International Journal of Ceramic Engineering & Science最新文献

{"title":"Low thermal conductivity lanthanum zirconate nanofibrous membranes for thermal insulation","authors":"Hengchang Wang,&nbsp;Jie Xu,&nbsp;Mingyue Wei,&nbsp;Xuanyu Meng,&nbsp;Lang Lin,&nbsp;Xiaoying Feng,&nbsp;Feng Gao","doi":"10.1002/ces2.10181","DOIUrl":"https://doi.org/10.1002/ces2.10181","url":null,"abstract":"<p>Lanthanum zirconate (LZO) has high-temperature advantages, including a high melting point, low thermal conductivity, and high structure stability, which has the potential to be used in high-temperature thermal insulation field. However, low mechanical properties of LZO porous ceramics have limited further applications. In this work, LZO nanofibrous membranes were prepared by electrospinning, and the preparation parameters, including PVP content, spinning voltage, feeding rate, received distance, and the heating process, were investigated to optimize the microstructure of the nanofibrous membranes. The LZO nanofibrous membranes with a grain size of 34.5 nm displayed good morphology after calcining at 1000°C. The LZO fibrous membranes had a very low thermal conductivity of 0.0716 W/m·K at room temperature, showing excellent insulating performance. This work indicates that LZO nanofibrous membranes are promising candidate materials for thermal insulation applications.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50138842","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}

{"title":"Evaluating the impact of journals in the ceramic sciences","authors":"Maziar Montazerian,&nbsp;John C. Mauro","doi":"10.1002/ces2.10180","DOIUrl":"https://doi.org/10.1002/ces2.10180","url":null,"abstract":"<p>This article examines various methods for evaluating the impact of journals in the ceramic sciences, including the <i>H</i>-index, journal impact factor (<i>JIF</i>), and the recently introduced <i>MZE</i>-index (defined by Montazerian–Zanotto–Eckert). We evaluate the performance of 31 reputable journals in ceramic science and technology and find that the <i>JIF</i> and <i>H</i>-index (which correlate to prolificacy and visibility) rise in tandem with the number of documents (<i>N</i>) each journal publishes. As an alternative metric, the <i>MZE</i>-index is used to distinguish the journals that stand at, above, or below the average of the field. It aids in better understanding the reputation and visibility of the journals relative to their peers by providing a fairer comparison of journals with different publication records and citation patterns and allowing for a more accurate comparison of their visibility compared to the average of the field. We also argue that beyond the commonly used <i>JIF</i> and <i>H</i> indices, other bibliometric indicators like <i>MZE</i> and peer review based on a journal's established reputation are necessary to determine their quality and choose them as the publication venue.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50143201","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}

{"title":"Use of waste husk from millet grain cultivation in the production of fired clay bricks","authors":"Aaron N. Adazabra,&nbsp;G. Viruthagiri","doi":"10.1002/ces2.10179","DOIUrl":"https://doi.org/10.1002/ces2.10179","url":null,"abstract":"<p>The consumption of colossal quantities of materials in the building industry has advanced the swift depletion of clean clay reserves. The use of organic additives in brick production is conserving clay resources. In addition, in some cases, it can lead to improvements in some material properties, such as decreasing thermal conductivity and increasing the capacity of the ceramic material in terms of thermal insulation. In the present investigation, waste millet husk (WMH) was incorporated in different proportions to clays to ascertain its influence on the fired brick properties. The raw materials were characterized for their physical, chemical, and thermal properties and found suitable for use in fired brick production. Additionally, the prepared modeled brick samples were tested for their physico-mechanical properties. The results indicated that linear shrinkage and weight loss increased, whereas bulk density decreased from 2.06 to 1.58 g/cm³ depending on WMH incorporation amount in the clays and firing temperature. Similarly, compressive strength reduced by up to 68%. Thermal conductivity beneficially reduced by 42% with the addition of 16 wt.% of WMH. The best results in terms of mechanical properties were obtained with 4 wt.% of the WMH. In terms of thermal insulation, the best results were exhibited in the samples admixed with 16 wt.% of WMH. The results showed that porosity and bulk density were critical determining factors that directly influence the bricks physico-mechanical properties.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50143200","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}

{"title":"Institutional and technical history of requirements-based strategic armor ceramics basic research leading up to the multiscale material by design materials in extreme dynamic environments (MEDE) program. Part I. Brief history of institutional changes and relevant major research programs","authors":"James W. McCauley","doi":"10.1002/ces2.10176","DOIUrl":"https://doi.org/10.1002/ces2.10176","url":null,"abstract":"<p>History, beginning in the late 1960s during the Vietnam war, of the institutional changes that took place because of various military operations and the resulting changes in policies and requirements in the Department of Defense and the Army: Army Force XXI, DDRE, and Army After Next; this will include the evolution of personnel and vehicle protection materials and the impact of major DARPA programs. The new requirements emphasized light weight and changes in the basic research approach, which led to the approval of a strategic research objective, “Armor Materials by Design.” At the same time, there were other National planning activities, workshops, and conferences advocating for the armor materials by design vision and the use of “figures of merit.” The Army Research Laboratory responded to these initiatives by initiating an “Enterprise for Multiscale Research of Materials” leading to the funding of a revolutionary new collaborative research program on “materials in extreme dynamic environment.” The role of the ARL Materials Center of Excellence will also be included.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50144083","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}

{"title":"Institutional and technical history of requirements-based strategic armor ceramics basic research leading up to the multiscale material by design materials in extreme dynamic environments (MEDE) program. Part II: Dynamic effects on the physics and mechanisms of advanced ceramics such as boron carbide","authors":"James W. McCauley,&nbsp;K. T. Ramesh","doi":"10.1002/ces2.10178","DOIUrl":"https://doi.org/10.1002/ces2.10178","url":null,"abstract":"<p>This paper follows a historical background on requirements-based strategic armor research, leading to the materials in extreme dynamic environments program presented in Part I, now focusing on the developed technical aspects and state-of-the-art. It starts with some background on dynamic testing techniques and a structural ceramics review. Then, selected armor ceramics research results and relevant single-grain anisotropic crystal physics, microstructure, and defect mechanics mechanisms: Including pivotal armor ceramics research results prior to the adoption of the strategic research objective (SRO). Next, multiscale characteristics, crystal physics, planar features, anisotropy, and relevant mechanisms will be described. The historic progression/evolution of multiscale lightweight armor ceramics research results will be summarized, including multiscale dynamic deformation and damage characteristics. The focus of the following sections will be on the role of defects, quasi-plasticity, and anisotropic crystal physics properties, including preexisting single grain synthesis and process-induced planar features (aka twins) and planar deformation features (PDF); for example, nano-amorphization in boron carbide. A new model for boron carbide processing planar features will be discussed. A schematic diagram illustrating the hypothetical formation of PDFs in a dynamic event is also presented. An expended canonical equation is introduced, suggesting possible strategies for boron carbide research using the canonical figures of merit approach. Finally, we highlight the efficacy of the materials by design process and approach in a multiscale framework for the simultaneous experimental and theoretical research trajectories guided by the accepted canonical equation.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50152550","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}

{"title":"Improved flexural strength and morphology of gypsum by wollastonite","authors":"Ayokunle Blessing Ikuyinminu,&nbsp;Christian Pritzel,&nbsp;Reinhard Trettin","doi":"10.1002/ces2.10177","DOIUrl":"https://doi.org/10.1002/ces2.10177","url":null,"abstract":"<p>The role of β-wollastonite on the flexural strength of gypsum obtained from the hydration of alpha-hemihydrate was investigated in this work. Starting with a synthesized Xonotlite obtained from the industry, dehydration was carried out at 880°C giving rise to the β-wollastonite which was identified by X-ray diffraction. The pure gypsum samples were prepared and compared with 3% and 5% replacements of the wollastonite. Increased flexural strengths were observed for 2, 7 and 28 days of storage in room temperature, normal water, and cold water. It was remarkable that the strength in water storage increased. The crystal morphology of the obtained gypsum was also improved in the presence of β-wollastonite.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10177","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50136620","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}

{"title":"High temperature confocal scanning laser microscopy analysis of dead-burned magnesia aggregates","authors":"Tyler Richards,&nbsp;Viraj Athavale,&nbsp;Jeffrey Smith,&nbsp;Ronald O'Malley","doi":"10.1002/ces2.10175","DOIUrl":"https://doi.org/10.1002/ces2.10175","url":null,"abstract":"<p>Dead-burned magnesia is a commonly used material in the manufacturing of refractories for the steelmaking industry. Aggregates of dead-burned magnesia contain secondary phases due to the impurities within the magnesite rock used in its production. While these phases can aid in sintering magnesia, they may have some impact on the high-temperature performance of the refractory product. High-temperature confocal scanning laser microscopy was utilized to observe the behavior of dead-burned magnesia aggregates at elevated temperatures (up to 1550°C). Liquid formation was detected even at temperatures below 1350°C. In some cases, this liquid quickly exuded from the aggregate surface. This liquid phase was characterized through microscopy and chemical analysis to determine the impact of impurity content on the formation and behavior of this liquid phase, and conclusions are drawn on its detrimental impact on the material's refractoriness in a steelmaking environment.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50127125","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}

{"title":"Pressure mapped squeeze flow (PMSF): Extending rheological characterization of mortars beyond traditional rheometry","authors":"Franco A. Grandes,&nbsp;Andressa C. A. Rego,&nbsp;Markus S. Rebmann,&nbsp;Fábio A. Cardoso,&nbsp;Rafael G. Pileggi","doi":"10.1002/ces2.10174","DOIUrl":"https://doi.org/10.1002/ces2.10174","url":null,"abstract":"<p>The rheometric techniques available for the evaluation of mortars involve a different set of flow conditions. Squeeze flow is based on the compression of the sample with gap reduction and geometric restrictions, providing important information even when phase separation occurs and an evaluation in conditions similar to those found in several practical situations for many classes of materials, including cement-based and ceramics. Traditional squeeze flow results are related to bulk normal force and height variation of a sample compressed between parallel plates. Additional information regarding boundary conditions at the interfaces or phenomena related to differential flow can be obtained through further instrumentation of the test. The combination of squeeze flow and a pressure mapping technique has been recently proposed, with great potential for the analysis of cement-based materials and other granular suspensions. In this work, four mortars were evaluated by the pressure mapped squeeze flow (PMSF) method in two different displacement rates, and new ways to analyze the results were developed to expand the understanding of the flow through the technique, including plotting the pressure along multiple circumferences and an analysis of variation in each radial position. PMSF results were also compared to rotational rheometry and flow table tests for the first time, and concepts of interparticle separation were employed to discuss microstructural aspects of the flow. Due to the variety of mix designs (admixtures, particle size distribution, air content, water content, and other factors), the mortars presented diverse behaviors, ranging from primarily viscous or plastic flows to more granular responses (related to friction between particles with localized formation of jammed structures due to liquid phase migration). This work is part of an effort to establish a foundation for PMSF as a rheometric method that can be used for the analysis of a wide range of materials.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50137160","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}

{"title":"Study of the bactericidal properties of ZnO/Ag0 nanoparticles in the treatment of raw sewage effluents","authors":"Micheline D. D. Moreira,&nbsp;Nivaldo F. Andrade Neto,&nbsp;Fernanda K. F. Oliveira,&nbsp;Carlos A. Paskocimas,&nbsp;Mauricio R. D. Bomio,&nbsp;Fabiana V. Motta","doi":"10.1002/ces2.10173","DOIUrl":"https://doi.org/10.1002/ces2.10173","url":null,"abstract":"<p>In this work, the antimicrobial treatment of raw sewage effluents (RSE) of residences was studied. For this, the RSE was collected from a treatment plant and the antimicrobial activity was evaluated using Ag⁰ decorated ZnO nanoparticles. ZnO/Ag⁰ nanoparticles were synthesized by a microwave-assisted hydrothermal method and sonochemical method. The effect of ZnO/Ag⁰ nanoparticles was evaluated by varying the concentration of the catalyst to the RSE, varying the amount of silver, and varying the contact time of the catalyst with the RSE, to optimize the process. The ZnO/Ag⁰ nanoparticles were characterized by X-ray diffraction, surface area using the Brunauer-Emmett-Teller methodology, and field emission scanning electron microscopy. The results indicate that the particles synthesized by the association of sonochemical and hydrothermal methods provide a better antimicrobial result against all tested bacteria. The results obtained in this manuscript indicate an alternative methodology in the removal of 99% of the bacteria from tailings from a real sewer, showing its applicability in the treatment for later consumption.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50154193","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}

{"title":"Performance evaluation for Ag and Au nanoparticle containing K2O-MgO-B2O3-Al2O3-SiO2-F glass sealants for SOFC application","authors":"Mrinmoy Garai,&nbsp;Shibayan Roy","doi":"10.1002/ces2.10172","DOIUrl":"https://doi.org/10.1002/ces2.10172","url":null,"abstract":"<p>The present work illustrates the effect of Ag and Au nanoparticle addition on the density, microstructure, phase formation and thermal performance of K₂O-MgO-B₂O₃-Al₂O₃-SiO₂-F glass-ceramics considered as a potential sealant material for solid oxide fuel cell (SOFC) applications. Addition of 0.2 wt.% Ag and Au nanoparticles caused a steep increase in the density of the base glasses in comparison to the glass containing an equivalent amount (0.2 wt%) of Cu nanoparticle. The glass-ceramics were prepared from the base glasses by controlled heat treatment at 900°C, a temperature relevant for SOFC operation. They were multicrystalline having fluorophlogopite (KMg₃AlSi₃O₁₀F₂) as the predominant crystal phase and norbergite (Mg₂SiO₄.MgF₂) and enstatite (MgSiO₃) as additional phases. Fluorophlogopite crystals form in both plate-like and rod-like morphologies within the glass matrix in the microstructure of the glass-ceramics. The size of the plate-shaped fluorophlogopite crystals increases for Ag nanoparticles containing glass-ceramics in comparison to either Cu or Au nanoparticles containing glass-ceramics. The density of the Ag and Au nanoparticle glass-ceramics are also considerably higher due to the formation of a compact interlocked crystalline microstructures. The Au nanoparticle containing glass-ceramics is characterized by a large thermal expansion (coefficient of thermal expansion, CTE= 11.29 × 10⁻⁶/K in 50–800°C range) which is comparable to other SOFC components. This glass/glass-ceramics sealant also possess maximum volume shrinkage in the range of 30–900°C as well as nearly constant CTE without any considerable decrease up to 10 cycles of SOFC operations making it suitable for SOFC sealant applications.</p>","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.10172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50153927","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}