Smart Materials and Structures最新文献_第7页

Topology optimization of smart structures to enhance the performances of vibration control and energy harvesting 优化智能结构拓扑，提高振动控制和能量收集性能

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-14 DOI: 10.1088/1361-665x/ad69ea

J P Sena, A M G de Lima, N Bouhaddi, N Kacem

{"title":"Topology optimization of smart structures to enhance the performances of vibration control and energy harvesting","authors":"J P Sena, A M G de Lima, N Bouhaddi, N Kacem","doi":"10.1088/1361-665x/ad69ea","DOIUrl":"https://doi.org/10.1088/1361-665x/ad69ea","url":null,"abstract":"With the growing interest in smart materials, the utilization of shunted piezoceramics for dynamic vibration control has gained significant attention due to their unique characteristics, such as the ability to absorb strain energy from vibrating systems and convert it into electrical energy. Designing and analyzing the behavior of structures in hybrid mitigation/harvesting conditions, considering both reliability and performance, pose challenges. This paper aims to achieve optimal design parameters for the structure by employing a multiobjective optimization approach that strikes a compromise between maximizing harvested power and minimizing structural damage. To evaluate the effectiveness of the design, topology optimization was conducted in three different cases to compare the results. By systematically exploring the design space, these cases provide insights into the influence of various parameters on the structural performance. In addition, to enhance computational efficiency, the structure was represented as a metamodel using neural networks. This approach enables rapid evaluation and prediction of the structure’s behavior, facilitating the optimization process. By integrating multiobjective optimization, topology optimization, and metamodeling techniques, this study aims to provide valuable insights into the optimal design of structures that simultaneously incorporate shunt circuitry for vibration control and energy harvesting, leading to improved performance and reliability.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"10 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178703","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

Modeling of an electro-active pseudo-trilayer based on PEDOT, a semi-conductor polymer 基于半导体聚合物 PEDOT 的电活性伪三层膜建模

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-14 DOI: 10.1088/1361-665x/ad6ab8

M Tixier, J Pouget

{"title":"Modeling of an electro-active pseudo-trilayer based on PEDOT, a semi-conductor polymer","authors":"M Tixier, J Pouget","doi":"10.1088/1361-665x/ad6ab8","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6ab8","url":null,"abstract":"Electroactive polymers are smart materials that can be used as actuators, sensors, or energy harvesters. We focus on a pseudo trilayer based on PEDOT, a semiconductor polymer: the central part consists of two interpenetrating polymers and PEDOT is polymerized on each side; the whole blade is saturated with an ionic liquid. A pseudo trilayer is obtained, the two outer layers acting as electrodes. When an electric field is applied, the cations move towards the negative electrode, making it swell, while the volume decreases on the opposite side; this results in the bending of the strip. Conversely, the film deflection generates an electric potential difference between the electrodes. We model this system and establish its constitutive relations using the thermodynamics of irreversible processes; we obtain a Kelvin–Voigt stress–strain relation and generalized Fourier’s and Darcy’s laws. We validate our model in the static case: we apply the latter to a cantilever blade subject to a continuous potential electric difference at the constant temperature. We draw the profiles of the different quantities and evaluate the tip displacement and the blocking force. Our results agree with the experimental data published in the literature.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"60 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178704","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

Negative thermal expansion in hexagonal VF3 predicted by first-principles calculation 通过第一原理计算预测六边形 VF3 的负热膨胀率

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-14 DOI: 10.1088/1361-665x/ad6bd7

Dingfeng Yang, Hongxu Xia, Yurou Tang, Mingyu Pi, Yuanyuan Li

引用次数: 0

Nondestructive evaluation of debonding in composites using air-coupled coda wave analysis and local defect resonance techniques 利用空气耦合尾波分析和局部缺陷共振技术对复合材料的脱粘进行无损评估

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-14 DOI: 10.1088/1361-665x/ad6cba

Zhiqiang Li, Jingpin Jiao, Xiangfeng Zheng, Xiaojun Hao, Cunfu He, Bin Wu

{"title":"Nondestructive evaluation of debonding in composites using air-coupled coda wave analysis and local defect resonance techniques","authors":"Zhiqiang Li, Jingpin Jiao, Xiangfeng Zheng, Xiaojun Hao, Cunfu He, Bin Wu","doi":"10.1088/1361-665x/ad6cba","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6cba","url":null,"abstract":"Low acoustic energy conversion efficiency is a major challenge for air-coupled ultrasonic technology. In the determination of the lift-off distance of air-coupled sensors, there is a balance between the acoustic energy attenuation and the difficulty of extracting defect information. In this study, an air-coupled local defect resonance (LDR) technique with coda wave analysis is proposed for the nondestructive evaluation of debonding in composites. A sensor consisting of 19 elements was used to simultaneously excite and receive ultrasonic waves. Air-coupled LDR experiments were conducted on the two types of composite structures. The effects of sensor lift-off distance and coda wave analysis on the performance of the LDR technique were investigated. It was found that the sensor lift-off distance and the coda wave analysis had a significant effect on the defect detection capability of the LDR technique. For composites, the optimal sensor lift-off distance was found to be between 3.5<italic toggle=\"yes\">λ</italic> and 5.5<italic toggle=\"yes\">λ</italic>, where <italic toggle=\"yes\">λ</italic> is the wavelength. Compared to multiple reflection echoes, the coda waves are more suitable for identifying the damage in composites. The proposed non-contact ultrasonic technique effectively reduces the required incident acoustic energy and can be used for efficient detection of debonding in composites.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"11 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178701","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

Data-driven inverse design of the perforated auxetic phononic crystals for elastic wave manipulation 用于弹性波操纵的穿孔辅助声子晶体的数据驱动反向设计

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-14 DOI: 10.1088/1361-665x/ad6c05

Hongyuan Liu, Yating Gao, Yongpeng Lei, Hui Wang, Qinxi Dong

{"title":"Data-driven inverse design of the perforated auxetic phononic crystals for elastic wave manipulation","authors":"Hongyuan Liu, Yating Gao, Yongpeng Lei, Hui Wang, Qinxi Dong","doi":"10.1088/1361-665x/ad6c05","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6c05","url":null,"abstract":"In addition to the distinctive features of tunable Poisson’s ratio from positive to negative and low stress concentration, the perforated auxetic metamaterials by peanut-shaped cuts have exhibited excellent phononic crystal (PNC) behavior as well for elastic wave manipulation. Thus they have attracted much attention in vibration suppression for dynamic applications. However, traditional structural designs of the auxetic PNCs considerably depend on designers’ experience or inspiration to fulfill the desired multi-objective bandgap properties through extensive trial and error. Hence, developing a more efficient and robust inverse design method remains challenging to accelerate the creation of auxetic PNCs and improve their performance. To shorten this gap, a new machine learning (ML) framework consisting of double back propagation neural network (BPNN) modules is developed in this work to produce desired configurations of the auxetic PNCs matching the customized bandgap. The first inverse BPNN module is trained to establish a logical mapping from the bandgap properties to the structural parameters, and then the second forward BPNN module is introduced to give the new property prediction by using the design configurations generated from the former. The error between the new predictions and the desired target properties is minimized through a limited number of iterations to produce the final optimal objective configurations. The results indicate that the perforated auxetic metamaterials behave relatively wide complete bandgap and the present ML model is effective in designing them with specific bandgaps within or beyond the given dataset. The study provides a powerful tool for designing and optimizing the perforated auxetic metamaterials in dynamic environment.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"14 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178700","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

An investigation of the electrical dynamics in electroactive polymer transducers with resistive electrodes 带电阻电极的电活性聚合物传感器的电气动态研究

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-13 DOI: 10.1088/1361-665x/ad6960

Davide Vignotto, Antonello Cherubini, Ion-Dan Sîrbu, Marco Fontana, Giacomo Moretti

{"title":"An investigation of the electrical dynamics in electroactive polymer transducers with resistive electrodes","authors":"Davide Vignotto, Antonello Cherubini, Ion-Dan Sîrbu, Marco Fontana, Giacomo Moretti","doi":"10.1088/1361-665x/ad6960","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6960","url":null,"abstract":"To pursue a variable-capacitance working principle, transducers based on soft electroactive polymers (EAPs) need deformable electrodes that match the compliance and stretchability of the EAP polymeric substrates. A variety of manufacturing procedures are available to create conductive materials that can achieve this, including solutions that can provide remarkably low resistivity. However, the simplest and most feasible options often involve the use of particle-filled (e.g. carbon-filled) polymer composites, which, while easy to produce, tend to exhibit relatively high resistivity. This high level of resistivity, combined with the inherent capacitance of EAP transducers, introduces dynamic effects in the devices electrical activation, which may affect performance. This paper investigates the impact of electrode resistivity on the electrical dynamics of EAP devices, combining continuum models and experimental validations. We use a continuum generalisation of known resistive-capacitive (RC) transmission line models to accurately predict voltage gradients on the surfaces of electrostatic transducers subject to rapidly varying voltages. We then present an experimental validation by measuring the spatial voltage distributions over carbon-based polymeric electrodes of dielectric elastomer (DE) transducers, and find a good agreement with our model predictions. We use our validated model to provide general estimates of the typical charging time and limit working frequency ranges of DE devices as a function of their dimensional scale and electrode sheet resistance. Our model provides useful indications for designing compliant electrodes in EAP transducers given target performance, or to understand the working limits of devices with given geometry and dielectric-electrode properties.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"9 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178708","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

An oscillating float-type piezoelectric-triboelectric-electromagnetic hybrid wave energy harvester used in fish-attracting lamp 用于诱鱼灯的振荡浮子型压电-三电-电磁混合波能量收集器

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-13 DOI: 10.1088/1361-665x/ad6ab9

Bowen Yang, Lipeng He, Zheming Liu, Linqiang Feng, Limin Zhang, Wei Fan

{"title":"An oscillating float-type piezoelectric-triboelectric-electromagnetic hybrid wave energy harvester used in fish-attracting lamp","authors":"Bowen Yang, Lipeng He, Zheming Liu, Linqiang Feng, Limin Zhang, Wei Fan","doi":"10.1088/1361-665x/ad6ab9","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6ab9","url":null,"abstract":"In this work, an oscillating float-type piezoelectric-triboelectric-electromagnetic hybrid wave energy harvester (PTE-HEH) used in fish-attracting lamp is proposed. It integrates three power generation methods and makes reasonable use of space, and the three power generation methods can complement each other. The theoretical analysis, simulation analysis, and experimental test of PTE-HEH are carried out. The variation trend and optimal parameters of each unit are found in the theoretical analysis and simulation. In the experiment, when the cantilever beam clamping length is 10 mm, the triboelectric mode of fluorinated ethylene propylene (FEP) film and copper foil independent triboelectric layer is adopted, and the number of magnets is 3, the output performance of PTE-HEH reaches the optimal state. When the external load resistance is 0.4 MΩ, the maximum output voltage is 69.52 V, and the maximum output power can reach 15.80 mW. It is greater than the sum of the output power of the three generators when they work alone. The power density can reach 25.99 W m<sup>−3</sup>. PTE-HEH can light 97 LEDs and power the temperature and humidity sensor. The PTE-HEH also makes the normal operation of fish-attracting lamp. The combination of PTE-HEH and fish-attracting lamp provides a new scheme for the subsequent development of self-powered fishing devices at sea.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"59 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178710","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

Arbitrary low-frequency power-splitting strategy in ferrite/piezoelectric magnetoelectric heterostructures: theory and experimental validation 铁氧体/压电体磁电异质结构中的任意低频功率分配策略：理论与实验验证

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-08 DOI: 10.1088/1361-665x/ad6961

Jitao Zhang, Juhang Gao, Dmitry Filippov, Bingfeng Ge, Qingfang Zhang, Natallia Poddubnaya, Xiaowan Zheng, Leixiang Bian, Liying Jiang and Lingzhi Cao

{"title":"Arbitrary low-frequency power-splitting strategy in ferrite/piezoelectric magnetoelectric heterostructures: theory and experimental validation","authors":"Jitao Zhang, Juhang Gao, Dmitry Filippov, Bingfeng Ge, Qingfang Zhang, Natallia Poddubnaya, Xiaowan Zheng, Leixiang Bian, Liying Jiang and Lingzhi Cao","doi":"10.1088/1361-665x/ad6961","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6961","url":null,"abstract":"Exploring low-frequency (LF) arbitrary power-splitting technologies to address the independent excitation issues of LF/VLF mechanical antennas (MA) with random distributions is challenging due to unidentified device construction and operation mechanism. In light of this, a device construction strategy for three-port magnetoelectric (ME) arbitrary power splitter in composite of ferrite/piezoelectric heterostructure, as well as theoretical model was developed. To validate the feasibility and effectiveness of the strategy, three size-tailored ME samples with length ratio of split PZT segments in 1:1, 2:1, and 3:2 were modeled, fabricated and comparatively characterized. Experimental results show that the achievable maximum power conversion efficiencies (PE) reach 52%, 71%, and 59% for three tailored ME samples, respectively, and as expected the power-splitting ratios are directly proportional to the square ratio of ME voltage coefficient (MEVC) from each port of the tailored ME samples, which are in coincidence with theory under desired operation stability and favorable experiment repeatability evaluated by uncertainties of 0.25854 V cm−1 Oe−1 and 0.32979 V cm−1 Oe−1 for each port. Therefore, a prediction of evolutionary tendency for arbitrary power splitter realization was expanded in view of our experimental observations, and a great flexibility for device future design and further optimization was also provided. Therefore, the presented LF power-splitting strategy paves the ways for arbitrary power splitter realization and enriches the multi-functional ME power electronics families, as well as enables potential applications for efficient excitations of MAs in high-permeable military underwater and civilian emergency rescue distribution long-wave communication system for practical scenarios of submarine, underground railways, tunnels and collapsed residential buildings.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"46 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945332","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

Development of a pump-jet piezoelectric swimmer with acoustic radiation actuation 开发声辐射驱动的泵喷射压电游泳器

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-07 DOI: 10.1088/1361-665x/ad6962

Xiuli Zheng, Junming Liu, Le Wang, Si Chen and Zhiling Liu

{"title":"Development of a pump-jet piezoelectric swimmer with acoustic radiation actuation","authors":"Xiuli Zheng, Junming Liu, Le Wang, Si Chen and Zhiling Liu","doi":"10.1088/1361-665x/ad6962","DOIUrl":"https://doi.org/10.1088/1361-665x/ad6962","url":null,"abstract":"The acoustofluidic actuation produced by piezoelectric transducer is capable of propelling micro underwater robots forward, yet the motion pattern is relatively simplistic. To solve this problem, a pump-jet swimmer with a combination of the underwater acoustic radiation effect is proposed in this work. The absorption and discharge of internal piezoelectric pump provide the linear forward power, and turning is achieved under the acoustic propulsive force of the external dual piezoelectric actuators. The working mode and optimal driving frequency of the piezoelectric actuators are determined through finite element simulation and mechanical vibration characteristic tests. And the key dimensional parameters of the piezoelectric pump are optimized in the light of the output flow measurements. Finally, a prototype with the size of Ф3.1 cm × 12 cm is fabricated for underwater driving performance experiments, which demonstrated well functions in straight swimming, turning, and loading. The swimmer with 20 g of additional load achieves a maximum speed of 105 mm s−1at the voltage of 180 Vp-p, it also completes the obstacle avoidance in water along a certain path. The rationality of this conceived actuation mechanism is preliminarily verified, which shows a potential for fixed-point transportation in the complex underwater situations.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"45 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969330","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

Mid-spatial frequency error restraint based on variable optimal angle-step trajectory strategy for the removal attenuation effect of magnetorheological finishing 基于可变最优角度步进轨迹策略的中空间频率误差约束，用于消除磁流变涂饰的衰减效应

IF 4.1 3区材料科学

Smart Materials and Structures Pub Date : 2024-08-07 DOI: 10.1088/1361-665x/ad695f

Lisheng Cai, Kuo Hai, Zisheng Li, Wei Fan, Xing Su, Liangwei Li, Ming Yan, Jinbo Li and Wen Huang

{"title":"Mid-spatial frequency error restraint based on variable optimal angle-step trajectory strategy for the removal attenuation effect of magnetorheological finishing","authors":"Lisheng Cai, Kuo Hai, Zisheng Li, Wei Fan, Xing Su, Liangwei Li, Ming Yan, Jinbo Li and Wen Huang","doi":"10.1088/1361-665x/ad695f","DOIUrl":"https://doi.org/10.1088/1361-665x/ad695f","url":null,"abstract":"In the field of ultra-precision manufacturing, such as lithography lenses, achieving nanometer-level errors across the entire frequency range is crucial. Magnetorheological finishing (MRF) technology, a high-precision processing method with high efficiency and low subsurface damage, often introduces mid-spatial frequency (MSF) error due to the removal attenuation effect and regular polishing trajectory in the long continuous polishing process. It causes various imaging and light transmission defects that limit the performance of precision optical instruments. The attenuation of material removal capacity of MRF is characterized by the attenuation of the tool influence function, which is obtained by an equal time interval point removal experiment. The variable optimal angle-step trajectory strategy is proposed to mitigate the removal attenuation effect of MRF and suppress MSF error. To validate the effectiveness and practicability of the proposed method, a uniform polishing experiment is performed on fused silica components. The experimental results show that the 90° grating trajectory introduces significant MSF error on surface shape with PV = 0.008 λ, and the variable optimal angle-step trajectory strategy does not introduce MSF error, which confirms the variable optimal angle-step trajectory strategy effectively eliminates the removal attenuation effect of MRF and suppresses MSF error. The study presents a general approach for ultra-precision optical processing and improves the manufacturing accuracy of optical components.","PeriodicalId":21656,"journal":{"name":"Smart Materials and Structures","volume":"39 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945333","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