International Journal of Ceramic Engineering & Science最新文献_第7页

International Journal of Ceramic Engineering & Science Pub Date : 2025-12-17

引用次数: 0

The Influence of Ni2O3 Doping Concentration on the Alternating Current Aging Characteristics of ZnO Varistor Ni2O3掺杂浓度对ZnO压敏电阻交流老化特性的影响

International Journal of Ceramic Engineering & Science Pub Date : 2025-12-17 DOI: 10.1002/ces2.70033

Lei Wang, Jian Zhang, Wenbo Yu, Lu Li, Xin Cheng

{"title":"The Influence of Ni2O3 Doping Concentration on the Alternating Current Aging Characteristics of ZnO Varistor","authors":"Lei Wang, Jian Zhang, Wenbo Yu, Lu Li, Xin Cheng","doi":"10.1002/ces2.70033","DOIUrl":"10.1002/ces2.70033","url":null,"abstract":"When the surge arrester is subjected to the working voltage for an extended period, it undergoes alternating current (AC) aging, which degrades the arrester's parameters and affects the safety of the power grid. Ni2O3 is an important additive in the ZnO varistor formulation, and its doping ratio significantly influences the performance of the ZnO varistor. In this paper, varistor samples were fabricated by varying the doping ratio of Ni2O3 in the ZnO varistor, and accelerated AC aging experiments were conducted. The key electrical parameters and barrier parameters of the samples before and after aging were measured. The data show that as the doping ratio of Ni2O3 in the formulation increases, the volt-ampere characteristic curve of the arrester resistor shifts toward higher electric field strength before aging and toward higher current after aging. The E1mA after aging increased from 303.58 V/mm to 442.53 V/mm. The barrier height of the samples before and after aging first increased, then decreased, and then increased again. The maximum difference was observed when the doping ratio reached 1.50 mol%. After the AC aging test, the Ni content in all samples decreased, with the smallest change rate observed in ZYN10 and the largest in ZYN15, at approximately −12%.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145779374","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

Recent Joining Materials Options for Ceramic Matrix Composites 陶瓷基复合材料的最新连接材料选择

International Journal of Ceramic Engineering & Science Pub Date : 2025-12-17 DOI: 10.1002/ces2.70032

Valentina Casalegno, Monica Ferraris, Milena Salvo, Carla Malinverni

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International Journal of Ceramic Engineering & Science Pub Date : 2025-12-17

引用次数: 0

Fabrication of Novel Acid-Resistant Ceramic With High Abrasion and Flexural Strength Resistance 新型耐酸高耐磨性和抗弯强度陶瓷的制备

International Journal of Ceramic Engineering & Science Pub Date : 2025-11-04 DOI: 10.1002/ces2.70030

Mehrpoo Mohagheghi, Abolfazl Davodiroknabadi, Salar Zohoori, Shahnaz Nayebzadeh

{"title":"Fabrication of Novel Acid-Resistant Ceramic With High Abrasion and Flexural Strength Resistance","authors":"Mehrpoo Mohagheghi, Abolfazl Davodiroknabadi, Salar Zohoori, Shahnaz Nayebzadeh","doi":"10.1002/ces2.70030","DOIUrl":"10.1002/ces2.70030","url":null,"abstract":"In this research, the innovative ceramic production process begins with the drying and grinding of raw materials to a fine powder, which is then sieved and dampened before being shaped into ceramic forms using a stainless-steel mold. The material is pressed at 400 bars for 15 s to form a 10-mm-thick ceramic. The ceramic pieces are then air-dried and subjected to further drying in an oven before undergoing a heat treatment process. The heating is carefully controlled, increasing the temperature at a rate of 5°C per minute until a sintering temperature is reached, allowing the material to undergo the necessary thermal effects to form a durable ceramic structure. The innovative ceramics exhibit excellent performance in several key areas. In anti-acid tests, they demonstrate a 92% resistance to acid attack, significantly outperforming the control sample at 68%. This improved chemical durability is primarily attributed to the stable silicate alumina network and optimized body glaze composition, which minimizes leachability and enhances structural stability. Oxides such as CaO and MgO likely contribute indirectly by promoting phase stability and densification rather than direct acid neutralization. The abrasion resistance test reveals that the innovative ceramics maintain over 98% of their mass after 2100 rubbing cycles, owing to the high contents of SiO2, Al2O3, and MgO that enhance mechanical strength and wear resistance. Additionally, the flexural strength increased to 42.0 ± 0.3 MPa, compared with 38.4 ± 0.2 MPa for the control sample, due to the reinforcing effects of oxides such as CaO and MgO, which improve overall microstructural cohesion. These combined properties result in highly durable and chemically resistant ceramics suitable for demanding applications.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145469580","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

Viscosity and Crystallization Kinetics of Alkaline Earth Vanadate Glasses 碱土钒酸盐玻璃的黏度和结晶动力学

International Journal of Ceramic Engineering & Science Pub Date : 2025-10-17 DOI: 10.1002/ces2.70028

Adam Shearer, Maziar Montazerian, John C. Mauro

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Impact of La2O3 Substitution on the Structural, Thermal, and Radiation Shielding Properties of Sodium–Barium Borosilicate Glasses La2O3取代对硼硅钠钡玻璃结构、热学和辐射屏蔽性能的影响

International Journal of Ceramic Engineering & Science Pub Date : 2025-10-17 DOI: 10.1002/ces2.70029

Yurii Hordieiev, Aleksandr Zaichuk

{"title":"Impact of La2O3 Substitution on the Structural, Thermal, and Radiation Shielding Properties of Sodium–Barium Borosilicate Glasses","authors":"Yurii Hordieiev, Aleksandr Zaichuk","doi":"10.1002/ces2.70029","DOIUrl":"10.1002/ces2.70029","url":null,"abstract":"This study investigates the impact of progressively substituting sodium oxide (Na2O) with lanthanum oxide (La2O3) in sodium–barium borosilicate glasses with the general formula 60B2O3–20BaO–10SiO2–(10-m)Na2O–mLa2O3 (m = 0, 2.5, 5, 7.5, and 10 mol%). Structural, thermal, physical, and gamma-ray shielding properties were comprehensively analyzed to elucidate composition-structure-property relationships. X-ray diffraction and FTIR analyses confirmed significant structural modifications and preserved amorphous characteristics with increased La2O3 content. Thermal analyses demonstrated a marked enhancement in glass transition temperature (from 538°C to 630°C) and crystallization resistance, associated with increased La2O3 content. The 5 mol% La2O3 composition showed the highest thermal stability (ΔT = 234°C). Density increased by 19.4% (3.09–3.69 g/cm3), enhancing radiation shielding performance. Theoretical shielding assessment via the PSD/Phy-X platform revealed that the mass attenuation coefficients improved by 52% at 0.015 MeV, whereas the half-value layer decreased by nearly 30% at 15 MeV in the fully substituted glass. These findings demonstrate that La2O3 substitution offers a promising approach for tailoring borosilicate glasses for applications requiring enhanced thermal stability and radiation shielding performance.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145317352","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

Innovative Application of Traditional Paper Marbling Technique in the Fabrication of Ceramic Glazes 传统纸大理石纹工艺在陶瓷釉料制作中的创新应用

International Journal of Ceramic Engineering & Science Pub Date : 2025-09-30 DOI: 10.1002/ces2.70027

Zeinab Abedian Jelodar, Somayeh Noghani

{"title":"Innovative Application of Traditional Paper Marbling Technique in the Fabrication of Ceramic Glazes","authors":"Zeinab Abedian Jelodar, Somayeh Noghani","doi":"10.1002/ces2.70027","DOIUrl":"10.1002/ces2.70027","url":null,"abstract":"This research introduces an innovative approach for decorating ceramic surfaces through systematic reformulation of the historic paper marbling process for application in ceramic glaze. Despite as much as marbling has a longstanding history in the paper, textile, and diverse decorative arts, application in ceramics is largely unexamined. In this research, both water-based and oil-based marbling formulations, utilizing traditional materials such as tragacanth, eremurus mucilage, gum Arabic, ox-gall, and linseed oil were developed and optimized for underglaze, overglaze, and colored-glaze techniques. The experimental process consisted of forming stable floating pigments and adapting designs on size, which were then successfully transferred onto ceramic bisque surfaces. Firing schedules and glaze formulas were methodically adjusted to achieve the preservation of marbled patterns following firing. The findings demonstrate that the enhanced marbling technique facilitates the development of complicated, decorative effects on ceramic substances, thereby addressing earlier restrictions with color control, pattern delicacy, and material compatibility. Among the tested approaches, the underglaze marbling method employing gum Arabic as a binder yielded the most favorable visual quality and overall performance. This cross-disciplinary development not only enriches the aesthetic potential of ceramic art but also offers a replicable approach to incorporating historic marbling processes into contemporary ceramic technologies. The results yield new knowledge on material properties, process optimization, and innovative potential of traditional processes in contemporary ceramic design.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197298","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

Finite Element Analysis of R-Curve Behavior in Ceramics Using the Damage Model Based on the Cohesive-Zone Relationship 基于黏聚区关系损伤模型的陶瓷r曲线有限元分析

International Journal of Ceramic Engineering & Science Pub Date : 2025-09-17 DOI: 10.1002/ces2.70025

Mostafizur Rahman, Taiyo Maeda, Toshio Osada, Shingo Ozaki

{"title":"Finite Element Analysis of R-Curve Behavior in Ceramics Using the Damage Model Based on the Cohesive-Zone Relationship","authors":"Mostafizur Rahman, Taiyo Maeda, Toshio Osada, Shingo Ozaki","doi":"10.1002/ces2.70025","DOIUrl":"10.1002/ces2.70025","url":null,"abstract":"The evaluation of the R-curve behavior of ceramics, which is characterized by an increase in crack resistance with crack propagation, is crucial for advancing their implementation in engineering applications that require high reliability. In this study, we investigated the applicability of a finite element analysis (FEA) approach that implements a continuum damage model embedded with a cohesive-zone relationship to predict crack occurrence and the subsequent increase in crack resistance (toughness) of ceramics. Specifically, by employing a compliance-based method, the R-curve behavior was systematically examined under a bending load to assess the impacts of fracture stress and toughness on diverse chevron-notched specimens. The output critical stress intensity factors were found to increase with the crack length, eventually converging nearly to the input fracture toughness. Subsequently, the stable crack growth behavior obtained from the FEA and experiment under a three-point bending test of high-purity alumina was compared. A consistent result was confirmed in the force–displacement relationships. Furthermore, the R-curve behavior of the target material could be indirectly evaluated using the present approach. The results support the effectiveness of the present approach, highlighting the quantitative assessment of not only crack initiation but also R-curve behavior under arbitrary boundary conditions.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101496","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

Degradation of Abandonment Cement Plugs Under Prolonged Exposure to Completion Fluids: A Multi-Technique Evaluation 长时间暴露于完井液中的废弃水泥塞降解：一种多技术评价

International Journal of Ceramic Engineering & Science Pub Date : 2025-08-20 DOI: 10.1002/ces2.70023

Rafael A. Ventura, Ramón V. A. Ramalho, Willame G. S. Batista, Eduardo J. C. Lins, Júlio C. O. Freitas

{"title":"Degradation of Abandonment Cement Plugs Under Prolonged Exposure to Completion Fluids: A Multi-Technique Evaluation","authors":"Rafael A. Ventura, Ramón V. A. Ramalho, Willame G. S. Batista, Eduardo J. C. Lins, Júlio C. O. Freitas","doi":"10.1002/ces2.70023","DOIUrl":"10.1002/ces2.70023","url":null,"abstract":"This study investigates the durability of abandonment cement plugs applied in decommissioned oil wells in Brazil. The objective is to analyze the integrity of cement barriers over time to ensure the permanent sealing of wells and prevent leaks that could compromise the environment. The research involves the analysis of four cement slurry formulations: two without additives (with densities of 14.0 lb/gal and 15.8 lb/gal) and two with additives, including antifoaming agents, dispersants, fluid loss control, aiming to evaluate their physical and chemical resistance after exposure to completion fluids for 24 h, 30, 60, 90, and 180 days. The test specimens were aged at a temperature of 38°C and ambient pressure. The samples were subjected to compressive strength (CS) tests, x-ray diffraction (XRD), thermogravimetry (TG), scanning electron microscopy (SEM), and energy-dispersive x-ray spectroscopy (EDS). The results revealed significant concerns regarding well safety. The samples exposed to saline completion fluid for 180 days exhibited a decrease in CS, highlighting a critical issue. One of the hypotheses for this reduction in mechanical strength is the leaching of calcite from the cementitious matrix and the formation of hydrocalumite. This study raises a discussion on the importance of continuous safety monitoring for decommissioned wells.","PeriodicalId":13948,"journal":{"name":"International Journal of Ceramic Engineering & Science","volume":"7 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ceramics.onlinelibrary.wiley.com/doi/epdf/10.1002/ces2.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869188","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