Journal of Magnesium and Alloys最新文献

{"title":"Solid solution dependence of the deformation behavior in Mg–xZn (x = 0, 1, 2 wt%) alloys: In-situ neutron diffraction and crystal plasticity modeling","authors":"Huai Wang, Soo Yeol Lee, You Sub Kim, Huamiao Wang, Wanchuck Woo, Ke An","doi":"10.1016/j.jma.2024.09.006","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.006","url":null,"abstract":"The effects of solid solution on the deformation behavior of binary Mg–<em>x</em>Zn (<em>x</em> = 0, 1, 2 wt%) alloys featuring a designated texture that enables extension twinning under tension parallel to the basal pole in most grains, were investigated using in-situ neutron diffraction and the EVPSC-TDT model. Neutron diffraction was used to quantitatively track grain-level lattice strains and diffraction intensity changes (related to mechanical twinning) in differently oriented grains of each alloy during cyclic tensile/compressive loadings. These measurements were accurately captured by the model. The stress-strain curves of Mg-1 wt%Zn and Mg-2 wt%Zn alloys show as-expected solid solution strengthening from the addition of Zn compared to pure Mg. The macroscopic yielding and hardening behaviors are explained by alternating slip and twinning modes as calculated by the model. The solid solution's influence on individual deformation modes, including basal 〈a〉 slip, prismatic 〈a〉 slip, and extension twinning, was then quantitatively assessed in terms of activity, yielding behavior, and hardening response by combining neutron diffraction results with crystal plasticity predictions. The Mg-1 wt%Zn alloy displays distinct yielding and hardening behavior due to solid solution softening of prismatic 〈a〉 slip. Additionally, the dependence of extension twinning, in terms of the twinning volume fraction, on Zn content exhibits opposite trends under tensile and compressive loadings.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"54 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142377491","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":"Development of in-situ porous Ti particle reinforced Mg-Cu-Gd metallic glass matrix composite with dual-scale reinforcing structures","authors":"Yuman Shao, Dijia Zhao, Wei Guo, Shulin Lü, Jincheng Wang, Shusen Wu","doi":"10.1016/j.jma.2024.09.003","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.003","url":null,"abstract":"In the present work, the porous Ti particle reinforced Mg-based bulk metallic glass matrix composites (BMGCs) have been successfully fabricated via a novel <em>in-situ</em> dealloying method in metallic melt. A dual reinforcing structure, including large-scale between porous particles and fine-scale inside one particle, was induced to further overcome the strength-plasticity tradeoff. The microstructure and mechanical properties of such dual-scale structure-reinforced BMGCs with various volume fractions and diameters of porous Ti particles were investigated in detail. It is found that with more and finer porous Ti particles, the BMGC showed both high fracture strength (1131.9 ± 39.1 MPa) and good plastic deformability (1.48 ± 0.38 %). The characteristic of the reinforcing structure (0.48 µm) inside the porous particles was close to the plastic processing zone size of the matrix (0.1∼0.2 µm), which generated a locally ideal reinforcing structure. Such dual-scale reinforcing structures with more interfaces can effectively promote the multiplication of shear bands at the interfaces. Due to the size effect, the refined submicron matrix between the Ti ligaments inside the porous particles should exhibit homogeneous shearing events. Such delocalization behavior from the dual-scale reinforcing structures should help to enhance the role of the interactions between shear bands, thus improving the yield strength of the composites. Based on the <em>in-situ</em> dealloying method, the dual-scale structure design provides a novel approach to fabricate various BMGCs with both high strength and good plasticity.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"2 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142363263","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":"Rare-Earth based magnesium alloys as a potential biomaterial for the future","authors":"Abhishek Kumar ,&nbsp;Amit Choudhari ,&nbsp;Ashish Kumar Gupta ,&nbsp;Avinash Kumar","doi":"10.1016/j.jma.2024.10.006","DOIUrl":"10.1016/j.jma.2024.10.006","url":null,"abstract":"<div><div>Magnesium (Mg) is renowned for its unique combination of low weight, high strength-to-weight ratio, biocompatibility, and natural abundance, positioning it as an ideal candidate for biodegradable implants in biomedicine. Despite these advantageous properties, challenges such as poor formability and susceptibility to corrosion have restricted its broader application. This review critically addresses these limitations by delving into Mg's biodegradation mechanisms and the various degradation modes activated by different physiological environments. Emphasis is placed on understanding these processes to optimize Mg's utility as a biomaterial. Additionally, the transformative potential of integrating rare-earth (RE) elements into Mg alloys is explored. These elements significantly refine the microstructure, enhance mechanical properties, and improve corrosion resistance, effectively mitigating some of Mg's inherent limitations. Rare earth elements (REEs) significantly improve the mechanical properties of magnesium alloys. Cerium and lanthanum form protective oxide layers, reducing corrosion. Neodymium prevents hydrogen embrittlement, while yttrium refines grain size. The combination of REEs offers a diverse range of properties, including enhanced strength, creep resistance, high-temperature performance, corrosion resistance, ductility, and toughness. This versatility allows for tailored alloy selection for specific applications. The review also assesses the effects of various RE elements on biodegradability, cytotoxicity, and biological interaction, which are crucial for medical applications. Furthermore, the innovative realm of additive manufacturing (AM) is investigated to develop efficient Mg-RE-based biomedical implants, enabling the precise customization of implants to meet individual patient needs. Through a comprehensive evaluation of the latest research, this study projects the promising future of Mg-RE alloys as groundbreaking biomaterials poised to redefine medical implant technology with their superior mechanical and biological properties.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 3841-3897"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of LPSO phase on the high-temperature oxidation of a stainless Mg-Y-Al alloy","authors":"Zhipeng Wang ,&nbsp;Zhao Shen ,&nbsp;Yang Liu ,&nbsp;Yahuan Zhao ,&nbsp;Qingchun Zhu ,&nbsp;Yiwen Chen ,&nbsp;Jingya Wang ,&nbsp;Yangxin Li ,&nbsp;Sergio Lozano-Perez ,&nbsp;Xiaoqin Zeng","doi":"10.1016/j.jma.2024.07.009","DOIUrl":"10.1016/j.jma.2024.07.009","url":null,"abstract":"<div><div>In this study, we investigated the oxidation of the Mg-11Y-1Al alloy at 500 °C in an Ar-20%O₂ environment. Multiscale analysis showed the network-like long-period stacking ordered (LPSO) phase transformed into needle-like LPSO and polygonal Mg₂₄Y₅ phases, leading to the formation of a high-dense network of needle-like oxides at the oxidation front. These oxides grew laterally along the oxide/matrix interfaces, forming a thicker, continuous scale that effectively blocked elemental diffusion. Hence, the preferential oxidation along the needle-like LPSO is believed to accelerate the formation of a thicker and continuous oxide scale, further improving the oxidation resistance of the Mg-11Y-1Al alloy.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4045-4052"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnesium-rare earth intermetallic compounds for high performance high power aqueous Magnesium-Air batteries","authors":"Bingjie Ma ,&nbsp;Liuzhang Ouyang ,&nbsp;Jie Zheng","doi":"10.1016/j.jma.2023.06.010","DOIUrl":"10.1016/j.jma.2023.06.010","url":null,"abstract":"<div><div>Magnesium alloys are light structural materials and promising anode candidates for Mg-air batteries. However, application of Mg-air batteries is limited by poor performance at large current density and severe H₂ generation side reactions. In this study, we pioneered magnesium-rare earth Mg₃RE (RE=La, Ce, Pr and Nd) intermetallic compounds as anodes to provide higher power density and more stable discharge performance. Especially, Mg₃Pr alloy exhibits high discharge voltage of 0.91 V and peak power density of 54.4 mW cm⁻² at 60 mA cm⁻² with anodic efficiency of 60%, far better than other Mg alloys. We reveal an activation mechanism of Mg₃RE-based anodes during discharge, which significantly accelerates mass transfer process as well as enhances discharge activity. The results improve the performance of high-power Mg-air batteries and promote the value-added application of abundant rare earth elements such as Ce and La.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4191-4204"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46342042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A high-performance degradable Mg alloy suturing staple for single-arm oral stapling robot","authors":"Q.H. Wang ,&nbsp;S.S. Liang ,&nbsp;F.S. Yuan ,&nbsp;B.Y. Liu ,&nbsp;J.Z. Yu ,&nbsp;W. Wang ,&nbsp;N. Fakhar ,&nbsp;H.X. Li","doi":"10.1016/j.jma.2023.06.009","DOIUrl":"10.1016/j.jma.2023.06.009","url":null,"abstract":"<div><div>Minimally invasive surgery (MIS) robots, such as single-arm stapling robots, are key to oral and maxillofacial surgery because they overcome space constraints in the oral cavity and deep throat. However, biodegradable suture staples should be developed for the single-arm stapling robots to avoid a secondary operation. For this aim, a new type of Mg-3Zn-0.2Ca-2Ag biodegradable alloy wire was developed in this study applied as suture staples. Its tensile strength, yield strength, and elongation are 326.1 MPa, 314.5 MPa, and 19.6%, respectively. Especially, the alloy wire attains the highest yield strength value reported among all the biodegradable Mg wires, which is mainly attributed to fine grain strengthening and second phase strengthening such as Mg₂Zn₁₁ nano phase strengthening. Moreover, the corrosion rate of this alloy wire in simulated body fluid (SBF) reaches 26.8 mm/y, the highest value among all the biodegradable Mg alloy wires reported so far, which is mainly from the intensified galvanic corrosion between the Ag₁₇Mg₅₄ phase and the Mg matrix. <em>In vitro</em> studies demonstrate that the alloy wire exhibits good blood compatibility and low cytotoxicity. The cone beam computed tomography (CBCT) data shows that the suture staple made of the Mg alloy wire provides better mechanical support in the early postoperative period. From the single arm robot tests, it confirms that suture staples can close the wound tightly and remain stable over time. This research provides a good material selection for the automated suturing in oral and throat surgery robots.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4096-4118"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48798217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced corrosion resistance, antibacterial properties and osteogenesis by Cu ion optimized MgAl-layered double hydroxide on Mg alloy","authors":"Qingge Wang ,&nbsp;Chuting Liao ,&nbsp;Bo Liu ,&nbsp;Shaohui Jing ,&nbsp;Zhenhu Guo ,&nbsp;Luxin Liang ,&nbsp;Jingbo Liu ,&nbsp;Ning Li ,&nbsp;Runhua Zhou ,&nbsp;Ian Baker ,&nbsp;Hong Wu","doi":"10.1016/j.jma.2023.08.010","DOIUrl":"10.1016/j.jma.2023.08.010","url":null,"abstract":"<div><div>Magnesium (Mg) and its alloys have similar densities and elastic moduli to natural bone, making them an excellent choice for orthopedic implants. However, Mg alloys are prone to electrochemical corrosion, which often leads to implant failure and hinders the further development of Mg alloys due to bacterial infection around the implant. This work aims to enhance the corrosion resistance of Mg alloys, and provide theoretical guidance for solving the problem that Mg-based orthopedic implants are susceptible to bacterial infection and, thus, implant failure. In order to solve the corrosion problem, the Mg alloy AZ91D was used as the substrate, and a compact and uniform MgAlCu-layered double hydroxide (Mg(Cu)-LDH) was prepared on its surface using a hydrothermal method. The Mg(Cu)-LDH provides a barrier between the AZ91D and corrosive liquid, which effectively protects the Mg substrate from being corroded. The Mg(Cu)-LDH shows great cell viability for MC3T3-E1 cells. The Cu²⁺ and Mg²⁺ in the coating also endow the Mg(Cu)-LDH/AZ91D with antibacterial properties, showing strong antibacterial effects on both <em>E. coli</em> and <em>S. aureus</em> with antibacterial rates over 85%. Finally, <em>in vivo</em> results indicated that a LDH-coated implant had no systemic effects on the hearts, livers, spleens, lungs or kidneys. It was shown that 4 weeks after surgery the ratio of bone volume to tissue volume (BV/TV) of the LDH implant was 24%, which was 1.7 times that observed for AZ91D.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4174-4190"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50166147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the basal texture initiation in a randomly-oriented AZ31B alloy during cold-rolling","authors":"Wenhan Jin ,&nbsp;Baolin Wu ,&nbsp;Li Zhang ,&nbsp;Jie Wang ,&nbsp;Claude Esling ,&nbsp;Marie-Jeanne Philippe","doi":"10.1016/j.jma.2023.12.005","DOIUrl":"10.1016/j.jma.2023.12.005","url":null,"abstract":"<div><div>This study experimentally investigated basal texture initiation and development during cold rolling, in combination with simulation using a modified visco-plastic self-consistent (VPSC) model. The results showed that the orientation of extension twins exhibit a random distribution after rolling. In contrast, the matrix grains deformed by slips tend to orientate with their c-axis around the normal direction (ND). Plastic strain concentration induced by dislocation piling up at grain boundaries contributes to plastic deformation inhomogeneity, and promotes the basal–pyramidal and prismatic–prismatic binary slips. Incorporated with the interactions between the basal 〈<strong>a</strong>〉 and pyramidal 〈<strong>c</strong> + <strong>a</strong>〉 dislocations, and between the prismatic 〈<strong>a</strong>〉 dislocations, the VPSC model replicates the experimental results, effectively demonstrating the process of the basal texture initiation and development. The basal texture initiation is independent of twinning, and results mainly from the development of misorientation induced by the formation of dislocation sub-boundaries via the interaction between the basal 〈<strong>a</strong>〉 and pyramidal 〈<strong>c</strong> + <strong>a</strong>〉 dislocations.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4311-4333"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139551457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing an efficient anticorrosive system through advanced modification of plasma-electrolyzed MgO with CeNiLDH complexed with V₂O₅ nanoparticles and (2E)-But-2-enedioic acid","authors":"Mosab Kaseem ,&nbsp;Ananda Repycha Safira ,&nbsp;Mohammad Aadil ,&nbsp;Talitha Tara Thanaa ,&nbsp;Arash Fattah-alhosseini","doi":"10.1016/j.jma.2024.10.015","DOIUrl":"10.1016/j.jma.2024.10.015","url":null,"abstract":"<div><div>Advanced hybrid materials with unique properties are essential for addressing the demands of increasingly complex applications. Despite their importance, the self-assembly of layered double hydroxides (LDH) with metallic oxide nanoparticles and dicarboxylic acids is constrained by a limited understanding of the formation mechanisms and difficulties in evaluating their anticorrosive performance. In this study, we developed a novel anticorrosive system by intercalating CeNiLDH with a complex of vanadium pentoxide (V₂O₅) nanoparticles and (2E)‑but-2-enedioic acid ((2E)-BDA) on a MgO layer created through plasma-electrolysis of AZ31 Mg alloy. This system was compared with LDH films intercalated with either V₂O₅ or (2E)-BDA alone. The intercalation of LDH with V₂O₅ and (2E)-BDA resulted in a flower-like structure, while modification with their complex led to a more compact, cloud-like formation. These cloud-like structures, driven by enhanced absorption and robust hydrogen bonding throughout the hierarchical network, effectively suppress corrosion by delaying the movement of corrosive anions. This was reflected in a polarization resistance of 1.51 × 10¹⁰ Ω·cm²<strong>,</strong> which is approximately two orders of magnitude times higher than the resistance of the unmodified LDH film (3.41 × 10⁸ Ω·cm²)<strong>.</strong> Additionally, the corrosion current density (<em>i_corr</em>) of the VOBDA sample showed a decrease by four orders of magnitude compared to the unmodified LDH sample, emphasizing the superior anticorrosive performance of this hybrid coating. Density functional theory (DFT) was used to elucidate the bonding and formation mechanisms between LDH and the inorganic-organic complex.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4205-4218"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142588330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Orchestrated degradation behavior of Mg mesh for calvarial bone defect reconstruction","authors":"Ume Farwa ,&nbsp;Seongsu Park ,&nbsp;Myeongki Park ,&nbsp;Ihho Park ,&nbsp;Byoung-Gi Moon ,&nbsp;Byong-Taek Lee","doi":"10.1016/j.jma.2024.09.014","DOIUrl":"10.1016/j.jma.2024.09.014","url":null,"abstract":"<div><div>The biodegradability and biocompatibility of Mg alloys have rendered them favorable for cranial reconstruction applications. However, their rapid degradation rate has limited widespread use. In this study, we developed a Mg alloy -based mesh designed for calvarial bone defect reconstruction. We modulated the bone formation through the controlled degradation rate of the Mg alloy mesh. To achieve this, the Mg alloy mesh was coated with 2 types of coatings: Zn-d/Ca-P and Zn-d/Ca-P/P. Our findings revealed that, in comparison to the uncoated Mg alloy, both Zn-d/Ca-P and Zn-d/Ca-P/P coatings significantly reduced the degradation rate. The biocompatibility of the coated meshes improved markedly. With the Zn-d/Ca-P coating, there was not only an augmentation in the osteogenic potential of the Mg mesh but also an enhancement in angiogenic capacity. These meshed Mg samples were subsequently implanted into calvarial defects in rats. Bone regeneration was accelerated in specimens treated with Zn-d/Ca-P and Zn-d/Ca-P/P coatings compared to those with the bare Mg mesh. Furthermore, the in vivo assessments indicated that the coated meshes promoted angiogenesis. Nonetheless, the degradation rate of the Zn-d/Ca-P/P coating was slower than that of Zn-B/Ca-P. For applications requiring prolonged mechanical support, the Zn-d/Ca-P/P coating on Mg alloy is recommended, whereas the Zn-d/Ca-P coating is advisable for rapid regeneration where extended mechanical support is not critical.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4259-4277"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}