International Journal of Ceramic Engineering & Science最新文献_第5页

Microstructural and Nanomechanical Characterization of CrCoAlHf/YSZ Multilayer Coatings Deposited by DC/RF Magnetron Sputtering DC/RF磁控溅射沉积CrCoAlHf/YSZ多层涂层的微观结构和纳米力学特性

International Journal of Ceramic Engineering & Science Pub Date : 2026-02-19 DOI: 10.1002/ces2.70044

Syed Faizan Altaf, Atikur Rahman, M. F. Wani

{"title":"Microstructural and Nanomechanical Characterization of CrCoAlHf/YSZ Multilayer Coatings Deposited by DC/RF Magnetron Sputtering","authors":"Syed Faizan Altaf, Atikur Rahman, M. F. Wani","doi":"10.1002/ces2.70044","DOIUrl":"10.1002/ces2.70044","url":null,"abstract":"This study presents the microstructural, chemical, and nanomechanical behavior of multilayer coatings of Cr/CoAlHf/YSZ deposited on Inconel 718 alloy using combined DC/RF magnetron sputtering with a focus on coatings deposited at 300°C for high-temperature aerospace applications. FESEM and EDS analyses indicate the formation of a multilayer structure with high density and minimal porosity, as well as homogeneous elemental distribution of the Cr, CoAlHf, and YSZ layers, implying that no interfacial diffusion is occurring. X-ray diffraction (XRD) patterns confirm the formation of stable phases, including ZrO2, Y2O3, Cr, HfO2, and a Co–Cr–Al–Hf solid solution. Nanoindentation shows stable deformation behavior and high load-bearing capacity, where hardness exhibited an increasing trend from 7.94 to 11.25 GPa in the range of 500–2500 µN, decreasing to 10.70 GPa at 3500 µN, which is explained as the change of reverse indentation size effect (r-ISE) to conventional indentation size effect (ISE) for the change of applied loads. Nano-scratch testing at gradually increased ramp loads confirms good coating adhesion, characterized by stable frictional behavior and minimal surface damage. XPS survey analysis confirms the chemical integrity of the multilayer system, with both strong Zr3d and Y3p peaks indicating the YSZ top layer, and distinct signals for Co, Cr, Al, and Hf, indicating the underlying bond coat. Overall, the results reveal that deposition at 300°C is beneficial for favorable microstructural evolution, chemical stability, and enhanced nanomechanical performance, making the CoCrAlHf/YSZ multilayer a promising protective coating for Inconel 718 components exposed to extreme aerospace service environments.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"8 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147288297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructural and Nanomechanical Characterization of CrCoAlHf/YSZ Multilayer Coatings Deposited by DC/RF Magnetron Sputtering DC/RF磁控溅射沉积CrCoAlHf/YSZ多层涂层的微观结构和纳米力学特性

International Journal of Ceramic Engineering & Science Pub Date : 2026-02-19 DOI: 10.1002/ces2.70044

Syed Faizan Altaf, Atikur Rahman, M. F. Wani

{"title":"Microstructural and Nanomechanical Characterization of CrCoAlHf/YSZ Multilayer Coatings Deposited by DC/RF Magnetron Sputtering","authors":"Syed Faizan Altaf, Atikur Rahman, M. F. Wani","doi":"10.1002/ces2.70044","DOIUrl":"https://doi.org/10.1002/ces2.70044","url":null,"abstract":"This study presents the microstructural, chemical, and nanomechanical behavior of multilayer coatings of Cr/CoAlHf/YSZ deposited on Inconel 718 alloy using combined DC/RF magnetron sputtering with a focus on coatings deposited at 300°C for high-temperature aerospace applications. FESEM and EDS analyses indicate the formation of a multilayer structure with high density and minimal porosity, as well as homogeneous elemental distribution of the Cr, CoAlHf, and YSZ layers, implying that no interfacial diffusion is occurring. X-ray diffraction (XRD) patterns confirm the formation of stable phases, including ZrO2, Y2O3, Cr, HfO2, and a Co–Cr–Al–Hf solid solution. Nanoindentation shows stable deformation behavior and high load-bearing capacity, where hardness exhibited an increasing trend from 7.94 to 11.25 GPa in the range of 500–2500 µN, decreasing to 10.70 GPa at 3500 µN, which is explained as the change of reverse indentation size effect (r-ISE) to conventional indentation size effect (ISE) for the change of applied loads. Nano-scratch testing at gradually increased ramp loads confirms good coating adhesion, characterized by stable frictional behavior and minimal surface damage. XPS survey analysis confirms the chemical integrity of the multilayer system, with both strong Zr3d and Y3p peaks indicating the YSZ top layer, and distinct signals for Co, Cr, Al, and Hf, indicating the underlying bond coat. Overall, the results reveal that deposition at 300°C is beneficial for favorable microstructural evolution, chemical stability, and enhanced nanomechanical performance, making the CoCrAlHf/YSZ multilayer a promising protective coating for Inconel 718 components exposed to extreme aerospace service environments.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"8 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147288298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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International Journal of Ceramic Engineering & Science Pub Date : 2026-02-19

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International Journal of Ceramic Engineering & Science Pub Date : 2026-02-15

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Stuck on Glass: A Review of Polymer and Polymer Nanoparticle Composite Coatings in Glass Technology 粘在玻璃上：聚合物和聚合物纳米复合涂层在玻璃技术中的研究进展

International Journal of Ceramic Engineering & Science Pub Date : 2026-02-15 DOI: 10.1002/ces2.70043

Shaylee M. Becerra, Hande Özbayraktar, Erhan Kilinc, John C. Mauro

{"title":"Stuck on Glass: A Review of Polymer and Polymer Nanoparticle Composite Coatings in Glass Technology","authors":"Shaylee M. Becerra, Hande Özbayraktar, Erhan Kilinc, John C. Mauro","doi":"10.1002/ces2.70043","DOIUrl":"10.1002/ces2.70043","url":null,"abstract":"Polymers have a vast range of beneficial properties making them desirable coating materials. They are cost-effective, easy to manufacture, and can be modified for improved properties. Adding an inorganic filler into a polymer coating improves its properties and expands its potential applications. Polymer nanoparticle composite (PNC) coatings possess the qualities of the polymer along with increased versatility and mechanical properties from the inorganic nanoparticle. Polymer and PNC coatings have played an advantageous role in tailoring glass surface properties for a variety of products. They have provided many benefits such as antibacterial and self-cleaning properties, as well as increased strength. Application of coatings to glass products spans across multiple industries including construction, automotive, pharmaceutical, packaging, and renewable energy. This review will cover common polymers and nanoparticles used for coatings on glass. The structure and properties of these polymers will be reviewed with a short introduction to the general structure of polymers. A brief overview of the mechanisms of adhesion will be followed by the specifics of adhesion between the glass and polymer. Three cost-efficient coating methods will be detailed with relative advantages and disadvantages. Perspectives on future research and applications will be discussed.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"8 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146217161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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International Journal of Ceramic Engineering & Science Pub Date : 2026-01-27

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Incorporation of Coconut Fibers Into Clay-Based Mortars: A Study on Mechanical and Microscopic Behavior 椰子纤维掺入粘土基砂浆：力学和微观行为研究

International Journal of Ceramic Engineering & Science Pub Date : 2026-01-27 DOI: 10.1002/ces2.70040

Gabriela Machado Guimarães Ferreira, Sebastião Ribeiro

{"title":"Incorporation of Coconut Fibers Into Clay-Based Mortars: A Study on Mechanical and Microscopic Behavior","authors":"Gabriela Machado Guimarães Ferreira, Sebastião Ribeiro","doi":"10.1002/ces2.70040","DOIUrl":"10.1002/ces2.70040","url":null,"abstract":"Amid growing environmental concerns and the search for sustainable building materials, this study investigated the mechanical and microstructural behavior of clay-based mortars reinforced with coconut fibers. Mixtures were produced in which natural sand was replaced by sand and clay residues, with fiber additions of 2.5% and 5% by weight of cement. The mortars were evaluated in fresh and hardened states, compressive and flexural strengths, and through scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS), and x-ray diffraction (XRD) analyses. The clay residue produced compressive strength values comparable to the reference mixture. The incorporation of 5% coconut fibers resulted in a statistically significant increase in flexural strength compared to the non-reinforced mortar, despite the formation of shrinkage-induced microcracks. The analysis confirmed the presence of quartz, kaolinite, orthoclase, and calcium aluminum silicate. The results highlight the potential for applying waste and natural fibers in eco-efficient mortars, emphasizing the importance of curing and moisture control.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"8 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Viscosity Measurement Techniques for High-Temperature Oxide Glass-Forming Systems 高温氧化玻璃成型系统粘度测量技术

International Journal of Ceramic Engineering & Science Pub Date : 2026-01-14 DOI: 10.1002/ces2.70038

Bahareh Kheilnezhad, Maziar Montazerian, Seong H. Kim, John C. Mauro

{"title":"Viscosity Measurement Techniques for High-Temperature Oxide Glass-Forming Systems","authors":"Bahareh Kheilnezhad, Maziar Montazerian, Seong H. Kim, John C. Mauro","doi":"10.1002/ces2.70038","DOIUrl":"10.1002/ces2.70038","url":null,"abstract":"Viscosity is a fundamental physical property that governs the flow and processing behavior of glass-forming liquids. During glass manufacturing processes, it is thus important to know how rheological properties are influenced by variables such as temperature, chemical composition, and the presence of any inclusions within the melt. There is extensive literature describing theoretical models for calculating the viscosity of oxide glass-forming systems; resources dedicated to experimental methodologies for measuring oxide glass viscosity are comparatively scarce. This review therefore focuses on direct viscometry techniques as well as indirect approaches for measuring viscosity including differential scanning calorimetry (DSC) and dilatometry combined with the Mauro–Yue–Ellison–Gupta–Allan (MYEGA) model. In addition, we highlight emerging machine-learning approaches, which offer complementary insights into glass viscosity, particularly in complex multicomponent systems. Such machine learning-based methods require large and high-quality datasets for training and validation, underscoring the vital importance of experimental measurements in establishing reliable viscosity values. Overall, the primary goal of this review is to fill a gap in the literature regarding experimental methodologies for viscosity measurement of oxide glasses, explaining their underlying principles, highlighting the challenges faced by researchers, and emphasizing the continued necessity of experimental viscosity measurements alongside theoretical and computational approaches.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70038","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146002105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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International Journal of Ceramic Engineering & Science Pub Date : 2026-01-14

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International Journal of Ceramic Engineering & Science Pub Date : 2026-01-13

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