Open Ceramics最新文献_第2页

Structural and microstructural evolution of fused filament fabricated SiOC(N) via polymer-derived ceramics route 聚合物衍生陶瓷熔丝制备SiOC(N)的结构与微观结构演变

IF 2.8

Open Ceramics Pub Date : 2025-09-01 DOI: 10.1016/j.oceram.2025.100839

Rajat Chaudhary , Jonathan Selorm Degbedzui , Mattia Biesuz , Gian Domenico Sorarù

引用次数: 0

Use of ladle furnace slag as filler replacement in magnesium oxychloride cement: Towards sustainable 3D-printable building composites 使用钢包炉渣作为氯氧镁水泥的填料替代品：走向可持续的3d打印建筑复合材料

IF 2.8

Open Ceramics Pub Date : 2025-09-01 DOI: 10.1016/j.oceram.2025.100841

Ondřej Jankovský , Petr Lodňánek , Anna-Marie Lauermannová , Adéla Jiříčková , Jozef Vlček , Hana Ovčačíková , Michaela Topinková , Petra Maierová , Jiří Fiedor , Petr Miarka , Martina Záleská , Adam Pivák , Milena Pavlíková , Zbyšek Pavlík

{"title":"Use of ladle furnace slag as filler replacement in magnesium oxychloride cement: Towards sustainable 3D-printable building composites","authors":"Ondřej Jankovský , Petr Lodňánek , Anna-Marie Lauermannová , Adéla Jiříčková , Jozef Vlček , Hana Ovčačíková , Michaela Topinková , Petra Maierová , Jiří Fiedor , Petr Miarka , Martina Záleská , Adam Pivák , Milena Pavlíková , Zbyšek Pavlík","doi":"10.1016/j.oceram.2025.100841","DOIUrl":"10.1016/j.oceram.2025.100841","url":null,"abstract":"<div><div>In response to the global demand for CO<sub>2</sub> emissions reduction, Portland cement (PC) replacement with more eco-friendly materials has been focused on in material studies. One of the studied alternatives is magnesium oxychloride cement (MOC), which offers excellent mechanical properties and lower production temperatures. The ecological impact of MOC alone is significant, but if we incorporate waste material as a filler replacement in MOC composites, we can decrease overall emissions even more. In this paper, we focused on the development of an eco-friendly material with a safely incorporated ladle furnace slag (SL). Firstly, the SL was characterized by numerous analytical methods (XRF, XRD, SEM, EDS, STA-MS) to attain knowledge about its elemental and phase composition. In the following step, MOC composite materials with SL used as a silica sand partial replacement were prepared by casting. Such prepared materials were then characterized by XRF, XRD, SEM, EDS, and MIP. Furthermore, their structural and mechanical properties were assessed. Based on the obtained results, an optimized composition of mixtures was used for 3D printing to demonstrate the suitability of this material for this purpose. Finally, X-ray computed micro-tomography imaging was used to study the quality of printed cubes, in particular porosity and the amount of macroscopic defects. This paper presents an innovative approach in which waste SL from steel production can replace silica sand filler in significant quantities, demonstrating that such a designed material is suitable for additive manufacturing.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"23 ","pages":"Article 100841"},"PeriodicalIF":2.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144931885","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

Structural, optical, and magnetic properties of sol-gel method synthesized Zn0.5NixCo0.5-xFe2O4 nanoferrites 溶胶-凝胶法合成Zn0.5NixCo0.5-xFe2O4纳米铁氧体的结构、光学和磁性能

IF 2.8

Open Ceramics Pub Date : 2025-08-29 DOI: 10.1016/j.oceram.2025.100840

Abdien Y. Khalafallah , Mohamed A. Siddig , Abdullah Ahmed A Alghamdi , Obaidallah A. Algethami , Abdulraoof I.A. Ali , Rafat M. Ibrahim , Hassan H.E. Idris , Elsammani A. Shokralla

{"title":"Structural, optical, and magnetic properties of sol-gel method synthesized Zn0.5NixCo0.5-xFe2O4 nanoferrites","authors":"Abdien Y. Khalafallah , Mohamed A. Siddig , Abdullah Ahmed A Alghamdi , Obaidallah A. Algethami , Abdulraoof I.A. Ali , Rafat M. Ibrahim , Hassan H.E. Idris , Elsammani A. Shokralla","doi":"10.1016/j.oceram.2025.100840","DOIUrl":"10.1016/j.oceram.2025.100840","url":null,"abstract":"<div><div>Structural, optical, and magnetic characteristics of ferrite compounds with formula of Zn<sub>0.5</sub>Ni<sub>x</sub>Co<sub>0.5-x</sub>Fe<sub>2</sub>O<sub>4</sub> (where x varies from 0.0 to 0.4) were prepared with the sol-gel synthesis method. Analysis using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy indicated cubic spinel structure. Notably, the crystallite size showed to be decreased from 60.25 nm to 15.85 nm as Ni content increased, accompanied by enhancements of both volume and density. Optical assessments using UV–visible spectroscopy demonstrated reduction in absorbance values from 1.01 a.u. to 0.32 a.u. A slight increase observed in the energy band gap from 5.664 to 5.684 eV with increasing Ni substitution. The magnetic properties were influenced by the replacement of Ni<sup>+2</sup> with Co<sup>+2</sup> exhibiting superparamagnetic behavior, with coercivity values ranging from 26.422 to 126.680 Oe and saturation magnetization peaking at <em>x</em> = 0.2 (33.239 emu/g). The magnetic behavior suggests that the Ni-doped nanoparticles are promising materials for applications in sensing, soft magnets, and hyperthermia treatments.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"24 ","pages":"Article 100840"},"PeriodicalIF":2.8,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020589","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

Thermal cycling of YAG infiltration and plasma sprayed coatings as environmental barrier coating on ceramic heat shields for use in hydrogen operating gas turbines 用于氢气燃气轮机的陶瓷隔热板的YAG渗透和等离子喷涂涂层作为环境屏障涂层的热循环

IF 2.8

Open Ceramics Pub Date : 2025-08-18 DOI: 10.1016/j.oceram.2025.100837

J.C. Müller-Elmau , A. Göbel , P. Junge , J.T. Müller , T.C. Rousseau , O. Görke , C. Nikasch , S. Kiliani

引用次数: 0

Innovative green synthesis of zinc-doped lignin nanoparticles from almond shell wastes: Examining photocatalytic, antibacterial, and cytotoxicity 从杏仁壳废料中创新的绿色合成掺杂锌的木质素纳米颗粒：检查光催化，抗菌和细胞毒性

IF 2.8

Open Ceramics Pub Date : 2025-08-18 DOI: 10.1016/j.oceram.2025.100836

Amir Hossein Yousef Poor , Vahid Shirshahi , Zahra Sabouri , Majid Darroudi

{"title":"Innovative green synthesis of zinc-doped lignin nanoparticles from almond shell wastes: Examining photocatalytic, antibacterial, and cytotoxicity","authors":"Amir Hossein Yousef Poor , Vahid Shirshahi , Zahra Sabouri , Majid Darroudi","doi":"10.1016/j.oceram.2025.100836","DOIUrl":"10.1016/j.oceram.2025.100836","url":null,"abstract":"<div><div>In this study, zinc-doped lignin nanoparticles (Zn-doped lignin NPs) were synthesized from almond shell waste. The incorporation of Zn²⁺ into lignin NPs aimed to improve their physical, chemical, and biological properties. XRD patterns confirmed the amorphous nature of the doped nanoparticles. TEM and FESEM imaging revealed spherical NPs with an average diameter of 15.17 nm. The cytotoxicity of Zn-doped lignin NPs was assessed on the breast cancer MDA-MB-231 cell line, revealing significant toxicity with an IC<sub>50</sub> value of approximately 364 μg/mL after 48 h. Additionally, agar diffusion tests showed that Zn-doped lignin NPs exhibited stronger antibacterial activity than pure lignin NPs against <em>Acinetobacter baumannii</em> (<em>ATCC 19606</em> and clinical strains<em>)</em> and <em>Staphylococcus aureus</em> (<em>ATCC 25923</em> and clinical strains<em>)</em>. Moreover, the photocatalytic effects demonstrated the high efficiency of Zn-doped lignin NPs in degrading organic dyes such as Rhodamine B (91%, RhB) and methylene blue (88 %, MB) under UV light.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"23 ","pages":"Article 100836"},"PeriodicalIF":2.8,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144902345","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

Production of fluorine-doped silica bodies using the optimized Vi-Si-HIP manufacturing process from the combination of viscous sintering and gas phase fluorination with subsequent hot isostatic pressing 采用优化的Vi-Si-HIP制造工艺，由粘性烧结和气相氟化相结合，随后进行热等静压，生产含氟硅体

IF 2.8

Open Ceramics Pub Date : 2025-08-16 DOI: 10.1016/j.oceram.2025.100834

L. Krämer, G. Falk

引用次数: 0

Microstructure development during pyrolysis of wet-laid nonwoven-based CFRP for the manufacturing of ceramic matrix composites (CMC) 制备陶瓷基复合材料（CMC）的湿法无纺布基CFRP热解过程中的微观结构发展

IF 2.8

Open Ceramics Pub Date : 2025-08-16 DOI: 10.1016/j.oceram.2025.100835

Fiona Kessel , Luis Baier , Nils Hensch , Martin Frieß , Anna Markic , Thomas Bratzdrum , Dietmar Koch

{"title":"Microstructure development during pyrolysis of wet-laid nonwoven-based CFRP for the manufacturing of ceramic matrix composites (CMC)","authors":"Fiona Kessel , Luis Baier , Nils Hensch , Martin Frieß , Anna Markic , Thomas Bratzdrum , Dietmar Koch","doi":"10.1016/j.oceram.2025.100835","DOIUrl":"10.1016/j.oceram.2025.100835","url":null,"abstract":"<div><div>Fiber reinforcement plays a critical role in defining the properties of ceramic matrix composites (CMCs). Among various textile technologies, wet-laid nonwovens have gained attention because previous studies have shown that their method of production significantly influences ceramic formation during liquid silicon infiltration (LSI) [<span><span>1</span></span>]. This study investigates <em>in-situ</em> microstructural evolution during pyrolysis using microscopy in a small-scale furnace. Two carbon fiber-reinforced polymer (CFRP) types were examined: <em>single filament</em> and <em>fiber bundle</em> wet-laid nonwovens. Thermal analysis revealed distinct behaviors. In <em>single filament</em> samples, key cracking occurred around 610 °C due to matrix weakening and stress release. In contrast, <em>fiber bundle</em> samples showed crack formation at 150–300 °C and above 700 °C, driven by outgassing, partial matrix detachment, and matrix shrinkage. These mechanisms result in SiC-rich structures for <em>single filament</em> reinforced materials and carbon-rich, short fiber composites for bundle reinforced materials. The findings support tailored reinforcement design for application-specific CMC properties.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"23 ","pages":"Article 100835"},"PeriodicalIF":2.8,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879225","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

Study of the design process and thermomechanical properties of a low carbon porous fired clay-cork composite for building insulation 建筑保温用低碳多孔烧成粘土-软木复合材料的设计工艺及热力学性能研究

IF 2.8

Open Ceramics Pub Date : 2025-08-10 DOI: 10.1016/j.oceram.2025.100833

Fatima Zohra El Wardi , Khadija Annaba , Soumia Mounir , Youssef Maaloufa , Sara Belarouf , Abdelhamid Khabbazi , Badreddine El Haddaji

{"title":"Study of the design process and thermomechanical properties of a low carbon porous fired clay-cork composite for building insulation","authors":"Fatima Zohra El Wardi , Khadija Annaba , Soumia Mounir , Youssef Maaloufa , Sara Belarouf , Abdelhamid Khabbazi , Badreddine El Haddaji","doi":"10.1016/j.oceram.2025.100833","DOIUrl":"10.1016/j.oceram.2025.100833","url":null,"abstract":"<div><div>This study develops and evaluates a fired clay–cork composite with improved thermal insulation for sustainable construction. The composite is fabricated by incorporating cork particles into clay and firing at 780 °C, generating a porous structure from cork combustion. Thermal conductivity, diffusivity, and effusivity are measured using flash and asymmetrical hot plate methods and compared to theoretical models. Mechanical performance is assessed through compressive and flexural strength tests. Results show that increasing cork content (2–10 % by mass) significantly enhances porosity (16–59 %) and reduces bulk density (1261–620 kg/m³), with thermal conductivity decreasing from 0.356 to 0.130 W/m·K. However, mechanical strength drops with higher porosity, ranging from 5.64 MPa to 0.09 MPa in compression. The Schiller and Hasselman models best describe the strength–porosity behavior. Thermal simulations demonstrate energy and environmental savings up to 37 %, with a cork content of 3.68 % identified as the structural threshold for 4 MPa compressive strength. These findings support the development of low-carbon, thermally efficient building materials using cork, an industrial by-product, and contribute to sustainable construction solutions.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"23 ","pages":"Article 100833"},"PeriodicalIF":2.8,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827607","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

Cellular automaton modeling of the local corrosion of ZrO2-C refractories at slag/metal interfaces ZrO2-C耐火材料熔渣/金属界面局部腐蚀的元胞自动机建模

IF 2.8

Open Ceramics Pub Date : 2025-07-26 DOI: 10.1016/j.oceram.2025.100831

Shigefumi Matsumoto , Katsumi Morikawa , Koji Goda , Kiyoshi Goto , Hiroyuki Fukuyama

{"title":"Cellular automaton modeling of the local corrosion of ZrO2-C refractories at slag/metal interfaces","authors":"Shigefumi Matsumoto , Katsumi Morikawa , Koji Goda , Kiyoshi Goto , Hiroyuki Fukuyama","doi":"10.1016/j.oceram.2025.100831","DOIUrl":"10.1016/j.oceram.2025.100831","url":null,"abstract":"<div><div>Understanding local corrosion mechanisms of ZrO₂-C (ZG) refractories is essential for extending submerged entry nozzle (SEN) lifespan and improving continuous casting efficiency. This study and analytically investigated local corrosion of ZG refractories at the slag/metal interface, where molten steel contacts mold fluxes. Refractory wettability significantly affects ZrO₂ content and corrosion rate. To elucidate these interactions, we developed a model focused on the slag/metal interface, incorporating a two-dimensional cellular automaton (CA) method. Using actual ZG microstructures, the CA simulation visualized corrosion behavior, revealing new insights. Despite considering only wettability changes, the model successfully replicated (1) observed correlations between ZrO₂ content and corrosion rate, and (2) time-dependent changes in corrosion depth and ZrO₂ area fraction. These results were achieved for critical ZrO₂ area fractions <span><math><mrow><msub><mi>f</mi><mtext>Zc</mtext></msub><mo>=</mo><mn>0.01</mn></mrow></math></span>, <span><math><mrow><mn>0.15</mn></mrow></math></span>, and <span><math><mrow><mn>0.50</mn></mrow></math></span> in ZG refractories containing 79 and 86 wt.% ZrO₂. Findings support optimization of refractory design and process parameters.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"23 ","pages":"Article 100831"},"PeriodicalIF":2.8,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724737","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

Gyroid ceramic cellular filter using an additively-manufactured sacrificial mold toward off-gas management 利用增材制造的牺牲模具进行废气管理的陀螺陶瓷蜂窝过滤器

IF 2.8

Open Ceramics Pub Date : 2025-07-24 DOI: 10.1016/j.oceram.2025.100830

Byoungjin So, Jae Won Lee, Chang Hwa Lee, Jae Soo Ryu, Hwan-Seo Park

引用次数: 0