International Journal of Smart and Nano Materials最新文献_第9页

Temperature dependence of dielectric breakdown of silicone-based dielectric elastomers 硅基介电弹性体介电击穿的温度依赖性

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-04-02 DOI: 10.1080/19475411.2020.1768605

Liyun Yu, Sindhu Vudayagiri, Lucy Ajakaiye Jensen, A. Skov

{"title":"Temperature dependence of dielectric breakdown of silicone-based dielectric elastomers","authors":"Liyun Yu, Sindhu Vudayagiri, Lucy Ajakaiye Jensen, A. Skov","doi":"10.1080/19475411.2020.1768605","DOIUrl":"https://doi.org/10.1080/19475411.2020.1768605","url":null,"abstract":"ABSTRACT A large number of insulation/dielectric failures in power systems are related to thermally-induced dielectrical breakdown, also known as ‘thermal breakdown’, at higher operating temperatures. In this work, the thermal breakdown behavior of typical silicone formulations, used as dielectrics in stretchable electronic devices, is analyzed at practically relevant operating temperatures ranging from 20°C to 80°C. An effective way of delaying the thermal breakdown of insulating materials is to blend micro- or nano-sized inorganic particles with high thermal conductivity, to dissipate better any losses generated during energy transduction. Therefore, two types of commercial silicone formulations, blended with two types of rutile hydrophobic, high-dielectric TiO2 fillers, are investigated in relation to their dielectric properties, namely, relative permittivity, the dissipation factor, and electrical breakdown strength. The breakdown strengths of these silicone composites are subsequently evaluated using Weibull analysis, which indicates a negative correlation between temperature and shape parameter for all compositions, thus illustrating that the homogeneity of the samples decreases in line with temperature, but the breakdown strengths nevertheless increase initially due to the trapping effect from the high-permittivity fillers. GRAPHICAL ABSTRACT","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"129 - 146"},"PeriodicalIF":3.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1768605","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46400719","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: 11

Irradiation induced elongation of Fe nanoparticles embedded in silica films 二氧化硅薄膜中Fe纳米粒子的辐照诱导伸长

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-04-02 DOI: 10.1080/19475411.2020.1775157

E. Dawi, T. Ommar, R. Ackermann, A. Karar

{"title":"Irradiation induced elongation of Fe nanoparticles embedded in silica films","authors":"E. Dawi, T. Ommar, R. Ackermann, A. Karar","doi":"10.1080/19475411.2020.1775157","DOIUrl":"https://doi.org/10.1080/19475411.2020.1775157","url":null,"abstract":"ABSTRACT Irradiation with swift heavy ions causes the deformation of Ferric nanoparticles in direction of the ion beam. Fe nanoparticles with mean diameter of about 20 nm were prepared by gas flow sputtering and subsequently confined within silica films. Two silica films wherein two different densities of Fe nanoparticles are encapsulated were irradiated with 50 MeV Ag ions with fluences of few 1014 ions.cm−2 at 300 K and normal incidence. Transmission electron microscopy analysis shows that the spherical Fe nanoparticles are deformed into prolate nanorods aligned in direction of the incident ion beam. The depth distribution profiles of irradiated particles reveal the presence of a critical fluence above which the elongation kinetics becomes dependent on the nanoparticles density. Analysis indicates that for the lower density particles, a saturation length is reached under irradiation to fluence between 3–4 × 1014 ions.cm−2. However, for the higher density, collective growth into aligned nanowires is presumed to take place. Hysteresis curves of the saturation magnetization and coercivity indicate an increasing magnetic anisotropy, which can be correlated with the deformation of nanoparticles in the direction of the ion beam. Graphical Abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"147 - 158"},"PeriodicalIF":3.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1775157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47051949","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: 5

The square rod-shaped ionic polymer-metal composite and its application in interventional surgical guide device 方形棒状离子聚合物-金属复合材料及其在介入性手术导向装置中的应用

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-04-02 DOI: 10.1080/19475411.2020.1783020

Qing-song He, Kai Huo, Xianrui Xu, Yinghao Yue, Guoxiao Yin, Min Yu

{"title":"The square rod-shaped ionic polymer-metal composite and its application in interventional surgical guide device","authors":"Qing-song He, Kai Huo, Xianrui Xu, Yinghao Yue, Guoxiao Yin, Min Yu","doi":"10.1080/19475411.2020.1783020","DOIUrl":"https://doi.org/10.1080/19475411.2020.1783020","url":null,"abstract":"ABSTRACT Ionic polymer-metal composite (IPMC) is an electro-active polymer material, which has many advantages such as small size, light weight, low driving voltage, large strain, and good biocompatibility. However, the conventional sheet IPMC has the shortcoming of only bending in the two-dimensional plane, which greatly limits the application of IPMC in the field of interventional surgery. In this work, a square rod-shaped IPMC with multi-degree-of-freedom motion was fabricated, and the displacement and blocking force of the square rod-shaped IPMC in different directions are measured and analyzed under the DC voltage signal. An interventional catheter was designed using the square rod-shaped IPMC in order to achieve active guidance, and a simulation experiment platform and a model of human aorta were built to successfully complete the in vitro simulation experiment of interventional surgery, which preliminarily verified the feasibility of the square rod-shaped IPMC in the field of interventional surgery. Graphical abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"159 - 172"},"PeriodicalIF":3.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1783020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43129098","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: 11

Tailoring specific properties of polymer-based composites by using graphene and its associated compounds 利用石墨烯及其相关化合物定制聚合物基复合材料的特定性能

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-04-02 DOI: 10.1080/19475411.2020.1786477

Pui-yan Hung, K. Lau, Qiaoshi Guo, B. Jia, B. Fox

{"title":"Tailoring specific properties of polymer-based composites by using graphene and its associated compounds","authors":"Pui-yan Hung, K. Lau, Qiaoshi Guo, B. Jia, B. Fox","doi":"10.1080/19475411.2020.1786477","DOIUrl":"https://doi.org/10.1080/19475411.2020.1786477","url":null,"abstract":"ABSTRACT Graphene and its associated compounds have been identified as extraordinary structural nano-fillers that can tailor the properties of new polymer-based composites with specific functionalities. Graphene possesses perfect 2D atomic architecture and has a large surface area that enhances the bonding, with tailored functional groups on its surface with polymer chains to form high strength composites. Recently, a lot of research has focused on developing composites with high specific strength, high electrical and thermal conductivities, high impact resistance, excellent energy storage capability and ability to maintain their strength at low-temperature environments by using graphene, graphene oxide (GO), reduced graphene oxide (rGO) or carbon nanotube/graphene. Ultimate goals are to design composites that can meet specific requirements for different engineering applications. In this paper, the discussion on all aspects in relation to the use of graphene and its associated compounds for advanced composites will be given in detail. The potentiality of using these materials for high-tech applications will be explored. Up to date, it has been proved that the use of graphene-based nanofillers does improve the mechanical, interfacial bonding, electrical, thermal and electromagnetic interference shield properties of polymer-based materials. Appropriately adding a small amount of these nanofillers do make a big difference to the properties of host materials. Graphical Abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"173 - 189"},"PeriodicalIF":3.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1786477","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44748024","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: 7

Surface roughening of Nafion membranes using different route planning for IPMCs ipmc不同路线规划下的Nafion膜表面粗化

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-04-02 DOI: 10.1080/19475411.2020.1767225

Liang Yang, Dongsheng Zhang, Xining Zhang, A. Tian, Yifan Ding

{"title":"Surface roughening of Nafion membranes using different route planning for IPMCs","authors":"Liang Yang, Dongsheng Zhang, Xining Zhang, A. Tian, Yifan Ding","doi":"10.1080/19475411.2020.1767225","DOIUrl":"https://doi.org/10.1080/19475411.2020.1767225","url":null,"abstract":"ABSTRACT In this paper, three different roughening route planning methods (free coarsening, vertical coarsening, circling coarsening) were designed to pre-treat the basement membrane. The platinum IPMC was prepared by electroless plating to observe their surface morphology and test their performances such as output displacement and blocking force. The results show that the platinum electrode of the vertical coarsening route planning of IPMC is distributed in the shape of fish scales and is the most compact and regular on the surface electrode. The thickness of the platinum electrode layer is about 13 μm, the maximum output displacement is 54.89 mm, the blocking force of 15.46 mN, and the maximum strain energy density of the IPMC of 2.44 KJ/m3. Vertical coarsening route planning can significantly improve the electrodynamic properties of IPMC, and it is recommended that the surface roughening of IPMC be utilized in the research and application of IPMC. It lays a certain experimental foundation for the performance improvement and innovation research and development of IPMC in the subsequent stage. Graphical Abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"117 - 128"},"PeriodicalIF":3.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1767225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41628914","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: 13

A reusable SMA actuated non-explosive lock-release mechanism for space application 一种用于空间应用的可重复使用的SMA驱动非爆炸锁释放机构

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-01-02 DOI: 10.1080/19475411.2019.1711462

Xueting Pan, Yuliang Zhang, Yifan Lu, Fei Yang, H. Yue

{"title":"A reusable SMA actuated non-explosive lock-release mechanism for space application","authors":"Xueting Pan, Yuliang Zhang, Yifan Lu, Fei Yang, H. Yue","doi":"10.1080/19475411.2019.1711462","DOIUrl":"https://doi.org/10.1080/19475411.2019.1711462","url":null,"abstract":"ABSTRACT After the satellite is launched with the carrier rocket, it is necessary to separate the satellite from the rocket at an appropriate time to ensure that the satellite enters the intended orbit. In this process, it is vital to ensure a reliable connection and accurate separation. With the increasing use of microsatellite in orbit, the contradiction between the shock of separation and the requirement of the platform’s dynamic environment is becoming increasingly prominent. Therefore, the traditional pyrotechnic separation device can no longer meet the requirements. This paper presents a reusable non-explosive release actuator using shape memory alloy (SMA) wire for high load and low shock. The system is based on the Fast Acting Shock-less Separation Nut (FASSN) technology. Using the shape memory effect of SMA, a biased SMA wire trigger has been developed, which is used as the driver source of the actuator. At the moment of receiving the electrical signal, the SMA wire generates stress and deformation. The trigger set free the constraints on the mechanical components, and the target is released. Experimental results indicate that the trigger device can unlock successfully and well meet the technical objectives. GRAPHICAL ABSTRACT","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"65 - 77"},"PeriodicalIF":3.9,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2019.1711462","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44161413","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: 14

Photocatalytic activity, nanostructure and optical properties of 3D ZnS urchin-like via hydrothermal method 水热法制备三维海胆样ZnS的光催化活性、纳米结构和光学性质

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-01-02 DOI: 10.1080/19475411.2019.1710001

M. Riazian, Maryam Yousefpoor

{"title":"Photocatalytic activity, nanostructure and optical properties of 3D ZnS urchin-like via hydrothermal method","authors":"M. Riazian, Maryam Yousefpoor","doi":"10.1080/19475411.2019.1710001","DOIUrl":"https://doi.org/10.1080/19475411.2019.1710001","url":null,"abstract":"ABSTRACT In the present research, the fabrication and characterization of ZnS urchin-like nanoparticles (ULNPs) via simple, template free and one-step hydrothermal method are reported. Zinc acetate dihydrate, thiosemicarbazide and ethylenediamine are utilized as precursors. Nanostructure characterization of three-dimension ZnS ULNPs is specified by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDX), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and ultraviolet-visible (UV-Vis) spectroscopy. The photocatalytic activity of ZnS NPs is determined by measuring the degradation of an organic dye methylene orange (MO) under UV-irradiation. The lattice characteristics such as nanocrystallite size, strain, stress, and deformation energy density are specified using Williamson-Hall (W-H) and Halder-Wagner (H-W) analysis with different considerations about the isotropic nature of the crystal. XRD analysis reveals that ZnS NPs are hexagonal wurtzite phase. The shape and mean diameter of NPs are demonstrated by TEM and SEM techniques to be 3D urchin-like with an average size of 60 nm. N2 adsorption-desorption and UV-Vis spectroscopies are utilized to specify the optical characteristics such as mean pore diameter, total pore size, and BET special surface area. The band gap of fabrication ZnS NPs has been evaluated from the Tauc equation and absorption edge to be 3.84 eV. Graphical abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"47 - 64"},"PeriodicalIF":3.9,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2019.1710001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44447378","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: 20

Sugar transfer of nanomaterials and flexible electrodes 纳米材料和柔性电极的糖转移

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-01-02 DOI: 10.1080/19475411.2020.1731622

T. Hong, Tianze Shen, Junlong Yang, Yichen Sun, Jianming Zhang, Haiyang Pan, Ying Hong, Yan Wang, Shuo Chen, Yue Zhao, C. Guo

{"title":"Sugar transfer of nanomaterials and flexible electrodes","authors":"T. Hong, Tianze Shen, Junlong Yang, Yichen Sun, Jianming Zhang, Haiyang Pan, Ying Hong, Yan Wang, Shuo Chen, Yue Zhao, C. Guo","doi":"10.1080/19475411.2020.1731622","DOIUrl":"https://doi.org/10.1080/19475411.2020.1731622","url":null,"abstract":"ABSTRACT Nanomaterials with various dimensionalities (e.g., nanowires, nanofilms, two-dimensional materials, and three-dimensional nanostructures) have shown great potential in the recent development of flexible electronics. Conventionally, organic solvents are inevitable while integrating nanomaterials onto flexible substrates, where polymer mediator-assisted transfer techniques are involved. This often damages the flexible substrate and thus hamper the large-scale application of nanomaterials. Here we report a method using water-soluble sugar as a mediator to facilely transfer nanomaterials onto rigid or flexible substrates. This method requires no organic solvent during transfer. More importantly, the morphology and properties of transferred nanomaterials, such as shape, microstructure, resistivity, and transmittance are well preserved on the target substrate. We believe that this universal and rapid transfer method can greatly advance the applications of nanomaterials in the field of flexible devices and beyond. Graphical Abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"1 - 10"},"PeriodicalIF":3.9,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1731622","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42556535","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: 5

Mechanical characterization of functional graphene nanoplatelets coated natural and synthetic fiber yarns using polymeric binders 使用聚合物粘合剂涂覆天然和合成纤维纱线的功能性石墨烯纳米片的机械表征

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2020-01-02 DOI: 10.1080/19475411.2020.1716094

Velram Balaji Mohan, D. Bhattacharyya

{"title":"Mechanical characterization of functional graphene nanoplatelets coated natural and synthetic fiber yarns using polymeric binders","authors":"Velram Balaji Mohan, D. Bhattacharyya","doi":"10.1080/19475411.2020.1716094","DOIUrl":"https://doi.org/10.1080/19475411.2020.1716094","url":null,"abstract":"ABSTRACT Fabrication of electrically conductive yarns (glass, flax and polypropylene fibers) coated with graphene nanoparticles (GNP) were characterized for their mechanical properties and compared with their electrical properties. The composites were produced with the use of polymeric binders (epoxy resin and thermoplastic starch) and two different dip-coating methodologies were developed to create the coating layers. Technique-1 involved coating of binder and then GNP layer whereas Technique-2 had a mixture of binder and GNP in the predetermined ratio, which was coated on the yarns. The mechanism of adhesion varies or influences on a number of factors such as the nature of the fiber surface, coating method and effective binder. Tensile properties of the yarns were measured by an appropriate standard, and the highest tensile strength was noticed with epoxy-based glass fiber samples as 222 MPa followed by flax fiber samples as 206 MPa. The composites of starch-based showed poor mechanical performance compared to those of epoxy ones. This was due to poor adhesion between the surface and starch layer (interphase) where the Van der Wall’s force was quite low. Electrical conductivity, glass fiber yarns with epoxy binder were identified to have the highest electrical conductivity of 0.1 S.cm−1 among other samples. Graphical Abstract","PeriodicalId":48516,"journal":{"name":"International Journal of Smart and Nano Materials","volume":"11 1","pages":"78 - 91"},"PeriodicalIF":3.9,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/19475411.2020.1716094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45088772","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: 9

Finite element analysis of shape-memory polymer mast 形状记忆聚合物桅杆的有限元分析

IF 3.9 3区材料科学

International Journal of Smart and Nano Materials Pub Date : 2019-10-02 DOI: 10.1080/19475411.2019.1686666

Shuai Liu, Qingsheng Yang

引用次数: 6