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| 1 | Recent advances on 3D printing graphene-based composites显示文摘3D printing or additive manufacturing (AM) has revolutionized the way of manufacturing by designing complex structures in a customized feature which cannot be realized by traditional processing methods. Incoming materials are trying to adopt 3D printing techniques which directly fabricate sophisticated entities with multifunctionality like mechanical, electrical, thermal and magnetic properties etc. For the realization of advanced materials, 3D printing techniques are emerging from single material to composite materials manufacturing by simply introducing the nano- and micro-reinforcements with the matrix. In this review, we provide an outline of 3D printing graphene-based composites according to various AM techniques including fused deposition modeling (FDM), direct ink writing (DIW), stereolithography (SLA) and selective laser sintering (SLS). First a brief introduction of various AM techniques is given to get a basic understanding of the principles of 3D printing, and then the fabrication process, structural characteristics and applications of different 3D printing techniques for graphene-based composites are summarized. In addition, some effective simulation and characterization methods are also included. We hope that this review would clarify the potential of AM techniques for composite materials and can open new prospects for designing of novel materials. | Haichang Guo Ruicong Lv Shulin Bai | 2019 | Nano Materials Science2019，1，2： | 6 |
| 2 | Effects of cerium substitution on phase components, microstructures and magnetic properties of Nd-Fe-Ti-B alloy显示文摘(Nd(1-x)Cex)(12)Fe(77)Ti5B6(x=0,0.2,0.3,0.4,0.6,0.8)alloys were prepared by melt-spinning and annealing techniques.The phase constitutions,microstructures and magnetic properties were investigated by powder X-ray diffraction(XRD),a differential scanning calorimeter(DSC),a vibrating sample magnetometer(VSM)and a transmission electron microscope(TEM).It is found that with the increase of Ce content,the coercivity of the(Nd(1-x)Cex)(12)Fe(77)Ti5B6 alloys reaches maximum first and then decreases.The maximum coercivity reaches 18.5 kOe obtained in the sample of 20%Ce substituted which is 34%higher than the Ce-free sample.TEM results reveal that the micro structure refinement effect is responsible for the coercivity improvement.This phenomenon implies that in some cases,Ce and Ti co-doping is more beneficial to improving of the coercivity than Ti single doping in Nd-Fe-B alloys.With further Ce addition,magnetic properties deteriorate due to the formation of CeFe2 and TbCu7-type phases. | Haijun Peng Yang Luo Yakun Dou Xinyuan Bai Wenlong Yan Dunbo Yu Yuanfei Yang Shulin Diao | 2019 | Journal of Rare Earths2019，37，8： | 4 |
| 3 | Enhancing through-plane thermal conductivity of fluoropolymer composite by developing in situ nano-urethane linkage at graphene–graphene interface显示文摘Attributed to the intense development and complexity in electronic devices,energy dissipation is becoming more essential nowadays.The carbonaceous materials particularly graphene(Gr)-based thermal interface materials(TIMs)are exceptional in heat management.However,because of the anisotropic behavior of Gr in composites,the TIMs having outstanding through-plane thermal conductivity(┴TC)are needed to fulfill the upcoming innovation in numerous devices.In order to achieve this,herein,nano-urethane linkage-based modified Gr and carbon fibers architecture termed as nanourethane linkage(NUL)-Gr/carbon fibers(CFs)is fabricated.Wherein,toluene diisocyanate is utilized to develop a novel but simple NUL to shape a new interface between graphene sheets.Interestingly,the prepared composite of NUL-Gr/CFs with polyvinylidene fluoride matrix shows outstanding performance in heat management.Owing to the unique structure of NUL-Gr/CFs,an unprecedented value of┴TC(~7.96 W·m^–1·K^–1)is achieved at a low filler fraction of 13.8 wt.%which translates into an improvement of^3,980%of pristine polymer.The achieved outcomes elucidate the significance of the covalent interaction between graphene sheets as well as strong bonding among graphene and matrix in the composites and manifest the potential of proposed NUL-Gr/CFs architecture for practical applications. | Muhammad Maqbool Haichang Guo Akbar Bashir Ali Usman Adeel YAbid Guansong He Yanjuan Ren Zeeshan Ali Shulin Bai | 2020 | Nano Research2020，13，10： | 3 |
| 4 | An improved U-Net for cell confluence estimation显示文摘Cell confluence is an important metric to determine the growth and the best harvest time of adherent cells. At present, the evaluation of cell confluence mainly relies on experienced labor, and thus it is not conducive to the automated cell culture. In this paper, we proposed an improved U-Net algorithm(called DU-Net) for the segmentation of adherent cells. First, the general convolution was replaced by the dilated convolution to expand the receptive fields for feature extraction. Then, the convolutional layers were combined with the batch normalization layers to reduce the dependence of the network on initialization. As a result, the segmentation accuracy and F1-score of the proposed DU-Net for adherent cells with low confluence(<50%) reached 96.94% and 93.87%, respectively, and for those with high confluence(≥50%), they reached 98.63% and 98.98%, respectively. Further, the paired t-test results showed that the proposed DU-Net was statistically superior to the traditional U-Net algorithm. | BAI Hua LU Changhao MA Ming YAN Shulin ZHANG Jianzhong HAN Zhibo | 2022 | Optoelectronics Letters2022，18，6： | 2 |
| 5 | Vertical Alignment of Anisotropic Fillers Assisted by Expansion Flow in Polymer Composites显示文摘Orientation control of anisotropic one-dimensional(1D)and two-dimensional(2D)materials in solutions is of great importance in many fields ranging from structural materials design,the thermal management,to energy storage.Achieving fine control of vertical alignment of anisotropic fillers(such as graphene,boron nitride(BN),and carbon fiber)remains challenging.This work presents a universal and scalable method for constructing vertically aligned structures of anisotropic fillers in composites assisted by the expansion flow(using2D BN platelets as a proof-of-concept).BN platelets in the silicone gel strip are oriented in a curved shape that includes vertical alignment in the central area and horizontal alignment close to strip surfaces.Due to the vertical orientation of BN in the central area of strips,a throughplane thermal conductivity as high as 5.65 W m^(-1) K^(-1) was obtained,which can be further improved to 6.54 W m^(-1) K^(-1) by combining BN and pitch-based carbon fibers.The expansion-flow-assisted alignment can be extended to the manufacture of a variety of polymer composites filled with 1D and 2D materials,which can find wide applications in batteries,electronics,and energy storage devices. | Hongyu Niu Haichang Guo Lei Kang Liucheng Ren Ruicong Lv Shulin Bai | 2022 | Nano-Micro Letters2022，14，9： | 2 |
| 6 | Atomic-scale structural and chemical evolution of Li3V2(PO4)3 cathode cycled at high voltage window显示文摘Here,by using atomically resolved scanning transmission electron microscopy and electron energy loss spectroscopy,we investigate the structural and chemical evolution of Li3V2(PO4)3 (LVP) upon the high-voltage window (3.0-4.8 V).We find that the valence of vanadium gradually increases towards the core corresponding to the formation of electrochemically inactive Li3-xV2(PO4)3 (L3-xVP) phases.These Li-deficient phases exhibit structure distortion with superstructure stripes,likely caused by the migration of the vanadium,which can slow down the lithium ion diffusion or even block the diffusion channels.Such kinetic limitations lead to the formation of Li-deficient phase along with capacity loss.Thus,the LVP continuously losses of electrochemical activity and Li-deficient phases gradually grow from the particle core towards the surface during cycling.After 500 cycles,the thickness of active LVP layer decreases to be - 5-20 nm.Moreover,the micromorphology and chemical composition of solid electrolyte interphase (SEI) have been investigated,indicating the thick SEI film also contributes to the capacity loss.The present work reveals the structural and chemical evolution in the cycled electrode materials at an atomic scale,which is essential to understand the voltage fading and capacity decaying of LVP cathode. | Shulin Chen Jian Zou Yuehui Li Ning Li Mei Wu Jinghuang Lin Jingmin Zhang Jian Cao Jicai Feng Xiaobin Niu Jianming Bai Junlei Qi Peng Gao Liping Wang Hong Li | 2019 | Nano Research2019，12，7： | 1 |
| 7 | Study on the microstructures and mechanical behaviour of compatibilized polypropylene/ polyamide 6 blends显示文摘 | Zeng Ning Bai Shulin G'Sell C | 2002 | Polym Inter2002，51，12： | 1 |
| 8 | Microstructures, mechanical properties and corrosion resistance of Hastelloy C22 coating produced by laser cladding 显示文摘 | Qinying Wang Yangfei Zhang Shulin Bai | 2013 | Journal of Alloys and Compounds2013，553，3： | 1 |
| 9 | EXPERIMENTAL STUDY OF MICROHOLE GROWTH AND COALFSCENCE IN DUCTILE MATERIALS显示文摘The growth and coalescence of two microholes in copper foil were studied experimentally by in situ tensile tests under a,scanning electronic microscope.Two microholes of 15-35μm in di-ameter were arranged in different distances and orientations.It was found that the mechanisms of microhole evolution were represented by slipping band creation,and then crack initiation and propagationalong the slipping bands,in ligament.The process of microhole growth and coalescence was influencedby the inter-center distance and orientation of microholes.The critical surface of microholes at coales-cence is about 2—2.5 times that of the initial one.The variation of both the inter center distance andorientation depends on the initial angle. | Bai Shulin Ni Shouyong Fang Jing (Department of Mechanics and Engineering Science,Peking University,Beijing 100871,China) | 1999 | Acta Mechanica Solida Sinica1999，12，3： | 1 |
| 10 | Polypropylene/polyamide 6/polyethylene-octene elastomer blends: Part 3, Mechanisms of volume dilatation during plastic deformation under uniaxial tension显示文摘 | Bai Shulin G'Sell C Hiver J M | 2005 | Polymer2005，46，17： | 1 |
| 11 | Experimental studies on yield behavior of steel under rapid heating显示文摘 | Liu Zongde Bai Shulin Yang Kun | | 0，，05： | 1 |
| 12 | Polypropylene/polyamide 6/polyethylene-octene elastomer blends: Part 2, Volume dilatation during plastic deformation under uniaxial tension显示文摘 | G'Sell C Bai Shulin Hiver J M | 2004 | Polymer2004，45，17： | 1 |
| 13 | Microstructures and mechanical properties of polypropylene/palyamide 6/polyethelene-octene elastomer blends显示文摘 | Wang Gongtao Hirer J M | 2004 | Polymer2004，45，9： | 1 |
| 14 | Detection of paracetamol by capillary clectrophoresis with chemiluminescence detection 显示文摘 | Zhao Shulin Bai Wenling Yuan Hongyan | 2006 | Anal Chem Acta2006，559，2： | 1 |
| 15 | Presence of HBsAg, HBcAg, and HBVDNA in ovary and ovum of the patients with chronic hepatitis B virus infection显示文摘 | Feng Ye Yafei Yue Shuhong Li Tianyan Chen Guiqin Bai Min Liu Shulin Zhang | 2006 | American Journal of Obstetrics and Gynecology2006，，2： | 1 |
| 16 | Detection of paracetamol by capillary electrophoresis with chemilu- minescence detection 显示文摘 | Shulin Zhao Wenling Bai Hongyan Yuan | 2006 | Analytica Chimica Acta2006，559，： | 1 |
| 17 | Sheet forming of the multi-layered biaxial weft knitted fabric reinforcement, Part 1 : On hemispherical surfaces 显示文摘 | LI Xiongkui BAI Shulin | 2009 | Composites : Part A2009，40，： | 1 |
| 18 | Tensile properties of muhilay- ercd biaxial weft knitted fabric reinforced composite ma- terial 显示文摘 | LI Xiongkui BAI Shulin | 2010 | Plastics Rubber and Composites2010，39，2： | 1 |
| 19 | Study on thermal properties of graphene foam/graphene sheets filled polymer composites显示文摘 | Zhao Yunhong Wu Zhenkun Bai Shulin | 2015 | Composites Part A:Applied Science and Manufacturing2015，72，2： | 1 |
| 20 | THEORETICAL ANALYSIS ON THE LOCAL CRITICAL STRESS AND SIZE EFFECT FOR INTERFACIAL DEBONDING IN PARTICLE REINFORCED RHEOLOGICAL MATERIALS显示文摘The mechanisms of interracial debonding of particle reinforced theological materials arestudied.Based on an energy criterion,a simple formula of local critical stress for interfacial debondingis derived and expressed in terms of the interfacial energy.The particle size effect on interface debond-ing can then be analyzed easily owing to the fact that critical stress is inversely proportional to thesquare root of particle radius.By taking PP/CaCO3 system as an example,the present energy criterionis compared with the mechanical debonding criterion,and it is found that under the condition that bondstrength is equal to matrix strength and particle radius not over 0.2μm,the mechanical debonding cri-terion can be automatically satisfied if the energy criterion is satisfied.A relation between critical timeand interface energy is calculated by using the energy criterion.The influences of the particle volumefraction and the parlicle size,the loading rate and the relaxation time of the matrix on the critical timeof interfacial debonding are also discussed. | Chen Jiankang Huang Zhuping Bai Shulin | 1999 | Acta Mechanica Solida Sinica1999，12，1： | 0 |
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