IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-11 DOI: 10.1016/j.vacuum.2025.114404

Taejeong An, Muthu Shanmugam Mannan, Ji-Hwan Cha, Changheui Jang

引用次数: 0

High-sensitivity room-temperature NH3 detection of SnO2/SnS2 nanocomposites by modulating annealing temperature 调节退火温度的SnO2/SnS2纳米复合材料的室温高灵敏度NH3检测

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-10 DOI: 10.1016/j.vacuum.2025.114401

Meihua Li, Weiyi Li

{"title":"High-sensitivity room-temperature NH3 detection of SnO2/SnS2 nanocomposites by modulating annealing temperature","authors":"Meihua Li, Weiyi Li","doi":"10.1016/j.vacuum.2025.114401","DOIUrl":"10.1016/j.vacuum.2025.114401","url":null,"abstract":"<div><div>In this study, SnO<sub>2</sub>/SnS<sub>2</sub> nanomaterials were successfully prepared by hydrothermal method combined with gradient annealing process. XRD analysis showed that the materials formed a hexagonal SnS<sub>2</sub> and tetragonal SnO<sub>2</sub> biphasic coexisting structure with a significant increase in the crystallinity after annealing at 300 °C. SEM/TEM characterization showed that SnO<sub>2</sub> nanoparticles were uniformly anchored on the surface of SnS<sub>2</sub> nanosheets to form a three-dimensional hierarchical heterostructure. XPS testing confirms the presence of stabilized Sn<sup>4+</sup>/S<sup>2−</sup> chemical states and abundant oxygen vacancy defects on the material surface. Thanks to the synergistic effect of the heterojunction interface and oxygen vacancies, the sensor exhibits high sensitivity (<em>R</em><sub>a</sub>/<em>R</em><sub>g</sub> = 12.6), high selectivity and fast response to 100 ppm NH<sub>3</sub> at room temperature (25 °C ± 2 °C), with a lower detection limit of 10 ppm. In this study, by adjusting the annealing temperature, we realized the efficient detection of NH<sub>3</sub> at room temperature.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114401"},"PeriodicalIF":3.8,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107243","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}

引用次数: 0

High performance IWO thin films deposited with a new hybrid technology for solar cell applications 高性能IWO薄膜沉积与新的混合技术的太阳能电池应用

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-09 DOI: 10.1016/j.vacuum.2025.114395

En-Naji Zakariae , Bes Alexandre , Carroy Perrine , Haacke Mathias , Lacoste Ana

{"title":"High performance IWO thin films deposited with a new hybrid technology for solar cell applications","authors":"En-Naji Zakariae , Bes Alexandre , Carroy Perrine , Haacke Mathias , Lacoste Ana","doi":"10.1016/j.vacuum.2025.114395","DOIUrl":"10.1016/j.vacuum.2025.114395","url":null,"abstract":"<div><div>Transparent conductive oxides (TCOs) are essential for solar cell technologies, providing high optical transmission and electrical conductivity. This paper proposes a new Hybrid Plasma Deposition (HPD) technique for TCOs, that combines a very low-pressure microwave plasma and DC thermal evaporation. This technique has not yet been reported and the first results are presented here as a proof of concept. Plasma diagnostic indicates ion energies below 30 eV, significantly lower than those of conventional sputtering, offering a promising route to a new deposition technique compatible with sensitive substrates. The deposited IWO (Tungsten-doped Indium Oxide) films exhibit uniformly crystallized grains, optical transmission greater than 80 % in the visible spectrum, low resistivity of 3.21 × 10<sup>−4</sup> Ωcm and mobility of 41 cm<sup>2</sup> × V<sup>-1 × s<sup>-1</sup></sup> with a corresponding carrier concentration of 4.76 × 10<sup>20</sup> cm<sup>−3</sup>. After annealing at 200 °C, the resistivity slightly increased to 3.8 × 10<sup>−4</sup> Ωcm, while mobility improved significantly to 86 cm<sup>2</sup> × V<sup>-1</sup> × s<sup>-1</sup>, with a carrier concentration of 1.90 × 10<sup>20</sup> cm<sup>−3</sup> making these films highly suitable for photovoltaic applications. These films were integrated into silicon heterojunction (SHJ) solar cells as transparent electrodes. The solar cells exhibited a high efficiency of 23.89 %, demonstrating the potential of HPD in enhancing solar cell performance.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114395"},"PeriodicalIF":3.8,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931309","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}

引用次数: 0

Influence of ZrB2 additions on mechanical and chemical properties of biomedical magnesium alloys ZrB2添加量对医用镁合金力学和化学性能的影响

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-09 DOI: 10.1016/j.vacuum.2025.114391

S. Teslia , M. Teslia , M. Vterkovkiy , M. Kovalenko , K. Shevchyck , A. Chernov , G. Vasyliev , I. Solodkyi , O. Stasiuk , T. Soloviova

{"title":"Influence of ZrB2 additions on mechanical and chemical properties of biomedical magnesium alloys","authors":"S. Teslia , M. Teslia , M. Vterkovkiy , M. Kovalenko , K. Shevchyck , A. Chernov , G. Vasyliev , I. Solodkyi , O. Stasiuk , T. Soloviova","doi":"10.1016/j.vacuum.2025.114391","DOIUrl":"10.1016/j.vacuum.2025.114391","url":null,"abstract":"<div><div>This study shows for the first time the effect of adding ZrB<sub>2</sub> particles to magnesium alloys WE43 and ZK61 on sinterability, mechanical properties, and corrosion resistance. The powder mixtures of ZK61-10 wt%ZrB<sub>2</sub> and WE43-10 wt%ZrB<sub>2</sub> were sintered to a relative density of 95 % and 98 %, respectively. The dense composites were characterized using X-ray diffraction and electron microscopy. The mechanical properties under compression conditions, and corrosion resistance using “<em>in-vitro</em>” test in Hank solution were studied. A mechanism of ZrB<sub>2</sub> particle migration through Y metal “bridges” into the grain body of WE43 alloy was proposed, which leads to improved sinterability of the WE43-10 wt%ZrB<sub>2</sub> composite and improved its mechanical properties and corrosion resistance. In general, adding ZrB<sub>2</sub> significantly enhanced WE43 compressive strength by 18 % and ZK61 by 17 % and reduced the corrosion rate by 46 % and 32 %, respectively. Fracture surface analysis showed that WE43-10 wt%ZrB<sub>2</sub> composite has transcrystalline fracture behavior. In contrast, the ZK61-10 wt%ZrB<sub>2</sub> composite has intercrystallite fracture behavior. The fracture behavior and corrosion resistance are substantiated regarding the material nature and microstructure developed during the SPS.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114391"},"PeriodicalIF":3.8,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948131","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}

引用次数: 0

Zeolitic imidazolate framework-8 microcrystals as photocatalysts for acid red 27 food dye and tetracycline drug degradation 沸石咪唑酸框架-8微晶降解酸性红27食用染料和四环素药物的光催化剂

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-08 DOI: 10.1016/j.vacuum.2025.114397

Thangapandi Chellapandi , Nandhakumar Eswaramoorthy , N. Dineshbabu , Senthilkumar Nallusamy , Krzysztof Pikon , Mahesh Ganesapillai

{"title":"Zeolitic imidazolate framework-8 microcrystals as photocatalysts for acid red 27 food dye and tetracycline drug degradation","authors":"Thangapandi Chellapandi , Nandhakumar Eswaramoorthy , N. Dineshbabu , Senthilkumar Nallusamy , Krzysztof Pikon , Mahesh Ganesapillai","doi":"10.1016/j.vacuum.2025.114397","DOIUrl":"10.1016/j.vacuum.2025.114397","url":null,"abstract":"<div><div>The widespread application of azo dyes in the textile and pharmaceutical industries pose a significant threat to environment and health concerns. Addressing these issues require an efficient, cost-effective, and environmentally sustainable approach to mitigate water pollution. In this study, zeolitic imidazolate framework-8 (ZIF-8) was synthesized <em>via</em> a simple, in-situ, solvo-thermal method and evaluated its photocatalytic efficiency in degrading Acid Red 27 (AR27) dye and tetracycline (TC) drug. The synthesized ZIF-8 was comprehensively characterized using various techniques, including SEM, TEM, XPS, FT-IR, XRD, and UV–Vis spectroscopy. Photocatalytic degradation experiments demonstrated that ZIF-8 exhibited remarkable degradation efficiencies of 84.1 % for AR27 and 96.48 % for TC. Kinetic analysis revealed that the degradation of both dye and antibiotic followed a pseudo-first-order reaction model. Hence, ZIF-8 could be a competent photocatalyst for the removal of variety of industrial effluents i.e. organic dyes and pharmaceutical drugs.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114397"},"PeriodicalIF":3.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929253","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}

引用次数: 0

Dynamic recrystallization and dynamic precipitation mechanism of Mg-Gd-Y-Zr alloy during hot compression

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-08 DOI: 10.1016/j.vacuum.2025.114400

Dongzhen Wang , Xiaoya Chen , Quanan Li , Hongxi Zhu , Zhenliang Zhao , Qiansen Liu , Tianyao Guo

{"title":"Dynamic recrystallization and dynamic precipitation mechanism of Mg-Gd-Y-Zr alloy during hot compression","authors":"Dongzhen Wang , Xiaoya Chen , Quanan Li , Hongxi Zhu , Zhenliang Zhao , Qiansen Liu , Tianyao Guo","doi":"10.1016/j.vacuum.2025.114400","DOIUrl":"10.1016/j.vacuum.2025.114400","url":null,"abstract":"<div><div>This paper investigated the hot - compression deformation behavior of Mg-12Gd-0.5Zr and Mg-12Gd-4Y-0.5Zr alloys at 350–500 °C and 0.002–1 s<sup>−1</sup>. The dynamic recrystallization (DRX) critical strain model of the alloy was established, the critical strain of DRX was calculated, and its accuracy was verified by TEM characterization. Y addition promoted DRX nucleation and growth through continuous dynamic recrystallization (CDRX), weakening the (0001) basal texture. Y reduced the DRX critical strain, triggering earlier DRX. At 400 °C/0.002 s<sup>−1</sup>/ε = 0.7, the main nucleation mechanism for both alloys were CDRX. Discontinuous dynamic recrystallization (DDRX) only formed single-layer DRX grains at deformed grain boundaries initially and aided CDRX nucleation. A schematic of the DRX nucleation-growth mechanism was created. Dynamic precipitates formed before DRX, nucleating at deformed grain boundaries. After Y addition, the alloy's dynamic precipitates were the face - centered cubic β-Mg<sub>5</sub>(Gd, Y) phase. The number of precipitates increased, forming clusters on grain boundaries. They hindered dislocation motion, pinned grain boundaries, promoted DRX nucleation, and restricted DRX grain growth.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114400"},"PeriodicalIF":3.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943024","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}

引用次数: 0

Design and evaluation of graphene reinforced polymer nanocomposite EMI shielding effectiveness through component level studies 基于组分水平研究的石墨烯增强聚合物纳米复合材料电磁干扰屏蔽效能设计与评价

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-08 DOI: 10.1016/j.vacuum.2025.114396

K.V. Lavanya , Sasidhar Gurugubelli , Jyothi Budida , Premkumar G , Javed Syed

{"title":"Design and evaluation of graphene reinforced polymer nanocomposite EMI shielding effectiveness through component level studies","authors":"K.V. Lavanya , Sasidhar Gurugubelli , Jyothi Budida , Premkumar G , Javed Syed","doi":"10.1016/j.vacuum.2025.114396","DOIUrl":"10.1016/j.vacuum.2025.114396","url":null,"abstract":"<div><div>Graphene-reinforced polymer nanocomposites, particularly those incorporating graphene, are emerging as effective materials for enhancing electromagnetic (EM) shielding in conventional concrete walls, which is vital for applications such as anechoic chambers. This research uniquely assesses how the addition of this composite influences the wave absorption and impedance matching characteristics of concrete, aiming to improve shielding effectiveness against electromagnetic interference (EMI). The study finds that while higher concentrations of graphene generally enhance EMI shielding, the 2.5 % PU/graphene composite significantly reduces shielding effectiveness at certain frequencies, particularly within the 10–11 GHz range. It highlights a critical limitation at a relatively low loading level, despite the overall improved performance observed through the simulation studies with deeper embedding and multi-layer nanocomposites. The findings highlight the necessity for a detailed approach to practical implementations in structural electromagnetic shielding, as the calculations indicate that PU/graphene-modified concrete walls may provide enhanced electromagnetic wave absorption.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114396"},"PeriodicalIF":3.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931319","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}

引用次数: 0

Reactive species dynamics and bactericidal mechanisms in cold atmospheric pressure plasma with gas admixtures 含气体外加剂的冷大气压等离子体中的反应态动力学和杀菌机制

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-08 DOI: 10.1016/j.vacuum.2025.114393

Vishakha Bende , Vandan Nagar , P.S.N.S.R. Srikar , Reetesh K. Gangwar , Devendra Bhale , R.L. Bhardwaj , Rajib Kar

{"title":"Reactive species dynamics and bactericidal mechanisms in cold atmospheric pressure plasma with gas admixtures","authors":"Vishakha Bende , Vandan Nagar , P.S.N.S.R. Srikar , Reetesh K. Gangwar , Devendra Bhale , R.L. Bhardwaj , Rajib Kar","doi":"10.1016/j.vacuum.2025.114393","DOIUrl":"10.1016/j.vacuum.2025.114393","url":null,"abstract":"<div><div>This study investigates reactive species dynamics in cold atmospheric pressure plasma (CAPP) and bacterial inactivation pathways in <em>Escherichia coli (E.coli)</em> and <em>Staphylococcus aureus (S.aureus)</em> using a Tesla coil-based radiofrequency (10 MHz) plasma jet with four gas compositions: Ar, Ar-O<sub>2</sub>, Ar-N<sub>2</sub>, and Ar-dry air (3:1) at a 10 mm treatment distance. Optical emission spectroscopy identified •OH and OI, while absorption and fluorescence spectroscopy quantified H<sub>2</sub>O<sub>2</sub> and •OH. UV radiation and O<sub>3</sub> were also measured. Electron temperature (T<sub>e</sub>) and density (n<sub>e</sub>) were determined via collisional-radiative modeling and Stark broadening analysis. Pure Ar plasma achieved complete inactivation, whereas gas admixtures, with lower T<sub>e</sub> and n<sub>e</sub>, reduced reactive species production. Despite its thicker peptidoglycan layer, <em>S.aureus</em> was more susceptible than <em>E.coli</em>, likely due to <em>E.coli</em>'s outer membrane limiting radical penetration. Ar-N<sub>2</sub> caused a 3-log reduction in <em>S.aureus</em> but only 2-log in <em>E.coli</em>, while Ar-O<sub>2</sub> and Ar-dry air had minimal effects on <em>E.coli</em> but reduced <em>S.aureus</em> by 1-log and 2-log, respectively. H<sub>2</sub>O<sub>2</sub> and UV played key roles in oxidative stress and DNA damage, with H<sub>2</sub>O<sub>2</sub> facilitating intracellular •OH generation via Fenton reactions. Pure Ar plasma demonstrated strong bactericidal efficiency at 10 mm, driven by long-lived species (H<sub>2</sub>O<sub>2</sub>, UV) essential for contactless treatment.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114393"},"PeriodicalIF":3.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068377","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}

引用次数: 0

Investigation on the transport mechanism of gas molecules in porous graphene membranes

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-08 DOI: 10.1016/j.vacuum.2025.114389

Jun Zhang, Chenhui Liu, Rui Huang, Xudi Wang, Qing Cao

{"title":"Investigation on the transport mechanism of gas molecules in porous graphene membranes","authors":"Jun Zhang, Chenhui Liu, Rui Huang, Xudi Wang, Qing Cao","doi":"10.1016/j.vacuum.2025.114389","DOIUrl":"10.1016/j.vacuum.2025.114389","url":null,"abstract":"<div><div>Porous Graphene Membranes (PGM) show great promise for ultra-sensitive gas leak detection, gas separation, and filtration. Unlike traditional micro/nanochannels, PGM contains nanopores with single-atom thickness. Gas transport in PGM combines surface diffusion (SD) and direct transport (DT) under atomic-scale confinement. Classical rarefied gas theories cannot explain these processes. This study uses an extremely low flow setup to measure PGM's gas transport properties. Molecular dynamics simulations analyze DT and SD mechanisms. The effects of nanopore diameter, pressure, temperature, and gas species on the ratio of total flux to DT flux (Ratio-T/DT) are systematically investigated. Results reveal that PGM's gas transport deviates from Graham's law. As the nanopore diameter varies from 0.6 to 9 nm, Ratio-T/DT exhibits three distinct regimes: dominated by (1) two-dimensional motion and energy barrier (0.6–0.8 nm), (2) steric effect (0.8–2 nm), and (3) direct transport (>2 nm). This study reveals the gas transport mechanisms within PGM and provides insights for expanding its applications.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114389"},"PeriodicalIF":3.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943025","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}

引用次数: 0

Enhancing high-temperature creep resistance of additively manufactured Ti2AlNb alloys via vacuum hot isostatic pressing-induced tailoring of coherent interfaces 真空热等静压诱导共格界面裁剪增材制备Ti2AlNb合金的高温抗蠕变性能

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-05-07 DOI: 10.1016/j.vacuum.2025.114392

Yaqun Liu , Xujing Yang , Haowen Jiao

{"title":"Enhancing high-temperature creep resistance of additively manufactured Ti2AlNb alloys via vacuum hot isostatic pressing-induced tailoring of coherent interfaces","authors":"Yaqun Liu , Xujing Yang , Haowen Jiao","doi":"10.1016/j.vacuum.2025.114392","DOIUrl":"10.1016/j.vacuum.2025.114392","url":null,"abstract":"<div><div>This study investigates the microstructural evolution and creep behavior of additively manufactured Ti-22Al-25Nb intermetallic alloys under different post-processing conditions. Selective laser melting (SLM) was employed to fabricate samples, followed by two distinct heat treatments (HT1: 990°C-1h with water quenching + 800°C-2h with air cooling; HT2: hot isostatic pressing at 1200 °C/150 MPa + aging). Microstructural characterization revealed that the HT1-treated sample exhibited a semi-coherent B2/O interface structure with submicron pores and localized compositional segregation, resulting in interfacial dislocation pile-ups and stress concentrations. In contrast, the HIP-treated HT2 counterpart demonstrated fully coherent B2/O interfaces with negligible lattice mismatch (Δa/a <2 %) in a eutectic-like multi-phase configuration combining coarse O-phase plates and a refined B2 matrix, eliminating porosity and homogenizing phase distribution. Creep tests at 650 °C/150 MPa showed that the HT2 sample achieved a minimum creep rate of 6 × 10<sup>−5</sup> h<sup>−1</sup>, nearly three times lower than the HT1 one (1.7 × 10<sup>−4</sup> h<sup>−1</sup>) at identical conditions, due to the coherent interface-mediated dislocation glide and the suppressed cavity nucleation. The study highlights the critical role of interfacial coherency and defect elimination in enhancing high-temperature creep resistance, providing a microstructure-guided strategy for optimizing additively manufactured Ti<sub>2</sub>AlNb alloys for aerospace applications.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"239 ","pages":"Article 114392"},"PeriodicalIF":3.8,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068380","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}

引用次数: 0

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