Journal of Materials Science & Technology最新文献

{"title":"In situ TiB2 nanoparticles enable uniform electrochemical dissolution for enhanced dimensional precision and capillarity in additively manufactured micro inner channels (Φ 1.4 mm)","authors":"Jierui Mu, Qianglong Wei, Chu Lun Alex Leung, Qiang Lu, Zijue Tang, Zhenyang Gao, Pengyuan Ren, Tengteng Sun, Yakai Xiao, Yi Wu, Yongbing Li, J.P. Oliveira, Jian Lu, Haowei Wang, Hongze Wang","doi":"10.1016/j.jmst.2025.08.043","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.043","url":null,"abstract":"Electrochemical polishing (ECP) alone cannot overcome the limitations in inner surface roughness and dimensional accuracy imposed by heterogeneous dissolution behaviors in complex additively manufactured (AMed) parts, highlighting the need for material-based improvements. Here, we report a nanoparticle-enabled AMed alloy that intrinsically promotes uniform electrochemical dissolution. Using computed tomography (CT) slices analysis, <em>in situ</em> synchrotron X-ray imaging, and stimulation of the electrochemical dissolution process, we reveal that the improved uniform dissolution arises from grain refinement and corrosion crack deflection effects induced by in situ TiB₂ nanoparticles. The resulting increase in grain boundary density and reduction in grain size lead to a more randomized crystallographic orientation and a homogenized grain-related corrosion potential across the melt pool (MP). The decreased potential variation in depth, diffusion-controlled dissolution, coupled with enhanced lateral corrosion crack propagation, significantly improves dissolution uniformity in AMed TiB₂/AlSi10Mg. After ECP, the AMed TiB₂/AlSi10Mg heat pipes (Φ 1.4 mm) exhibit a reduction in inner surface roughness from 5.4 to 2.2 μm and in roundness tolerance from 59 to 31 μm, relative to the as-built AlSi10Mg counterpart. Moreover, a 218% increase in capillary action suggests enhanced heat transfer performance, supporting broader applications – specific performance and functionality in other complex AMed materials and structures.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"23 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145056882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hierarchical fiber composites assembled from MOF-derived hollow polyhedral for electromagnetic wave absorption","authors":"Zirui Jia, Jiajun Li, Di Lan, Siyuan Zhang, Zhenguo Gao, Xuetao Shi, Guanglei Wu","doi":"10.1016/j.jmst.2025.08.044","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.044","url":null,"abstract":"The appropriate component design and structure regulation are efficient strategies for the generation of high-efficiency electromagnetic wave absorbers, especially for problems such as the single loss mechanism and insufficient impedance matching of transition metal sulfides in electromagnetic wave absorption. Based on this, a hierarchical 0D@1D@2D fiber composite was fabricated, inspired by the \"snowflake\" in nature. The hierarchical fiber structure integrated with multiple heterogeneous interfaces satisfies the synergistic interaction between different components, and superior EMW absorption performance is attained. The minimum reflection loss (RL_min) of the VCCC fiber composites is −43.76 dB, and the effective absorption bandwidth (EAB) is up to 6.56 GHz. Owing to the presence of multiple non-homogeneous interfaces, the 0D@1D@2D hierarchical VS₂@Co@CNTs@NCNFs (VCCC) fiber composites exhibit intense interfacial polarization, while defects in the samples emerge as polarization centers, producing dipole polarization. Synergistic effects of electrostatic spinning-derived 1D carbon nanofiber “stems”, VS₂-derived 2D nanosheets “petals”, and 0D metal Co nanoparticles “stamens”. The excellent structural design endows the VCCC fiber composites with favorable conductive loss and polarization loss, while the magnetic Co nanoparticles endow the materials with intense magnetic loss, enabling the VCCC fiber composites to exhibit favorable electromagnetic wave absorption properties. Finally, this work provides a powerful reference for the development of EMW absorbing materials based on transition metal sulfides.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"122 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-scale multicomponent B2 precipitates enable cryogenic strength-ductility synergy in a microlaminated medium entropy alloy","authors":"S.H. Gao, J.Y. Zhang, S.Y. Liu, H. Wang, W.L. Song, J. Li, G. Liu, J. Sun","doi":"10.1016/j.jmst.2025.08.041","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.041","url":null,"abstract":"Heterogeneous microlaminated BCC/FCC structures are desirable to achieve the excellent strength-ductility synergy in medium entropy alloys (MEAs). However, traditional BCC alloys have long borne intrinsic brittleness at cryogenic temperatures due to the severe restriction of dislocation multiplication and motion. Here, we demonstrate a strategy that introducing dual-scale multicomponent ordered BCC (B2) nanoprecipitates in BCC grains of a Fe-based BCC/FCC duplex microlaminated MEA. Both large B2 nanoprecipitates acting as sustainable dislocation sources at low stress levels, and small B2 nanoprecipitates promoting the dislocation nucleation and multiplication at high stress levels, together with the microbands in FCC grains, render a good combination of yield strength and uniform elongation. This dual-scale precipitates strategy offers a paradigm to develop high-performance cryogenic alloys for structural applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"28 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 nanoprecipitates on the formation of adiabatic shear band in high-entropy alloy","authors":"Xinyue Han, Jianjun Wang, Xiangxiang Tu, Shengguo Ma, Dan Zhao, Zhiming Jiao, Tuanwei Zhang, Junwei Qiao, Yong Zhang, Zhihua Wang","doi":"10.1016/j.jmst.2025.08.040","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.040","url":null,"abstract":"The adiabatic shear band is a crucial precursor of catastrophic failure for materials subjected to dynamic loading, deeply influenced by the microstructural characteristics. In this work, an optimized specimen type was first developed to make the stress state in the shear region closer to pure shear during the entire deformation. To elucidate the effect of nanoprecipitates on the formation of adiabatic shear band, dynamic shear behaviors of two L1₂ nanoprecipitate-strengthened high-entropy alloys at different temperatures (77, 293, and 873 K) were tested using a split Hopkinson pressure bar and the optimized specimen type, and the corresponding microstructure evolutions were characterized with the aid of interrupt experiments. The nanoprecipitates dispersed in a face-centered cubic matrix exhibit a significant and intriguing effect on the dynamic shear behavior of the high-entropy alloys. The subtle combination of relatively large size and advisable volume fraction of L1₂ nanoprecipitates promotes multiple strain hardening mechanisms and resists thermal softening, leading to the exceptional resistance to adiabatic shear band. Immediately after the instantaneous redissolution of L1₂ nanoprecipitates in the shear region due to the synergetic effect of high-density dislocations, adiabatic temperature rise, and high shear stress, the adiabatic shear bands induced by dynamic recrystallization form. Finally, a deformation mechanism map for the two L1₂ nanoprecipitate-strengthened high-entropy alloys is proposed at different temperatures. The systematic study looks forward to opening a potentially new avenue for the design of nanoprecipitate-strengthened high-entropy alloys with superior adiabatic shear resistance over a wide range of temperatures.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"33 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved reliability of Si-doped GeS-based selector-only memory via homopolar bond suppression and enhanced memory window","authors":"Jong Min Joo, Jun Young Choi, Dong Hyun Kim, Jin Suk Oh, Min Su Kang, Ji Eun Park, Sim Hun Yuk, Tae Geun Kim","doi":"10.1016/j.jmst.2025.09.005","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.005","url":null,"abstract":"Selector-only memory (SOM) devices have emerged as promising candidates for next-generation memory technologies. Their unique architecture enables cross-point array integration without requiring an external selector, while offering faster operation speeds and lower power consumption compared to conventional storage-class memory (SCM) devices. Despite these advantages, amorphous chalcogenide-based SOM devices face several challenges that hinder commercialization, including poor thermal stability, threshold voltage (<em>V</em>_th) drift, a limited memory window, and degradation in electrical performance. In this study, we address these limitations by systematically investigating charge trapping phenomena based on the Poole–Frenkel conduction mechanism. We also compare the material properties of previously reported chalcogenide compounds to guide the design of a high-performance SOM device. GeS was selected as the active material due to its higher bonding energy and lower trap density compared to GeTe and GeSe. To further enhance device performance, Si doping was employed to suppress unstable S–S homopolar bonds, thereby reinforcing the amorphous network and improving both endurance and the memory window. The resulting Si-doped GeS-based SOM device exhibited excellent endurance (&gt; 2 × 10⁸ cycles) and long retention times (&gt; 10⁷ s), attributed to improved structural integrity through strong Si–S covalent bonding. The reduction in trap density also led to an increased threshold voltage in the RESET state, enabling a wide memory window (Δ<em>V</em>_th ≈ 2.3 V). Moreover, by modulating pulse width (50–500 ns), we successfully demonstrated 2-bit multi-level cell (MLC) operation. These findings highlight that the Si-doped GeS-based SOM device combines low power consumption (≈ 50 pJ/bit), fast switching speed (≈ 100 ns), high endurance, and a wide memory window. This positions it as a strong candidate for next-generation compute express link-based SCM applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"9 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CeO2 nanocubes-embedded sulfur-deficient ZnIn2S4 flower-sphere S-scheme systems for sustainable ammonia production in pure water","authors":"Weikang Wang, Mingxiu Wang, Chuanbiao Bie, Qihang Tian, Chengzhang Zhu, Jianjun Zhang, Lele Wang, Qinqin Liu","doi":"10.1016/j.jmst.2025.09.006","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.006","url":null,"abstract":"Despite its industrial dominance, the century-old Haber–Bosch process for ammonia (NH₃) synthesis suffers from sustainability issues stemming from high energy consumption and significant carbon emissions. Photocatalytic nitrogen fixation presents a promising alternative but is hindered by rapid charge recombination, poor N₂ activation, and limited environmental adaptability. Herein, we report a sulfur vacancy (S_V)-rich ZnIn₂S₄/CeO₂ S-scheme heterojunction, synthesized via a one-pot solvothermal method, that integrates dual engineering of defects and interfacial charge modulation. Characterized by femtosecond transient absorption (fs-TA) spectroscopy and electrostatic potential calculations, the S-scheme charge transfer establishes an interfacial built-in electric field (BEF) that spatially separates charge carriers while preserving strong redox potentials. Moreover, the sulfur vacancies serve as electron-rich sites, lowering the energy barrier for N<img alt=\"triple bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/tbnd.gif\" style=\"vertical-align:middle\"/>N dissociation and extending light absorption into the near-infrared region. Isotopic labeling confirms atmospheric N₂ as the nitrogen source for NH₃ production, while <em>in situ</em> diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) monitors key *NH<em>_X</em> intermediate formation.The optimized heterojunction photocatalyst achieves an NH₃ production rate of 462 μmol g⁻¹ h⁻¹ in N₂ atmosphere and maintains 27% efficiency (123 μmol g⁻¹ h⁻¹) in air.This work provides a universal strategy for designing defect-coupled heterojunctions that reconcile high efficiency with environmental robustness, paving the way for sustainable solar-driven ammonia synthesis.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"773 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanically strong and multifunctional metallized carbon fiber reinforced poly(phenylene sulfide) composite for extreme environmental tolerant electromagnetic shielding","authors":"Hongji Duan, Xuan Ren, Yaqi Yang, Xiangmeng Li, Dingxiang Yan, Yaqing Liu, Guizhe Zhao","doi":"10.1016/j.jmst.2025.08.039","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.039","url":null,"abstract":"Designing a mechanically strong and environmentally adaptable electromagnetic interference (EMI) shielding polymer composite is highly desirable but remains a significant challenge. Herein, an efficient and multifunctional silver (Ag) decorated carbon fiber (CF) cloths reinforced poly(phenylene sulfide) (PPS) EMI shielding composite (CF-PDA@Ag/PPS) with superior mechanical strength, extreme environments tolerance, and comprehensive properties is achieved via a unique silver-sulfur coordination reaction-induced heterogeneous interface enhancement strategy. By metalizing the CF cloths with uniform Ag coating through polydopamine (PDA) intervened in-situ thermal reduction approach, a strong heterogeneous interface interaction can be established between the CF and PPS matrix through the synergies of PDA-Ag chelation and silver-sulfur coordination reaction during the thermal laminate molding process, leading to a highly efficient EMI shielding effectiveness of over 70 dB, exceptional tensile strength around 350 Mpa from −40 °C to 100 °C range, marvelous corrosion resistance and fire resistance, good anti-friction and wear-resistant properties along with the excellent low-voltage driven Joule heating performance. Our work provides a feasible strategy to develop robust and multifunctional EMI shielding composites which are highly promising for conferring durable EMI protection to next-generation electronics in extreme environments.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"16 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Giant persistent photoconductivity in electron-doped SrTiO3 triggered by release of electron-lattice coupling","authors":"Youngmin Kim, Bongwook Chung, Jeongdae Seo, Minwoo Jang, Jaichan Lee, Kitae Eom, Hyungwoo Lee","doi":"10.1016/j.jmst.2025.09.004","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.004","url":null,"abstract":"Strontium titanate has emerged as a promising material for oxide-based electronics due to its versatile electronic properties and compatibility with cation doping. This study investigates the giant persistent photoconductivity (PPC) in ultrathin La-doped SrTiO₃ (La:STO) films. We demonstrate that, unlike conventional PPC mechanisms based on oxygen vacancies, a strong and robust PPC can be triggered by activating electrons localized at Ti ions near the surface of La:STO films, where electron-lattice coupling plays a pivotal role. Specifically, for the 8-unit-cell-thick La:STO films, the Ti-related PPC of 1,276% is achieved under exposure to ultraviolet (UV) light with a wavelength of 405 nm. This PPC state remains highly stable, with full release taking more than 24 h at room temperature. Our first-principles density functional theory calculations and thickness-dependent photocurrent analysis consistently reveal that this giant PPC originates from electrons activated at Ti³⁺O₆ octahedra located near the surface of the La:STO layer. These results demonstrate that electron-lattice interactions in transition metal oxides can give rise to strong PPC characteristics, suggesting future applications in low-dimensional optoelectronic devices.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"35 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing service life of thermal barrier coating via high-current pulsed electron beam processing: Surface reconstruction of bonding layer and crystalline inheritance of ceramic layer","authors":"Xiangcheng Li, Wei Qian, Xiaofeng Zhang, Xiankai Meng, Yinqun Hua, Jinzhong Lu, Jie Cai","doi":"10.1016/j.jmst.2025.07.071","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.071","url":null,"abstract":"Thermal barrier coating (TBC) is a critical thermal protection technology in aerospace engines. Controlling the structural stability of the TBC interface and suppressing the uncontrolled growth of thermally grown oxide (TGO) have long been challenges in this field. This work introduced an innovative method to synergistically control the morphology and microstructure of the metal/ceramic interface in the TBC system using high-current pulsed electron beam (HCPEB) technology, aiming to achieve steady-state growth of TGO and extend the service life of TBC. In this study, an arc-ion-plated <em>M</em>CrAlY<em>X</em> metallic coating was modified by HCPEB irradiation to induce remelting-polishing and microstructure reconstruction of the coating surface. This treatment effectively reduced surface roughness by approximately 83% and eliminated defects such as particle clusters and microcracks. The remelted layer, with a refined microstructure and a thickness of approximately 7 μm, was used to control the genetic growth behavior of the YSZ ceramic coating deposited by electron beam-physical-vapor deposition. As a result, the ceramic coating formed with more uniform columnar grains and reduced roughness. Thermal cycling oxidation testing at 1100°C demonstrated that the HCPEB-modified TBC produced a dense, stable Al₂O₃-based TGO layer at the interface, improving oxidation resistance and suppressing spallation. The enhanced structural integrity and interface stability of the modified TBC system contribute to a significantly extended thermal-cycling lifespan, highlighting the effectiveness of HCPEB in advancing TBC for high-temperature applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"35 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced dynamic shear properties of FeNiCoAl-based high-entropy alloy by activation of partial-related structures","authors":"Aomin Huang, Carlos J. Ruestes, Mingjie Xu, Haoren Wang, Marc A. Meyers, Enrique J. Lavernia","doi":"10.1016/j.jmst.2025.07.072","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.072","url":null,"abstract":"Nanoscale twins and a 9R structure (a periodically faulted rhombohedral configuration) were directly observed under microscopy in a medium/high stacking-fault energy face-centered cubic high-entropy alloy (HEA) subjected to high strain rate shear deformation, and demonstrated to be related to a special activity of partial dislocations, namely, the cooperative activation of partial dislocations, which is manifested by detwinning when the alloy is subjected to conditions that involve a high local stress at a high strain rate. These mechanisms significantly enhance work-hardening behavior, providing a new pathway for designing high-toughness HEAs. Furthermore, the significant grain refinement associated with dynamic recrystallization increases the likelihood of partial-dislocation-related defects. This promotes the direct formation of the 9R phase through the sequential activation of partial dislocations from grain boundaries, leading to continuous strain hardening following the onset of shear localization. The corresponding formation mechanisms are elucidated through molecular dynamics simulations.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"28 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}