International Journal of Applied Ceramic Technology最新文献

Toward a low-temperature sintering of carbon fiber toughened high entropy boride composite with Co addition

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-28 DOI: 10.1111/ijac.14943

Feilong Huang, Hailong Wang, Cheng Fang, Mingliang Li, Wei Xie, Zhangfan Hu, Hailiang Wang, Yongqiang Chen, Gang Shao

{"title":"Toward a low-temperature sintering of carbon fiber toughened high entropy boride composite with Co addition","authors":"Feilong Huang, Hailong Wang, Cheng Fang, Mingliang Li, Wei Xie, Zhangfan Hu, Hailiang Wang, Yongqiang Chen, Gang Shao","doi":"10.1111/ijac.14943","DOIUrl":"https://doi.org/10.1111/ijac.14943","url":null,"abstract":"Dense Cf/(ZrHfNbTaCr)B2–SiC (CBS-Co) composite is successfully prepared at a low temperature of 1500°C by adding 5 vol.% Co. Liquid Co accelerates the particle rearrangement and significantly enhances the relative density of CBS-Co (95.2%). In situ formed Co2B phase by diffusion reaction bonds tightly with high entropy diboride (HEB) and SiC grains in CBS-Co. Due to the promotion of relative density and interfacial bonding strength, CBS-Co exhibits a high flexural strength (283 ± 23 MPa). Structural damages of carbon fibers are effectively prevented by compact fiber coating. The well-preserved fibers play dominant roles to increase the fracture toughness of CBS-Co (4.77 ± .5 MPa·m1/2). Moreover, SiO2-rich oxide layer can effectively heal flaws and inhibit oxygen diffusion, achieving relatively high flexural strength after oxidation at 1300°C of CBS-Co composite. This work provides a stepping stone for developing high-performance carbon fiber toughened HEB composites based on low temperature liquid-phase sintering technology.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762682","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

Microstructure and electrical properties of aluminum oxide-reinforced 3 mol% yttria-stabilized tetragonal zirconia polycrystals/TiSi2 composites by vacuum sintering

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-28 DOI: 10.1111/ijac.14938

Weikang Liu, Yucong Chen, Cong Wu, Liangying Tang, Zhenhua Yao

{"title":"Microstructure and electrical properties of aluminum oxide-reinforced 3 mol% yttria-stabilized tetragonal zirconia polycrystals/TiSi2 composites by vacuum sintering","authors":"Weikang Liu, Yucong Chen, Cong Wu, Liangying Tang, Zhenhua Yao","doi":"10.1111/ijac.14938","DOIUrl":"https://doi.org/10.1111/ijac.14938","url":null,"abstract":"3 mol% yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP)/TiSi2 composites reinforced with aluminum oxide (Al2O3) were synthesized by vacuum sintering. This case investigated the effects of Al2O3 content ranging from 0 to 10 wt.% on the microstructure, mechanical, and electrical properties of 3Y-TP/TiSi2 composites. According to the results, the addition of Al2O3 hindered the densification of the material, resulting in a deterioration in the relative density of composites. On the contrary, the hardness, flexural strength, and average grain size of the conductive phase increased. The maximum value of hardness and flexural strength was 88.70 HRA with 7.5 wt.% Al2O3 and 635.45 MPa with 10 wt.% Al2O3, respectively. In addition, the addition of Al2O3 increases the ratio of grain size between the conductive and insulating phases in composites, leading to a decrease in the percolation threshold and a reduction in resistivity from 4.00 to 1.60 × 10−3 Ω·cm with increasing Al2O3 content. In conclusion, Al2O3 reinforced the comprehensive mechanical properties and optimized the electrical properties of composites by changing the microstructure of the material.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762683","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

Alkali-activated rice husk ash-foamed composites: Correlation between pore structure, hydration, and hardening properties

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-28 DOI: 10.1111/ijac.14941

Ying-hua Bai, Yuan-liang Xie, Yu Chen

{"title":"Alkali-activated rice husk ash-foamed composites: Correlation between pore structure, hydration, and hardening properties","authors":"Ying-hua Bai, Yuan-liang Xie, Yu Chen","doi":"10.1111/ijac.14941","DOIUrl":"https://doi.org/10.1111/ijac.14941","url":null,"abstract":"Solid waste recycling plays a crucial role in environmental protection and energy conservation. This study explores the impact of the modulus of the alkaline activator on the dry density, water absorption rate, thermal conductivity, electromagnetic wave absorption, and compressive and flexural strength of rice husk ash (RHA)-foamed composites. Additionally, the foamed composite's micropore structure and hydration characteristics were characterized. For the first time, the study reveals the correlation between the pore structure, hydration products, and hardening properties of alkali-activated RHA-foamed composites. The study found that decreasing the modulus of the alkaline activator increased the amount of OH− ions available in the gel, and the number of micropores (r ≤ .1 µm) in the foamed composites increased from 7.1903% to 21.3156%. This resulted in the refinement of pore sizes and optimization of heat transfer paths. Meanwhile, increasing the C–S–H gel composition in the hydrated products improved its compressive and flexural strength. When the alkali modulus reaches 1, 28 days foamed composites display compressive strength of 8.33 MPa and thermal conductivity of .1404 W/(m·K). Furthermore, the superior pore structure improved the electromagnetic wave absorption of the foamed composites, yielding a reflection loss value of −12.02 dB.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759883","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 microstructures on the fracture properties of silicon nitride ceramics at elevated temperatures

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-27 DOI: 10.1111/ijac.14942

Tianbao Cheng, Jingwen Lv, Derong Wu, Danyan Wu

{"title":"Effects of microstructures on the fracture properties of silicon nitride ceramics at elevated temperatures","authors":"Tianbao Cheng, Jingwen Lv, Derong Wu, Danyan Wu","doi":"10.1111/ijac.14942","DOIUrl":"https://doi.org/10.1111/ijac.14942","url":null,"abstract":"Ceramic components often fail by a brittle fracture mode during the service process. Various factors can affect the fracture properties of ceramics. Experimental methods are usually used to investigate fracture behaviors. However, they give a composite result and the contribution to fracture from each factor is not clear. In the present work, a micromechanical model is developed to quantitatively characterize the fracture properties of ceramics at elevated temperatures. The control method for the microstructures of ceramics is proposed based on the Voronoi diagram. The temperature-dependent surface energy model of ceramics is revised by considering the effects of thermal decomposition and phase transformation. The interface energies at different temperatures are obtained by the inversion method. The criterion for crack propagation of ceramics at elevated temperatures is developed based on the G-criterion. The effects of temperature, grain size, grain size distribution, and grain boundary phase thickness on the fracture behaviors of silicon nitride are studied numerically.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762599","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

Bi2S3 nanorods supported on eggshell membrane electrodes for supercapacitor applications

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-27 DOI: 10.1111/ijac.14910

Tahani Mazyad Almutairi, Mehar Un Nisa, Sana Ijaz, Abdul Ghafoor Abid, Syed Imran Abbas Shah, Muhammad Fahad Ehsan

{"title":"Bi2S3 nanorods supported on eggshell membrane electrodes for supercapacitor applications","authors":"Tahani Mazyad Almutairi, Mehar Un Nisa, Sana Ijaz, Abdul Ghafoor Abid, Syed Imran Abbas Shah, Muhammad Fahad Ehsan","doi":"10.1111/ijac.14910","DOIUrl":"https://doi.org/10.1111/ijac.14910","url":null,"abstract":"A simple one-step hydrothermal process was employed to develop a favorable class of materials toward energy storage devices such as supercapacitors. The electrode material was characterized using state-of-the-art techniques, along with electrochemical parameters, including galvanostatic charge–discharge, electrochemical impedance spectroscopy, and cyclic voltammetry, toward investigate energy storage behaviors, such as specific capacitance (Csp), power density, and energy density. Scalable Bi2S3 nanorods deposited on eggshell membrane electrodes (ESMEs) exhibit a much greater Csp of 580.61 F/g on 1 A/g. Calculated energy densities are 29.3, 22.7, 18.8, and 15.0 W h/kg, whereas the power densities are 263.1, 349.3, 663.1, and 870.0 W/kg at 1, 2, 5, and with 10 A/g, respectively. These impressive conclusions are attributed to the enhanced electroactive surface area of Bi2S3/ESME (625 cm2). The unique structure of these materials, featuring a substantial surface area (78.3 cm2/g), contributes to this enhanced performance. The findings of this study could inform new strategies for boosting the performance of future applications.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762600","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

Development and validation of damage and failure models for the design of ceramic matrix composite components

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-25 DOI: 10.1111/ijac.14927

Thorsten Steinkopff, Roman Keppeler

引用次数: 0

The influence of components on the high-temperature performance and cutting performance of Si3N4-based ceramic tools

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-25 DOI: 10.1111/ijac.14924

Weiwei Xu, Zuoxuan Zhang, Boxiang Wang, Liyi Jiang, Guodong Yan, Li Guan

{"title":"The influence of components on the high-temperature performance and cutting performance of Si3N4-based ceramic tools","authors":"Weiwei Xu, Zuoxuan Zhang, Boxiang Wang, Liyi Jiang, Guodong Yan, Li Guan","doi":"10.1111/ijac.14924","DOIUrl":"https://doi.org/10.1111/ijac.14924","url":null,"abstract":"Three kinds of Si3N4-based ceramic tools (single-phase Si3N4, Si3N4/(W,Ti)C, and Si3N4/(W,Ti)C/Ni) were fabricated by microwave sintering. The phase composition, toughening mechanism, mechanical properties at room and high temperatures (800°C), and cutting performance of Si3N4-based ceramic tool materials with different additives were investigated. The results showed that the addition of (W,Ti)C and Ni had a significant effect on improving the mechanical properties at room temperature, although it reduced the phase transition conversion rate of Si3N4. Si3N4/(W,Ti)C tools had good high-temperature stability, while Si3N4/(W,Ti)C/Ni tools had a decrease of about 31.6% in high-temperature hardness and a decrease of 13.7% in high-temperature flexure strength. Under the premise of ensuring a certain level of fracture toughness, high-temperature hardness is the main influencing factor on the cutting life of cutting tools. The Si3N4/(W,Ti)C tools exhibit superior cutting performance whose cutting life reaches to 50.67 min which was 1.37–3.27 times longer than the other two ceramic cutting tools at the same cutting parameters when continuous dry cutting T10A. In addition, high-temperature flexure strength limits the choice of cutting speed, and lower high-temperature flexure strength can lead to rapid tool failure.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762589","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

Hydrothermal corrosion behavior of CrN/Cr2N-ZrN ceramic as a surrogate nuclear fuel

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-24 DOI: 10.1111/ijac.14914

Jia-Hao Chen, Lin-Lin Zhu, Ye-Hong Liao, Xu-Hui Chen, Chen-Hao Dong, Xing-Hao Tan, Hong-Lan Liu, Wei-Ming Guo, Qi-Sen Ren, Ming-Zhou Chen, Hua-Tay Lin

{"title":"Hydrothermal corrosion behavior of CrN/Cr2N-ZrN ceramic as a surrogate nuclear fuel","authors":"Jia-Hao Chen, Lin-Lin Zhu, Ye-Hong Liao, Xu-Hui Chen, Chen-Hao Dong, Xing-Hao Tan, Hong-Lan Liu, Wei-Ming Guo, Qi-Sen Ren, Ming-Zhou Chen, Hua-Tay Lin","doi":"10.1111/ijac.14914","DOIUrl":"https://doi.org/10.1111/ijac.14914","url":null,"abstract":"In this study, the hydrothermal corrosion behavior of zirconium nitride (ZrN) ceramics used as a surrogate nuclear fuel of UN, which were added with different amounts of CrN/Cr2N (0, 10, 20, and 30 vol.%), was investigated with the objective of increasing the loss-of-coolant accident (LOCA) tolerance of pressurized water reactor fuel. The ZrN-based ceramic samples with a density exceeding 98% were fabricated by using a spark plasma sintering system at 1700°C and applied stress of 30 MPa. Following 30 min of hydrothermal corrosion at 300°C, the oxidation layer thickness of pure ZrN ceramics was 9.11 ± 1.96 µm, whereas that of 30 vol.% CrN/Cr2N-ZrN was only 1.23 ± 0.3 µm, which indicated that CrN/Cr2N offered an excellent protection effect for ZrN. This work can, thus, provide engineering design guidance for the UN with high uranium density to increase the LOCA tolerance of current nuclear power generation systems.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762830","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

Influence of polypropylene fiber on the explosion resistance and fracture behavior of alumina–spinel castables

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-24 DOI: 10.1111/ijac.14923

Zhiqi Wang, Yangzhe Li, Wenjing Liu, Ning Liao, Yawei Li, Mithun Nath, Wen Yan

{"title":"Influence of polypropylene fiber on the explosion resistance and fracture behavior of alumina–spinel castables","authors":"Zhiqi Wang, Yangzhe Li, Wenjing Liu, Ning Liao, Yawei Li, Mithun Nath, Wen Yan","doi":"10.1111/ijac.14923","DOIUrl":"https://doi.org/10.1111/ijac.14923","url":null,"abstract":"Despite the successful preparation of high-performance calcium aluminate cement-bonded castables, occasional explosions have been reported. The occurrence of castable explosions is commonly attributed to water vapor overflow retarding and vapor pressure generated by rapid temperature rise. To enhance the explosion resistance of castables, methods such as incorporating various fibers (e.g., polypropylene [PP], polyethylene [ED], aramidic [Par], and steel fibers) have been proposed. However, limited studies have investigated the impact of fiber content on pore structure and fracture behavior of castables. This study aims to assess the influence of different PP fiber contents on comprehensive properties of castables. The explosion resistance was evaluated in conjunction with air permeability and pore structures, and fracture behavior was tested through wedge splitting tests at both room temperature and elevated temperatures. Results indicated that the addition of PP fibers significantly improves air permeability thus enhancing anti-explosive capabilities. Simultaneously, the combustion of fibers resulted in the formation of residual pores, which contributed to an enhanced resistance against stress-induced damage.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762834","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

Enhancement of strength and thermal shock resistance of MgO-MgAl2O4 ceramic filters with microporous MgO powder: Effect of α-Al2O3 micro-powder content

IF 1.8 4区材料科学

International Journal of Applied Ceramic Technology Pub Date : 2024-09-24 DOI: 10.1111/ijac.14921

Ying Liu, Wen Yan, Junjie Yan, Yajie Dai, Xiao Wang, Qiang Wang, Nan Li

{"title":"Enhancement of strength and thermal shock resistance of MgO-MgAl2O4 ceramic filters with microporous MgO powder: Effect of α-Al2O3 micro-powder content","authors":"Ying Liu, Wen Yan, Junjie Yan, Yajie Dai, Xiao Wang, Qiang Wang, Nan Li","doi":"10.1111/ijac.14921","DOIUrl":"https://doi.org/10.1111/ijac.14921","url":null,"abstract":"In this work, MgO-MgAl2O4 ceramic filters were fabricated from microporous MgO powder and α-Al2O3 micro-powder, in which microporous MgO powder was prepared using Mg(OH)2 as initial raw material. With the α-Al2O3 micro-powder content increased from 0 to 15 wt%, the tight packing and reaction sintering between MgO microparticles and Al2O3 microparticles promoted the formation and growth of magnesium aluminate spinel necks, reduced the apparent porosity of ceramic filter skeletons, decreased the pore size, and improved the strength of the filters. When the α-Al2O3 micro-powder content further raised to 20 wt%, the thermal mismatch between MgO microparticles and spinel microparticles caused a small amount of crack generation, which lowered the strength of the filter. Besides, after introducing the α-Al2O3 micro-powder, more spinel necks were produced due to a small amount of MgO solid dissolved in the spinel lattice during the thermal shock test, which enhanced the thermal shock resistance of the filters. When the α-Al2O3 micro-powder content was 15 wt%, the filter had excellent comprehensive performance, the bulk density and apparent porosity of the filter skeleton were 3.09 g/cm3 and 10.7%, and the compressive strength before and after thermal shock test was 3.48 and 3.70 MPa, respectively.","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762833","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