Ceramics International最新文献

{"title":"A dual-stage sintering strategy for fabricating TiB2–50 vol%Al composites with a uniformly distributed Al phase","authors":"Ya-Long Wang,&nbsp;Guo-Hua Zhang","doi":"10.1016/j.ceramint.2026.02.060","DOIUrl":"10.1016/j.ceramint.2026.02.060","url":null,"abstract":"<div><div>With a low density and a high strength, TiB₂–Al composites are attractive candidates for weight-critical structural components. In this work, a two-step sintering strategy was proposed to fabricate TiB₂–50 vol% Al composites. First, spark plasma sintering (SPS) was conducted in a temperature range below the melting point of Al to pre-consolidate the TiB₂–Al powder mixture. This step enabled the near-full densification of composite with a sufficient load-bearing capability through the creep deformation of Al. Subsequently, a secondary high temperature treatment was performed above the melting point of Al. During this step, liquid-phase wetting and migration promoted the redistribution and interconnection of Al within the TiB₂ skeleton. The results demonstrated that the secondary liquid-phase densification markedly improved microstructural homogeneity and led to a synergistic enhancement in overall mechanical performance, with the flexural strength increased to 754 MPa, fracture toughness improved to 10.42 MPa m^1/2, and Vickers hardness reached 187.2 Hv. This approach provides a new route for fabricating high–metal-volume-fraction TiB₂–Al composites with improved properties.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14220-14230"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636822","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":"Stratified assembly pressing for enhanced mechanical characteristics and sealing performance of borosilicate glass composites","authors":"Chao Zhou,&nbsp;Keqian Gong,&nbsp;Zheng Liu,&nbsp;Zifeng Song,&nbsp;Zhangjing Shi,&nbsp;Siyue Nie,&nbsp;Yong Zhang","doi":"10.1016/j.ceramint.2026.02.096","DOIUrl":"10.1016/j.ceramint.2026.02.096","url":null,"abstract":"<div><div>Borosilicate glass composites are extensively used in glass-to-metal seals (GTMs) due to their superior insulating properties and hermeticity. In this study, the conventional dry-pressing process was optimized into a stratified assembly pressing method, where samples were compacted in 1, 3, or 5 layers and then pressed as an assembly to produce borosilicate glass composites with varying alumina doping concentrations. Experimental results show that increasing the number of stratified layers effectively reduces internal porosity. Furthermore, the “low porosity layer” structure formed during assembly pressing significantly decreases the free energy at crack tips, thereby enhancing the mechanical properties of the composites. The highest compressive strength, 658 ± 24 MPa, was achieved at an alumina doping level of 10 wt%. However, excessive alumina doping resulted in particle agglomeration and increased porosity, which negated the benefits of the stratified assembly pressing and led to a reduction in compressive strength. To better evaluate sealing performance, the GTM shear strength testing method was improved by replacing the ISO 3611:2010 cross-cut method with a ring-seal configuration. This new configuration demonstrated that stratified assembly pressing enhances the compressive stress exerted by the metal shell on the borosilicate glass composite by modulating glass shrinkage during cooling. The optimal shear strength, 152 ± 4 MPa<strong>,</strong> was also obtained at 10 wt% alumina doping, further confirming that the intrinsic properties of the glass play a pivotal role in seal performance. This study presents a novel and practical strategy for improving the quality and reliability of GTMs by optimizing both fabrication processes and testing methodologies.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14580-14591"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636479","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":"Lead-free BCZT ceramics enable high energy harvesting through critical grain size optimization","authors":"Na Lin ,&nbsp;Jinfeng Lin ,&nbsp;Yali Hao ,&nbsp;Anming She ,&nbsp;Yongqi Wei ,&nbsp;Cheng Shi ,&nbsp;Wu Yao","doi":"10.1016/j.ceramint.2026.02.098","DOIUrl":"10.1016/j.ceramint.2026.02.098","url":null,"abstract":"<div><div>Piezoelectric properties are inextricably linked to grain size in addition to compositional design. In this work, lead-free (Ba_0.85Ca_0.15)(Zr_0.1Ti_0.9)O₃ (BCZT) exhibiting grain diameters of 7.58 to 24.20 μm were produced using hot-pressing sintering (HPS), conventional sintering (CS), and hybrid sintering methods respectively. The influence of grain dimension on domain configuration, phase-transition characteristics, and electromechanical behavior was systematically assessed, aiming to identify the grain size range associated with optimal functional performance. It was observed that both the piezoelectric coefficient (<em>d</em>₃₃) and the electromechanical coupling factors (<em>k</em>_t, <em>k</em>_p) exhibited a pronounced enhancement as the grain size increased, reaching optimal values at the critical grain size of 12.76 μm (<em>k</em>_t &gt; 49%, <em>k</em>_p &gt; 50%, <em>d</em>₃₃ &gt; 500 pC/N). As grain size decreases, the orthorhombic–tetragonal (<em>O-T</em>) phase transition becomes increasingly diffused, and is nearly suppressed at 7.58 μm, leading to deteriorated electromechanical performance. When prepared as a piezoelectric energy harvester, the maximum output voltage generated is 5.1 V and the power is 65 μW, demonstrating performance on par with typical lead-containing analogues. Rayleigh analysis confirmed that enhanced external contributions (e.g., domain wall motion) in the coarse grains promote superior piezoelectricity. This work provides an experimental and theoretical basis for further investigation of the constitutive relationship between grain size and piezoelectric properties of BCZT-based ceramics.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14603-14615"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636481","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":"Copper-dependent modification of structural and functional properties of potassium silicate glasses for catalytic applications","authors":"Piotr Legutko ,&nbsp;Patrycja Przedwojska ,&nbsp;Michał Dziadek ,&nbsp;Gabriela Grzybek ,&nbsp;Mateusz Marzec ,&nbsp;Rafał Fanselow ,&nbsp;Joanna Czapla-Masztafiak ,&nbsp;Zbigniew Olejniczak ,&nbsp;Marco Piumetti ,&nbsp;Debora Fino ,&nbsp;Katarzyna Cholewa-Kowalska ,&nbsp;Andrzej Adamski","doi":"10.1016/j.ceramint.2026.02.014","DOIUrl":"10.1016/j.ceramint.2026.02.014","url":null,"abstract":"<div><div>Mainly due to their tunable structural and physicochemical properties, glassy systems belong to an interesting class of materials, exhibiting wide potential applications in electronics, medicine, civil engineering, the chemical industry, etc. In this work, the effect of copper doping (0–7 mol.%) on the structural and functional properties of potassium silicate glasses was systematically investigated. Glasses were synthesized by high-temperature melting, characterized by a plethora of methods (XRF, XRD, RS, FTIR, NMR, XPS, XAS, UV/Vis-DR, TPR, DRIFT, SEM/EDX), and tested as catalysts in soot combustion as a model oxidation reaction. The structural analysis confirmed that the amorphous character of the glass matrix was largely preserved upon copper incorporation, although local nanocrystalline domains were also detected. Surface studies revealed pronounced hydroxylation and carboxylation, largely independent in their nature of copper concentration. It was demonstrated that copper is predominantly located within the bulk of the glass matrix and coexists in two oxidation states, Cu⁺ and Cu²⁺, with a Cu⁺/Cu²⁺ ratio that varies non-monotonically with the copper content.</div><div>The synthesized materials exhibited high catalytic activity in soot combustion, with <em>T</em>₅₀ values of 350–380 °C under <em>tight contact</em> and 450–500 °C under <em>loose contact</em> conditions. Importantly, a clear correlation between catalytic activity under <em>loose contact</em> conditions and the fraction of Cu²⁺ species was observed, indicating that the catalytic performance is controlled by a redox mechanism involving the Cu²⁺/Cu⁺ couple. The reported findings highlight the decisive role of copper redox speciation in determining the catalytic behavior of alkali silicate glasses and demonstrate the potential of copper-doped glassy materials as stable catalysts for such important environmental applications as soot combustion.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 13728-13738"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636624","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":"Influence of Halloysite Nanotubes from different deposits on the degradation of organic molecules","authors":"Chiara Ferlito ,&nbsp;Carla Rizzo ,&nbsp;Roufaida Merir ,&nbsp;Giuseppe Cavallaro ,&nbsp;Lorenzo Lisuzzo ,&nbsp;Antonio Palumbo Piccionello ,&nbsp;Giuseppe Lazzara","doi":"10.1016/j.ceramint.2025.02.403","DOIUrl":"10.1016/j.ceramint.2025.02.403","url":null,"abstract":"<div><div>In this work, Halloysite Nanotubes (HNTs) sourced from different geological deposits (Dragon mine and Latah County in the United States, Matauri Bay in New Zealand and Guelma in Algeria) were studied for the catalytic and photocatalytic degradations of model organic molecules, which are L (+) ascorbic acid and ibuprofen, respectively, in order to assess their distinct impacts on reactions activity. The nanoclays were fully characterized by different techniques (TGA, XRF, XRD, FTIR, ζ-potential, DLS, TEM, etc.) which enlightened differences in the morphological, thermal, chemical properties. As a direct consequence, the degradation of ascorbic was enhanced due to the presence of zinc and manganese oxide in the samples, whereas the photochemical degradation of ibuprofen, which was studied by using a photoreactor, was slowed down or speeded up depending on the particular clay used. These findings are crucial for the plethora of different applications and demonstrates the significant impact HNTs can exert on catalysis. This investigation opens up new perspectives of research for accurately selecting halloysite over other nanoclays.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 15062-15069"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636642","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":"Preparing glass-ceramics through collaborative melting of incineration fly ash and coal fly ash","authors":"Siyv Gu,&nbsp;Xin Wei,&nbsp;Fen Jiao,&nbsp;Wei Liu,&nbsp;Hongbin Ling","doi":"10.1016/j.ceramint.2026.02.028","DOIUrl":"10.1016/j.ceramint.2026.02.028","url":null,"abstract":"<div><div>To achieve high-value solid waste recycling and environmentally safe treatment of incineration fly ash and coal fly ash, CaO-Al₂O₃-SiO₂(CAS) glass-ceramics were successfully prepared via a staged melting-crystallization method. The effects of TiO₂ nucleation agent, crystallization temperature, and crystallization time on crystallization behavior, microstructure and physicochemical properties were systematically investigated. Results indicate that TiO₂ addition effectively reduces the crystallization temperature and accelerated nucleation, whereas excess TiO₂ generates deleterious CaTiO(SiO₄) secondary phases, correlating with microstructural defects and property degradation. Higher crystallization temperatures and longer crystallization times promote crystal nucleation and growth. However, excessively high temperatures induce Ostwald ripening, causing crystal coarsening and property deterioration. Under optimized conditions: TiO₂ dosage of 3.91 wt%, crystallization temperature of 1050 °C, and crystallization time of 120 min, the obtained glass-ceramic demonstrate superior performance, including 97.85% crystallinity, a density of 2.82 g/cm³, water absorption rate of 0.03%, Vickers hardness of 6.63 GPa, compressive strength of 407.26 MPa, alongside outstanding chemical corrosion resistance and heavy metals immobilization efficiencies.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 13865-13876"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636708","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":"Yb3+-activated Ta-glass-ceramic composite with space compatibility, radiation-tuned luminescence, and gamma–neutron attenuation: A photon–particle dual shield","authors":"P. Vinothkumar ,&nbsp;S. Praveenkumar ,&nbsp;J. Sakthi Swarrup ,&nbsp;T. Sivakumar ,&nbsp;Paul Dhinakaran A","doi":"10.1016/j.ceramint.2026.02.036","DOIUrl":"10.1016/j.ceramint.2026.02.036","url":null,"abstract":"<div><div>Yb³⁺ activated Borophosphate Glass-Ceramic Composite with the composition (35B₂O₃-35P₂O₅-10Al₂O₃-5SrO-7Li₂O-5BaO-2Ta₂O₅- 1Yb₂O₃), synthesized through the process of melt-quenching. This work examines the optical, gamma (γ)-ray shielding, mechanical and structural characteristics. To assess radiation-induced alterations, samples were exposed to 10 and 20 kGy doses of gamma irradiation. Their glass-ceramic nature was seen from XRD (X-ray diffraction), and density measurements showed a modest change (4.107 - 4.131 g/cm³) (20 kGy), showing structural compaction. The absorption edge redshifted, and the optical bandgap decreased (2.54 → 2.38 eV), which was observed with increasing dosage using UV-Vis-NIR spectroscopy, indicating the production of non-bridging oxygen and radiation-induced defects. FTIR spectra revealed significant network changes and bond rearrangements following irradiation. At higher dosages, photoluminescence tests showed noticeable blue-green and near-infrared emission (974 nm) with a discernible Yb³⁺ → Yb²⁺ conversion. Using an HP-Ge detector, gamma-ray shielding characteristics such as mean free path (MFP), linear attenuation coefficient (LAC), and half-value layer (HVL) were determined experimentally and verified using Phy-X/PSD and EpiXs simulations. LAC was 0.314 cm⁻¹ (exp) and 0.319 cm⁻¹ (theory) at 0.6617 MeV, with a 1.66% relative deviation. Between 0.6617 and 1.333 MeV, MFP grew from 3.129 cm to 4.542 cm, whereas HVL increased from 2.169 cm to 3.147 cm. This material's outstanding attenuation capabilities are further confirmed by its high FNRCS (fast neutron removal cross-section ΣR = 0.14 cm⁻¹), buildup factors (EBF/EABF), and Zeff (effective atomic number). Low transmission factor values and high radiation protection efficiency across the studied energy range further confirmed the excellent γ-ray shielding performance of the composite. Thermoluminescence peaks at 197 °C with an activation energy (E) of 0.73 eV, demonstrating its potential for dosimetry. Yb³⁺ Activated tantalum borophosphate glass-ceramic composite is established as a potential multifunctional material for space and high-radiation conditions based on the combined optical and shielding achievements.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 13945-13970"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636717","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":"Microstructure, interface characteristics and compressive strength of CNTs/Clay hybrid- high early strength Portland cement composites","authors":"Supakporn Aodkeng ,&nbsp;Sakprayut Sinthupinyo ,&nbsp;Wilasinee Hanpongpun ,&nbsp;Arnon Chaipanich","doi":"10.1016/j.ceramint.2025.11.082","DOIUrl":"10.1016/j.ceramint.2025.11.082","url":null,"abstract":"<div><div>Carbon nanotubes (CNTs) have outstanding strength properties that have potential to improve the durability and strength of concrete. CNTs/clay hybrid, produced from chemical vapor deposition method, was found to enhance compressive strength of cement matrix using a small amount. In this research, CNTs/clay hybrid were added at 0.02 wt% up to 0.20 wt%. with high early strength Portland cement (ASTM type III). Compressive strength was investigated at an early age until 28 days. Microstructure, interface characteristics and pore size distribution by mercury intrusion porosimetry (MIP) were also investigated. In addition, Phase characterizations were investigated by X-ray diffraction and scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS). CNTs/clay hybrid was found to contribute to the compressive strength enhancement of the early strength developed by high early strength Portland cement which was optimum at 0.10 wt%. The MIP results showed that the addition of CNTs/clay hybrids contributes to reducing the pore size within the cement paste. Furthermore, CNTs/clay hybrid can be seen bridged between the hydration products which help load transfer within the cement matrix.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 15226-15235"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636722","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":"Robust bioinspired superhydrophobic coating on titanium: Preparation and dual anti-corrosion and anti-biofouling functionality","authors":"Yinsha Wei ,&nbsp;Yibo Ouyang ,&nbsp;Zhihao Zhou ,&nbsp;Ke Li ,&nbsp;Ri Qiu ,&nbsp;Jin Zhao","doi":"10.1016/j.ceramint.2026.02.045","DOIUrl":"10.1016/j.ceramint.2026.02.045","url":null,"abstract":"<div><div>Despite inherent corrosion resistance of titanium and its alloys, their performance can be compromised in service by galvanic corrosion, hydrogen embrittlement, and biofouling. In this study, an integrated approach combining micro-arc oxidation (MAO) with electrochemical deposition is employed to fabricate a robust superhydrophobic surface (SHS) on TA2 titanium alloy, achieving integration of wear resistance, corrosion inhibition, and anti-fouling properties. Firstly, the ceramic layer is fabricated onto the Ti alloy surface via the MAO approach, and the porous matrix is achieved. Secondly, the electrodeposition is used to grow the europium myristate complex, which shows the superhydrophobicity wettability due to the intrinsic hydrophobicity and roughness of the deposit. For the anticorrosion capability evaluation, the potentiodynamic polarization curves indicate that the SHS has the lowest corrosion current density (<em>i</em>_corr = 2.67 × 10⁻⁸ A/cm²), compared with the MAO coating (<em>i</em>_corr = 3.08 × 10⁻⁷ A/cm²) and bare TA2 substrate (<em>i</em>_corr = 4.60 × 10⁻⁷ A/cm²). For the anti-biofouling performance, surface coverage of <em>P. aeruginosa</em> biofilm is at 15.48% for TA2, 4.20% for the MAO coating, and only 0.14% for the SHS. These results demonstrate that the MAO/SHS composite coating developed on the TA2 substrate is a highly promising strategy to mitigate biofouling.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 14049-14058"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636769","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 zinc aluminate spinel ceramics through sintering for light emitting applications","authors":"Sajid Hameed,&nbsp;Abdul Ghaffar,&nbsp;Ali Raza,&nbsp;Hadia Noor,&nbsp;Saira Riaz,&nbsp;Shahzad Naseem","doi":"10.1016/j.ceramint.2026.02.032","DOIUrl":"10.1016/j.ceramint.2026.02.032","url":null,"abstract":"<div><div>The undertaken study investigates the influence of sintering temperature on crystallographic and optical response of zinc aluminate (ZnAl₂O₄) ceramic with a normal spinel cubic structure. The samples were engineered through solid state reaction method; thereafter they were sintered at four varying temperatures. The effect of sintering temperature on the structural, morphological and optical properties of ZnAl₂O₄ has been systematically investigated using a range of characterization techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, UV-visible (UV-Vis) and photoluminescence (PL) spectroscopy. The formation of a pure spinel phase is confirmed through both XRD and FTIR analysis. Results indicate that elevating the sintering temperature leads to decline in the direct bandgap energy, calculated from UV-Vis spectra using the Tauc plot. Photoluminescence analysis reveals that ZnAl₂O₄ exhibits a strong violet emission, with fluorescence restricted to the violet and blue regions of the visible spectrum. The semiconducting nature of spinel-phase zinc aluminate, coupled with the effects of sintering, contributes to improved optical performance, highlighting its potential in optoelectronic applications.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"52 10","pages":"Pages 13907-13915"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636776","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}