃ ceramic skeleton loaded with gold nanoparticles, which effectively avoids the direct contact of gold nanoparticles, is proposed. Benefiting from numerous equivalent micro-capacitors and the Coulomb blockade effect of gold nanoparticles, obviously enhanced permittivity and low loss are concurrently achieved. Particularly, with a gold sputtering time of 12 min, a high permittivity of <span><span>47.7@10</span><svg><path></path></svg></span> kHz, which is approximately 454 % (i.e. from 8.2 to <span><span>47.7@10</span><svg><path></path></svg></span> kHz) of the PVDF matrix, is achieved in the composite. Meanwhile, a low loss of about 0.032, which is merely about 65 % that of pure PVDF (<span><span>0.0492@10</span><svg><path></path></svg></span> kHz) is maintained. This work provides an effective approach for designing polymer composites with high permittivity and low loss.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 972-979"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Devitrified silica minerals glass of tanohataite (LiMn2Si3O8F) mineral as anode material for lithium-ion batteries","authors":"Moataz G. Fayed ,&nbsp;Ashraf E. Abdel Ghany ,&nbsp;Rasha S. El-Tawil ,&nbsp;Ahmed M. Hashem ,&nbsp;Esmat Hamzawy ,&nbsp;Gehan T. El-Bassyouni ,&nbsp;Saad G. Mohamed","doi":"10.1016/j.ceramint.2024.11.012","DOIUrl":"10.1016/j.ceramint.2024.11.012","url":null,"abstract":"<div><div>Devitrified silica minerals glass was obtained from stoichiometric tanohataite (LiMn₂Si₃O₈F) mineral prepared by melt quench route. Low-quartz and cristobalite (∼19.5 %) were developed in glass during melt cooling and casting the glass melt. However, a scanning electron microscope (SEM) for the devitrified glass showed nanoscale particles scattered in a few crystallized spots. When it was tested as an anode for lithium-ion batteries, a relatively high initial capacity of ca.785 mAh g⁻¹ was obtained at 50 mA g⁻¹ as an initial discharge capacity. Very good stability with excellent capacity retention (sometimes it exceeds 100 %) was observed based on the 2nd discharge capacity until the 500th cycle with about 100 % coulombic efficiency. The sample showed good rate capability as it still delivers a capacity of 26 mAh g⁻¹ after increasing the current density 40 times of magnitude. Also, it is a flexible material as after this considerable load, it can restore 185 mAh g⁻¹ after returning to the initial low current (50 mA g⁻¹). The electrochemical performance was supported by electrochemical impedance (EIS) measurement, which showed a decrease in EIS and an increase in lithium diffusion upon extended cycling. This unique electrochemical performance for this multicomponent non-crystalline glass was formerly supported by XPS characterization, which emphasized the presence of Mn⁴⁺ in the synthesized sample<strong>.</strong></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 401-410"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photovoltaic Properties of Bismuth Vanadate/Bismuth Ferrite Heterostructures Prepared by Spin Coating","authors":"Dev Bahadur Khadka ,&nbsp;Suresh Sagadevan ,&nbsp;Md Arif Ul Islam ,&nbsp;Shinya Kato ,&nbsp;Tetsuo Soga","doi":"10.1016/j.ceramint.2024.11.020","DOIUrl":"10.1016/j.ceramint.2024.11.020","url":null,"abstract":"<div><div>This study investigates the photovoltaic performance of bismuth vanadate (BiVO₄)/bismuth ferrite (BiFeO₃) heterostructures. By varying the pre-annealing temperature of the BiVO₄ layer, we have achieved the significant enhancement in the open-circuit voltage (V_oc) with the spontaneous formation of the polarized Bi₄V₂O₁₁ interfacial layer. X-ray diffraction analysis confirms a pure rhombohedral distorted perovskite structure for BiFeO₃ and a monoclinic crystallographic nature for BiVO₄. SEM analysis exhibits a porous structure with small spherical grains in the BiVO₄ layer, with the dense and smooth surface of the BiFeO₃ layer. The heterostructures observed in a red-shifted absorption edge are compared with the individual materials, which indicates an improved light absorption. Tauc plot analysis has yielded the direct bandgap values of 1.88 eV and 1.83 eV for the BiVO₄ annealing temperatures at 150 and 500 °C, respectively. The overall power conversion efficiency (η) has remained low at 0.003 % and 0.005 %, demonstrating the potential of interfacial engineering to optimize the photovoltaic properties of BiVO₄/BiFeO₃ heterostructures.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 1","pages":"Pages 449-457"},"PeriodicalIF":5.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}