Ceramics International最新文献

{"title":"Enhanced thermoelectric properties of spark plasma sintered SiC with in-situ TiB2 network structures","authors":"Salih Cagri Ozer","doi":"10.1016/j.ceramint.2025.06.235","DOIUrl":"10.1016/j.ceramint.2025.06.235","url":null,"abstract":"<div><div>SiC-based composites with in-situ TiB₂ network structures were produced by coating mechanically alloyed B₄<span><span>C-TiC particle mixtures on SiC granules, and then utilizing the spark plasma sintering<span> process to obtain bulk composites with improved thermoelectric properties. A high amount of electrically conductive secondary phase introduction is generally necessary to improve the electrical transport properties of SiC, which causes adverse effects on the Seebeck coefficient and </span></span>thermal conductivity. Instead, producing a network structure of TiB</span>₂ on SiC, rather than a SiC-TiB₂<span> particulate composite<span> approach, was found to be effective in enhancing the electrical and thermal conductivity of SiC, with a minimum amount of secondary phase formation. The effects of different amounts of in-situ TiB</span></span>₂ network on the temperature-dependent electrical and thermal transport properties of SiC were analyzed. Increasing amounts of TiB₂ formation resulted in simultaneously increased electrical and decreased thermal conductivities by the conductive network and increased phonon scattering, respectively. Although the Seebeck coefficients of the final composites ultimately reduced due to the metallic nature of the in-situ TiB₂ network, optimizing the composition revealed a high thermoelectric performance at high temperatures. The dimensionless figure of merit value peaked at 2.5 vol% TiB₂ content as 8.5 × 10⁻³ at 923 K, which is approximately 210 % higher than monolithic SiC.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 40022-40031"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wettability and interfacial reaction of ZrO2 and Y2O3 doped Al2O3-based ceramic shells in K417G superalloy investment casting","authors":"Baohong Kou ,&nbsp;Wentao Zhou ,&nbsp;Yujie Lin ,&nbsp;Fei Han ,&nbsp;Jing Ouyang","doi":"10.1016/j.ceramint.2025.06.243","DOIUrl":"10.1016/j.ceramint.2025.06.243","url":null,"abstract":"<div><div>Interfacial reactions between K417G Ni-based superalloy and Al₂O₃<span>-based ceramic shells during investment casting negatively impact the surface quality of the resulting castings. To mitigate this issue, ZrO</span>₂ and Y₂O₃<span> were introduced to modify the microstructure, phase composition, and chemical properties of the shell surface. The effects of dopant<span> type and content (2–5–8 wt%) on interfacial reactions and wettability were systematically investigated using the sessile-drop method. The reaction products were characterized to understand the underlying mechanisms. The results show that increasing the ZrO</span></span>₂ content reduced the surface porosity and roughness of the shell. During sintering (950 °C, 2 h), the dopants reacted with SiO₂ to form silicates (Y₂SiO₅ and ZrSiO₄<span>), thereby enhancing the thermal stability of the shell. Under interfacial reaction conditions (1350 °C, 40 min), increasing the dopant content (2–5 wt%) significantly improved the alloy surface quality, reducing sand sticking defects, exposing more of the alloy matrix, and increasing the alloy-shell contact angle. However, at an 8 wt% dopant content, part of the dopant reacted with the Al</span>₂O₃ layer on the alloy surface, forming Al₂O₃·ZrO₂ and Al₂O₃·Y₂O₃<span> composite oxides. These reactions intensified localized interactions, resulting in the formation of ‘special reaction pits’, which ultimately reduced both the alloy surface quality and the alloy-shell contact angle. These findings suggest that the compositional design of Al</span>₂O₃-based ceramic shells promotes the formation of silicates, enhances thermal stability of the shell materials, thereby inhibiting alloy-shell interfacial reactions, and improving surface quality of the alloys.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 40087-40097"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of nano-quartz and the CaO/MgO molar ratio on the surface and mechanical properties of transparent glazes","authors":"J. Partyka ,&nbsp;Kronberg Thomas ,&nbsp;Pasiut Katarzyna ,&nbsp;Kaczmarczyk Karolina ,&nbsp;Kozień Dawid","doi":"10.1016/j.ceramint.2025.06.231","DOIUrl":"10.1016/j.ceramint.2025.06.231","url":null,"abstract":"<div><div>The aim of the presented work is to investigate the effect of nano-quartz glazes which replaced the traditional powdered Quartz. These materials differed mainly in the specific surface area SA = 325 m² g⁻¹ for nano-quartz and SA = 1.41 m² g⁻¹<span><span> for quartz powder. Transparent glazes differing in the molar ratio of CaO/MgO equal to: 1:0/1:1/0:1 were used for the study. The impact on transparency and other surface properties of the glazes were determined. Measurements of the transparency of ceramic glazes<span> were carried out using a new measurement technique. XRD and SEM analysis showed that all glazes were characterized by a high content (&gt;90 %) of an </span></span>amorphous<span> phase and all glazes can be considered completely transparent. Using nano-quartz in the composition significantly improved all determined mechanical properties (Vickers hardness, Young's module, and fracture toughness coefficient). In addition, the glaze surface was smoother, and the alkaline durability was improved when using nano-quartz. Adding MgO enhanced the crystallization in the glaze, improving the chemical and mechanical properties whereas the transparency of the glaze was maintained.</span></span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39983-39991"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring the electrical, dielectric and magnetic properties of SiO2 coated NiFe2O4 nanoparticles","authors":"Lovepreet Kaur Dhugga ,&nbsp;Navneet Kaur ,&nbsp;Nisha Gill ,&nbsp;Amit L. Sharma ,&nbsp;Dwijendra P. Singh","doi":"10.1016/j.ceramint.2025.06.208","DOIUrl":"10.1016/j.ceramint.2025.06.208","url":null,"abstract":"<div><div><span>Surface modified ferrite nanoparticles<span> with moderate magnetization and stable dielectric properties<span><span> over the wide frequency range could be of immense importance for various magneto electric applications. The present work is a directed effort, where the investigation of electrical, dielectric and </span>magnetic properties of NiFe</span></span></span>₂O₄ and SiO₂ coated NiFe₂O₄ nanoparticles have been carried out. SiO₂ coated NiFe₂O₄ nanoparticles have been synthesized by using sol-gel technique with two different solvents DI water and ethylene glycol and the corresponding samples are nominated as S-NFO1 and S-NFO2. Structurally and morphologically characterized NiFe₂O₄ and SiO₂ coated NiFe₂O₄ are subjected to magnetic and dielectric studies. S-NFO2 exhibits moderate saturation magnetization (∼21 emu/g), stable dielectric properties (dielectric constant ∼ 110 and decreased dielectric loss ∼ 0.2) over wide frequency range and highest non-linear coefficient ∼ 8.4. These modified properties are attributed to the modified microstructure caused by the induced interfacial forces due to the distribution of charged layer at NiFe₂O₄ nanoparticle and SiO₂ interface. The present study could be a strategic pathway for synthesizing the surface modified ferrite nanoparticle for the new age magneto electric applications.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39734-39743"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic recoverable cobalt ferrite nanophotocatalyst for Crystal Violet dye degradation","authors":"Yu Shi Lee,&nbsp;Kian Mun Lee,&nbsp;Boon Hoong Ong","doi":"10.1016/j.ceramint.2025.06.198","DOIUrl":"10.1016/j.ceramint.2025.06.198","url":null,"abstract":"<div><div>Water pollution caused by the release of organic dye waste has created 1.6 million litres of effluent daily, resulting in about 0.28 million tons of dye wastewater discharged annually. This study synthesized magnetic recoverable CoFe₂O₄<span> (MRCFO) nano photocatalysts<span><span> via a facile solvothermal route. XRD confirmed the formation of single-phase spinel structures of the synthesized MRCFO, except for commercial MRCFO, where the </span>hematite<span> phase was found. The EG-100 showed the narrowest size distribution due to adding ethylene glycol, which precisely controlled the nucleation and growth process. Moreover, EG-100 achieved the highest recoverability, owing to its high saturation magnetization (68.2 emu/g). The MRCFO was used to photodegrade Crystal Violet dye under UV-light irradiation. It was observed that EG-100 showed the highest degradation rate (2.21 x 10</span></span></span>⁻² min⁻¹<span><span><span>) and is about 2 times greater than the commercial MRCFO. The excellent photocatalytic activity of EG-100 was due to its slit-open </span>pore structure, which provides the greatest surface area for charge separation. EG-100 retained 53 % of its photoactivity after five cycles. Hence, the magnetic recoverability and chemical stability of MRCFO make it a potential photocatalyst for </span>dye degradation<span> and wastewater treatment.</span></span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39630-39638"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure and properties of high-strength HPHT sintered carbon-graphite blocks","authors":"Houzhen Chen ,&nbsp;Fuming Deng ,&nbsp;Xiaotian Xing ,&nbsp;Xiaozhou Chen ,&nbsp;Ziyi Liu ,&nbsp;Wenli Deng ,&nbsp;Junzhe Yu ,&nbsp;Can Li ,&nbsp;Zhangjie Ye ,&nbsp;Yonghai Lai ,&nbsp;Bao Lv","doi":"10.1016/j.ceramint.2025.06.197","DOIUrl":"10.1016/j.ceramint.2025.06.197","url":null,"abstract":"<div><div><span><span><span>In this study, the synergistic mechanism of pressure, temperature, and high-pressure high-temperature (HPHT) sintering time on the structural evolution and mechanical properties of carbon-graphite materials was systematically investigated through orthogonal </span>experimental Design. Combined with </span>XRD<span><span><span>, Raman, TEM, mechanical characterization, and finite element analysis<span>, it is found that: the pressure field inside the synthesis cavity exhibits relatively uniform distribution, and the temperature field<span> is symmetrically distributed with an axial or radial gradient, which is much lower than that required for traditional isostatic graphitization; the pressure-driven transformation of the </span></span></span>disordered structure in the samples to the ordered graphite lattice structure can occur rapidly, and the higher energy input can drive the rapid rearrangement of the carbon atom layers to optimize the intra-layer bonding and inter-layer stacking through the interplay of the high synthesis power and the short HPHT sintering time. The </span>microhardness<span><span> (1.77 GPa), compressive strength (192 MPa), and </span>flexural strength (87 MPa) were synergistically strengthened at 2.9 GPa/1300 °C/90min, showing a </span></span></span><em>d</em>_<em>002</em><span><span> spacing close to that of ideal single-crystal graphite. With further increase in pressure and time, the internal polycrystalline graphite structure was formed, and the </span>compressive strength<span> was significantly increased due to the reinforcement of interlayer interaction.</span></span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39620-39629"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced mechanical properties of YSZ ceramic microspheres via urea solution-modified external gelation process","authors":"Rui Xu ,&nbsp;Shijiao Zhao ,&nbsp;Zibing Hou","doi":"10.1016/j.ceramint.2025.06.199","DOIUrl":"10.1016/j.ceramint.2025.06.199","url":null,"abstract":"<div><div><span><span>Yttria-stabilized zirconia (YSZ) ceramic microspheres are widely used in catalysts, biomaterials, and nuclear applications. However, their preparation faces challenges such as localized precipitation and complex additive compositions. This study proposes a simplified external </span>gelation<span> process using urea solution to replace solid urea, addressing these issues. The effects of urea content and zirconium sources (ZrOCl</span></span>₂ vs. ZrO(NO₃)₂<span><span>) on colloidal particle size, broth pH, and mechanical properties were systematically investigated. </span>Electron cloud density maps of colloid particles were resolved using small-angle X-ray scattering and the Denss database. Compared to solid urea, the urea solution prolonged hydrolysis, enabling uniform pH adjustment and rapid sol-to-gel transition. The optimal formulation (ZrOCl</span>₂<span><span><span> with n(urea/Zr) = 6:1) prepared crack-free YSZ ceramic microspheres with near-perfect sphericity (1.01 ± 0.01), an exceptional average hardness (19.0 GPa), and an average </span>crushing strength of 251 N-11 times higher than the microspheres prepared by solid urea (23 N). The urea solution-modified external </span>gelation process achieves an 11 % hardness increase over prior studies and a 73 % crushing strength improvement over commercial YSZ ceramic microspheres, offering a scalable approach for enhancing mechanical properties of YSZ ceramic microspheres.</span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39639-39647"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"LiMgPO4:Tb,Sm,B - A highly sensitive phosphor for radiation dosimetry","authors":"Li Fu ,&nbsp;Kaiyong Tang ,&nbsp;Hui Cui ,&nbsp;Zungang Wang ,&nbsp;Zhiyuan Li ,&nbsp;Haijun Fan ,&nbsp;Yan Zeng ,&nbsp;Siyuan Zhang ,&nbsp;Mo Zhou","doi":"10.1016/j.ceramint.2025.06.212","DOIUrl":"10.1016/j.ceramint.2025.06.212","url":null,"abstract":"<div><div>A LiMgPO<strong>₄<span>:Tb,Sm,B-based optically stimulated luminescent (OSL) phosphor with ultrahigh sensitivity was developed for radiation dosimetry applications.</span></strong><span> The material was synthesized through solid-state reaction and its structure was characterized by X-ray diffraction and scanning electron microscopy analyses. </span><strong><span>This study presents the first systematic investigation of both thermoluminescence (TL) and OSL behaviors in the LiMgPO</span>₄:Tb,Sm,B system,</strong> with detailed spectral analysis identifying Tb³⁺ as the dominant luminescence center characterized by a prominent emission peak at 552 nm. The phosphor exhibits exceptional OSL performance, <strong>demonstrating 10-fold higher sensitivity compared to the benchmark</strong> Al₂O₃:C <strong>material</strong> within a broad linear dose range (0.1 mGy - 20 Gy). The energy response spans from 33 keV to 1.25 MeV. The material maintains excellent reproducibility (RSD &lt;1.55 %) and <strong>with a record-low detection limit of 0.7 μGy. These findings establish LiMgPO₄:Tb,Sm,B as a superior alternative to conventional</strong> Al₂O₃:C, particularly for personnel monitoring and environmental radiation surveillance applications.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39772-39781"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanically induced surface damage and resulting thermal instability in polycrystalline 0.94Na1/2Bi1/2TiO3-0.06BaTiO3","authors":"Angélica María Benítez-Castro ,&nbsp;Neamul Hayet Khansur ,&nbsp;Alexandra Castro-Hidalgo ,&nbsp;Víctor Dahián Saldarriaga-Montoya ,&nbsp;Beatriz Cruz-Muñoz ,&nbsp;Juan Muñoz-Saldaña ,&nbsp;Kyle G. Webber","doi":"10.1016/j.ceramint.2025.06.175","DOIUrl":"10.1016/j.ceramint.2025.06.175","url":null,"abstract":"<div><div><span>Surface layers exhibiting distinct physical properties compared to the bulk have been observed in ferroelectric materials, e.g., BiFeO</span>₃, SrTiO₃, Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃, and more recently, lead-free 0.94Na_1/2Bi_1/2TiO₃-0.06BaTiO₃<span><span><span> (NBT-6BT). However, the underlying origin of these surface layers, or “skins”, remains unclear. In this work, the appearance of a distorted skin in relaxor ferroelectric NBT-6BT was investigated, after the removal of the sinter surface during </span>grinding procedures. A sequence of different surface finishing media with decreasing particle size (15 μm </span>silicon carbide<span> abrasive paper, 9, 6, 3, and 1 μm diamond polishing suspensions, and finally 0.04 μm oxide<span> polishing suspension) was used to investigate the influence of mechanical damage on ferroelectricity, thermal and chemical stability, and mechanical field modulation of the crystal structure at the surface. Laboratory X-ray diffractometry, using both Bragg-Brentano and grazing incidence geometries, revealed the emergence of phases with distorted lattice structure far from the expected pseudo-cubic symmetry. In addition, the phase degradation of NBT-6BT into the metastable Bi</span></span></span>₂Ti₂O₇-like pyrochlore phase was observed due to a likely sharp increase in the local temperature in the contact points between the grinding particles and the ceramic sample. These structural findings are also linked to the observed increased phase instabilities in ceramics with severe mechanical damage. This enables the formation of a Ba-rich secondary phase at the surface upon thermal treatments at 850 °C for 10 h under different atmospheres, such as oxygen and nitrogen.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39411-39424"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the configuration of SiC slurry for grouting molding and the performance of billet","authors":"Shouliang Bie ,&nbsp;Lintao Liu ,&nbsp;Jianqiang Bi ,&nbsp;Guandong Liang ,&nbsp;Shuyong Liang ,&nbsp;Jia Li ,&nbsp;Hongyu Gong ,&nbsp;Weili Wang ,&nbsp;Zhen Liang ,&nbsp;Hai Su","doi":"10.1016/j.ceramint.2025.06.176","DOIUrl":"10.1016/j.ceramint.2025.06.176","url":null,"abstract":"<div><div><span>Silicon carbide<span><span><span> (SiC) ceramics demonstrate outstanding characteristics, encompassing a remarkably high melting point, exceptional hardness, superior wear resistance, excellent </span>thermal shock resistance, </span>high thermal conductivity<span> and robust chemical stability. These properties span mechanical durability, thermal performance and environmental resilience, making SiC ceramics ideal for many applications such as semiconductors, high-temperature environments, heating and heat exchange systems, military, nuclear industries and photovoltaics<span><span>. However, the extreme hardness of SiC ceramics poses significant machining challenges in post-processing, which has consequently led to slip casting attracting substantial research interest, particularly due to its capacity for shaping intricate components without requiring mechanical processing. In this paper, the surface of SiC particles was modified by using </span>aluminum nitrate nonahydrate (Al(NO</span></span></span></span>₃)₃·9H₂<span>O) and sodium humate (C</span>₉H₈Na₂O₄) as modifiers, improving the dispersion and stability of SiC particles in the slurry. After surface modification with 0.4 wt% Al(NO₃)₃·9H₂O and 0.8 wt% C₉H₈Na₂O₄<span><span>, the angle of repose of SiC powder achieved minimum angle of repose at 38.1°. The Zeta potential of the SiC powder decreased from −27.83 mV to −53.9 mV after modification. The </span>viscosity<span><span> of the modified SiC slurry with a solid content of 50 vol% was 0.9272 Pa∙s. After adding 1.5 ml of water-borne epoxy resin (WER), the </span>flexural strength of the dried green body could be increased to 14.56 MPa. At the same time, the apparent density and water content are 2.14 g/cm</span></span>³<span> and 0.02 %, which fully meet the application for the reaction-bonded SiC ceramics. Silicon carbide ceramics which were fabricated via reactive sintering at 1700 °C for 2.5h under vacuum atmosphere, demonstrated a mean three-point flexural strength of 360 MPa.</span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39425-39431"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}