Materials Chemistry and Physics最新文献

{"title":"Effect of carburizing nitriding compound treatment on microstructure evolution and properties of low carbon gear steel","authors":"Yuqi Dong,&nbsp;Xiufang Cui,&nbsp;Jian Li,&nbsp;Yuting Hu,&nbsp;Guo Jin,&nbsp;Qicheng Li,&nbsp;Jinna Liu,&nbsp;Pengju Fan","doi":"10.1016/j.matchemphys.2025.130489","DOIUrl":"10.1016/j.matchemphys.2025.130489","url":null,"abstract":"<div><div>17CrNiMo6 steel is a low-carbon alloy exhibiting excellent comprehensive mechanical properties. It has often been employed as a vital component of machinery. In this study, a composite heat treatment technology based on vacuum carburizing and ion nitriding was developed. The effects of rare earth supersonic fine particle bombardment (SFPB) pretreatment on the microstructure and properties of the composite strengthening layer of 17CrNiMo6 steel after composite heat treatment were systematically studied. The results indicated that the surfaces of carbonitriding layers of vacuum carburizing + ion nitriding sample, supersonic fine particle bombardment + vacuum carburizing + ion nitriding sample, and supersonic fine particle bombardment + vacuum carburizing + rare earth lanthanum ion nitriding sample primarily comprised the ε-Fe_2∼3N phase and γ ' -Fe₄N phase. The surface hardness was nearly 940 HV₁, and the thickness of the strengthening layer reached 1.71 mm, 1.85 mm, and 2.11 mm, respectively. Compared with the vacuum carburizing treatment, the composite heat treatment had a deeper strengthening layer while significantly enhancing the wear and corrosion resistance of the surface. Specifically, the carbonitride layer of the sample with supersonic fine particle bombardment + vacuum carburizing + rare earth lanthanum ion nitriding achieved the smallest friction coefficient, wear scar width, and wear weight loss (0.61, 824 μm, and 0.7 mg), and it exhibited −0.23V and 8.97 × 10⁻⁸ A·cm⁻² minimum corrosion potential and current. Accordingly, supersonic fine particle bombardment + vacuum carburizing + rare earth lanthanum + ion nitriding sample exhibits optimal corrosion and wear resistance.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"337 ","pages":"Article 130489"},"PeriodicalIF":4.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reinforced polyurethane acrylic resin coating on liquid-crystalline polyester substrates","authors":"Longxiang Yin ,&nbsp;Hao Zhang ,&nbsp;Yuxin Tian ,&nbsp;Wei Qiang ,&nbsp;Min Luo ,&nbsp;Hanying Wang ,&nbsp;Jian Wang ,&nbsp;Shenghua Ma","doi":"10.1016/j.matchemphys.2025.130550","DOIUrl":"10.1016/j.matchemphys.2025.130550","url":null,"abstract":"<div><div>In Optical fiber coating applications, mechanical properties such as scratch resistance, wear resistance, and adhesion to liquid crystalline polyester (LCP) are of paramount importance. However, existing acrylic resin coatings still face challenges, including low adhesion, insufficient wear resistance, and high viscosity. In this study, nano SiO₂ was modified using the titanate coupling agent NDZ-201. Subsequently, the modified nano SiO₂ and γ-methacryloxypropyl trimethoxy silane (KH570) were incorporated into polyurethane acrylate resin to fabricate a novel optical fiber coating. The objective was to enhance the viscosity, stability, wear resistance, and tensile strength of the coating, with a particular emphasis on its interfacial adhesion to LCP. The rheological properties, wear resistance, and mechanical performance of the coating were characterized by using a rheometer, XIGO nano tool, and material testing machine. Additionally, the interfacial properties between the coating and LCP were evaluated through contact angle measurements and adhesion tests. The results indicated that the optical fiber coating achieved a 10 % reduction in viscosity, a 150 % improvement in wear resistance, a 24 % increase in tensile strength, and a 110 % enhancement in adhesion to LCP.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"337 ","pages":"Article 130550"},"PeriodicalIF":4.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electro-photovoltaics of grignard metathesis-derived poly(propylene imine) tetra(salicylaldimine)-co-poly(3-hexylthiophene-2,5-diyl) copolymer","authors":"Morongwa E. Ramoroka ,&nbsp;Hayelom H. Tesfay ,&nbsp;Precious Ekwere ,&nbsp;Kefilwe V. Mokwebo ,&nbsp;Vivian S. John-Denk ,&nbsp;Kwena D. Modibane ,&nbsp;Samantha F. Douman ,&nbsp;Emmanuel I. Iwuoha","doi":"10.1016/j.matchemphys.2025.130549","DOIUrl":"10.1016/j.matchemphys.2025.130549","url":null,"abstract":"<div><div>End-functionalization of polymers and synthesis of copolymers has been reported to be an effective method in tuning intermolecular interactions and electronic energy levels, which is extremely vital for improving the power conversion efficiency (PCE) of organic photovoltaic cells (OPVs). In this work, in-situ synthesis of novel dendritic poly(propylene imine) tetra(salicylaldimine)-co-poly(3-hexylthiophene-2,5-diyl) (P3HT-PSL) copolymer by Grignard metathesis is reported. Prior to performing Grignard metathesis, the poly(propylene imine) tetra(salicylaldimine) (PPI-SL) dendritic core material was synthesized using Schiff base condensation. It is noteworthy that this Grignard metathesis has never been used to grow a linear polymer chain on the four branches of dendritic core material. The properties of synthesized PPI-SL and P3HT-PSL were studied by Fourier-transform infrared (FTIR), small angle X-rays scattering (SAXS), thermal gravimetric analysis (TGA), nuclear magnetic resonance (NMR), ultraviolet–visible spectroscopy (UV–Vis), electrochemical impedance spectroscopy (EIS), photoluminescence (PL), and cyclic voltammetry (CV). Effect of poly(3-hexylthiophene-2,5-diyl) (P3HT) chains on the PPI-SL branches were investigated. The formation of P3HT-PSL was confirmed by NMR, FTIR, TGA, and UV–Vis spectroscopy. Synthesized materials were used as donor materials for OPVs and champion PCE of 0.24 % was achieved for P3HT-PSL based OPV. This work uncovers a new avenue for synthesis of organic donor materials for use in OPVs.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"336 ","pages":"Article 130549"},"PeriodicalIF":4.3,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Biogenic Novel Z-scheme Ag–CeO2/MgAl-LDH composite for enhanced photocatalytic dye degradation","authors":"Keerthana Vedhantham ,&nbsp;K. Karthik ,&nbsp;P. Keerthi ,&nbsp;Karthikeyan Ramalingam","doi":"10.1016/j.matchemphys.2025.130539","DOIUrl":"10.1016/j.matchemphys.2025.130539","url":null,"abstract":"<div><div>The increasing demand for effective water treatment solutions to combat dye pollution has driven the advancement of sophisticated photocatalytic materials. In this study, a visible-light responsive novel Z-scheme heterojunction nanocomposite of silver-doped cerium oxide (Ag–CeO₂) nanoparticles supported on magnesium aluminum layered double hydroxide (MgAl-LDH) nanoclay, prepared by utilizing soap nut extract mediated sol-gel and hydrothermal treatment. Various analytical techniques were employed to assess the composite's physicochemical properties. The FT-IR and XRD spectra displayed intense peaks, confirming high crystallinity and purity, having an average crystallite size of 9.67 nm. Photoluminescence (PL) spectra suggested lower recombination rates in the novel composite. Morphology Analysis (SEM and TEM) revealed irregular spherical and granular CeO₂ and Ag integration on the layered hexagonal MgAl-LDH, showing a polycrystalline SAED pattern. X-ray photoelectron spectroscopy (XPS) indicated higher oxygen vacancies with exceptional redox potential for efficient degradation. Dynamic light scattering (DLS) showed polydisperse aggregated particles ranging from 100 to 250 nm with a highly stable zeta potential of −19.11 mV. Electrochemical impedance spectroscopy (EIS) shows increased impedance after Ag incorporation into CeO₂/MgAl-LDH indicating improved charge separation and reduced electron-hole recombination. The ternary composite exhibited 95 % efficiency in degrading Indigo Carmine dye at a 20 mg catalyst dosage for 5 ppm dye within 30 min at neutral pH. Ag doping significantly reduced the band gap to 0.9 eV, enhancing the visible-light absorption, and promoting the hydroxyl radical generation. 72 % dye mineralization was determined by Total organic carbon (TOC) analysis and 75 % efficiency was retained after reusing the catalyst for 5 cycles. Pseudo-first-order kinetics shows a linear regression coefficient (R² = 0.98). Therefore, our ternary composite guarantees an efficient and sustainable approach to water treatment.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"337 ","pages":"Article 130539"},"PeriodicalIF":4.3,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphology evolution of Fe-doped V2O5 flower-like microspheres for H2S adsorption","authors":"Diep Ngoc Le ,&nbsp;Thi Anh Le ,&nbsp;Thao Phuong Ho Le ,&nbsp;Chien Mau Dang ,&nbsp;Phuc Hoan Tu ,&nbsp;Yusuke Shiratori ,&nbsp;Tin Chanh Duc Doan","doi":"10.1016/j.matchemphys.2025.130541","DOIUrl":"10.1016/j.matchemphys.2025.130541","url":null,"abstract":"<div><div>Vanadium pentoxides (V₂O₅) are commonly employed as adsorbents for hydrogen sulfide (H₂S). Their adsorption capacity can be enhanced by doping with transition metal oxides and/or morphology modification. This paper aims to study the morphology evolution of Fe-doped V₂O₅ flower-like microspheres for H₂S adsorption. The morphology and structure of Fe-doped V₂O₅ were characterized using FE-SEM, XRD, XPS, Raman, FTIR and XRF mapping analyses. The H₂S adsorption capacity was evaluated by passing a mixture of H₂S and N₂ gas through a test tube containing the Fe-doped V₂O₅ material, and the H₂S concentration in the output was measured with a detector to determine the adsorption capacity of the sample. At optimal doping concentration of 0.2 mmol Fe, perfect Fe-doped V₂O₅ flower-like with an average diameter of 4.5 μm and BET of 7.2 m²/g was achieved, which yielded maximum H₂S adsorption capacity of 2.24 mg/g and removal efficiency of 87%. Fe dopant ions partially replaced vanadium sites within the V₂O₅ lattice, leading to the formation of additional oxygen vacancies and there by improving the overall surface reactivity, enhancing its H₂S adsorption capacity. However, excessive Fe doping resulted in the formation of hollow structure and secondary Fe₂V₄O₁₃ phases, which altered the chemical structure of V₂O₅, partially blocked active sites and diminished the adsorption capability of the material. These findings demonstrate the potential of Fe-doped V₂O₅ flower-like as an efficient and energy-saving material for H₂S removal at room temperature.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"335 ","pages":"Article 130541"},"PeriodicalIF":4.3,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanistic insights into high-performance and selective Cd(II) detection using Ag2WO4 nanoparticle-based electrochemical sensors for real-world applications","authors":"Fouzia Mashkoor ,&nbsp;Mohd Shoeb ,&nbsp;Shushuai Zhu ,&nbsp;Jahangeer Ahmed ,&nbsp;Changyoon Jeong","doi":"10.1016/j.matchemphys.2025.130519","DOIUrl":"10.1016/j.matchemphys.2025.130519","url":null,"abstract":"<div><div>The electrochemical detection of cadmium (Cd(II)) is essential for environmental monitoring due to its high toxicity and persistence in aquatic ecosystems. This study presents a silver tungstate nanoparticle (Ag₂WO₄ NPs)-modified glassy carbon electrode (GCE) as a sensitive and selective electrochemical sensor for Cd(II) detection. The strong interaction between Cd(II) ions and the active sites of Ag₂WO₄ NPs, combined with the material's redox-active properties, enhances electron transfer, resulting in improved conductivity and signal response. The sensor demonstrated excellent performance, with a broad linear detection range from 10 to 260 ppb and an impressive detection limit of 2.022 ppb, which is well below the permissible limits for drinking water set by regulatory agencies. The sensor's practical applicability was validated using real-world water samples, including tap water, groundwater and river water, with minimal interference from co-existing ions. The relative standard deviation (RSD) values ranged from 0.69 % to 6.59 %, confirming its reliability in complex environmental matrices. These results highlight the potential of Ag₂WO₄ NPs-based electrochemical sensors as cost-effective, reliable, and efficient tools for real-time monitoring of heavy metal contamination in diverse environmental conditions.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"335 ","pages":"Article 130519"},"PeriodicalIF":4.3,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143418828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 electrochemical performance of Ni-rich cathodes for Li-ion batteries through spatial atomic layer deposition of ZnO coatings","authors":"Vu Tue Anh ,&nbsp;Hung-Anh Tran Vu ,&nbsp;Viet Huong Nguyen ,&nbsp;Ho Xuan Nang ,&nbsp;Lien Thi Do ,&nbsp;Van-Duong Dao ,&nbsp;Ngoc Hung Vu","doi":"10.1016/j.matchemphys.2025.130544","DOIUrl":"10.1016/j.matchemphys.2025.130544","url":null,"abstract":"<div><div>This work employed spatial atomic layer deposition (SALD) technology to apply an amorphous ZnO coating directly onto the cathode with precise control over its thickness (15 nm) at the atomic level to improve electrochemical performance. The cathode treated with 200 ALD cycles demonstrates significantly enhanced high current rates (171 % higher than the bare sample at 2C) and cycle stability compared to the untreated material (150 % higher than the bare sample). This improvement is attributed to the superior quality of the ALD oxide coating, which shields the active material from HF attack, reduces metal ion dissolution within the electrode, and promotes Li-ion diffusion. This SALD process offers a promising avenue for the battery industry to produce innovative electrodes capable of maintaining high performance even under rigorous conditions of high-rate cycling.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"336 ","pages":"Article 130544"},"PeriodicalIF":4.3,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“Tenoxicam-loaded bioglass/polyvinyl alcohol composites for biomedical applications: In-vitro study”","authors":"M.S. El-khooly ,&nbsp;Ahmed A. Abdel-Aal ,&nbsp;Alsayed E. Mekky ,&nbsp;A.A. Al-esnawy ,&nbsp;A.S. Abdraboh","doi":"10.1016/j.matchemphys.2025.130526","DOIUrl":"10.1016/j.matchemphys.2025.130526","url":null,"abstract":"<div><div>Incorporating nonsteroidal anti-inflammatory drugs (NSAIDs) into a bio-composite made of bioglass ceramic and polymers may help reduce the side effects associated with long-term osteoarthritis treatment. This study aims to develop a novel bio-composite of bioglass ceramic (BGc) and polyvinyl alcohol (PVA) as a drug delivery system for tenoxicam (TNX). The BGc/PVA composite, with a molar ratio of 1:2 wt%, was infused with varying concentrations of tenoxicam (10, 20, and 30 wt%). The samples were characterized using several techniques, including (XRD), (FTIR), (SEM), and (EDXA). The bioactivity of the TNX-loaded BGc/PVA composites was evaluated by immersing them in simulated body fluid (SBF). UV-VIS spectroscopy was utilized to analyze the release profile of tenoxicam over 1, 2, 4, 8, 16, 24, and 32 days of immersion in SBF. The antibacterial activity of the TNX-loaded BGc/PVA composites was tested using the agar well diffusion method, with Escherichia coli and Klebsiella pneumoniae used as models for Gram-negative bacteria, and Staphylococcus aureus and Staphylococcus haemolyticus as models for Gram-positive bacteria. Bioactivity analysis indicated that an apatite layer formed on the surface of the TNX-loaded BGc/PVA composites, confirming that the biological activity of the composites is enhanced due to increased porosity from the addition of tenoxicam. The 30TNX/BGc/PVA composite showed a higher number of apatite particles (flake-like crystals) on its surface compared to other composites, suggesting a more extensive formation of the hydroxycarbonate apatite (HCA) layer. Antibacterial assay results confirmed that the localized release of TNX from the prepared composites makes BGc/PVA composites an effective drug delivery system that can be used successfully in the treatment of chronic bone infections.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"336 ","pages":"Article 130526"},"PeriodicalIF":4.3,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Sn42Bi58 and Sn64.7Bi35Ag0.3 soldering pastes for Cu–Al direct soldering and study of their performance","authors":"Ruofan Wang,&nbsp;Yanfu Yan,&nbsp;Wenjun Li,&nbsp;Zhiming Li","doi":"10.1016/j.matchemphys.2025.130547","DOIUrl":"10.1016/j.matchemphys.2025.130547","url":null,"abstract":"<div><div>Cu–Al soft soldering plays a crucial role in the fabrication of Cu–Al composites. In this study, a new rosin-type flux for Cu–Al direct soldering was synthesized, and G-1 (Sn42Bi58 paste) and G-2 (Sn64.7Bi35Ag0.3 paste) soft soldering pastes were prepared. The results of flux physicochemical tests are as follows: density 1.11 g/cm³, pH 5.2, viscosity 32 Pa s, and non-corrosive to the copper plate. These are in line with the requirements for soldering applications. The wettability test results show that G-1 and G-2 displayed good wettability on the Cu and Al plates. This is in line with the standard Cu–Al soft soldering paste. The mechanical property test showed that G-2 had better mechanical properties than G-1, with a tensile strength of 112.57 MPa. SEM revealed that the IMC (intermetallic compound) layer of G-1 was flatter than that of G-2. This is closely related to the fact that the Ag in Sn64.7Bi35Ag0.3 powders can reduce the enrichment of metallic Bi and refine the grains.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"336 ","pages":"Article 130547"},"PeriodicalIF":4.3,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring the structural, optical, magnetic, and dielectric properties of yttrium-substituted magnesium ferrite via microwave hydrothermal synthesis","authors":"T. Suresh Kumar ,&nbsp;K. Kiran Kumar ,&nbsp;T. Ramesh ,&nbsp;I. Radhika ,&nbsp;K. Praveena ,&nbsp;S. Katlakunta","doi":"10.1016/j.matchemphys.2025.130528","DOIUrl":"10.1016/j.matchemphys.2025.130528","url":null,"abstract":"<div><div>The nanostructures of yttrium-substituted magnesium ferrites (MgFe_2-<em>x</em>Y_<em>x</em>O₄; where <em>x</em> = 0.0, 0.02, 0.04, 0.06, 0.08, and 0.10) were synthesized using microwave hydrothermal method at a synthesis temperature of 200 °C/60 min. X-ray diffraction (XRD) analysis confirmed a single-phase cubic spinel structure with a space group of Fd-3m for all samples. Morphological studies were examined with field emission scanning electron microscopy (FESEM), revealing a average grain size ranging from 60 nm to 180 nm. The band gap energy (<em>E</em>_<em>g</em>) calculated for <em>x</em> = 0.0 is 2.54 eV in tetrahedral bands and 1.84 eV in the octahedral bands. X-ray photoelectron spectroscopy (XPS) was used to analyze the compositional and chemical states of the elements. The saturation magnetization (<em>M</em>_<em>s</em>) value decreased from 18.91 emu/g (<em>x</em> = 0) to 8.41 emu/g (<em>x</em> = 0.10). The coercivity (<em>H</em>_<em>c</em>) is significantly higher for <em>x</em> = 0.02 (22.75 Oe) in comparison to MgFe₂O₄ (1.95 Oe). Dielectric constant (<em>ε</em>′) and loss tangent (tanδ) were measured over a wide frequency range (100 Hz–1 MHz). A significant change in dielectric properties was observed with yttrium substitution; the <em>ε</em>′ decreased from 28 (<em>x</em> = 0.0) to 9 for <em>x</em> = 0.10, while tanδ values ranged from 4.15 (<em>x</em> = 0.0) to 2.54 (<em>x</em> = 0.10).</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"336 ","pages":"Article 130528"},"PeriodicalIF":4.3,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}