Ceramics International最新文献

{"title":"Upcycling municipal solid waste incineration bottom ash in clay-bonded bricks","authors":"Adeolu Adediran ,&nbsp;Shaurin Maher Kikky ,&nbsp;Suman Kumar Adhikary ,&nbsp;Vilma Ducman ,&nbsp;Priyadharshini Perumal","doi":"10.1016/j.ceramint.2024.12.324","DOIUrl":"10.1016/j.ceramint.2024.12.324","url":null,"abstract":"<div><div>There is an increasing concern about the management of municipal solid waste incineration bottom ash (BA), of which approximately 300,000 tons are generated annually in Finland. As an alternative to the landfilling of this waste, which is the most common practice in the industry, this study investigates the feasibility of upcycling BA for clay brick production. Here, kaolinitic and illitic clays were selected as the precursors. Kaolinitic or illitic clays containing 10, 20, and 30 wt% BA and their counterparts without BA were fired at 1000 °C. The materials and prepared bricks were characterized using X-ray diffraction, thermogravimetry, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, mass loss, visual appearance, linear shrinkage, water absorption, apparent density, compressive strength, freeze–thaw, and leaching tests. The experimental results show that the incorporation of BA as an admixture positively influenced the properties of illitic clay-based bricks, which exhibited a reduction in cracks, mass loss, and water absorption while having higher apparent density, compressive strength, and residual strength than kaolinitic clay-based bricks. This is mainly ascribed to the difference in their sintering behavior and chemical and mineralogical composition; more notably, it is ascribed to the higher content of alkali oxides (K₂O and Na₂O) in the illitic clay than in the kaolinitic clay. The water absorption of the bricks varied from 4 % to 25 %, and the compressive strength varied from 12 to 19 MPa depending on the BA content and clay type. Nevertheless, the compressive strength of all bricks satisfied the ASTM <span><span>C62</span><svg><path></path></svg></span> standard for bricks subjected to negligible weathering, and the residual strength of some samples after exposure to 50 freeze–thaw cycles demonstrated their resistance to severe weathering. The dual effects of sintering and BA addition resulted in more stable crystalline phases and a densified microstructure. Moreover, the heavy metals in BA were encapsulated in kaolinitic and illitic clay bricks and satisfied EU regulations for inert and nonhazardous materials.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 8941-8954"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoluminescence and Judd-Ofelt studies on Pr3+ activated CdO-B2O3 invert glasses: Advanced reddish solutions for crop illumination","authors":"W. Romero-Romo ,&nbsp;A.N. Meza-Rocha ,&nbsp;O. Soriano-Romero ,&nbsp;R. Lozada-Morales ,&nbsp;V. Vargas García ,&nbsp;B. Flores Desirena ,&nbsp;S. Carmona-Téllez","doi":"10.1016/j.ceramint.2024.12.446","DOIUrl":"10.1016/j.ceramint.2024.12.446","url":null,"abstract":"<div><div>Synthesis and characterization of Pr³⁺-activated CdO-B₂O₃ invert glasses are reported. The glasses have a starting composition of 80 % CdO and 20 % B₂O₃. X-ray diffractograms reveal that the glasses remain amorphous in the doping range. Optical direct band gap values of 3.18 ± 0.03 eV indicate suitable transparency for Pr³⁺-related transitions. The emission spectra under 446 nm excitation show Pr³⁺ transitions centered at 487, 527, 603, 645, 706, and 729 nm, being the emission at 603 nm (³P₀ → ³H₆ + ¹D₂ → ³H₄) the most intense. Notably, the ³P₀ → ³H₆ + ¹D₂ → ³H₄ emissions overlap with the absorption of chlorophyll <em>a</em>, suggesting potential applications for reddish crop illumination. The highest emission intensity was observed at 0.6 mol% Pr³⁺. At higher Pr³⁺ concentrations, the emission is quenched due to an increase in the cross-relaxation rate. The Judd-Ofelt parameters, obtained via least-squares fitting from theoretical and experimental oscillator strengths for the optimal emitting invert glass sample (0.6 mol% Pr³⁺), show a trend of Ω₂ &gt; Ω₆ &gt; Ω₄.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10159-10168"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593497","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":"Flux pinning mechanism of Bi-2223 bulk superconductors by tuning Bi-2212 and Bi-2234 intergrowths","authors":"Hao Cao ,&nbsp;Shengnan Zhang ,&nbsp;Yaru Cui ,&nbsp;Yiming Wang ,&nbsp;Lei Zhi ,&nbsp;Botao Shao ,&nbsp;Xueqian Liu ,&nbsp;Jixing Liu ,&nbsp;Chengshan Li ,&nbsp;Jianfeng Li ,&nbsp;Pingxiang Zhang","doi":"10.1016/j.ceramint.2024.12.433","DOIUrl":"10.1016/j.ceramint.2024.12.433","url":null,"abstract":"<div><div>In this study, we have regulated the density of Bi-2212 and Bi-2234 intergrowth layers by tuning the Cu content. The phase composition and microstructural changes have been investigated by employing X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and aberration-corrected transmission Electron Microscope (AC-TEM) analysis. It has been noticed that with the increasing Cu content, a chemical reaction between the Bi-2212 phase and the Pb-rich phases can be promoted, thereby efficiently facilitating the formation of the Bi-2223 phase. Consequently, a remarkable 1.4-fold increase in self-field critical current density (self-field <em>J</em>_c) is observed, which can be attributed to the maximum volume fraction of the Bi-2223 phase (97.5%). With further increase of Cu content, a high density of Bi-2234 intergrowths was observed within Bi-2223 grains with a high Cu content (3%), resulting in a decline in flux pinning force (<em>F</em>_p). Conversely, Bi-2223 bulks with a 0% Cu addition, characterized by a high density of Bi-2212 intergrowth, demonstrate superior <em>F</em>_p (∼10⁹ N/m³) under high magnetic fields (4.2 K, 10 K, and 20 K). In summary, the phase composition and density of intergrowths within Bi-2223 grains can be systematically tuned with the change in Cu content. Compared to Bi-2212 intergrowth, the appearance of Bi-2234 intergrowth can decrease the superconducting uniformity (Δ<em>T</em>_c) and intra-granular pinning force (<em>α</em>_g(0)) of Bi-2223. Consequently, atomic point defects (cations) within the Bi-2223 grains may transform into Bi-2234 intergrowths. Since the flux pinning mechanism of Bi-2223 under high fields is dominated by point pinning, surface defects (high density of Bi-2234 intergrowths) cannot effectively serve as pinning centers, resulting in a rapid decline in current-carrying performance.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10014-10025"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593633","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":"Glasses doped with europium ions for use in optoelectronic devices: W-LED","authors":"V Ravi Teja,&nbsp;M. Sreenivasulu,&nbsp;Vijaya Kumar Chavan","doi":"10.1016/j.ceramint.2024.12.439","DOIUrl":"10.1016/j.ceramint.2024.12.439","url":null,"abstract":"<div><div>Using a melt quench process, phosphate glasses doped with europium have been synthesized with a specific chemical composition that makes them ideal for use in white LEDs. The samples are well-suited for optical applications due to their high refractive index and density. These glass materials demonstrate a high Hruby criteria value and excellent thermal stability. The bonding structures associated with P-O-Eu and P-O-P stretching and bending are identified based on their respective frequencies. Notable absorption peaks are detected at 361 nm, 376 nm, and 393 nm. From the emission spectra of the produced glass samples, the Judd-Ofelt parameters are obtained Ω 2, Ω 4, and Ω 6 are the intensity parameters for europium-doped phosphate glasses, in that order. The Ω 2 parameter is important because it shows the covalent interaction between europium ions and ligand anions, which is a result of the asymmetry of the local environment around the trivalent rare earth ions (Eu³⁺). Five different glass samples, designated as EuP 1 – EuP 5, were found to be acceptable for white LEDs based on the CIE plot, which shows that they generate white light when stimulated at 361 nm, 376 nm, and 393 nm. If light-emitting diode (LED) technology is to continue to advance, phosphate glasses doped with europium will play an increasingly important role in enhancing overall colour quality, efficiency and display flexibility. Their performance in transforming high-energy light into specific color visible light increases their value in the LED industry.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 10077-10094"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593699","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":"Microwave absorption properties and electromagnetic characteristics of MoS2/MXene sandwich composites","authors":"Qiang Wang ,&nbsp;Xiaolei Su ,&nbsp;Yan Jia ,&nbsp;Yi Liu ,&nbsp;Faisal Shahzad","doi":"10.1016/j.ceramint.2024.12.415","DOIUrl":"10.1016/j.ceramint.2024.12.415","url":null,"abstract":"<div><div>This study presents the synthesis of a novel sandwich-structured MoS₂/MXene composite, fabricated using an etching and hydrothermal approach with Ti₃AlC₂ (MAX phase), sodium molybdate, and thioacetamide as precursors. The composite's phase composition, microstructure, and microwave absorption properties were comprehensively investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and a vector network analyzer. Notably, the MoS₂/MXene composite exhibits a unique sandwich morphology that significantly enhances its microwave absorption performance when compared to the individual MoS₂ or MXene components. This enhancement is particularly evident in the frequency range of 8.2–12.4 GHz. The composite achieved a remarkable minimum reflection loss (RL_min) of −46.64 dB at a thickness of 3.0 mm. Additionally, bandwidths with RL &lt; −10 dB were observed across varying thicknesses: 1.54 GHz (at 2.5 mm, spanning from 10.86 GHz to 12.4 GHz), 3.41 GHz (at 3.0 mm, ranging from 8.99 GHz to 12.4 GHz), and 2.66 GHz (at 3.5 mm, covering 8.2 GHz–10.86 GHz). Moreover, integrating a frequency-selective surface layer into electromagnetic simulations further boosted the absorption bandwidth, achieving a broadened range of 3.06 GHz at a reduced thickness of 2 mm (from 9.34 GHz to 12.4 GHz). These results highlight the potential of the MoS₂/MXene composite as a highly efficient material for electromagnetic wave absorption, offering insights into the impact of structural design on performance optimization.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9833-9841"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593738","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":"Significantly enhanced gamma radiation absorption performance and optical features of B2O3-Na2O-BaO glass composites via ErO addition strategies","authors":"Z.A. Alrowaili ,&nbsp;Alaa Hammoud ,&nbsp;Elena V. Stroganova ,&nbsp;Chahkrit Sriwunkum ,&nbsp;I.O. Olarinoye ,&nbsp;Sultan Alomairy ,&nbsp;M.S. Al-Buriahi","doi":"10.1016/j.ceramint.2024.12.420","DOIUrl":"10.1016/j.ceramint.2024.12.420","url":null,"abstract":"<div><div>In this study, extensive physical constants, optical parameters, gamma and fast neutron cross-section-related quantities of sodium borate glasses containing Er³⁺ ions (with the chemical identity, 75B₂O₃ – 5Na₂O – (20-x)BaO – (<em>x</em>) Er₂O₃, where x = 0; 1; 2; 3; 5, and 10 mol.%), are presented. The sodium borate glass containing Er³⁺ ions was fabricated based on the well-known melt-quench technique. The density of the glasses shows an increasing trend with erbium ion concentration, reaching a maximum value of 3.165 g/cm³ at x = 5 mol%. The effective concentration of erbium ions increased from ∼ 2 × 10²⁰ to 21 × 10²⁰ ions/cm³ for the investigated glasses. The glasses exhibited high optical transparency in the 200–1100 nm wavelength range. The gamma ray mass attenuation coefficients of the glasses were in the range 0.0265–21.3424 cm²/g, 0.0270–23.9997 cm²/g, 0.0275–26.5225 cm²/g, 0.0279–28.9208 cm²/g, 0.0287–33.3789 cm²/g, and 0.0304–42.8821 cm²/g, for x = 0; 1; 2; 3; 5, and 10 mol.%, respectively. The Er³⁺ ion-rich glasses had higher gamma interaction coefficients. The optimum concentration of Er₂O₃ that resulted in the best fast neutron interaction was 5 mol%. The glasses were shown to be more efficient in shielding radiation in contrast to some conventional shielding materials. Based on the optical and radiation interaction properties, the glasses are recommended for optoelectronic and radiation protection functions.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9884-9892"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593743","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, mechanical property and thermal shock resistance of coarse-grained cemented carbides fabricated using acoustic resonance mixing and short-term ball milling procedure","authors":"Yonglong Xu ,&nbsp;Mehrdad Zarinejad ,&nbsp;Lei Wang ,&nbsp;Nian Wang ,&nbsp;Chengfa Mu ,&nbsp;Yinghong Xie ,&nbsp;Qiang Liu ,&nbsp;Tao Shen ,&nbsp;Hui Yang","doi":"10.1016/j.ceramint.2024.12.422","DOIUrl":"10.1016/j.ceramint.2024.12.422","url":null,"abstract":"<div><div>A high-performance coarse-grained WC-Co cemented carbide was synthesized using a method that combines acoustic resonance mixing with a short-term ball milling procedure. This innovative approach significantly reduces the milling time from 16 h in traditional methods to just 3 h, effectively minimizing sintering agglomeration while preserving the integrity of WC grains. The resulting cemented carbide exhibits a bending strength of 2790 MPa and demonstrates exceptional resistance to thermal shock cycles involving rapid cooling from 500 °C to ambient temperature water in each cycle. The method effectively mitigates sintering agglomeration, leading to improved mechanical properties and microstructural uniformity.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9904-9911"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593745","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":"Improving energy storage performance through structural modulation in Ca0.5(Sr0.5Ba0.5)2Nb4TaO15-based tungsten bronze ceramics","authors":"Yan Wang ,&nbsp;Shuiting Hou ,&nbsp;Yihan Tong ,&nbsp;Shudong Xu ,&nbsp;Xiaoqian Ju ,&nbsp;Pu Guo ,&nbsp;Xue Dong ,&nbsp;Lingling Wei","doi":"10.1016/j.ceramint.2024.12.424","DOIUrl":"10.1016/j.ceramint.2024.12.424","url":null,"abstract":"<div><div>A range of tungsten bronze ceramics, Ca_{0.5-0.5<em>x</em>}Na_<em>x</em>(Sr_0.5Ba_0.5)₂Nb₄TaO₁₅ (CSBN-Ta-Na<em>x</em>), were synthesized using conventional solid-phase methods in order to investigate the influence of Na substitution on the structural characteristics, relaxor behavior, and energy-storage capabilities. Two primary findings emerged from the study: (1) an increase in Na ⁺ concentration led to a structural transition from a tetragonal paraelectric <em>P</em>4/<em>mbm</em> phase to an orthorhombic <em>Bbm</em>2 phase, accompanied by an expansion in cell volume. (2) A transition from relaxor to ferroelectric behavior at room temperature was observed, which could be attributed to a reduction in A-site vacancies, leading to enhanced interactions between B-O bonds and increased polarization. Ultimately, the CSBN-Ta-Na0.8 composition demonstrated a remarkable excellent energy-storage density (<em>W</em>_rec = 3.04 J/cm³) and exceptionally high efficiency (<em>η</em> = 90 %). Furthermore, the charging-discharging properties was assessed, revealing a rapid discharge rate (<em>t</em>_0.9 = 59 ns) and a large powder density (<em>P</em>_D = 147.6 MW/cm³).</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9923-9930"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593747","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":"Significant enhancement on creep resistance of the near stoichiometric SiC fibers by ultrafast Joule heating","authors":"Litipu Aihaiti ,&nbsp;Shuxing Li ,&nbsp;Dilare Halmurat ,&nbsp;Jiajing Zhou ,&nbsp;Siwei Li ,&nbsp;Rong-Jun Xie","doi":"10.1016/j.ceramint.2024.12.403","DOIUrl":"10.1016/j.ceramint.2024.12.403","url":null,"abstract":"<div><div>Heat treating is effective to enhance the thermal stability of the polymer derived SiC fibers through increasing the grain size and purifying the grain boundary. However, a long-term heat treatment usually causes serious damages to the fibers and finally sacrifices the tensile strength. In this work, we apply an ultrafast (5–30 s) and high temperature (1900–2100 °C) heat treatment on the near stoichiometric SiC fibers (namely C3) by Joule heating. As compared with the conventional heating techniques, the ultrafast Joule heating yields evident grain growth but less fiber damage. At above 2000 °C, an instantaneous decomposition of the surface SiC grains leading to grain size reduction and a non-monotonically grain size distribution along the fiber diameter, which also contributes to decrease the surface roughness. The C3 fibers heat treated at 2100 °C for 15 s show excellent creep resistance when compared to some other commercial SiC fibers, and also keeps high tensile strength.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9722-9729"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593844","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 and magnetic characterization of Cd-doped CoCr2O4 ceramics for low-temperature applications","authors":"Huajing Gao ,&nbsp;Jagadeesha Angadi V. ,&nbsp;Shifa Wang ,&nbsp;Kiran Bhaskar ,&nbsp;Dengfeng Li ,&nbsp;Xianju Zhou ,&nbsp;Li Li ,&nbsp;Hua Yang ,&nbsp;Sheng Yun Wu ,&nbsp;Mohd Ubaidullah ,&nbsp;Chander Prakash ,&nbsp;Ashok Kumar ,&nbsp;Nagaraj Basavegowda ,&nbsp;S.O. Manjunatha ,&nbsp;Manjunatha K ,&nbsp;Li Zhengyou ,&nbsp;Kamaludin Abdulvakhidov","doi":"10.1016/j.ceramint.2024.12.390","DOIUrl":"10.1016/j.ceramint.2024.12.390","url":null,"abstract":"<div><div>The Co_1-xCd_xCr₂O₄ (x = 0–0.15) magnetic nanoparticles were synthesized by a simple solution combustion method using glucose and urea as fuel. When Cd²⁺ ions are introduced into CoCr₂O₄, the phase structure of CoCr₂O₄ is not changed, but the lattice parameter first increases and then decreases with the increasing of Cd ion concentration, and the crystallite size decreases with the increasing of Cd ion concentration. Because a large number of Cd ions may change the energy state of the grain boundary, promote the abnormal growth of the grain, and thus lead to the increase of the crystallite size, the abnormal phenomenon occurs when the doping amount reaches x = 0.12. The microstructure characterization confirms that the particle size of Co_1-xCd_xCr₂O₄ decreased with the increasing of Cd ion concentration, and the agglomeration between the particles was obvious. Magnetic characterization indicates that the magnetic transition temperature, residual magnetization, and squareness ratio of Co_1-xCd_xCr₂O₄ (x = 0.03) are larger than those of other samples. After the Cd ion concentration is increased further, the anti-ferromagnetic coupling is enhanced due to ion doping, which leads to a decrease in the average particle size and lattice parameter of Co_1-xCd_xCr₂O₄, a decrease in the number of magnetic domains and domain walls contained in each particle, and a corresponding decrease in the movement of magnetic domain walls during magnetization, resulting in a larger energy required for magnetic domain rotation, which leads to a decrease in the magnetic properties of Co_1-xCd_xCr₂O₄.</div><div>The main goal of the study mentioned in the introduction of the document is to synthesize Cd-doped CoCr₂O₄ (Co_1-xCd_xCr₂O₄) magnetic nanoparticles using a solution combustion method and systematically investigate the effects of Cd ion doping on the phase structure, microstructure, and magnetic properties of the material. The research aims to understand how varying Cd ion concentrations influence lattice parameters, crystallite size, and magnetic characteristics, with the ultimate objective of optimizing the material's magnetic properties for potential applications in magnetic storage media, transformers, inductors, and other magnetic devices.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 8","pages":"Pages 9610-9618"},"PeriodicalIF":5.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593910","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}