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

{"title":"Effects of MQL on tool wear mechanisms in side milling of Ti2AlNb intermetallic alloys","authors":"Xin Wang ,&nbsp;Biao Zhao ,&nbsp;Wenfeng Ding ,&nbsp;Carlos Eiji Hirata Ventura","doi":"10.1016/j.jmrt.2025.09.227","DOIUrl":"10.1016/j.jmrt.2025.09.227","url":null,"abstract":"<div><div>Ti₂AlNb intermetallic alloy is a promising material for key aero-engine components, but its high-temperature strength, strong resistance to plastic deformation, and low thermal conductivity make it a typical difficult-to-cut material. In this study, minimum quantity lubrication (MQL) was applied to improve its machinability, and the effects of MQL on tool wear mechanisms during side milling were investigated. Compared with dry cutting, MQL significantly reduced milling forces, mitigated material adhesion, suppressed built-up edge (BUE) formation, and delayed tool wear progression. Under dry cutting, tool failure occurred when flank wear width reached 0.23 mm, whereas under MQL, failure was primarily characterized by chipping. Tool life under MQL reached 739.2 s, which was 3.28 times longer than under dry cutting (172.8 s). Milling forces under dry cutting rose rapidly from 34.68 N to 67.71 N within 172.8 s (an increase of 33.01 N). By contrast, under MQL, forces increased more moderately from 33.55 N to 38.90 N over the same period (an increase of only 5.45 N). At tool failure, the maximum milling force under dry cutting (67.71 N) was 1.74 times that under MQL (38.90 N). The dominant wear mechanisms under both conditions were adhesive wear and oxidative wear. These findings demonstrate that MQL enhances the machinability of Ti₂AlNb, reduces machining costs, and supports its broader application in aero-engine components.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1867-1876"},"PeriodicalIF":6.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227786","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":"Investigation of texture evolution and multi-mechanism strengthening in NiTi alloy produced via selective laser melting","authors":"Yi Ba ,&nbsp;Jiaxing Guo ,&nbsp;Miaoning Yan ,&nbsp;Liang Guo ,&nbsp;Qingmao Zhang","doi":"10.1016/j.jmrt.2025.09.216","DOIUrl":"10.1016/j.jmrt.2025.09.216","url":null,"abstract":"<div><div>The mechanical performance of NiTi alloys is strongly governed by microstructural features such as densification, grain morphology, and dislocation density. However, quantitative insights into how processing parameters systematically control grain size, high-angle grain boundary (HAGB) fraction, texture characteristics, and kernel average misorientation (KAM) to achieve targeted property tuning remain limited. This study integrates experimental analysis, thermo-fluid coupling simulations, and theoretical modeling to systematically investigate the effects of laser power (100–140 W) and scanning speed (900–1100 mm/s) on the densification behavior and microstructural evolution of NiTi alloys fabricated by selective laser melting (SLM). The simulations reveal the evolution of Marangoni convection within the melt pool under varying energy densities, while metallographic analysis quantifies the correlation between porosity and processing parameters. The optimal process parameters (130 W, 1000 mm/s) yielded a tensile strength of 549 MPa, elongation of 6.39 %, elastic modulus of 21.04 GPa, and microhardness of 316–321 HV. EBSD analysis showed HAGB fractions of 41.7 % (X–Z) and 41.4 % (X–Y), with average grain sizes of 19.03 μm and 27.44 μm. TEM revealed abundant linear dislocations and uniformly dispersed NiTi₂ precipitates. These results demonstrate that the combination of high densification, strong texture, and multiple strengthening mechanisms enables a favorable balance of strength and ductility, thereby providing both theoretical guidance and practical insights for optimizing SLM-processed NiTi alloys.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1960-1976"},"PeriodicalIF":6.6,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227785","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":"Interlayer adhesion in Large Format Additive Manufacturing of glass fiber reinforced ABS structures","authors":"Pablo Castelló-Pedrero ,&nbsp;Javier Bas-Bolufer ,&nbsp;César García-Gascón ,&nbsp;Francisco Chinesta ,&nbsp;Juan A. García-Manrique","doi":"10.1016/j.jmrt.2025.09.149","DOIUrl":"10.1016/j.jmrt.2025.09.149","url":null,"abstract":"<div><div>Large Format Additive Manufacturing (LFAM) is a promising technology for the rapid production of molds for high-performance composite parts in aerospace and automotive applications. Using ABS reinforced with short glass fibers (20% by weight) as granules improves production rates and mechanical performance. However, interlayer adhesion remains a major challenge, as the interface between layers is typically the weakest point in printed structures. This study examines the effects of three printing parameters on interlayer adhesion: time per layer (<span><math><msub><mrow><mi>t</mi></mrow><mrow><mi>L</mi></mrow></msub></math></span>), nozzle temperature (<span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>N</mi></mrow></msub></math></span>), and extrusion factor (<span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span>). The ABS/20GF composite is first characterized to determine its thermal and physical properties. An infrared camera monitors temperature evolution during printing, and tensile tests with loads applied perpendicular to the printing direction evaluate mechanical performance. Microstructural analysis reveals fracture mechanisms between layers. Results show that interlayer adhesion improves with shorter <span><math><msub><mrow><mi>t</mi></mrow><mrow><mi>L</mi></mrow></msub></math></span> and higher <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>N</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span> values. Thermal monitoring indicates a strong correlation between enhanced strength and reduced temperature gradients between layers, enabling better polymer chain mobility and bonding. ANOVA analysis identifies <span><math><msub><mrow><mi>t</mi></mrow><mrow><mi>L</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span> as statistically significant factors influencing interlayer adhesion. These findings provide valuable insights for optimizing LFAM process parameters to enhance the structural integrity of fiber-reinforced thermoplastic components.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1363-1378"},"PeriodicalIF":6.6,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159780","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":"Crystalline phase evolution and solid-state reaction mechanisms in high-titanium pellets during oxidation roasting","authors":"Jue Tang ,&nbsp;Sinan Li ,&nbsp;Jinge Feng ,&nbsp;Jile Qin ,&nbsp;Zichuan Zhao ,&nbsp;Xicai Liu ,&nbsp;Mansheng Chu ,&nbsp;Hongyu Tian","doi":"10.1016/j.jmrt.2025.09.199","DOIUrl":"10.1016/j.jmrt.2025.09.199","url":null,"abstract":"<div><div>This study aims to clarify the crystalline phase evolution and solid-state reaction mechanisms during the hardening process of high-titanium vanadium-titanium magnetite pellets. The experimental results showed that both increasing preheating-roasting temperature and extending preheating-roasting time were beneficial for the acquisition of compressive strength of preheated and roasted pellets. The pseudo-brookite exhibited preferred orientation during the preheating stage, which facilitated inter-particle bonding and improved the consolidation of preheated pellets. Subsequent roasting treatment demonstrated that pseudo-brookite developed superior microhardness characteristics, providing critical skeletal reinforcement that significantly contributed to the overall mechanical integrity of the roasted pellets. The suitable preheating parameters for high-titanium vanadium titanium magnetite were set to 900 °C for 20 min, and roasting parameters were set to 1100 °C for 20 min. Consequently, the strength of preheated and roasted pellets reached 527 and 2808 N, respectively, which could meet the actual production requirements.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1353-1362"},"PeriodicalIF":6.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159782","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":"Effect of tempering temperature on microstructure and mechanical properties of laser additive manufacturing repaired AISI 403 steel","authors":"Siyu Chen ,&nbsp;Yong Zhang ,&nbsp;Chunzhi Zhao ,&nbsp;Baoxian Su ,&nbsp;Li Xu ,&nbsp;Chen Liu ,&nbsp;Bao Ding ,&nbsp;Chao Xu ,&nbsp;Eshov Bakhtiyor ,&nbsp;Liang Wang ,&nbsp;Yanqing Su","doi":"10.1016/j.jmrt.2025.09.193","DOIUrl":"10.1016/j.jmrt.2025.09.193","url":null,"abstract":"<div><div>Martensitic stainless steel is widely used in the manufacturing of steam turbine blades, but the blades are prone to damage during long-term operation. As an advanced manufacturing method, additive manufacturing technology has been successfully applied in the field of metal repair. This study employed powder-fed laser additive manufacturing technology to repair AISI 403 steel, investigating the impact of tempering temperature on the mechanical properties of the repaired components. Through microstructural and mechanical property analyses, the optimal tempering temperature was determined to be 750 °C. After tempering at this temperature, the repaired components achieved excellent comprehensive mechanical properties: a yield strength of 555.4 ± 21.7 MPa, an ultimate tensile strength of 775.9 ± 27.8 MPa, and an elongation of 19.5 ± 2.5 %. The results indicate that the strength of the repaired part is higher than that of the base material, while maintaining a certain level of plasticity, providing theoretical basis and technical reference for the repair of steam turbine blades.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1290-1299"},"PeriodicalIF":6.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159789","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":"Integrated statistical modelling and process optimization of laser cladding of IN625 on Rene 125 turbine blade using advanced correlation analysis","authors":"Fareed Kermani,&nbsp;Hossein Momeni,&nbsp;Reza ShojaRazavi,&nbsp;MohammadReza Borhani","doi":"10.1016/j.jmrt.2025.09.190","DOIUrl":"10.1016/j.jmrt.2025.09.190","url":null,"abstract":"<div><div>This study investigates the influence of critical laser cladding parameters(laser power (P), scan speed (V), and powder feed rate (F))on the geometric characteristics of IN625 single-pass tracks deposited on the constrained surface (∼1.6 mm width) of Rene 125 turbine blades, diverging from conventional research typically conducted on flat plate substrates. A full factorial design systematically varied P (200–350 W), V (5–11 mm/s), and F (0–250 mg/s) to fabricate 36 single-pass tracks. Comprehensive cross-sectional analysis via SEM, integrated with advanced Pearson correlation analysis, evaluated key responses: track width (W), height (H), penetration depth (b), dilution (D), and wetting angle (T). Quadratic polynomial models achieved R² values of 0.65–0.83, confirming adequate predictive accuracy while underscoring the process complexity. Pearson correlations revealed unconventional trends distinct from flat-surface studies: laser power exhibited a significant negative correlation with track width (r ≈ −0.43) but a positive correlation with wetting angle (r ≈ 0.34). Scan speed positively influenced W while reducing H, whereas elevated powder feed rates increased H (r ≈ 0.51) yet decreased D (r ≈ −0.57) and b (r ≈ −0.49). These findings highlight the unique interplay of parameters in turbine blade repair contexts, where geometric constraints alter conventional process dynamics. Through multi-response optimization, the optimal parameter set(275 <span><math><mrow><mo>±</mo><mn>15</mn></mrow></math></span> W, 8 <span><math><mrow><mo>±</mo><mn>0.5</mn></mrow></math></span> mm/s, and 150 <span><math><mrow><mo>±</mo><mn>10</mn></mrow></math></span> mg/s) was identified to achieve precise geometric control, balancing dimensional accuracy and metallurgical integrity essential for aerospace component restoration.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1200-1212"},"PeriodicalIF":6.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120916","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":"A strategy combining interpretable machine learning, NSGA-III optimization model and strengthening and toughing mechanism to predict microstructure for rolled AZ31 magnesium alloy sheets","authors":"Bi-wu Zhu ,&nbsp;Zi-wen Feng ,&nbsp;Hao Jiang ,&nbsp;Xiao Liu ,&nbsp;Jian-zhao Wu ,&nbsp;Wen-hui Liu ,&nbsp;Fan Ye ,&nbsp;Yu-xin Lin ,&nbsp;Peng-cheng Guo ,&nbsp;Cong-chang Xu ,&nbsp;Luo-xing Li","doi":"10.1016/j.jmrt.2025.09.205","DOIUrl":"10.1016/j.jmrt.2025.09.205","url":null,"abstract":"<div><div>This study constructed an interpretable prediction model for establishing the relationship between rolling parameters and microstructure parameters in AZ31 magnesium alloy rolled sheets using machine learning and Shapley Additive exPlanations (SHAP), and a NSGA-III optimization model combined with strengthening and toughing mechanisms was used to find better process parameters. By coupling the SHAP model with Pearson correlation coefficient (PCC), the relationships between rolling process parameters (temperature, average strain rate, and reduction) and microstructure parameters (average grain size (AGS) and twin density (TD)) were revealed. The NSGA-III algorithm was employed to identify the optimal range of process parameters, establishing a reliable method for rapidly optimizing the rolling process. By comparing evaluation metrics across BP-IPSO, SVR, RF, and KNN machine learning models, it is found that the SVR model demonstrated superior performance in predicting AGS, while the KNN model with an augmented dataset exhibits higher prediction accuracy for TD. Integrating the PCC and SHAP model, it is inferred that AGS and TD are mainly affected by average strain rate. Based on strengthening and toughing mechanisms and the multi-objective genetic algorithm NSGA-III, the optimal process parameter range is determined to be temperature of 398∼409 °C, average strain rate of 3.2–7.2 s⁻¹, and reduction of 72∼76 %. Finally, the validation experiments confirm that the predictions obtained from the proposed method are consistent with the experimental results, thereby verifying the accuracy and practical effectiveness of integrating interpretable machine learning, the NSGA-III multi-objective optimization model, and strengthening-toughening mechanisms.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1028-1037"},"PeriodicalIF":6.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120867","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":"Comparative study of vacuum arc-remelting and spark plasma sintering processes on microstructure and corrosion behavior of Cp-Ti for biomedical implant applications","authors":"Neeraphat Kunbuala ,&nbsp;Kasama Srirussamee ,&nbsp;Chinnawich Phamornnak ,&nbsp;Phacharaphon Tunthawiroon ,&nbsp;Montree Hankoy ,&nbsp;Kenta Yamanaka ,&nbsp;Anak Kanthachawana ,&nbsp;Mettaya Kitiwan","doi":"10.1016/j.jmrt.2025.09.186","DOIUrl":"10.1016/j.jmrt.2025.09.186","url":null,"abstract":"<div><div>Titanium (Ti) and its alloys are widely used for biomedical applications due to their excellent mechanical properties and biocompatibility. However, the selection of an appropriate manufacturing process is critical to ensuring the optimal performance of Ti-based implants. This study investigates the effects of two fabrication methods –vacuum arc remelting (VAR) and spark plasma sintering (SPS) – on the microstructure and corrosion behavior of commercially pure titanium (Cp-Ti). VAR-Ti ingots were fabricated using arc-melting with multiple remelting cycles, whereas SPS-Ti specimens were sintered from Ti powders under pressure and pulsed current in a high-vacuum environment. Both specimens were subsequently heat-treated at 800 °C and furnace cooled. Microstructural characterization revealed coarser grains and porosity in VAR-Ti, while SPS-Ti showed refined, uniform α-phase structures. Electrochemical tests, including OCP, polarization, EIS, and ICP-MS, indicated slightly enhanced corrosion resistance in SPS-Ti, attributed to its defect-free microstructure. XPS analysis confirmed TiO₂ surface formation on both samples. Additionally, both materials exhibited high ductility and excellent biocompatibility, with cell viability exceeding ISO 10993-5 thresholds. These findings highlight the advantage of SPS in producing defect-minimized Cp-Ti with improved corrosion behavior for biomedical applications.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1300-1310"},"PeriodicalIF":6.6,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159788","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":"Tribological properties of lubricant-filled carbon nanotubes","authors":"Jiju Guan ,&nbsp;Ning Yu ,&nbsp;Ruochong Zhang ,&nbsp;Xuefeng Xu ,&nbsp;Lei Zheng","doi":"10.1016/j.jmrt.2025.09.165","DOIUrl":"10.1016/j.jmrt.2025.09.165","url":null,"abstract":"<div><div>This study investigates the incorporation of four different lubricants into the internal cavities of carbon nanotubes (CNTs) to create composite materials. The tribological properties of water-based nanofluids formulated with these composites were examined under varying conditions such as concentration and applied load. Surface analyses were also conducted to explore the lubrication mechanisms of the composites. Results showed that the friction coefficient of the composites decreased progressively during the friction process, ultimately exhibiting superior friction-reducing performance compared to the lubricants alone. This enhancement was attributed to the ability of the composites to release additives at the friction interface, forming a compound lubricating layer. Within this layer, the CNTs function as “micro-bearings,” further improving the lubricating effect.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1185-1199"},"PeriodicalIF":6.6,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120960","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":"Effect of mono- and bi-layer of Al on physical properties of predicted MAB phases Zr2AlB2 and ZrAlB for industrial applications – DFT investigations","authors":"Mst A. Khatun ,&nbsp;M.H. Mia ,&nbsp;M.M.I. Sujon ,&nbsp;M.M. Rabbi ,&nbsp;F. Parvin ,&nbsp;A.K.M.A. Islam","doi":"10.1016/j.jmrt.2025.09.188","DOIUrl":"10.1016/j.jmrt.2025.09.188","url":null,"abstract":"<div><div>We conducted first-principles calculations to study the impact of mono- and bi-layers of Al on the physical characteristics of hypothesized MAB phases Zr₂AlB₂ and ZrAlB. First the stabilities of the predicted MAB phases are confirmed. The studied materials exhibit metallic behaviour and anisotropic elastic properties. Analysis of Mulliken atomic population and charge density verifies the existence of covalent and ionic bonds. Bond length statistics highlight the relatively stronger nature of B–B bond. The elastic moduli of the phase with monolayer of Al are larger than those of bi-layer of Al, suggesting greater hardness and anisotropic behavior. Single Al layered phase has brittle properties, whereas the double Al layered phase shows ductility. Zr₂AlB₂ exhibits higher fracture toughness than ZrAlB which is suitable for heavy-duty industrial applications. Again, ZrAlB possesses higher damage tolerance than Zr₂AlB₂. The phase with bi-layer of Al exhibits very good lubricant behaviour compared to the other phase which can reduce the frictional force and improve the performance behaviour. Both compounds possess high melting temperature and low thermal expansion coefficient. Minimum thermal conductivities of Zr₂AlB₂ and ZrAlB are 1.15 and 0.98 W/mK, respectively, which are smaller than the reference value (1.25 W/mK). Hence both borides may be suitable candidates for thermal barrier coating materials. The phases are optically anisotropic, and exhibit promises for optical display systems (LED) due to their large refractive indices. Further the phases can serve as effective absorbers of visible and ultraviolet radiation and thus have the potential to mitigate solar heating across various energy regions.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"39 ","pages":"Pages 1067-1079"},"PeriodicalIF":6.6,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145121297","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}