International Journal of Applied Ceramic Technology最新文献

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Zirconia spacer electrodes improve microstructural uniformity of flash sintered zirconia ceramics 氧化锆间隔电极改善了闪烧氧化锆陶瓷的微观结构均匀性
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2025-01-06 DOI: 10.1111/ijac.15037
Vladimír Prajzler, Richard I. Todd
{"title":"Zirconia spacer electrodes improve microstructural uniformity of flash sintered zirconia ceramics","authors":"Vladimír Prajzler,&nbsp;Richard I. Todd","doi":"10.1111/ijac.15037","DOIUrl":"https://doi.org/10.1111/ijac.15037","url":null,"abstract":"<p>The sample-electrode contact often represents the most problematic part of the flash sintering circuit. We demonstrate that adding 3 mol% yttria-stabilized zirconia (3YSZ) spacer electrodes between a 3YSZ powder compact and steel electrodes positively impacts the final density and microstructure in AC flash sintering. The 3YSZ spacer electrodes, with intrinsically low thermal conductivity, were also heated by Joule heating alongside the 3YSZ sample, reducing the temperature gradient at the specimen-electrode interface and limiting heat loss from the specimen. A reference 3YSZ sample, which was sintered with stainless steel electrodes only, reached 98.2% of relative density with a notable grain size difference between the central (∼290 nm) and near-electrode parts (∼160 nm). The addition of 3YSZ spacer electrodes improved the final density to 98.9 % and reduced the grain size difference between the central (∼300 nm) and near-electrode parts (∼220 nm) almost by half compared to the reference sample.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770499","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 properties of MAO/PCL composite coating on ZK60 magnesium alloy ZK60镁合金MAO/PCL复合涂层性能研究
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2025-01-05 DOI: 10.1111/ijac.15010
Junwei Yang, Xiaowen Chen, Bin Luo, Song Tang, Wanlin Xie, Defen Zhang
{"title":"Study on properties of MAO/PCL composite coating on ZK60 magnesium alloy","authors":"Junwei Yang,&nbsp;Xiaowen Chen,&nbsp;Bin Luo,&nbsp;Song Tang,&nbsp;Wanlin Xie,&nbsp;Defen Zhang","doi":"10.1111/ijac.15010","DOIUrl":"https://doi.org/10.1111/ijac.15010","url":null,"abstract":"<p>Microarc oxidation technology enhances magnesium alloy surfaces but faces cracks and micropores. Adding C<sub>6</sub>H<sub>10</sub>CaO<sub>6</sub> and Ca(OH)<sub>2</sub> only partially solves this. This study used immersion pulling to create a microarc oxidation/polycaprolactone composite film, examining its properties and degradation. The film transitioned from smooth to porous with calcium and phosphorus deposits. After 56 days, the Ca/P ratio approached the ideal 1.67, matching the biological environment. The polycaprolactone layer thinned in corrosive media, with hydrogen bubbles and film detachment. Surface sediments included Ca<sub>2</sub>P<sub>2</sub>O<sub>7</sub> and hydroxyapatite (HA), important for biocompatibility. Cell experiments showed superior adhesion and proliferation on the composite film compared to controls. A degradation model revealed the film's protective role during three stages. In summary, the composite film exhibits excellent surface morphology and composition, promotes cell growth, and protects the magnesium alloy substrate during degradation.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770209","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
On improved inorganic gas-sensing characteristics of microwave-treated tungsten oxide quantum dots at room temperature 微波处理氧化钨量子点室温下无机气敏特性的改进
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2025-01-01 DOI: 10.1111/ijac.15033
M. Salot, K. Santhy, V. R. Naganaboina, S. G. Singh, A. K. Pramanick, D. Mandal, G. Avasthi, S. K. Chaudhury
{"title":"On improved inorganic gas-sensing characteristics of microwave-treated tungsten oxide quantum dots at room temperature","authors":"M. Salot,&nbsp;K. Santhy,&nbsp;V. R. Naganaboina,&nbsp;S. G. Singh,&nbsp;A. K. Pramanick,&nbsp;D. Mandal,&nbsp;G. Avasthi,&nbsp;S. K. Chaudhury","doi":"10.1111/ijac.15033","DOIUrl":"https://doi.org/10.1111/ijac.15033","url":null,"abstract":"<p>Tungsten oxide (WO<sub>3</sub>) based metal oxide semiconductor material has been conventionally used for sensing inorganic gases at elevated temperatures. However, in this study, the gas sensing performance of tungsten oxide-based sensors is evaluated at room temperature. In this study, WO<sub>3</sub> quantum dots (QDs) are synthesized via the electrochemical method, followed by a microwave treatment to dehydrate them. The newly developed process is relatively less expensive and offers the flexibility to alter the structure in terms of phase, size, shape, and vacancy concentration. It is observed that electrochemical process parameters play an important role in phase evolution and control the oxygen vacancy concentration in the powder, which are essential for enhancing its gas sensing characteristics. Results showed an enhanced gas-sensing ability of WO<sub>3</sub> QDs at room temperature toward inorganic gases, such as CO, NO<sub>2</sub>, NH<sub>3</sub>, and H<sub>2</sub> when subjected to microwave treatment. The enhanced gas-sensing performance of microwave-treated WO<sub>3</sub> QDs is attributed to its smaller size and high oxygen vacancy concentration. The minimum limit of detection values for CO, NO<sub>2</sub>, NH<sub>3</sub>, and H<sub>2</sub> at room temperature using microwave-treated hydrated tungsten oxide QDs were 4.60, 1.5, 0.35, and 10.25 ppm, respectively.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770396","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 workability of the castables bonded with hydrated magnesium carboxylate–organic acid 水合羧酸镁-有机酸粘结浇注料的和易性
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-31 DOI: 10.1111/ijac.15035
Jianjun Chen, Guoqing Xiao, Donghai Ding, Qingfeng Wang, Ming Liu, Chaofan Yin, Junrui Yang, Xue Li, Wei Luo, Wenwen Tang, Tengfei Li
{"title":"The workability of the castables bonded with hydrated magnesium carboxylate–organic acid","authors":"Jianjun Chen,&nbsp;Guoqing Xiao,&nbsp;Donghai Ding,&nbsp;Qingfeng Wang,&nbsp;Ming Liu,&nbsp;Chaofan Yin,&nbsp;Junrui Yang,&nbsp;Xue Li,&nbsp;Wei Luo,&nbsp;Wenwen Tang,&nbsp;Tengfei Li","doi":"10.1111/ijac.15035","DOIUrl":"https://doi.org/10.1111/ijac.15035","url":null,"abstract":"<p>This study modifies the hydration process of hydrated magnesium carboxylate (HMC) by organic acids to improve the workability of HMC-bonded castables (HMCC), while comprehensively analyzing the effects of organic acids on the mechanical properties and thermal shock resistance of HMCC. Results demonstrate that lactic acid significantly increases the setting time and rheology of HMCC by 738% and 217.8%, respectively. This is due to lactic acid inhibiting HMC ionization and delaying hydration, as evidenced by hydration kinetics experiments. Furthermore, lactic acid could also reduce the degree of polymerization of HMC hydration products. Notably, lactic acid increases the cold modulus of rupture by 593.7%, 100%, and 95.7% at 500°C, 800°C, and 1100°C, respectively. This performance improvement is attributed to lactic acid's promotion of the sintering process of HMCC, possibly due to its effect on improving castable uniformity. However, lactic acid results in an 18.1% reduction in the green body strength, potentially due to the weakened three-dimensional network structure of HMC hydration products. Additionally, lactic acid increases the residual strength ratio of HMCC by 4.3% and enhances crack propagation resistance (<i>R</i>‴) by 45%. These improvements result from an optimized microstructure, characterized by smaller, more uniformly distributed particles with regular shapes and tighter interparticle connections.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770604","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
Ceramics as alternative solutions for the geological disposal of high-level radioactive waste: Andra's R&D program 陶瓷作为高放射性废物地质处置的替代解决方案:安德拉的研发计划
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-30 DOI: 10.1111/ijac.15022
Aurélien Debelle, Clémence Besnard, Stéphanie Miot, Emilie Perret, Samuel Couillaud, Patrick Ganster, Fabrice Rossignol, Guillaume German, Bénédicte Reine, Antoine Pasteau, Xavier Bourbon, Olivier Perrochon, Frédéric Bumbieler
{"title":"Ceramics as alternative solutions for the geological disposal of high-level radioactive waste: Andra's R&D program","authors":"Aurélien Debelle,&nbsp;Clémence Besnard,&nbsp;Stéphanie Miot,&nbsp;Emilie Perret,&nbsp;Samuel Couillaud,&nbsp;Patrick Ganster,&nbsp;Fabrice Rossignol,&nbsp;Guillaume German,&nbsp;Bénédicte Reine,&nbsp;Antoine Pasteau,&nbsp;Xavier Bourbon,&nbsp;Olivier Perrochon,&nbsp;Frédéric Bumbieler","doi":"10.1111/ijac.15022","DOIUrl":"https://doi.org/10.1111/ijac.15022","url":null,"abstract":"<p>The concept of a safe geological disposal facility designed to manage radioactive waste is on the basis of the multibarrier system comprising both the host rock and various engineered barriers. The robustness of the latter depends directly on the building materials used. With specific regard to high-level waste, Andra's Cigéo project includes, among others, two barriers, i.e., the disposal container and the microtunnel liner. A scenario was built and shows that safety requirements are satisfied using of low carbon steel for these two components. However, to further increase safety margins and simplify the operation of the facility, Andra decided to study other materials less prone to corrosion. Consequently, Andra launched an R&amp;D program to assess the technical feasibility of a high-level waste container and a microtunnel liner made from ceramics, with the technical characteristics needed to meet safety requirements. This document describes the current situation for these activities and suggests ways this objective can be met.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770618","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
Dielectric, impedance, and energy storage properties of Bi(Mg0.5Sn0.5)O3 modified Bi0.5Na0.5TiO3 based ceramics Bi(Mg0.5Sn0.5)O3改性Bi0.5Na0.5TiO3基陶瓷的介电、阻抗和储能性能
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-30 DOI: 10.1111/ijac.15030
Sami Ullah Khan, Abdul Manan, Atta Ullah, Ibrahim Qazi, Maqbool Ur Rehman, Murad Ali Khan, Arbab Safeer Ahmad, Raz Muhammad, Yaseen Iqbal
{"title":"Dielectric, impedance, and energy storage properties of Bi(Mg0.5Sn0.5)O3 modified Bi0.5Na0.5TiO3 based ceramics","authors":"Sami Ullah Khan,&nbsp;Abdul Manan,&nbsp;Atta Ullah,&nbsp;Ibrahim Qazi,&nbsp;Maqbool Ur Rehman,&nbsp;Murad Ali Khan,&nbsp;Arbab Safeer Ahmad,&nbsp;Raz Muhammad,&nbsp;Yaseen Iqbal","doi":"10.1111/ijac.15030","DOIUrl":"https://doi.org/10.1111/ijac.15030","url":null,"abstract":"<p>(1–<i>x</i>)(0.60eBi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>–0.35SrTiO<sub>3</sub>–0.05BiFeO<sub>3</sub>)–<i>x</i>Bi(Mg<sub>0.5</sub>Sn<sub>0.5</sub>)O<sub>3</sub> (<i>x</i> = 0.00, 0.05, 0.10, 0.15, and 0.20) ceramics processed via a solid-state sintering route were investigated. Analysis of XRD data revealed the formation of the parent phase along with a minor secondary phase for each ceramic composition. The doping of BMS led to a decrease in the dielectric loss (tanδ ≤3%) for the composition with <i>x</i> = 0.10 in the temperature range 25°C–400°C. The observed small grain size of the sample with <i>x</i> = 0.10 may be responsible for its lower electrical conductivity which enhanced the energy storage performance. Furthermore, the overall resistance of all the compositions decreased with an increase in temperature which indicated a semiconducting behavior. For the sample with <i>x</i> = 0.10, enhancement in the overall properties was observed, i.e., stored energy density (W<sub>s</sub>) ∼2.67 J/cm<sup>3</sup>, recoverable energy density (W<sub>rec</sub>) ∼1.691 J/cm<sup>3</sup> and efficiency (η) ∼63% at a dielectric breakdown strength (BDS) ∼200 kV/cm. This composition may be suitable as an energy storage capacitor for pulsed power applications.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ijac.15030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770640","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
MoS2@porous biochar derived from rape pollen as anode material for lithium-ion batteries MoS2@porous从油菜花粉中提取的生物炭作为锂离子电池的负极材料
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-30 DOI: 10.1111/ijac.15027
Yifei Wang, Chunmei Wang, Shengqiang Wang, Huakang Zhang, Zhigang Liu, Jing Wang, Lirong Yang
{"title":"MoS2@porous biochar derived from rape pollen as anode material for lithium-ion batteries","authors":"Yifei Wang,&nbsp;Chunmei Wang,&nbsp;Shengqiang Wang,&nbsp;Huakang Zhang,&nbsp;Zhigang Liu,&nbsp;Jing Wang,&nbsp;Lirong Yang","doi":"10.1111/ijac.15027","DOIUrl":"https://doi.org/10.1111/ijac.15027","url":null,"abstract":"<p>Preparation of porous carbon from natural biomass offers attractive features to facilitate the specific capacity and promote the rate capability of lithium-ion battery (LIB). Herein, the hollow mesh porous rape pollen carbon (RPC) microsphere derived from treated RP (TRP) was utilized as a skeleton to load MoS<sub>2</sub> nanoparticles. The MoS<sub>2</sub>@porous biochar-derived RP (MoS<sub>2</sub>@RPC) anode materials were obtained by the hydrothermal–pyrolysis route. Attributing to the synergistic effect of spherical, hollow, and mesh porous carbon skeletons, larger specific surface areas, evenly distributed MoS<sub>2</sub> nanoparticles, and an appropriate amount of TRP, the MoS<sub>2</sub>@RPC-1.0 (TRP amount of 1.0 g) anode material reveals exceptional rate capability and cycling stability. A high specific capacity of ∼800 mAh g<sup>−1</sup> at 100 mA g<sup>−1</sup> is observed after 100 cycles, and that of ∼600 mAh g<sup>−1</sup> at 500 mA g<sup>−1</sup> is also obtained after 500 cycles. In conclusion, the MoS<sub>2</sub>@porous biochar composite is expected to become one of the most promising anode materials for LIBs.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770641","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 of cordierite-based low-expansion porcelain tiles with application potential in an underfloor heating system 具有地暖应用潜力的堇青石基低膨胀瓷砖的研制
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-27 DOI: 10.1111/ijac.15031
Ting Luo, Ping Li, Weixia Dong, Qiang Zeng, Xiaoling Yu, Xingyong Gu, Gang Dong
{"title":"Development of cordierite-based low-expansion porcelain tiles with application potential in an underfloor heating system","authors":"Ting Luo,&nbsp;Ping Li,&nbsp;Weixia Dong,&nbsp;Qiang Zeng,&nbsp;Xiaoling Yu,&nbsp;Xingyong Gu,&nbsp;Gang Dong","doi":"10.1111/ijac.15031","DOIUrl":"https://doi.org/10.1111/ijac.15031","url":null,"abstract":"<p>The high coefficients of thermal expansion (CTEs; <i>α</i>) of common porcelain tiles result in deformation, cracking and even breakage after prolonged utilization in an underfloor heating system. Cordierite-based porcelain tiles with low <i>α</i> values have good application potential in underfloor heating systems. Herein, environmentally friendly and low-cost cordierite-based porcelain tiles made with desert sand were presented. The bulk density, linear shrinkage, water absorption, CTE, and modulus of rupture were determined to investigate the sintering stage of this desert sand-based low-expansion porcelain tiles. Powder X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy analyses were used to characterize the phase changes and microstructures of the materials. The results revealed that mass ratio of SiO<sub>2</sub> to Al<sub>2</sub>O<sub>3</sub> (<i>m</i>[SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub>]), mass ratio of MgO to Al<sub>2</sub>O<sub>3</sub> (<i>m</i>[MgO/Al<sub>2</sub>O<sub>3</sub>]), and sintering temperature jointly affected the CTEs of the porcelain tiles. Moreover, the sintering temperature significantly impacted the quantities and morphologies of the cordierite crystals. An increase in the number of columnar-like cordierite crystals during production resulted in a decreased CTE. The results of this study present an effective technique for preparing low-CTE porcelain tiles from natural waste materials. These desert sand-based tiles could be widely applied in underfloor heating systems.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770307","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
Recycling boron carbide dust waste for preparing high-performance ceramics by hot-pressed sintering 利用碳化硼粉尘废渣热压烧结制备高性能陶瓷
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-26 DOI: 10.1111/ijac.15028
Shuai Wang, Haojie Wei, Yang Chen, Pengfei Xing, Yanxin Zhuang
{"title":"Recycling boron carbide dust waste for preparing high-performance ceramics by hot-pressed sintering","authors":"Shuai Wang,&nbsp;Haojie Wei,&nbsp;Yang Chen,&nbsp;Pengfei Xing,&nbsp;Yanxin Zhuang","doi":"10.1111/ijac.15028","DOIUrl":"https://doi.org/10.1111/ijac.15028","url":null,"abstract":"<p>B<sub>4</sub>C dust waste causes environmental pollution and is difficult to be recycled. This paper proposes a method of recycling B<sub>4</sub>C dust waste to fabricate high-performance ceramics via the processes of raw material treatment and hot pressing. The characteristics of B<sub>4</sub>C dust waste are analyzed and the existing states of the impurities are detected. Dust wastes, removed different impurities via different processes, are simultaneously hot pressed at 2050°C for 15 min under 20 MPa pressure, and the microstructure and mechanical property of the fabricated ceramics are detected and compared. Results indicate that the particle size of dust waste is fine (2.7 µm), and the impurities B<sub>2</sub>O<sub>3</sub>/H<sub>3</sub>BO<sub>3</sub>, Fe, and BN exist in dust waste. The mechanical properties of the ceramics fabricated with dust wastes treated via different methods are similar or even superior to those of the commercial ceramics, and among them, the ceramics fabricated with the dust waste removed oxygen with ethanol show the excellent comprehensive performance, of which the hardness, flexural strength, and fractural toughness reach 30.78 GPa, 410 MPa, 4.3 MPa m<sup>1/2</sup>, respectively. Removing oxygen of dust waste can effectively enhance the densification, and the impurity Fe can also improve the densification owing to the formed low-melting-point FeB from the reaction between Fe and boron carbide in the dust waste. The pullout of FeB, BN particles, and the loosening area induced by residual stress of FeB contributes to the promotion of fracture toughness. This paper proves the feasibility of preparing high-performance ceramics with B<sub>4</sub>C dust waste and lays a theoretical and practical foundation for the recycling and value-added reuse of B<sub>4</sub>C dust waste, and for the low-cost preparing of high-performance B<sub>4</sub>C ceramics.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770633","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
Synergistically reinforced boron carbide ceramics by introduction of Fe and BN 引入铁和氮化硼协同增强碳化硼陶瓷
IF 1.8 4区 材料科学
International Journal of Applied Ceramic Technology Pub Date : 2024-12-26 DOI: 10.1111/ijac.15029
Shuai Wang, Wenxuan Du, Pengfei Xing, Yanxin Zhuang
{"title":"Synergistically reinforced boron carbide ceramics by introduction of Fe and BN","authors":"Shuai Wang,&nbsp;Wenxuan Du,&nbsp;Pengfei Xing,&nbsp;Yanxin Zhuang","doi":"10.1111/ijac.15029","DOIUrl":"https://doi.org/10.1111/ijac.15029","url":null,"abstract":"<p>Boron carbide (B<sub>4</sub>C)-FeB ceramics and B<sub>4</sub>C-FeB-BN ceramics are prepared via hot pressing with B<sub>4</sub>C plus different contents of iron (Fe) and B<sub>4</sub>C plus 5 wt% Fe and different contents of boron nitride (BN), respectively. The phase composition, microstructure, and mechanical properties of the prepared ceramics are studied in detail. The synergistic effect of Fe and BN on hot-pressed B<sub>4</sub>C ceramics is discussed. Results indicate that Fe can react with B<sub>4</sub>C to form FeB, and enhance the densification and mechanical property of B<sub>4</sub>C ceramics. 5 wt% Fe is the optimal addition amount. Fe and BN can synergistically reinforce B<sub>4</sub>C ceramics. The ceramics fabricated with B<sub>4</sub>C-5 wt% Fe-4 wt% BN have the optimal comprehensive performance, of which the relative density, hardness, flexural strength, and fracture toughness reach 98.5%, 32.74 GPa, 668.92 MPa, and 4.09 MPa·m<sup>1/2</sup>, respectively, higher than those of the ceramics fabricated with B<sub>4</sub>C or with B<sub>4</sub>C plus Fe. The liquid formed by Fe during sintering enhances the dispersion of BN, which is beneficial to realizing the function of pinning grain boundary and pulling out. The toughening phenomena include intergranular and transgranular fracture, particle pulling out, and bridging.</p>","PeriodicalId":13903,"journal":{"name":"International Journal of Applied Ceramic Technology","volume":"22 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770635","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
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