Ceramics International最新文献

{"title":"Low-temperature complex magnetic ordering and dielectric relaxation dynamics in mixed spinel Ni0.33Co0.33Zn0.33Fe2O4","authors":"Subrata Karmakar ,&nbsp;Rajasheker Reddy Eragari ,&nbsp;J. Vasantha Madhuri ,&nbsp;G. Anil Kumar ,&nbsp;G. Naaresh Reddy ,&nbsp;G. Rajashekhar ,&nbsp;Priyambada Nayak","doi":"10.1016/j.ceramint.2026.02.069","DOIUrl":"10.1016/j.ceramint.2026.02.069","url":null,"abstract":"<div><div>This study investigates the low-temperature magnetic behavior and dielectric relaxation mechanism in the compositionally designed spinel ferrite Ni_0.33Co_0.33Zn_0.33Fe₂O₄ (NCZFO), synthesized using sol-gel auto-combustion techniques. The X-ray diffraction pattern with Rietveld refinement confirms the formation of a single-phase, polycrystalline inverse cubic spinel structure of NCZFO belonging to the space group <span><math><mrow><mi>F</mi><mi>d</mi><mover><mn>3</mn><mo>‾</mo></mover><mi>m</mi></mrow></math></span> (No. 227), where Ni²⁺/Co²⁺/Zn²⁺ ions occupy the octahedral sites, and Fe³⁺ ions occupy both octahedral and tetrahedral sites. The Raman-active phonon modes (<em>A</em>_<em>1g</em>, <em>F</em>_<em>2g</em>, and <em>E</em>_<em>g</em>) are detected in Raman spectra, which serve as a signature of the cubic spinel structure of NCZFO. The scanning electron microscopy images demonstrated large, sub-micron-sized, tightly connected grains with irregular lumps and uniform elemental presence and distributions with their stoichiometric atomic and weight percentages. Magnetic ordering, spin dynamics, and intergrain interactions were investigated using magnetic measurements by DC magnetization vs. temperature and magnetization vs. magnetic field loops. An irreversible and freezing/blocking temperature near 358 K and 215 K is revealed by zero-field-cooled (ZFC) and field-cooled (FC) curves and it suggest the presence of surface spin disorder, domain wall pinning and magnetic anisotropy influenced by Ni, Co and Zn ions. As the temperature drops, hysteresis loops at a specific temperature exhibit increasing coercivity and remanent magnetization, which is consistent with temperature-induced reversibility and strong anisotropy at low temperatures. The temperature-dependent dielectric constant (<em>ε</em>_<em>r</em>) and loss (δ) are enhanced due to thermally activated charge carriers, and a weak relaxation plateau ∼260 K was observed. Non-Debye type dielectric relaxation and the intrinsic permittivity (ε_r) were observed, which is unaffected by conduction or interfacial effects at low temperature. The activation energy (<em>E</em>_<em>a</em>) was calculated to be ∼0.41 eV for hopping of Fe²⁺/Fe³⁺ ions in NCZFO. This investigation provides new insights into the magnetic and dielectric relaxation governing mixed spinel ferrites in spintronic and cryogenic electronics applications.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14316-14326"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636221","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":"Synthesis of forsterite ceramics and the effect of B2O3 sintering aid on the microstructure and dielectric properties from black talc","authors":"Jiajun Wang ,&nbsp;Yang Gao ,&nbsp;Lulu Wen ,&nbsp;Shangke Pan ,&nbsp;Huixing Lin","doi":"10.1016/j.ceramint.2026.02.071","DOIUrl":"10.1016/j.ceramint.2026.02.071","url":null,"abstract":"<div><div>With the rapid development of 5G communication towards millimeter-wave frequencies, microwave dielectric ceramics with low-permittivity and low-loss are urgently required. Forsterite (Mg₂SiO₄) is considered a promising candidate due to its low dielectric constant and high quality factor, but yet its high sintering temperature and secondary phase formation limit the practical applications. In this work, Mg₂SiO₄ ceramics were synthesized using natural black talc as the raw material, with B₂O₃ introduced as a sintering aid. The effects of raw material selection and B₂O₃ addition on the microstructure and dielectric properties were systematically investigated using XRD, SEM, and VNA. The Q × ƒ results indicate that black talc effectively lowered the densification temperature, while a small amount of B₂O₃ further enhanced the densification and dielectric performance. The optimal properties were achieved with 0.2 wt% B₂O₃ addition, yielding ε_r = 6.71, Q × ƒ = 151,137 GHz, and τ_ƒ = - 67.3 ppm/^°C at the sintering temperature of 1350 °C. This study demonstrates that black talc combined with B₂O₃ provides a feasible route for preparing high-performance low-ε_r microwave dielectric ceramics.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14338-14345"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636452","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":"Enhancing the ablation resistance of C/C-HfC-ZrC-SiC composites via a molten-salt-deposited TiC coating","authors":"Tianzhan Shen,&nbsp;Cuiyan Li,&nbsp;Haibo Ouyang,&nbsp;Jintao Wang,&nbsp;Leer Bao,&nbsp;Sirui Wu,&nbsp;Yanlei Li,&nbsp;Xinge Niu,&nbsp;Li Wang,&nbsp;Qianqian Chen","doi":"10.1016/j.ceramint.2026.02.072","DOIUrl":"10.1016/j.ceramint.2026.02.072","url":null,"abstract":"<div><div>To enhance the ablation resistance of C/C-HfC-ZrC-SiC composites at temperatures above 2100 °C, a TiC coating was deposited on the surface of the composites by the molten salt method to achieve pore sealing. The influence of this coating on the ablation behavior of the composites was systematically investigated. When exposed to an oxygen-acetylene flame of 2.4 MW/m² for 60 s, the mass ablation rate and linear ablation rate of the TiC-coated composite were only 1.12 mg/s and 0.51 μm/s, respectively. Compared with the uncoated samples (1.64 mg/s and 1.05 μm/s), they were reduced by 32% and 51%, respectively. The excellent ablation resistance can be attributed to the preferential oxidation of the TiC coating to form a continuous liquid TiO₂ layer. This liquid layer significantly reduces the surface heat load through evaporation and heat absorption, lowering the surface ablation temperature by approximately 70 °C. Additionally, the liquid TiO₂ penetrates into the interior of the oxide scale through capillary action and reacts with HfO₂ and ZrO₂ in the matrix, promoting in-situ sintering and forming a dense (HfZrTi)O₂ composite oxide scale with a thickness of approximately 100 μm. The synergistic effect of physical sealing and chemical reaction between the coating and the substrate helps to form a robust self-healing oxide scale, providing effective protection under extreme thermal conditions.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14346-14357"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636460","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":"Electrochemical and physical investigation of hydrothermally fabricated Ba-doped ZnZrO3 for supercapacitor applications","authors":"Ansar Rafeeq ,&nbsp;B.M. Alotaibi ,&nbsp;Haifa A. Alyousef ,&nbsp;Albandari W. Alrowaily ,&nbsp;Mongi Amami ,&nbsp;Waqas Ul Arifeen ,&nbsp;Abhinav Kumar","doi":"10.1016/j.ceramint.2026.02.084","DOIUrl":"10.1016/j.ceramint.2026.02.084","url":null,"abstract":"<div><div>Assessing the sustained resilience of materials is crucial for the development of pseudocapacitive electrodes. Nonetheless, doping has been demonstrated to be a practical method for enhancing the lifespan and capacitive properties of oxide-based perovskite electrode material, such as ZnZrO₃. Perovskite oxides have been extensively studied as potentially useful materials for energy storage in electrochemical systems. Two perovskites, ZnZrO₃ and Ba-doped ZnZrO₃, were synthesized by the hydrothermal route and utilized as supercapacitor electrode materials in this investigation. Actually, to enhance the various physical and electrochemical characteristics of ZnZrO₃ for use in supercapacitors, Ba is inserted into its structure. Various physical analyses was used to determined the physical properties of fabricated electrode materials. Ba-doped ZnZrO₃ has outstanding electrochemical capabilities owing to its high surface area, as determined by the BET plot. Furthermore, electrically charged features about Ba-doped ZnZrO₃ were found to be advantageous, as evidenced by its specific capacitance (C_s) of 665.12 F/g, energy density (E_d) of 18 Wh/kg, and enhanced power density (P_d) of 215 W/kg at 1 A/g. In addition, Ba-doped ZnZrO₃ electrode showed negligible resistance (R_s = 0.79 Ω) and notable durability 50 h. This research primarily focuses on supercapacitors and other energy accumulators, emphasizing utilization of Ba-doped ZnZrO₃.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14454-14462"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636484","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":"Temperature dependent dynamic hysteresis scaling, thermal energy storage, and pyroelectric studies of CeO2 altered Ba0.85Ca0.15Zr0.1Ti0.9O3 ceramic","authors":"S. Nanda ,&nbsp;Barun Haldar ,&nbsp;T. Badapanda ,&nbsp;P. Nayak ,&nbsp;H. Joardar ,&nbsp;Sumit ,&nbsp;A. Arockiarajan ,&nbsp;Sabbah Ataya ,&nbsp;A. Abdala","doi":"10.1016/j.ceramint.2026.01.346","DOIUrl":"10.1016/j.ceramint.2026.01.346","url":null,"abstract":"<div><div>In this work, CeO₂ added Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ ceramic [BCZT + xwt% CeO₂] was synthesized using the conventional solid-state reaction method. Structural study reveals a pure perovskite structure in all the compositions. The temperature-dependent dielectric analysis indicates an rise in dielectric constant and phase transition temperature till x = 0.02 and falls thereafter at higher doping values. The temperature-dependent ferroelectric hysteresis behaviour was examined, and it was established that the remnant polarization and coercive-field reduce with temperature. The scaling relations of ferroelectric hysteresis concerning remnant-polarization (P_r), coercive-field (E_C), and hysteresis area &lt;A&gt; in relation to temperature (T) are thoroughly examined. The temperature dependent exponent of the hysteresis parameters are obtained from the standard power law. The correlation between back-switching polarization (P_bc) and temperature was analysed by calculating the activation energy associated with studied materials in accordance with Arrhenius' law. The composition's energy storage characteristics, including storage density, loss density, and efficiency, were calculated using conventional formulae. The investigation into the temperature reliance of energy storage performance has revealed a maximum energy storage efficiency of around 80 % at 100 °C for the composition x = 0.02. The performance of pyroelectric energy storage was evaluated by the Olsen cycle. Additionally, the key figures of merit for materials, including voltage responsivity (F_v), current responsivity (F_i), energy harvesting (F_e), new energy harvesting (F_e∗), and detectivity (F_d), were computed.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 13700-13710"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636635","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":"Aerosol direct writing of titanium oxide nanoparticles synthesized by spark ablation","authors":"Floren Radovanović-Perić ,&nbsp;Vilko Mandić ,&nbsp;Michael Burtscher ,&nbsp;Ivana Panžić ,&nbsp;Vedrana Špada","doi":"10.1016/j.ceramint.2025.06.236","DOIUrl":"10.1016/j.ceramint.2025.06.236","url":null,"abstract":"<div><div><span><span>The need for clean energy solutions, following the principles of green chemistry is growing every day. In this work, we present a purely solid-state one-step technique to synthesize and fabricate thin films of titanium </span>oxides<span>. Nanoparticles<span> of titanium oxide are formed by reactive spark ablation, a technique that rapidly sublimates titanium targets by using high temperature low-pressure plasma, which then react in the presence of oxygen under very high local temperatures. The synthesized particles are then deposited onto silicon<span> substrates in the form of thin films via aerosol direct writing. Morphology (FE-SEM, TEM and AFM) and structural analysis (GI-XRD) confirm that spark plasma produces highly defective oxides (where Ti</span></span></span></span>³⁺ states can be assumed), mostly corresponding to TiO_2-x<span> phases (oxygen deficient anatase and rutile) which are assembled into mesoporous thin films. Optical properties experimentally show that spark ablation has the potential to produce titanium oxide materials active in visible light, which is shown to be correlated with the saturation of oxygen during reaction. Increasing the oxygen content yielded a significant shift in optical behaviour, lowering the bandgap by ∼0.6 eV.</span></div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 15123-15129"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636720","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 metal-organic complex formation and application for the formation of thin tin sulfide films","authors":"A. Bronusiene ,&nbsp;I. Barauskiene ,&nbsp;V. Pakstas ,&nbsp;M. Talaikis ,&nbsp;B. Zsiros ,&nbsp;I. Ancutiene","doi":"10.1016/j.ceramint.2025.11.083","DOIUrl":"10.1016/j.ceramint.2025.11.083","url":null,"abstract":"<div><div>This study demonstrates the formation of a di-anionic metal-organic complex synthesized from tin(II) ions and L-ascorbic acid in an alkaline solution. The successful formation of the complex was confirmed through FTIR analysis, highlighting the coordination interactions between the metal ion and the organic ligand. Additionally, the thermal treatment at 300 °C of tin sulfides under an inert atmosphere resulted in significant changes in their crystallographic properties leading to the formation of SnS₂ together with SnS. These changes were evidenced by variations in the intensities of XRD and Raman peaks, underscoring the structural transformations induced by thermal processing. Furthermore, the electrochemical characterization revealed remarkable supercapacitive behavior, indicating the potential application of these materials in energy storage devices. The highest specific capacitance of 23,7 F∙g⁻¹ was obtained for the film prepared after 40 SILAR deposition cycles followed by annealing. This work provides valuable insights into the synthesis, thermal behavior, and electrochemical performance of tin-based metal-organic complexes and their derivatives.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 15236-15242"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636723","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":"Next-generation dental drills: Tribological and antibacterial behavior of AlTiN, AlCrCN, and TiCN coatings","authors":"Seda Ataş Bakdemir ,&nbsp;Doğuş Özkan ,&nbsp;Cenk Türküz ,&nbsp;Serdar Salman","doi":"10.1016/j.ceramint.2026.02.023","DOIUrl":"10.1016/j.ceramint.2026.02.023","url":null,"abstract":"<div><div>This study investigates arc-PVD AlTiN, AlCrCN, and TiCN coatings deposited on 440M stainless steel to improve the mechanical, tribological, and antibacterial performance of dental drills under dry and artificial-saliva conditions. The coatings were characterized using SEM/EDX, AFM, XRD, and Raman spectroscopy confirming dense face-centered cubic (fcc) films with a thickness of ∼1.5 μm and nanoscale crystallite sizes of 7.45 nm (AlTiN), 7.25 nm (AlCrCN), and 4.97 nm (TiCN), as well as contact angles of 95.39°, 93.94°, and 89.10°, respectively. TiCN exhibited the highest hardness and elastic modulus (35.94 GPa and 444.33 GPa, respectively), the best wear-resistance index (H³/E² ≈ 0.23), and the highest adhesion strength (Lc₂ = 83.39 N). Tribological tests showed that carbon-rich TiCN maintained coating integrity in artificial saliva at 5 N, displaying the lowest friction and no oxidative wear signatures, while antibacterial assays demonstrated reduced <em>E. coli</em> viability for all coatings, with AlCrCN achieving the greatest reduction (28.75%). Overall, the results indicate that combining compositional design and surface topography engineering significantly enhances the tribological and antibacterial performance of dental drill coatings, with TiCN representing a promising candidate for future dental drilling tools.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 13806-13819"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636766","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":"Synergistic charge transfer in Y-doped CeO2/g-C3N4 ceramic nanohybrids for efficient visible-light-activated water remediation","authors":"Mohamed Abdel Rafea ,&nbsp;Faisal Alresheedi ,&nbsp;Magdi E.A Zaki ,&nbsp;M. Khairy ,&nbsp;Mohamed R. El-Aassar ,&nbsp;Imran Shakir ,&nbsp;Abdullah K. Alanazi ,&nbsp;Muhammad Aadil ,&nbsp;Mazen R. Alrahili","doi":"10.1016/j.ceramint.2026.02.044","DOIUrl":"10.1016/j.ceramint.2026.02.044","url":null,"abstract":"<div><div>Rationally designed nanohybrid materials featuring distinct charge separation pathways to reduce the recombination of photogenerated charge species (e−/h+) have garnered promising attention in the development of highly efficient visible-light-triggered photocatalysts for wastewater detoxification. In the present study, yttrium-doped ceric oxide-based Y-CeO₂/g-C₃N₄ hybrid has been prepared to degrade the carcinogenic azo dyes. Initially, pure CeO₂ and its Y-doped compositions with varying dopant percentage (1%)Y-CeO₂, (2%)Y-CeO_2, (3%)Y-CeO_2, and (4%)Y-CeO₂ have been synthesized via the hydrothermal route, and the (3%)Y-CeO₂ (optimized Y-doping) was combined with graphitic carbon nitride (g-CN) to develop (3%)Y-CeO₂/g-CN material. The photocatalytic activity of CeO₂, (3%)Y-CeO₂, and (3%)Y-CeO₂/g-CN was estimated by Congo red (CR) degradation in visible light irradiation. Systematic studies were performed, which included process parameter optimization (pH = 4, 10 mg/L CR dye, and catalyst dose = 50 mg), kinetics of the CR degradation reaction (first-order kinetics fitting), scavenging investigation, reusability, and photostability. The (3%)Y-CeO₂/g-CN displayed maximum CR degradation (93.26%) compared to (3%)Y-CeO₂ (65.76%), g-CN (39.7%), and CeO₂ (49.13%) due to facilitated charge separation, which suppresses the rapid e^–/h⁺ recombination. The S-scheme formation between (3%)Y-CeO₂ and g-CN has been proposed by aligning the calculated electronic band structure potentials, which facilitates the separation of e^–/h⁺ leading to ^•O₂‾ and HO^• generation. The present work provides insights into rationally designing advanced nanohybrid materials for the visible-light-activated photocatalytic application in wastewater detoxification.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14037-14048"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636768","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":"Texture control and anisotropic fracture in silicon nitride ceramics fabricated by hot pressing flowing sintering","authors":"Qiang-Guo Jiang,&nbsp;Peng-Chao Yang,&nbsp;Yi-Jun Su,&nbsp;Wei-Long Liu,&nbsp;Fupo He","doi":"10.1016/j.ceramint.2026.02.055","DOIUrl":"10.1016/j.ceramint.2026.02.055","url":null,"abstract":"<div><div>This study employed hot pressing flowing sintering (HPFS) to fabricate Si₃N₄ ceramics with tailored texture and grain size. The work identifies two distinct microstructures that can yield high-strength Si₃N₄: 1) a fine-grained, low-defect microstructure, and 2) a highly textured microstructure with high-aspect-ratio grains. However, such a high degree of texture also introduces a critical issue: weakened interlayer bonding induces a complete transition to intergranular fracture. The resulting transverse cracking suppresses key toughening mechanisms such as crack deflection and bridging, thereby compromising the achievable strength. Paradoxically, this nacre-like, \"brick-and-mortar\" microstructure promotes stable delamination, where crack growth and deflection dissipate energy prior to catastrophic failure. These findings collectively establish HPFS as a promising route for fabricating quasi-ductile Si₃N₄ ceramics that combine high strength with stable crack propagation.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14185-14191"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636818","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}