Journal of Materials Science最新文献_第6页

Modulator-assisted solvothermal synthesis of CeO2 derived from Ce-BDC MOFs: effect on oxygen evolution reaction performance 调节剂辅助溶剂热合成Ce-BDC mof衍生CeO2：对析氧反应性能的影响

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-01 DOI: 10.1007/s10853-025-11482-5

Doğan Çirmi, Titus Otamayomi Moses, Abdoul Salam Issiaka Ibrahim, Özkan Görmez, Belgin Gözmen

{"title":"Modulator-assisted solvothermal synthesis of CeO2 derived from Ce-BDC MOFs: effect on oxygen evolution reaction performance","authors":"Doğan Çirmi, Titus Otamayomi Moses, Abdoul Salam Issiaka Ibrahim, Özkan Görmez, Belgin Gözmen","doi":"10.1007/s10853-025-11482-5","DOIUrl":"10.1007/s10853-025-11482-5","url":null,"abstract":"<div><p>In this study, the morphological, structural, and electrocatalytic properties of Ce-BDC-based metal–organic framework (MOF) materials synthesized under various conditions were comprehensively investigated. Four types of structures Ce-BDC, Ce-BDC-P, Ce-BDC*, and Ce-BDC*-P were prepared using a solvothermal method. The synthesis was carried out both under ambient and pressurized (P) conditions, and with or without acetic acid used as a modulator (*). To optimize the synthesis parameters, the amount of acetic acid (12.5, 25, and 50 Meq) was systematically varied, and among the samples, Ce-BDC*-50-P (synthesized under pressurized conditions with 50 Meq of acetic acid) was identified as exhibiting the highest electrocatalytic performance. Structural characterization was carried out using XRD, FT-IR, SEM–EDS, XPS, and BET analyses, which revealed the influence of synthesis parameters on crystal structure, morphology, and porosity. Electrochemical performance evaluations were conducted in 0.5 M H<sub>2</sub>SO<sub>4</sub> solution using a standard three-electrode system. Among the synthesized samples, Ce-BDC*-50-P demonstrated the best oxygen evolution reaction (OER) activity, with a low overpotential of ~ 290 mV and a Tafel slope of 95.7 mV dec<sup>−1</sup>. Its superior catalytic activity was attributed to a high surface area (164 m<sup>2</sup> g<sup>−1</sup>) and a low charge transfer resistance (12.37 Ω·cm<sup>2</sup>). These findings suggest that the modulator-assisted pressurized synthesis approach significantly enhances the electrocatalytic activity of Ce-MOF materials by promoting their partial transformation into CeO<sub>2</sub> derivatives, thus improving their performance in OER applications.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19615 - 19632"},"PeriodicalIF":3.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315873","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}

引用次数: 0

Effect of trace Sn content on solidification microstructure of Al-Bi monotectic alloys 微量Sn含量对Al-Bi合金凝固组织的影响

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-01 DOI: 10.1007/s10853-025-11539-5

Bing Gao, Lili Zhang, Hongxiang Jiang, Jiuzhou Zhao, Jie He

{"title":"Effect of trace Sn content on solidification microstructure of Al-Bi monotectic alloys","authors":"Bing Gao, Lili Zhang, Hongxiang Jiang, Jiuzhou Zhao, Jie He","doi":"10.1007/s10853-025-11539-5","DOIUrl":"10.1007/s10853-025-11539-5","url":null,"abstract":"<div><p>Solidification experiments were performed to explore the effect of trace amount of micro-alloying element Sn on the solidification microstructure of Al-Bi monotectic alloy. Bi-rich particles are refined by the addition of micro-alloying element Sn. The refining effect increases first and then almost keeps unchanged with the Sn addition level. An analytical model is proposed to determine the interfacial energy <i>γ</i><sub>L1/L2</sub> between the Al-rich melt (L<sub>1</sub> phase) and Bi-rich liquid droplets (L<sub>2</sub> phase) in an Al-Bi monotectic alloy melt with the addition of micro-alloying element Sn based on Gibbs absorption isotherm. Calculation results demonstrate that the micro-alloying element Sn shows a strong segregation potency to the interface between the two liquid phases and decreases <i>γ</i><sub>L1/L2</sub>. The variation in <i>γ</i><sub>L1/L2</sub> with the Sn addition level shows a similar tendency as the average size of Bi-rich particles. The critical Sn amount to refine the Bi-rich liquid droplets formed during the liquid–liquid phase transformation is determined.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 42","pages":"20817 - 20827"},"PeriodicalIF":3.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341214","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}

引用次数: 0

Single-atom catalysts as high-efficiency lubricant additives for wear mitigation in alkane environments 单原子催化剂在烷烃环境中作为高效润滑油添加剂的研究

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-01 DOI: 10.1007/s10853-025-11576-0

Tianyu Fang, Kaishuo Wang, Qingpeng Guo, Dejian Zhang, Huilai Sun, Yong Wan

引用次数: 0

Direct ink writing PEDOT:PSS-based interfaces with high stretchability and strong adhesion for flexible electronics 直接墨水书写PEDOT：基于pss的接口，具有高拉伸性和强附着力，适用于柔性电子产品

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11470-9

Guiqun Liu, Pengwei Jiao, Qisheng Ma, Ding Li, Wenli Wu, Min Xue, Xiaoli Zhang

{"title":"Direct ink writing PEDOT:PSS-based interfaces with high stretchability and strong adhesion for flexible electronics","authors":"Guiqun Liu, Pengwei Jiao, Qisheng Ma, Ding Li, Wenli Wu, Min Xue, Xiaoli Zhang","doi":"10.1007/s10853-025-11470-9","DOIUrl":"10.1007/s10853-025-11470-9","url":null,"abstract":"<div><p>Conducting polymer-based bioadhesive conductive interface (CP-BCI) are widely used in bioelectronics, strain sensors due to their ease of processing and fabrication, excellent electrical, and biocompatibility. However, CP-BCI is conventionally fabricated using techniques such as cast molding, screen printing, electrochemical patterning, and photolithography. These traditional methodologies often encounter challenges in achieving precise control and the generation of intricate patterns, thus limiting the widespread application and evolution of these materials. Direct ink writing has become an emerging research hotspot for processing CP-BCI due to its high degree of programmability, precision, and process stability. Herein, biointerface inks with enhanced electrical conductivity and high adhesion have been specifically developed for direct ink printing. The development of this novel ink involves the incorporation of PAM into the PVA matrix to promote composite cross-linking, coupled with the integration of PEDOT:PSS conductive nanofibers within the matrix, thereby yielding the PEDOT:PSS-PAM-PVA biointerface ink. The innovative ink showcases exceptional printability, high electrical conductivity (0.24 ± 0.053 S m<sup>−1</sup>), high adhesion (54 ± 2.7 kPa), and a well-balanced mechanical profile, featuring a maximum stress of 51 kPa and an elongation at break of 369%. This research introduces the novel direct writing ink, promoting advancements in the manufacturing of flexible electronics.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 40","pages":"18933 - 18945"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256679","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}

引用次数: 0

Synergistic effects of deep cryogenic treatment and aging on microstructure and mechanical properties of (FeCoNi)86Al7Ti7 high-entropy alloy 深冷处理和时效对（FeCoNi）86Al7Ti7高熵合金组织和力学性能的协同影响

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11530-0

Xinyu Tian, Feng Jiang, Chenyu Xu, Chenlei Shen, Zhijun Dai, Junxiang Duan, Xinwei Cai, Lisha Liu, Yun Wang, Mingqin Xu, Jiaojiao Yi

{"title":"Synergistic effects of deep cryogenic treatment and aging on microstructure and mechanical properties of (FeCoNi)86Al7Ti7 high-entropy alloy","authors":"Xinyu Tian, Feng Jiang, Chenyu Xu, Chenlei Shen, Zhijun Dai, Junxiang Duan, Xinwei Cai, Lisha Liu, Yun Wang, Mingqin Xu, Jiaojiao Yi","doi":"10.1007/s10853-025-11530-0","DOIUrl":"10.1007/s10853-025-11530-0","url":null,"abstract":"<div><p>The influence of deep cryogenic treatment (DCT) on the microstructure and mechanical properties of the (FeCoNi)<sub>86</sub>Al<sub>7</sub>Ti<sub>7</sub> high-entropy alloy (HEA) was systematically investigated. Combination of aging and the DCT treatments resulted in notable changes in grain size, phase morphology, and mechanical performance of the alloy. Incorporating DCT (with two complete cycles of holding at − 196 °C for 12 h followed by warming to 30 °C for 1 h) refined the grain size and also increased the volume fraction of L1<sub>2</sub> precipitates with their size reduced and their morphology altered. Aging at 720 °C produced spherical L1<sub>2</sub> phases, while aging at 820 °C led to a cuboidal morphology, achieving a balance between mechanical strength and thermal stability. Specifically, the yield strength and ductility were improved from 1080 MPa and 5.2% to 1105 MPa and 7.1%, respectively, by DCT prior to aging at 720 °C. However, a slight decrease in ductility from 26.5 to 23.5% was observed when DCT was applied after aging at 820 °C, despite an enhanced yield strength to 1090 MPa. The findings in this study underline DCT’s role in optimizing HEA microstructure, demonstrating its capacity to refine grains, promote uniformity, and boost mechanical performance, and thereby provide valuable insights for tailoring advanced alloys to meet stringent application demands.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 40","pages":"19249 - 19266"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256742","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}

引用次数: 0

Performance of composite metal foams under cyclic loading at elevated temperatures 复合金属泡沫在高温循环载荷下的性能

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11516-y

Zubin Chacko, Gregory Lucier, Afsaneh Rabiei

{"title":"Performance of composite metal foams under cyclic loading at elevated temperatures","authors":"Zubin Chacko, Gregory Lucier, Afsaneh Rabiei","doi":"10.1007/s10853-025-11516-y","DOIUrl":"10.1007/s10853-025-11516-y","url":null,"abstract":"<div><p>This study investigates the fatigue behavior of steel-steel composite metal foams (S–S CMFs) subjected to uniaxial compression–compression cyclic loading at 23, 400, and 600 °C to identify temperature-dependent deformation mechanisms and endurance thresholds. The S–S CMFs consist of stainless-steel hollow spheres embedded within a 316<i>L</i> stainless-steel matrix, designed to provide lightweight strength and thermal resistance for extreme environments. Fatigue tests of S–S CMF demonstrated a three-stage strain evolution pattern including the initial gradual strain accumulation, extended strain stability, and abrupt failure. Notably, the longest fatigue life was observed at 400 °C, where specimens remained in Stage II for over 1.3 million cycles at 60% of plateau strength (<i>S</i><sub>pl</sub>), a phenomenon primarily attributed to dynamic strain aging (DSA), evidenced by serrated flow. At 600 °C, similar DSA-driven serrations occurred; however, thermal softening, dynamic recovery, and oxidation-induced damage significantly reduced fatigue life above a critical stress threshold. Scanning Electron Microscopy (SEM) revealed that the matrix porosity collapse and associated structural rearrangements played a critical role in fatigue deformation at all temperatures, contributing to the serrated features observed. Additionally, twinning observed at 600 °C suggests a thermally assisted cyclic hardening mechanism. In contrast, room-temperature fatigue was dominated by slip-driven deformation and structural porosity collapse, with smoother strain evolution. These findings highlight the complex interplay between structural (matrix porosity collapse) and dislocation-based mechanisms (DSA) in governing the fatigue response of S–S CMFs, underscoring their temperature-dependent deformation mechanisms and defining a practical endurance boundary around 50% of plateau strength.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 40","pages":"19184 - 19203"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-11516-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256681","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}

引用次数: 0

Selective catalytic reduction of NOx with ammonia over ceria-tungstate catalysts 铈钨酸盐催化剂上氨选择性催化还原NOx的研究

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11589-9

Jiahui Liu, Dong Ye, Haisong Yao, Jingyi Feng, Xiaoxiang Wang, Zhonglin Zheng, Kai Zhu

{"title":"Selective catalytic reduction of NOx with ammonia over ceria-tungstate catalysts","authors":"Jiahui Liu, Dong Ye, Haisong Yao, Jingyi Feng, Xiaoxiang Wang, Zhonglin Zheng, Kai Zhu","doi":"10.1007/s10853-025-11589-9","DOIUrl":"10.1007/s10853-025-11589-9","url":null,"abstract":"<div><p>NO<sub><i>x</i></sub>, a prominent class of air pollutants, contributes significantly to environmental problems such as photochemical smog and acid rain, posing severe risks to both ecosystem integrity and public health. Among the available mitigation strategies, selective catalytic reduction (SCR) using NH<sub>3</sub> as a reductant has emerged as the most effective and well-established technology for NO<sub><i>x</i></sub> abatement in stationary and mobile emission sources. Within the spectrum of SCR catalysts, ceria-tungstate composites have garnered considerable attention due to their broad operational temperature window, facile synthesis, and eco-friendly characteristics. This review systematically examines recent advances in NO<sub><i>x</i></sub> elimination via ceria-tungstate-based SCR catalysts, with a focus on three critical performance metrics, namely catalytic activity, N<sub>2</sub> selectivity, and poisoning resistance. We highlight state-of-the-art strategies for enhancing these properties, supported by a mechanistic analysis that provides atomic-level insights into the underlying reaction pathways. Furthermore, we discuss the interplay between catalyst physicochemical properties and SCR efficiency, offering a holistic perspective on structure–activity relationships. Finally, we outline future research directions, emphasizing the need for multiscale optimization of ceria-tungstate catalysts—spanning nanostructural engineering, mass-transfer enhancement, and techno-economic feasibility—to bridge the gap between laboratory-scale innovation and industrial deployment.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 42","pages":"20292 - 20320"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341347","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}

引用次数: 0

Improving mechanical properties of dissimilar transient liquid phase bonded joint between inconel 718 alloy and 316LN steel by laser cladding with IN718 powder 用激光熔覆IN718粉末改善inconel 718合金与316LN钢异种瞬态液相结合接头的力学性能

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11562-6

Xinning Yang, Bo Zhang, Qianying Guo, Ran Ding, Qianying Guo, Weiwei Zhu, Chenxi Liu, Yongchang Liu

{"title":"Improving mechanical properties of dissimilar transient liquid phase bonded joint between inconel 718 alloy and 316LN steel by laser cladding with IN718 powder","authors":"Xinning Yang, Bo Zhang, Qianying Guo, Ran Ding, Qianying Guo, Weiwei Zhu, Chenxi Liu, Yongchang Liu","doi":"10.1007/s10853-025-11562-6","DOIUrl":"10.1007/s10853-025-11562-6","url":null,"abstract":"<div><p>This study prepares IN718 alloy cladding layers on 316LN stainless steel substrates via laser cladding, followed by transient liquid phase (TLP) bonding to IN718 superalloy using BNi-2 paste. The effects of laser cladding process and bonding time on the mechanical properties of TLP joints were investigated. The results indicate that through laser cladding of IN718 alloy, Ti elements from the cladding layer react with N elements from the base metal to form the fine TiN particles, which significantly inhibits formation of the harmful BN phase at the interface, thereby markedly improving the interfacial bonding state and mechanical properties of TLP joints. When bonded at 1100 °C for 15 min, the laser-clad joint demonstrated 82.5% higher ultimate tensile strength and a remarkable 1152.8% improvement in elongation over the untreated joint. Unlike conventional TLP joints failing at the ISZ/DAZ-316LN interface, the laser-clad joints exhibit strengthened interfaces due to BN suppression, shifting fracture to the 316LN base metal. Extending the bonding time to 15 min or longer enables complete isothermal solidification, significantly improving joint toughness. Insufficient bonding time promote incomplete isothermal solidification, resulting in extensive precipitation of brittle intermetallic phases within the athermal solidification zone (ASZ). These precipitates act as stress concentration sites that facilitate brittle fracture. These findings provide a valuable guidance for optimizing dissimilar metal joints in comparable materials assisted by laser cladding.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 40","pages":"19343 - 19369"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256680","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}

引用次数: 0

Effect of various quenching methods on hydrogen embrittlement resistance of a 2200 MPa press-hardened steel 不同淬火方式对2200mpa压硬化钢抗氢脆性能的影响

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11572-4

Wei Jian Chen, Zi Yao Wei, Shun Hu Zhang, Kai Yan, Jing Wen Yan, Xian Long Luo, Xing Li

{"title":"Effect of various quenching methods on hydrogen embrittlement resistance of a 2200 MPa press-hardened steel","authors":"Wei Jian Chen, Zi Yao Wei, Shun Hu Zhang, Kai Yan, Jing Wen Yan, Xian Long Luo, Xing Li","doi":"10.1007/s10853-025-11572-4","DOIUrl":"10.1007/s10853-025-11572-4","url":null,"abstract":"<div><p>Hydrogen embrittlement (HE) poses a significant barrier to the application of ultra-high strength press-hardened steels (PHS). This research presents an innovative quenching method that improves HE resistance in PHS. The results show that with the decrease in quenching speed, the sample undergoes self-tempering, and the dislocation density decreases, which leads to a reduction of diffusible hydrogen content. Notably, the sample with a lower fraction of high-angle grain boundaries and random boundaries (Σ > 29) had higher resistance to HE. This is attributed to the high-angle grain boundaries and the random boundaries acting as regions where dislocations accumulate. As hydrogen atoms migrate along these dislocations, they tend to accumulate at these sites, ultimately leading to premature fracture caused by HE. This study delivers novel perspectives on the influence of heat treatment parameters on hydrogen-induced degradation mechanisms, offering valuable guidance for designing robust high-strength steels with improved HE performance.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 40","pages":"19387 - 19404"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256743","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}

引用次数: 0

Investigation of interfacial reliability and thermal shock resistance of W/CuCrZr joints using a W–Cu functionally graded material interlayer W - cu功能梯度材料夹层W/CuCrZr接头界面可靠性及抗热震性能研究

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-09-30 DOI: 10.1007/s10853-025-11587-x

Changcheng Sang, Kaichao Fu, Dang Xu, Ruizhi Chen, Pengqi Chen, Yingwei Lu, Qiu Xu, Jigui Cheng

{"title":"Investigation of interfacial reliability and thermal shock resistance of W/CuCrZr joints using a W–Cu functionally graded material interlayer","authors":"Changcheng Sang, Kaichao Fu, Dang Xu, Ruizhi Chen, Pengqi Chen, Yingwei Lu, Qiu Xu, Jigui Cheng","doi":"10.1007/s10853-025-11587-x","DOIUrl":"10.1007/s10853-025-11587-x","url":null,"abstract":"<div><p>To address the thermal mismatch between W and CuCrZr in plasma-facing components (PFCs), the W–Cu functionally graded material (FGM) as an interlayer was incorporated into W/CuCrZr dissimilar joints through spark plasma sintering (SPS) in this study. The microstructural evolution, mechanical, and thermal performance of joints with the W–Cu FGM interlayer were systematically analyzed. Results indicate that the W/W–Cu FGM/CuCrZr joint bonded at 1000 °C exhibits strong interface bonding with the shear strength of 144.35 MPa. The compositional and thermal expansion gradients provided by the W–Cu FGM interlayer may effectively relieve thermal stress concentrations at the interface of the joints, thereby enhancing interfacial reliability and thermal shock resistance. Compared to the OFCu interlayer under the identical bonding conditions, introducing the W–Cu FGM interlayer significantly improves high-temperature thermal conductivity of the joint and maintains structural integrity after undergoing 200 thermal shock cycles at 600 °C-RT. This work confirms that the W–Cu FGM interlayer provides an effective strategy for preparing high-performance W/CuCrZr joints.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"20032 - 20047"},"PeriodicalIF":3.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316378","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}

引用次数: 0