Ceramics International最新文献

{"title":"Induction of magnetodielectric coupling in multiferroic lanthanum ferrite by cobalt doping","authors":"X.J. Téllez-Tovar ,&nbsp;J.A. Félix-Bernabe ,&nbsp;F. Sánchez-De Jesús ,&nbsp;C.A. Cortés-Escobedo ,&nbsp;A.M. Bolarín-Miró","doi":"10.1016/j.ceramint.2025.06.225","DOIUrl":"10.1016/j.ceramint.2025.06.225","url":null,"abstract":"<div><div><span>This research focuses on studying the magnetodielectric coupling at room temperature in lanthanum<span><span> ferrite induced by cobalt substituting iron sites. The study involved varying cobalt content from 0 to 0.1 mol, with samples synthesized via high-energy ball milling. The evolution of crystal structure, dielectric, and </span>magnetic properties<span> was analyzed. X-ray diffraction (XRD) and Rietveld refinement confirmed the orthorhombic single-phase structure with the </span></span></span><em>Pnma</em><span><span><span> space group in the doped lanthanum ferrite. Vibrating-sample magnetometry results demonstrated that </span>cobalt doping<span> alters the antiferromagnetic order of lanthanum ferrite, inducing ferromagnetism, with a maximum specific magnetization of 1.25 emu/g observed at 0.075 mol cobalt content. Scanning electron microscopy (SEM) analysis revealed an increase in grain size with higher cobalt content, which impacts the material's electrical and </span></span>dielectric properties. The doped ferrites exhibited lower relative permittivity values compared to pure LaFeO</span>₃<span>. Additionally, the presence of cobalt reduced the dielectric dissipation factor, attributed to minor crystal structure distortions. Notably, magnetodielectric coupling was observed in these multiferroic materials for the first time, evidenced by changes in relative permittivity under varying applied fields and frequencies. The highest magnetodielectric coupling was achieved at 0.025 mol cobalt doping, with relative permittivity values ranging from 70 to 26 across frequencies from 50 to 1000 Hz. These findings confirm that cobalt-doped lanthanum ferrites exhibit magnetodielectric coupling at room temperature, suggesting potential for expanded technological applications.</span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39920-39929"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922933","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":"Tuning magnetic storage properties through neodymium substitution in CoCr2O4 nanostructures: A chemical synthesis approach and DFT calculations","authors":"Mansour Mohamed ,&nbsp;Li Zhengyou ,&nbsp;Amel Gacem ,&nbsp;Krishna Kumar Yadav ,&nbsp;Ahmed M. Fallatah ,&nbsp;Fahad M. Aldosari ,&nbsp;Ghadah Shukri Albakri ,&nbsp;Javed Khan Bhutto ,&nbsp;Nagaraj Basavegowda ,&nbsp;Muhammad A. Abo El-Khair ,&nbsp;Brij Bhushan ,&nbsp;Marisa C. Oliveira ,&nbsp;Elson Longo ,&nbsp;Renan A.P. Ribeiro","doi":"10.1016/j.ceramint.2025.06.233","DOIUrl":"10.1016/j.ceramint.2025.06.233","url":null,"abstract":"<div><div>Neodymium-doped CoCr₂O₄<span> nanoparticles<span><span><span><span> were synthesized via a chemical synthesis route to investigate their structural, microstructural, compositional, and magnetic properties. X-ray diffraction (XRD) analysis confirmed the formation of a single-phase cubic spinel structure with high </span>crystallinity and slight lattice expansion due to neodymium doping. Scanning Electron Microscopy (SEM) revealed a quasi-spherical morphology with uniform particle distribution, while Energy Dispersive X-ray Analysis (EDAX) confirmed the </span>elemental composition, showing the successful incorporation of neodymium without impurities. </span>Fourier Transform<span> Infrared (FTIR) spectroscopy highlighted characteristic metal-oxygen vibrational bands, with shifts in peak positions reflecting changes in the local bonding environment due to neodymium substitution. Magnetic studies, including field-cooled (FC) and zero-field-cooled (ZFC) measurements, indicated modifications in Curie temperature and magnetic transitions, with doped samples exhibiting enhanced superparamagnetic behavior. DFT calculations were conducted to complement the overall discussion, proving that Nd</span></span></span>³⁺ (4f³<span>) orbitals play a fundamental role on controlling the structural, electronic and magnetic properties of spinel chromites. This study is novel in its combined use of experimental characterization and first-principles DFT calculations to probe the role of Nd</span>³⁺<span> doping in tuning the magnetic and structural behavior of CoCr</span>₂O₄<span>. The integration of low-temperature synthesis with theoretical modeling provides new insights into rare-earth-induced modulation of exchange interactions in spinel chromites<span>, highlighting potential applications in magnetic storage and spintronic devices.</span></span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 40001-40011"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922796","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":"Constructing a robust mesoporous S-scheme heterojunction AgVO3/ZnWO4 for visible-light-driven oxidation of atrazine","authors":"Wejdan T. Alsaggaf,&nbsp;Reda M. Mohamed","doi":"10.1016/j.ceramint.2025.06.252","DOIUrl":"10.1016/j.ceramint.2025.06.252","url":null,"abstract":"<div><div><span><span>Effectively eliminating atrazine (Atr), a typical agricultural herbicide that possesses severe toxicological effects, is highly challenging. In this study, effective and novel </span>mesoporous<span> step (S)-type heterostructure AgVO</span></span>₃/ZnWO₄<span><span> (AV/ZW) photocatalysts<span> were fabricated to boost the photocatalytic decomposition (PCD) of Atr under </span></span>visible light illumination. Mesoporous ZnWO</span>₄<span><span> (ZW) was manufactured hydrothermally with the assistance of poly(vinyl alcohol) (PVA) and subsequently modified with different concentrations of AV (3–12 wt%) through impregnation and calcination<span> procedures. Various analytical instruments were utilized to underscore the successful synthesis of the desired photocatalysts. The examination tools demonstrated that AV nanoparticles<span> (NPs) and ZW were closely coupled, forming AV/ZW heterojunctions. The construction of this heterojunction displayed a crucial role in synergistically promoting the light absorption capability, as well as boosting the spatial separation for light-induced charge carriers and optimizing the redox capacity, thereby drastically boosting the PCD of Atr. Particularly, the absorption edge was significantly improved from 388.27 nm (in </span></span></span>pure<span> ZW) to 528.51 nm following the incorporation 6 wt% AV NPs, and the band gap was reduced from 3.17 eV to 2.36 eV. Moreover, the light-induced charge carrier separation was considerably promoted with the AV insertion. Hence, the AV/ZW composites exhibited superior performances than pure ZW towards photodecomposition of Atr. Specifically, the optimal photocatalyst, 6 % AV/ZW, with an optimal dose (1.6 g/L) fully eliminated Atr (100 %) within only 40 min, with a reaction constant, K</span></span>_a, of 0.0608 min⁻¹ and reaction rate, R_r, of 14.09 μM min⁻¹<span>, outperformed those attained over the pure AV and ZW by about 5.2- and 44-folds, separately. Also, the 6 % AV/ZW demonstrated superb stability within five consecutive runs. The findings of this study provide a pragmatic benchmark for the development of innovative heterostructure<span> photocatalysts aimed at ecological cleaning and water purification.</span></span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 40193-40203"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922829","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":"Low-temperature underwater plasma as a tool for creating multifunctional materials based on tin dioxide","authors":"Alexander Agafonov,&nbsp;Anastasia Evdokimova,&nbsp;Anton Kraev,&nbsp;Valeria Shibaeva,&nbsp;Nikolay Sirotkin,&nbsp;Valery Titov,&nbsp;Anna Khlyustova","doi":"10.1016/j.ceramint.2025.06.207","DOIUrl":"10.1016/j.ceramint.2025.06.207","url":null,"abstract":"<div><div><span>A multifunctional material based on tin dioxide (SnO</span>₂<span><span>) doped with molybdenum and niobium was synthesized using underwater plasma as a doping method. The obtained materials were characterized using X-ray diffraction, scanning electron microscopy, </span>UV spectroscopy<span><span>, and thermogravimetric analysis. The photocatalytic, gas-sensing, and </span>dielectric properties of the samples were investigated. Plasma treatment leads not only to doping of tin oxide but also to modification of its surface, which significantly enhances the photocatalytic and gas-sensing properties of SnO</span></span>₂ and facilitates the development of materials for k-capacitors.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39726-39733"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921139","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":"New Li1.94Cu2.06(MoO4)3 dielectric ceramic for ULTCC applications","authors":"J. Song ,&nbsp;M.Y. Li ,&nbsp;G.H. Chen","doi":"10.1016/j.ceramint.2025.06.209","DOIUrl":"10.1016/j.ceramint.2025.06.209","url":null,"abstract":"<div><div><span><span>To achieve the goals of miniaturization, integration and green energy saving of microwave devices, microwave dielectric ceramics must have ultra-low </span>sintering temperature<span> and good dielectric properties<span>. This study systematically investigates the microwave dielectric performances of a novel Li</span></span></span>_1.94Cu_2.06(MoO₄)₃(LCM) ceramic synthesized using the solid-state reaction method. The results indicate a denser and more uniform microstructures contribute to improved dielectric properties of the LCM ceramics. The LCM ceramic sintered at 505 °C attains an optimal relative density of 96.4 % and demonstrates outstanding microwave dielectric performance, featuring a ε_r of 8.97, a Q × <em>f</em> value of 29,113 GHz, and a τ_<em>f</em> of −62.68 ppm/°C. Additionally, the good chemical compatibility between LCM ceramics and Al electrodes makes it a promising candidate as microwave communication substrates.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39744-39749"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921141","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":"Boosting high-temperature piezoelectricity in BiFeO3-based ceramics via synergistic phase boundary and lattice distortion engineering","authors":"Jimin Lin,&nbsp;Jin Qian,&nbsp;Simin Wang,&nbsp;Jinfeng Lin,&nbsp;Yunjing Shi,&nbsp;Guanglong Ge,&nbsp;Yin Hua,&nbsp;Bo Shen,&nbsp;Jiwei Zhai","doi":"10.1016/j.ceramint.2025.06.189","DOIUrl":"10.1016/j.ceramint.2025.06.189","url":null,"abstract":"<div><div>BiFeO₃-based ceramics are one of the potential materials expected to replace conventional Pb(Zr,Ti)O₃<span>-based ceramics in the field of high-temperature piezoelectricity<span> due to their high Curie temperature (</span></span><em>T</em>_C<span>). However, the low piezoelectric properties of BiFeO</span>₃-based ceramics limit their further development and applications. Here, a synergistic tuning strategy is proposed to enhance the piezoelectric properties of BiFeO₃-based ceramics by adjusting the phase configuration near morphotropic phase boundary (MPB) and introducing lattice distortion. Near the MPB, the increased occupation of the <em>T</em>-phase can reduce the domain switch barrier, thereby allowing the dipole to switch more efficiently. Furthermore, enhancing the lattice distortion can increase the intrinsic polarization of ceramics. The above two points serve to enhance the piezoelectric properties of BiFeO₃-based ceramics. As a result, 0.7BiFeO₃-0.29BaTiO₃-0.01Bi_0.5K_0.5Ti_0.5Hf_0.5O₃ ceramics possesses a high piezoelectric coefficient <em>d</em>₃₃ of 198 ± 5 pC/N, and a high <em>T</em>_C of 489 ± 6 °C, while maintaining stable performance across a broad temperature range from 25 to 404 °C. This synergistic modulation strategy provides an idea to optimize the piezoelectric properties of BiFeO₃-based ceramics for high-temperature applications.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39540-39548"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922247","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":"Microstructural evolution and kinetics of monoclinic scheelite-type BiVO4-based materials with enhanced color performance","authors":"Qihan Sun ,&nbsp;Lin Yang ,&nbsp;Fengjie Hu ,&nbsp;Changhuan Liang ,&nbsp;Haiwang Wang ,&nbsp;Jian Qi","doi":"10.1016/j.ceramint.2025.06.276","DOIUrl":"10.1016/j.ceramint.2025.06.276","url":null,"abstract":"<div><div><span>In light of the growing awareness of environmental protection, there is an urgent need to seek out alternatives to traditional heavy metal pigments that are known to be harmful to the environment. BiVO</span>₄<span> (BVO) demonstrates considerable potential as a non-toxic and environmentally friendly yellow pigment. However, it should be noted that existing BVO pigment formulations still present several challenges regarding production cost, weathering resistance, crystalline morphology, and particle size distribution<span><span>, which collectively limit their widespread application. Given the superior yellow color tone and optical properties<span> of monoclinic<span> scheelite BVO (ms-BVO) crystals, this study examines ms-BVO from both thermodynamic and kinetic perspectives, elucidating the impact of solution acid-base environment, </span></span></span>hydrothermal reaction temperature, and reaction time on BVO crystals. It can be observed that when the pH is adjusted to a value between 4 and 7, the hydrothermal temperature is set at 120 °C, and the hydrothermal time is not less than 3 h, the formation of ms-BVO with a crystal structure is more favorable. Additionally, SiO</span></span>₂ was integrated into composite pigment preparation to assess the color performance and dispersion of SiO₂/BVO composite pigments. The analysis revealed that upon the addition of an optimal quantity of SiO₂, the crystal size increased, resulting in a more intense yellow hue. This study introduces a novel approach for the enhancement of environmentally sustainable BVO pigments, establishing a foundation for their extensive utilization in industrial applications.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 40414-40430"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922653","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 magnetic properties of Gd3+ doped Co-Mn ferrite nanoparticles for high-density data storage applications","authors":"Sweta Singh,&nbsp;Vineet Sharma","doi":"10.1016/j.ceramint.2025.06.226","DOIUrl":"10.1016/j.ceramint.2025.06.226","url":null,"abstract":"<div><div><span>Magnetic nanoparticles<span> possess distinctive properties from their nanoscale dimensions, tunable magnetic behavior, and ability to exhibit unique interactions at the atomic level. In this study, </span></span><em>Gd</em>^<em>3+</em><span>substituted ferrite nanoparticles<span> with the composition </span></span><em>Co</em>_<em>0.5</em><em>Mn</em>_<em>0.5</em><em>Gd</em>_<em>x</em><em>Fe</em>_<em>2-x</em><em>O</em>_<em>4</em> (<em>x</em><span><span> = 0, 0.005, 0.01, 0.05, and 0.1) have been prepared through the sol-gel technique. The magnetic and structural characteristics of the nanoparticles have been thoroughly investigated using </span>VSM<span>, FTIR, SEM, XRD, UV–visible, and RAMAN spectroscopy. With the incorporation of </span></span><em>Gd</em>^<em>3+</em> ions, FTIR, XRD, and RAMAN characterizations corroborate the formation of a face-centered cubic inverse spinel structure with <span><em>Fd3m</em></span><span> space group, accompanied by notable changes in structural parameters. FTIR spectra reveal intrinsic vibrations associated with metal ions at tetrahedral (</span><em>t</em>_<em>d</em>) and octahedral (<em>o</em>_<em>h</em><span><span>) sites. The magnetic characterization demonstrates ferrimagnetic behavior, with an observed increase in the </span>remanence ratio due to enhancement of </span><em>A-B</em> super-exchange interactions upon <em>Gd</em>^<em>3+</em><span> substitution. This has been further supported by the proposed cation distribution and calculated Yafet-Kittel angles. Raman spectral analysis corroborates the proposed distribution of cations, while VSM studies reveals the enhanced saturation magnetization (</span><em>M</em>_<em>s</em><span>), coercivity (</span><span><math><mrow><msub><mi>H</mi><mi>c</mi></msub></mrow></math></span>), and magnetic moment (<span><math><mrow><msub><mi>η</mi><mi>β</mi></msub><mo>)</mo></mrow></math></span> on incorporation of <em>Gd</em>^<em>3+</em> ions into <em>Co-Mn</em><span> nanoferrites, suggesting their potential for data storage<span> applications. This work highlights an appreciable enhancement in vital magnetic characteristics through controlled </span></span><em>Gd</em>^<em>3+</em> doping, leading to an optimized distribution of cations in the <em>Co-Mn</em><span> spinel structure and an efficient control over the crystallite size using sol-gel synthesis method, thereby paving the way for their application in advanced technologies.</span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39930-39945"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922934","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, electrical, and dielectric properties of microwave-assisted synthesis of Bi0.6Sr0.4 FeO3 nanoparticles for wastewater treatments: Electro-degradation of Rhodamine B dye","authors":"Mohamed Abdel-Megid ,&nbsp;Mohamed E. Eissa ,&nbsp;Ahmed T. Mosleh ,&nbsp;Nourhan A.M. Ragab ,&nbsp;Heba Y. Zahran ,&nbsp;Ibrahim S. Yahia ,&nbsp;Elbadawy A. Kamoun ,&nbsp;M.H. Ghozza","doi":"10.1016/j.ceramint.2025.06.203","DOIUrl":"10.1016/j.ceramint.2025.06.203","url":null,"abstract":"<div><div>Bi_0.6Sr_0.4FeO₃<span><span><span> (BSF) ceramics was synthesized using various methods to compare their surface morphology<span><span>, dielectric, and </span>magnetic characteristics. For 0, 5, 10, 15, and 20 min, the mixed aqueous solutions were subjected to 700 W of </span></span>microwave radiation, as coded (BSF0, BSF5, BSF10, BSF15 and BSF20). SEM findings demonstrated that the duration of microwave radiation exposure impacted significantlly the size and shape of produced </span>nanostructures<span><span>. Additionally, it was observed that when the microwave duration increased, the average particle size of nanostructures dropped. BSF samples showed a transition from tetragonal to cubic with microwave assist duration time. Notably, a significant portion of substantial </span>dielectric constant (10</span></span>³–10⁴) at lower frequencies is caused by heterogeneous electronic microstructure at grain contacts. The mechanically alloyed materials exhibited a much-decreased grain boundary resistivity, compared to solid-state and chemically-routed samples. σ_Dc as a function of temperature depicts the transition point which was observed near 340 K and shifted to low-temperature exposure time increases. σ_Dc also falled to 50 % of its value with the influence of microwave time, while E_a (0.09–0.37 eV) increased, except BSF10 sample. σ_AC increased with increasing frequency, but the effect of microwave time on σ_AC is still insignificant, where <em>ε</em><span>′ falled to 50 % of its value with 20 min. Magnetization and coercivity<span><span> affected significantly by microwave time, where corecivity increaseed 150 %, and magnetization increased 400 % with exposure to microwave for BSF20. Signatures of strong ferromagnetism at </span>room temperature were observed in some of samples. Bi</span></span>_0.6Sr_0.4FeO₃<span>, a bismuth<span><span> perovskite, is a good option for data storage applications, because of its strong coercivity and saturation magnetization. Electrocatalytic tests demonstrated that BSF10 perovskite exhibited the highest activity, achieving 98.18 %, while BSF0 achieved 54.04 % of </span>rhodamine B dye </span></span><em>(RhB)</em> degradation within 90 s, trapping investigations revealed that the main species causing the deterioration was O₂^●−.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 39677-39687"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922162","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":"Effect of SiC interlayer on microstructure and flexural strength of C/C-SiC-(Zr,Hf,Ti)C composites prepared by reactive melt infiltration","authors":"Junwen Liu ,&nbsp;Yalei Wang ,&nbsp;Zhiwei Qiao ,&nbsp;Xiang Xiong ,&nbsp;Zhiyong Ye ,&nbsp;Zaidong Liu","doi":"10.1016/j.ceramint.2025.06.234","DOIUrl":"10.1016/j.ceramint.2025.06.234","url":null,"abstract":"<div><div>C/C-SiC-(Zr,Hf,Ti)C composites were prepared by reactive melt infiltration using C/C-SiC preforms and Zr-Hf-Ti mixed powders. Systematic investigation of microstructure evolution was conducted after infiltration at different temperatures, and a mechanistic model elucidating the influence of SiC interlayer on microstructure development was established. Furthermore, the strengthening mechanism of the SiC interlayer on flexural strength<span> was also studied. Results demonstrated that the introduction of the SiC interlayer had two effects including protecting carbon fibers from erosion and creating weak interface. These combined effects significantly improved the load-bearing capacity of non-woven cloth layer. Consequently, the composite with the 0.4 μm SiC interlayer achieved an optimal flexural strength of 148.9 ± 5.7 MPa, representing a 33.9 % enhancement compared to its SiC-free composites.</span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 23","pages":"Pages 40012-40021"},"PeriodicalIF":5.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922802","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}