Journal of Materials Research and Technology-Jmr&t最新文献

{"title":"Preparation of high-purity molybdenum oxide by oxidative roasting of molybdenum concentrate pellets: Optimization of pelletization performance","authors":"Yanrui Hou ,&nbsp;Ruoyu Yang ,&nbsp;Jun Luo ,&nbsp;Hu Sun ,&nbsp;Guanghui Li ,&nbsp;Tao Jiang","doi":"10.1016/j.jmrt.2025.06.084","DOIUrl":"10.1016/j.jmrt.2025.06.084","url":null,"abstract":"<div><div>The synchronous oxidation-volatilization process of molybdenum concentrate pellets addresses several key challenges in traditional pyrometallurgy, such as low volatilization rates due to sintering and reduced product purity caused by severe dust pollution during direct ore powder smelting. Efficient pelletization of molybdenum concentrate is essential for advancing its industrial application. However, molybdenite-a typical sulfide mineral-exhibits strong hydrophobicity, which significantly hinders pellet formation and fails to meet industrial standards. To overcome this, the present study introduces kaolin into the pelletization system as a natural binder with excellent hydrophilicity, effectively improving the surface wettability of molybdenite and enabling the development of a high-efficiency composite pelletization technology. The optimized pellets demonstrate excellent physical properties, including a compressive strength of 18.12 N, an abrasion index of 0.34, and a porosity of 25.52 %, along with good structural integrity and gas permeability required for oxidative roasting. Under industrially relevant conditions, the pellets exhibit outstanding roasting performance, achieving a high molybdenum volatilization rate of 91.61 %. Post-roasting, high-purity MoO₃ crystals (99.99 %) are obtained without the need for secondary purification, confirming the process's effectiveness in impurity control and stable production of high-quality products.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 1233-1242"},"PeriodicalIF":6.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297444","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":"Numerical simulation-driven optimization of the counter-gravity adjusted-pressure casting process for large thin-wall Ni-based superalloy combustion chamber casings","authors":"Zhengye Zhang ,&nbsp;Yunwei Pan ,&nbsp;Anping Dong ,&nbsp;Zhongfeng Chen ,&nbsp;Dashan Sui","doi":"10.1016/j.jmrt.2025.06.091","DOIUrl":"10.1016/j.jmrt.2025.06.091","url":null,"abstract":"<div><div>With the increasing demand for high thrust-to-weight ratio in aerospace engines, the production of Ni-based superalloy castings with large, thin-wall structures has become increasingly critical. This study utilizes ProCast software to optimize the counter-gravity adjusted-pressure casting (APC) process for fabricating a Ni-based superalloy combustion chamber casing with complex thin-wall geometries. According to shrinkage porosity prediction results, the optimized APC process parameters are determined (pouring temperature of 1530 °C, holding pressure of 25 kPa, and initial mold temperature of 1000 °C). Filling simulations conducted under the optimized parameters reveal a stable three-stage filling sequence: (1) the bottom horizontal region filling; (2) thin-wall region filling; (3) difficult-to-fill region filling. Solidification simulations demonstrate delayed cooling at deep recesses of inner and outer rings due to reduced heat transfer rates. Microstructural characterization indicates finer grains and γ′ precipitates in thin-wall regions compared to flange regions, correlating with enhanced yield strength (529 MPa–588 MPa) in thin-wall sections. This study provides valuable insights into the optimization of APC process for large, thin-wall Ni-based superalloy components.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 1029-1040"},"PeriodicalIF":6.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279600","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 and metastable phase formation of Mo-added Ti6Al4V alloys under laser micro-alloying","authors":"Zimeng Ye ,&nbsp;Zerong Yu ,&nbsp;Kexin Zhao ,&nbsp;Konda Gokuldoss Prashanth ,&nbsp;Zhiping Sun ,&nbsp;Dejun Zeng ,&nbsp;Hengxin Zhang ,&nbsp;Sizhe Liu ,&nbsp;Fengying Zhang","doi":"10.1016/j.jmrt.2025.06.072","DOIUrl":"10.1016/j.jmrt.2025.06.072","url":null,"abstract":"<div><div>Understanding the influence of alloying elements on the solidification stage of Ti-based alloys during additive manufacturing (AM) is crucial for subsequent microstructural control and composition optimization. In this work, a laser micro-alloying (LMA) technique is employed to retain the initial solidification microstructure of the alloys. The laser micro-alloying parameters are first optimized, after which Ti6Al4V-<em>x</em>Mo (<em>x</em> = 0–8 wt%) samples are fabricated using a selected processing parameter (2400 W, 0.2 s) to investigate the influence of Mo content on the microstructure of Ti6Al4V. The results indicate that as the Mo content increases, the alloy's microstructure evolves from a uniform distribution to a distinctive cellular morphology, which is attributed to the enrichment of Mo in the cell interior. The transition from the β phase to the α/α′ phases is inhibited, ultimately resulting in a microstructure predominantly composed of the β phase. Importantly, the increase in Mo content induces a higher proportion of the α″ phase, which is due to the larger lattice distortion that makes atomic migration more difficult and favors the transformation of the <em>bcc</em>-β phase into the orthorhombic-α″ phase. Furthermore, the microhardness of the alloy exhibits a trend of initial increase followed by a decrease, with heterogeneous phases contributing to uneven hardness distribution. This work provides theoretical insights into the microstructure formation and regulation of Mo-added Ti6Al4V alloys in laser additive manufacturing.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 785-795"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264016","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":"Metastable phases formed in the combustion synthesis of Al/Ni and TiO2/Al/C","authors":"Ngafwan ,&nbsp;Tri Tjahjono ,&nbsp;Nurmuntaha Agung Nugraha ,&nbsp;Patna Partono ,&nbsp;Tri Widodo Besar Riyadi ,&nbsp;Agung Tri Wijayanta","doi":"10.1016/j.jmrt.2025.06.053","DOIUrl":"10.1016/j.jmrt.2025.06.053","url":null,"abstract":"<div><div>The self-propagating high-temperature synthesis process has significantly improved the production efficiency of various advanced materials due to its short processing time and low power consumption. The high combustion temperature, however, can alter the crystal structure of the synthesized product, including the generation of the metastable phase. This work investigated the microstructural change generated by the high-temperature reaction during the combustion synthesis of Ni/Al and TiO₂/Al/C in various compositions. Induction heating was used to ignite the combustion process of the compressed mixture under an Argon gas. The temperature profile of the reaction was measured using an infrared thermometer and pyrometer. The X-ray diffraction test was used to identify the product's phases. ImageJ supported the Scanning electron microscopy image to identify the synthesized products. The results show that combustion synthesis of the Ni/Al and TiO₂/Al/C generates AlNi, TiC, and Al₂O₃ as the primary phase, Al steinhardtite and C carbon as unreacted products, and the metastable phase comprising C lonsdaleite and C diamond. High temperature and pressure generated by the second reaction are responsible for developing Al steinhardtite, C lonsdaleite, and C diamond. This work delivers a more comprehensive understanding of the products generated during the synthesis of Ni/Al and TiO₂/Al/C while acknowledging the presence of unreacted and metastable phases.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 1041-1050"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279601","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 evolution and mechanical properties of high-strength 7075 aluminum alloy during multi-pass hot radial forging process","authors":"Chao Zhang ,&nbsp;Kun Li ,&nbsp;Shengdun Zhao ,&nbsp;Ming Chang ,&nbsp;Hong Jiang ,&nbsp;Yongfei Wang ,&nbsp;Yujian Ren ,&nbsp;Dawei Zhang","doi":"10.1016/j.jmrt.2025.06.070","DOIUrl":"10.1016/j.jmrt.2025.06.070","url":null,"abstract":"<div><div>The 7075 aluminum alloy has exceptional strength, but refining its microstructure and improving its mechanical properties presents considerable challenges. In this study, a hot radial forging process comprising preheating, multi-pass radial forging, and T6 heat treatment, was implemented on 7075 aluminum alloy rods. The microstructure evolution mechanisms in the edge and core regions of the workpieces were investigated through observations on the changes in grain morphology (grain boundary, size, and orientation) and second phase precipitation. The microhardness and tensile properties of the workpiece were assessed at varying cross-section reduction rates (CSRRs) during radial forging and distinct solution durations during T6 heat treatment. Results demonstrate that preheating considerably enhances the plasticity of the workpiece. During multi-pass radial forging, the key mechanisms of refining microstructure are geometrical dynamic recrystallization and continuous dynamic recrystallization induced by the radial compression of grains and interweaving between adjacent grains. The implementation of T6 heat treatment on the radial forged workpiece facilitates the formation of continuous equiaxed subgrains, the proliferation of fine recrystallized grains and the uniform precipitation of <em>η</em>′ phase. Radial forging combined with T6 heat treatment considerably strengthens the edge region of the workpiece (↑6.7 % in ultimate tensile strength [UTS], ↑33.3 % in elongation) at 30.6 % CSRR, and improves the overall mechanical performance of the workpiece (Edge: ↑5.7 % in UTS, ↑32.3 % in elongation; Core: ↑4.9 % in UTS, ↑40.4 % in elongation) at 55.6 % CSRR. This study may provide an expeditious and flexible manufacturing process for multi-step 7075 aluminum alloy shafts that withstand high loads in lightweighting applications.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 1276-1296"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297447","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 parametric investigation and microstructural characterization of laser directed energy deposited NiCrAlY powder","authors":"Dilipkumar Choudary Ratnala,&nbsp;Fabian Hanning,&nbsp;Shrikant Joshi,&nbsp;Joel Andersson","doi":"10.1016/j.jmrt.2025.06.057","DOIUrl":"10.1016/j.jmrt.2025.06.057","url":null,"abstract":"<div><div>NiCrAlY as a coating is often used to improve the high temperature strength and oxidation performance of superalloys. Traditionally these coatings are deposited using various thermal spray techniques. Producing these coatings with Additive Manufacturing methods like the Directed Energy Deposition with Laser Beam (DED-LB) process improves the coating-substrate bonding. Subsequently, it enhances the high-temperature capability. To achieve this, understanding the correlation between process parameters and microstructure is crucial. The commercially available NiCrAlY powder is deposited on the alloy 718 substrate in this study. A two level three factor design of experiments was conducted for single track and three-layer track depositions. Statistical analysis was used to understand the effect of the primary process parameters (laser power, scan speed and powder feed rate) on the geometrical characteristics such as height and width of the deposition, and dilution of the substrate. Microstructural studies revealed the transformation in grain morphology from intra-dendritic mode of precipitation to inter-dendritic mode of precipitation with dilution from the substrate. From the Energy Dispersive Spectroscopy analysis, the formation of γ-Ni matrix phase and β-NiAl precipitate phase was confirmed. Samples with low dilution exhibited high hardness in accordance with high β phase content. In the three-layer tracks, the presence of hard and brittle β phase along the dendritic boundaries led to surface cracking due to stress build up.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 948-962"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271920","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":"Bond damage evolution and spatial micro-mechanism analysis of corroded reinforced concrete and failure mode assessment by acoustic emission","authors":"Wensheng Wang ,&nbsp;Baoyin Liu ,&nbsp;Guojin Tan ,&nbsp;Hanbing Liu ,&nbsp;Yubo Jiao ,&nbsp;Dongye Lv ,&nbsp;Hua Wang ,&nbsp;Da Shi ,&nbsp;Shanping Zhang","doi":"10.1016/j.jmrt.2025.06.068","DOIUrl":"10.1016/j.jmrt.2025.06.068","url":null,"abstract":"<div><div>Bond performance is an important guarantee for the structural integrity and long-term service performance of reinforced concrete, which is seriously threatened by the reinforcing bar corrosion in corrosive environments. This study employs an experimental framework combining macroscopic pull-out test, microscopic scanning electron microscopy (SEM), microscopic X-ray photoelectron spectroscopy (XPS), and acoustic emission (AE) monitoring to investigate bond behavior evolution in corroded reinforced concrete with HRB400 ribbed reinforcing bar. Pull-out tests were conducted on specimens with varying corrosion extents (CE: 0 %, 3 %, 5 %, 8 %), complemented by SEM-XPS to elucidate spatial micro-mechanisms. AE technology was employed to monitor real-time damage progression, with Mel-frequency cepstral coefficients (MFCC) enabling precise segmentation of bond damage stages. Based on MFCC segmentation, the bond failure stages and modes are quantitatively classified by leveraging RA-AF values and Gaussian mixture model (GMM) clustering. Results revealed a 24.2 % decline in bond strength at CE = 8 % compared to uncorroded specimens, accompanied by a transition in failure modes from splitting to hybrid splitting-pull-out debonding. Low corrosion (≤3 %) enhances initial friction with ductile failure via rust compaction, while higher corrosion (≥5 %) causes abrupt brittle failure due to corrosion-induced cracking that degrades bond integrity. Microscopic characterization analysis showed that corrosion products (e.g., porous FeO and brittle Fe(OH)₃) reduced mechanical interlock, while microcrack propagation and stress redistribution accelerated interfacial debonding. The bond-slip process was quantitatively divided into four stages using MFCC analysis, in which higher CE values led to the disappearance of some stages. GMM clustering of RA-AF values successfully differentiated shear-dominated (low CE) and tensile-shear mixed (high CE) failure modes. Based on Pearson correlation coefficient, an established predictive model for bond behavior demonstrated high accuracy (R² &gt; 0.9) in predicting bond strength and slip. This study bridges multi-scale mechanisms, providing some references for durability assessment and maintenance strategies of corrosion-affected reinforced concrete infrastructure.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 1086-1105"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279604","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":"Preparation and properties of a new type of water-lubricated composite material with porous ceramic skeleton","authors":"Xuefei Li ,&nbsp;Zhiwei Guo ,&nbsp;Zumin Wu ,&nbsp;Wei Yu ,&nbsp;Chengqing Yuan","doi":"10.1016/j.jmrt.2025.06.077","DOIUrl":"10.1016/j.jmrt.2025.06.077","url":null,"abstract":"<div><div>Under boundary lubrication conditions, the instability of the water film causes severe wear in water-lubricated bearing friction pairs. To address the poor wear resistance of polymer materials for water-lubricated bearings, this study utilized freeze-casting technology to fabricate a porous silicon nitride skeleton and introduced polyurethane via vacuum impregnation, successfully preparing a silicon nitride/polyurethane water-lubricated ceramic composite. The effects of slurry solid content on the porous structure of silicon nitride and the composite's properties were investigated. The results demonstrate that solid content influences the number of ice crystal layers, thereby affecting pore spacing and wall thickness. The introduced polyurethane forms a soft-hard structure with the porous silicon nitride skeleton, providing storage capacity and wear resistance. Additionally, due to its damping and lubricating effects, polyurethane significantly reduces friction-induced vibration and the friction coefficient of the composite. The synergistic effects of these factors markedly improve the tribological performance of the composite. Under a 10 N load, the composite exhibits a 68.7 % and 76 % reduction in friction coefficient compared to pure polyurethane and industrial silicon nitride, respectively, with wear amounts decreased by 96 % and 63.3 %.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 796-808"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264017","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":"pH-dependent performance of alkaline electrolyzed water concrete: A comprehensive analysis of strength, durability, and microstructural evolution","authors":"Zhen Zhu ,&nbsp;Chunyu Ma ,&nbsp;Dingyuan Wu ,&nbsp;Lisheng Xu ,&nbsp;Fei Zhao ,&nbsp;Yanjun Wang ,&nbsp;Liang Wang ,&nbsp;Meinan Wang ,&nbsp;Mingxu Chen","doi":"10.1016/j.jmrt.2025.06.069","DOIUrl":"10.1016/j.jmrt.2025.06.069","url":null,"abstract":"<div><div>Aiming to address the environmental burdens and CO₂ emission issues caused by high cement clinker content in concrete, this study proposes a new approach for cement reduction in concrete through high active alkaline electrolyzed water (AEW) technology. In this study, through systematic design of three pH-gradient AEW systems (9.0, 10.0, and 11.0), the influences of AEW with different pH values on the mechanical properties, durability, and microstructural characteristics of concrete were investigated. The results showed that three AEWs accelerated cement hydration, evidenced by 23-min and 11-min reductions in initial and final setting times compared to NTW. Microstructural analyses indicated accelerated formation of cement hydration products in AEW systems, attributed to enhanced ionic activity, though pH variations exhibited little differential effects. AEW concrete demonstrated superior early-stage mechanical properties (optimal at pH value of 10.0), the strengths of AEW group increased by 10 % at 3 days and 8.5 % at 28 days than control group, with decreased growth rate during later curing stages. A lower cumulative mercury intrusion in AEW specimens verified microstructural densification through additional hydration product formation. Although the performance changes between AEW concrete with different pH values are still not significant, the synergistic effects of AEW's ionic adsorption and OH⁻ cluster permeability were considered as critical mechanisms, collectively improve the mechanical strength, and durability of AEW concrete, which can leads to a reduction in cement clinker content and CO₂ emissions for AEW concrete. The findings can provide a scientific foundation for the engineering promotion and application of AEW-based low-carbon concrete.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 760-772"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264014","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":"Quantitative analysis of optical and dielectric properties of rare earth oxides by terahertz time-domain spectroscopy","authors":"Tong Zhang ,&nbsp;Zhiyuan Zheng ,&nbsp;Mingrui Zhang ,&nbsp;Chutong Gao ,&nbsp;Shanshan Li ,&nbsp;Haochong Huang ,&nbsp;Qiming Qiu ,&nbsp;Zili Zhang ,&nbsp;Kunfeng Qiu","doi":"10.1016/j.jmrt.2025.06.059","DOIUrl":"10.1016/j.jmrt.2025.06.059","url":null,"abstract":"<div><div>The insight into the optical and dielectric properties of rare earth elements is critical for industrial development. A method to quantitatively analyse binary rare earth oxide mixtures is proposed based on terahertz time-domain spectroscopy. The terahertz refractive index is extracted by Complex Refractive Index model and the real permittivity of the samples is processed by Landau-Lifshitz-Looyenga model for mixtures of rare earth oxides at different volume ratios, respectively. Application of effective medium theory to raw data from single component samples to eliminate the dielectric influence of dilute PTFE matrices and captured air voids. Efficient extraction of intrinsic refractive index and real permittivity will facilitate quantitative characterization and application of rare earth oxides. This provides a new method to insight the optical properties and dielectric properties of rare earth elements in terahertz frequency band.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 912-920"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144272319","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}