International Journal of Applied Ceramic Technology最新文献

Effects of reaction conditions on geopolymerization and its flame-resistant fiber-enhanced geopolymer composites 反应条件对地聚合物及其阻燃纤维增强地聚合物复合材料的影响

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-27 DOI: 10.1111/ijac.15076

Yoonjoo Lee, Minkyeong Oh, Seongchan Ahn, WonSeok Lee, Dong-Gen Shin, Doo Hyun Choi, Jieun Lee, Chang-Bin Oh, Younki Lee

{"title":"Effects of reaction conditions on geopolymerization and its flame-resistant fiber-enhanced geopolymer composites","authors":"Yoonjoo Lee, Minkyeong Oh, Seongchan Ahn, WonSeok Lee, Dong-Gen Shin, Doo Hyun Choi, Jieun Lee, Chang-Bin Oh, Younki Lee","doi":"10.1111/ijac.15076","DOIUrl":"https://doi.org/10.1111/ijac.15076","url":null,"abstract":"Compared to fiber-enhanced polymer composites, geopolymer matrix composites have higher operating temperatures and advantageous flow properties for manufacturing ceramic matrix composites. However, to obtain flame-retardant composite materials, an investigation of the reaction behavior of matrix materials suitable for forming geopolymer structures is necessary. Geopolymers that follow the hydration reaction mechanism are formed via condensation reactions during the mixing and aging step, and the formation of the geopolymer structure is determined by the reaction characteristics of these two stages. In this study, the mixing ratio of the elements was kept constant (Si/Al 6.2, K is Al) to investigate the effects of the synthetic reaction conditions such as concentration, temperature, and time of geopolymerization during mixing and aging. Spectroscopic analysis was used to confirm and compare the formation behavior of the geopolymer structure according to each reaction condition, and the matrix composed of Si–O–Al bonds and Q3 and Q4 structures showed flame retardancy at 1000–1200°C. Furthermore, it was confirmed that the geopolymerization degree can be estimated from the viscosity change, and that the geopolymerization reaction time can be reduced by controlling the reaction temperature and viscosity of the reactants.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of hydroxides on the workability of the castables bonded with hydrated magnesium carboxylate 氢氧化物对水合羧酸镁浇注料和易性的影响

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-27 DOI: 10.1111/ijac.15073

Jianjun Chen, Lihua Lv, Qingfeng Wang, Chaofan Yin, Junrui Yang, Xue Li, Wei Luo, Ming Liu, Yinggang Zhao, Dongmei Shi

{"title":"The effect of hydroxides on the workability of the castables bonded with hydrated magnesium carboxylate","authors":"Jianjun Chen, Lihua Lv, Qingfeng Wang, Chaofan Yin, Junrui Yang, Xue Li, Wei Luo, Ming Liu, Yinggang Zhao, Dongmei Shi","doi":"10.1111/ijac.15073","DOIUrl":"https://doi.org/10.1111/ijac.15073","url":null,"abstract":"This study investigates the effect of Al(OH)3, Mg(OH)2, or Ca(OH)2 on the performance of HMC-bonded castables (HMCC), aiming to synergistically improve the workability and medium-temperature mechanical properties of HMCC. The results indicate that Al(OH)3 synergistically improves the medium-temperature mechanical properties, workability, and thermal shock resistance of HMCC. Specifically, Al(OH)3 prolonged the setting time from 21 to 27 min, whereas Mg(OH)2 and Ca(OH)2 reduced it to 19 and 7 min, respectively, due to the low solubility of aluminum citrate formed by Al(OH)3, which inhibits HMCC ionization. Additionally, Al(OH)3 increases the aspect ratio of hydration products, resulting in a 29.8% decrease in flowability compared with the control sample N. The addition of these compounds significantly improves medium-temperature mechanical properties, with Al(OH)3 increasing the cold modulus of rupture from .17 to 1.74 MPa at 500°C and from 1.24 to 2.51 MPa at 800°C. Moreover, Al(OH)3 improves the the residual strength ratio after thermal shock from 26.16% to 28.70%, unlike Ca(OH)2, which lowers it to 19.02%, by enhancing resistance to microcrack propagation.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of feedstock structure and spraying power on microstructure, mechanical and thermal properties of yttria-stabilized zirconia coatings 原料结构和喷涂功率对氧化钇稳定氧化锆涂层组织、力学和热性能的影响

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-27 DOI: 10.1111/ijac.15081

Liuyang Bai, Gewen Yi, Shanhong Wan, Wenping Li, Liying Xie, Jiyang Wang, Huwei Sun, Peiying Shi, Sang T. Pham

{"title":"Effects of feedstock structure and spraying power on microstructure, mechanical and thermal properties of yttria-stabilized zirconia coatings","authors":"Liuyang Bai, Gewen Yi, Shanhong Wan, Wenping Li, Liying Xie, Jiyang Wang, Huwei Sun, Peiying Shi, Sang T. Pham","doi":"10.1111/ijac.15081","DOIUrl":"https://doi.org/10.1111/ijac.15081","url":null,"abstract":"The influence of spraying power and YSZ (yttria-stabilized zirconia) feedstock powder on coating microstructures and properties has been demonstrated in the case of atmospheric plasma-sprayed YSZ coatings. Two types of YSZ powders, conventional and hollow-structural feedstock, were investigated. Microstructural defects of as-deposited YSZ coatings, such as porosity, interlamellar pores, and intrasplat cracks, were analyzed from the top view and fracture surfaces. Compared to conventional YSZ coating, the YSZ coating produced from hollow-structural feedstock demonstrated distinct features, including high porosity and good mechanical interlocking. However, with an increase in spray power, the porosity of almost all YSZ coatings decreased. Hollow-structured YSZ coating exhibits highly mechanical compliance and lower thermal conductivity as referenced to conventional YSZ coating. The processing parameters of conventional and hollow-structured YSZ coatings were optimized considering the correlations among processes, microstructure features, and properties in combination with adopting optimized feedstock powders, providing opportunities for continuing optimization of thermal barrier YSZ coatings.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on laser ablation quality and removal mechanism of SiCf/SiC composites by wavelength and thermal effect equation 利用波长和热效应方程研究SiCf/SiC复合材料的激光烧蚀质量和去除机理

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-22 DOI: 10.1111/ijac.15068

Juan Song, Bangfu Wang, Qingyang Jiang, Xiaohong Hao

{"title":"Study on laser ablation quality and removal mechanism of SiCf/SiC composites by wavelength and thermal effect equation","authors":"Juan Song, Bangfu Wang, Qingyang Jiang, Xiaohong Hao","doi":"10.1111/ijac.15068","DOIUrl":"https://doi.org/10.1111/ijac.15068","url":null,"abstract":"SiCf/SiC composites exhibit exceptional material properties, rendering them ubiquitous in aerospace, high-end automotive, and other advanced applications. However, these composites pose processing challenges due to their high hardness, brittleness, anisotropy, as well as heterogeneity. To investigate the material removal mechanisms and processing quality during picosecond laser ablation of SiCf/SiC composites, this study conducted linear scanning ablation experiments employing picosecond pulse lasers. The experiments were followed by a detailed analysis of the surface morphology, and elemental composition of the grooves under varying laser parameters. The findings reveal that laser power, scanning speed, repetition rate, and scanning duration exert a profound influence on the postablation groove characteristics. Specifically, as laser power increases, the groove width and depth broaden, accompanied by an expansion in both the ablation area and the heat-affected zone. During laser irradiation of SiCf/SiC composites, the chemical bonds within the matrix and fibers undergo disruption, initiating oxidation reactions, and the formation of oxides. The oxides primarily manifest as solid SiO, SiO2, and gaseous CO and CO2. Furthermore, this article introduces a graphical model that elucidates the material removal mechanism by using laser. Collectively, this research provides a theoretical foundation and technical guidance to achieve high performance cutting of SiCf/SiC composites.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of heat treatment on microstructure and tensile strength of monofilaments and bundles of aluminosilicate fibers 热处理对硅酸铝纤维单丝和束的微观结构和拉伸强度的影响

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-22 DOI: 10.1111/ijac.15086

Yang Liu, Yadan Wu, Xiaofei Chen, Xun Sun, Haitao Liu

{"title":"Impact of heat treatment on microstructure and tensile strength of monofilaments and bundles of aluminosilicate fibers","authors":"Yang Liu, Yadan Wu, Xiaofei Chen, Xun Sun, Haitao Liu","doi":"10.1111/ijac.15086","DOIUrl":"https://doi.org/10.1111/ijac.15086","url":null,"abstract":"Continuous alumina fiber serves as the reinforcement phase within the Al2O3/oxide composite system, and its behavior at elevated temperatures significantly influences the mechanical properties of the composite. This study focuses on a novel type of continuous aluminosilicate fiber (AF18) to investigate the effects of heat treatment temperature (ranging from 1100°C to 1400°C) and duration (2/4/8 h) on the microstructure and mechanical properties of the monofilament. Acknowledging that fibers typically exist in bundles within the composite material, the study further examines the changes in tensile strength of these bundles following heat treatment at various temperatures. The findings indicate that both the heat treatment temperature and duration contribute to an increase in grain size and an enhancement in the surface roughness of the fiber, with the temperature having a more pronounced effect than the duration. The tensile strength of the original fiber monofilament is measured at 2.08 GPa, while the tensile strength of the tow exhibits a reduction of approximately 10% compared to the monofilament, with the degree of attenuation correlating with the heat treatment conditions. Notably, with 8 h of heat treatment at 1200°C, the fiber retains approximately 70% of its tensile strength, demonstrating its capacity for long-term temperature resistance.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on the kinetics and structure of tungsten oxide nanopowder synthesized by an electrochemical oxidation process 电化学氧化法制备纳米氧化钨粉体的动力学及结构研究

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-22 DOI: 10.1111/ijac.15080

M. Salot, K. Santhy, D. Mandal, A. K. Pramanick, B. Rajasekaran, G. Avasthi, Sujoy K. Chaudhury

{"title":"A study on the kinetics and structure of tungsten oxide nanopowder synthesized by an electrochemical oxidation process","authors":"M. Salot, K. Santhy, D. Mandal, A. K. Pramanick, B. Rajasekaran, G. Avasthi, Sujoy K. Chaudhury","doi":"10.1111/ijac.15080","DOIUrl":"https://doi.org/10.1111/ijac.15080","url":null,"abstract":"Tungsten oxide possesses unique properties owing to its multiple oxidation states. They are produced by several techniques with each having their advantages and limitations. In this study, the hydrated tungsten oxide nanopowders with varied morphology were synthesized by electrochemical oxidation of WC-6Co scrap at room temperature. This process is efficient and requires low capital investment. The effect of processing parameters, namely voltage, molarity, temperature, and electrolyte stirring on yield, structure, morphology, and energy bandgap is studied. The X-ray diffraction (XRD) analysis showed that at low voltage and low molarity monoclinic WO3.2H2O nanoparticles are synthesized. In contrast, at high molarity and high voltage, orthorhombic WO3.H2O nanoparticles are synthesized. Further, the size of crystal decreases with the increase in voltage during electrochemical oxidation of WC-6Co pellet. The in-situ XRD analysis showed progressive transformation of as-synthesized nanopowder from orthorhombic to cubic crystal structure. Thermal treatments using microwave radiation and muffle furnace resulted in partial phase transformation of hydrated tungsten oxide to cubic WO3.H0.5 phase. The scanning electron microscopy and transmission electron microscopy analyses confirmed the formation of nanoplates, nanorods, and quantum dots depending on the processing parameters. The ultraviolet-visible spectroscopy showed a relatively lower energy bandgap of as-synthesized tungsten oxide nanopowder.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Additive manufacturing of ceramics via the laser powder bed fusion process 利用激光粉末床熔合工艺的陶瓷增材制造

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-22 DOI: 10.1111/ijac.15087

Abid Ullah, Mussadiq Shah, Zulfiqar Ali, Karim Asami, Asif Ur Rehman, Claus Emmelmann

{"title":"Additive manufacturing of ceramics via the laser powder bed fusion process","authors":"Abid Ullah, Mussadiq Shah, Zulfiqar Ali, Karim Asami, Asif Ur Rehman, Claus Emmelmann","doi":"10.1111/ijac.15087","DOIUrl":"https://doi.org/10.1111/ijac.15087","url":null,"abstract":"Additive manufacturing (AM) of ceramics presents both exciting opportunities and significant challenges, particularly with the laser-based AM processes. Ceramics are known for their special properties, such as high strength, corrosion resistance, and temperature stability, but their inherent brittleness and high processing demands make AM more complex. This review provides an updated overview of the most common AM techniques for ceramics, including direct energy deposition, binder jetting, laminated object manufacturing, and material extrusion-based techniques. However, the focus is placed on the laser powder bed fusion (LPBF) of ceramics, a technique that has gained increasing attention for its ability to fabricate complex ceramic parts with enhanced quality. The review delves into the key causes of critical defects commonly observed in LPBF, such as porosity, cracking, spattering, and surface roughness. Recent advancements in addressing these issues are discussed, along with the limitations of current defect prevention strategies. Furthermore, the review provides an updated analysis of the mechanical properties of LPBF-fabricated ceramics, giving insights into how processing parameters influence the performance of ceramic LPBF-printed parts. Modeling and simulation techniques are also reviewed, highlighting their role in enhancing understanding of ceramic behavior during LPBF. Overall, this review highlights recent progress and current challenges in ceramic AM techniques, while exploring future research opportunities, such as process optimization and defect prevention strategies.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ijac.15087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of B4C content and particle size on the mechanical properties of Al2O3-B4C composites B4C含量和粒径对Al2O3-B4C复合材料力学性能的影响

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-21 DOI: 10.1111/ijac.15067

Nazeer Mohammed, Ajit Kumar Naik, D. K. V. D Prasad, Lava Kumar Pillari, Lukas Bichler, Tapas Laha, Siddhartha Roy

{"title":"Influence of B4C content and particle size on the mechanical properties of Al2O3-B4C composites","authors":"Nazeer Mohammed, Ajit Kumar Naik, D. K. V. D Prasad, Lava Kumar Pillari, Lukas Bichler, Tapas Laha, Siddhartha Roy","doi":"10.1111/ijac.15067","DOIUrl":"https://doi.org/10.1111/ijac.15067","url":null,"abstract":"Alumina (Al2O3) ceramics and their composites are widely used in the cutting tool industries due to their superior mechanical properties. This study presents a comprehensive investigation of the influence of B4C content and particle size on the sinterability, microstructure, and mechanical properties of Al2O3-B4C composites fabricated using Spark Plasma Sintering (SPS). The relative density of the composites increased and residual porosity decreased as the B4C particle size in the powder blends decreased. The addition of B4C particles improved the mechanical properties of monolithic Al2O3 and the highest property enhancements were obtained for the composite with 30 vol% of the finest B4C particles. For this composition, with respect to monolithic Al2O3, the density was reduced by 11% and hardness, Young's modulus, indentation fracture toughness, and flexural strength increased by 24%, 8%, 51%, and 88%, respectively. The effect of the B4C particle size on the Young's modulus in relation to existing micromechanical models reveals that the composites with a fine B4C particles fit the Reuss model.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Bi0.9Sm0.1ScO3 regulation of Bi0.5Na0.46Li0.04TiO3-based energy storage properties Bi0.9Sm0.1ScO3调控bi0.5 na0.46 li0.04 tio3基储能性能的研究

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-21 DOI: 10.1111/ijac.15069

Zhongrui Du, Qiyi Yin, Chen Chen, Fan Si, Fei Lin, Xiangyu Zhu, Yulin Zhang, Mengjun Zhang, Hao Zu, Kunhong Hu, Fulin Zhang, Fukang Shi, Lu Li

{"title":"Study on Bi0.9Sm0.1ScO3 regulation of Bi0.5Na0.46Li0.04TiO3-based energy storage properties","authors":"Zhongrui Du, Qiyi Yin, Chen Chen, Fan Si, Fei Lin, Xiangyu Zhu, Yulin Zhang, Mengjun Zhang, Hao Zu, Kunhong Hu, Fulin Zhang, Fukang Shi, Lu Li","doi":"10.1111/ijac.15069","DOIUrl":"https://doi.org/10.1111/ijac.15069","url":null,"abstract":"In this study, (1-x)Bi0.5Na0.46Li0.04TiO3-xBi0.9Sm0.1ScO3(BNLT-xBSS) relaxation ferroelectric ceramics were successfully prepared by conventional solid phase method. Multiscale analyses such as XRD and EDS confirmed that these ceramics form a solid solution with a single-phase perovskite structure. As the doping amount of Bi0.9Sm0.1ScO3 increases, a smaller grain size is obtained at x = 0.1, and the breakdown strength increases to 350 kV/cm, resulting in a higher Wrec = 5.92 J/cm3, η = 82.2%. In addition, these ceramics demonstrate other excellent properties: (1) Thermal stability, with Wrec of 2.85 ± 0.06 J/cm3 and η of 86 ± 1.2% in the temperature range of 35°C–200°C; (2) Frequency stability, with Wrec of 2.9 ± 0.05 J/cm3 and η of 85.8 ± 1.1% in the frequency range of 5–150 Hz; (3) Fast charge/discharge rate, t0.9 is about 0.18 µs. The comprehensive experiments show that the ceramic can be used as a pulse capacitor in high-temperature environments and has great development potential.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-transparency AlON ceramics fabricated by pressureless sintering method 无压烧结法制备高透明AlON陶瓷

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2025-02-21 DOI: 10.1111/ijac.15072

Yanan Zhao, Xiangzhao Meng, Yuanlin Li, Lin Han, Xiaoping Lei, Xiao Yang, Ziyu An, Zhenzhu Kong, Bin Peng, Ming Liu

{"title":"High-transparency AlON ceramics fabricated by pressureless sintering method","authors":"Yanan Zhao, Xiangzhao Meng, Yuanlin Li, Lin Han, Xiaoping Lei, Xiao Yang, Ziyu An, Zhenzhu Kong, Bin Peng, Ming Liu","doi":"10.1111/ijac.15072","DOIUrl":"https://doi.org/10.1111/ijac.15072","url":null,"abstract":"Alumina nitride (AlON) ceramics have the advantages of wide transmission ranges, high-strength, and high-hardness, and these characteristics make it have potential applications in the fields of national defense and aerospace. However, the prolonged high-temperature (≥1900°C) sintering process severely reduces of its mechanical and optical properties far below the theoretical value in practice. In this work, we successfully fabricated AlON transparent ceramics exhibiting superior mechanical (bending strength of 293 MPa and hardness of 18 GPa) and optical properties (76.2% at 2100 nm), and the sintering temperature is approximately 50°C lower than that of conventional methods. Here, the first obtained high-activity and high-purity AlON powders through solid-state reaction method with secondary ball milling process, could effectively reduce both the sintering temperatures and durations. Subsequently, by optimizing the doping content of Y2O3, AlON ceramics were sintered at 1850°C, in which represent the minimal porosity at the grain boundaries and fine grains of uniform size, still keeping the superior mechanical and optical properties. The methods developed in this work are not only suitable for the large-scale production of high-activity and high-purity AlON powders but also for the preparation of large-scale AlON ceramics by using the casting process in future.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0