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Journal of Materials Science & Technology 2021年第16期75卷 164-173页

作者： Enkang Hao Yulong An Jie Chen Xiaoqin Zhao Guoliang Hou Jianmin Chen Meizhen Gao Fengyuan Yan State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China China Academy of Ordnance Science Ningbo Branch Ningbo 315103China Key Lab for Magnetism and Magnetic Materials of MOE School of Physical Science and TechnologyLanzhou UniversityLanzhou 730000China

Ag-Mo-O ternary oxide has attracted growing attention because of its potential as a solid lubricant at high *** work designs and prepares NiCoCrAlYTa/Ag/Mo composite coating,performed using high velocity oxy-fuel(HVOF)spraying *** environment temperature plays an important role in the microstructure and phases as well as lubricant properties of NiCoCrAlYTa/Ag/Mo *** the environment temperature is above 600℃,the outer diffusion and oxidation of Ag and Mo lead to the formation of Ag2 MoO4 on the coating ***-like Ag2 MoO4 could form a continuous lubricant film at 800℃and consequently let the composite coating present the best tribological ***,a small number of hard particles could play a good bearing role during friction and improve the tribological properties of the composite coating.

关键词： Microstructure evolution in-situ formation Ag_(2)MoO_(4) Layer-like structure High-temperature friction

in-situ formation of hierarchical solid-electrolyte interphase for ultra-long cycling of aqueous zinc-ion batteries

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Nano Research 2023年第1期16卷 449-457页

作者： Shaojie Zhang Jiajia Ye Huaisheng Ao Mingying Zhang Xilong Li Zhibin Xu Zhiguo Hou Yitai Qian School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China School of Chemistry and Material Science University of Science and Technology of ChinaHefei 230026China

Aqueous rechargeable zinc ion batteries have received widespread attention due to their high energy density and low ***,zinc metal anodes face fatal dendrite growth and detrimental side reactions,which affect the cycle stability and practical application of zinc ion ***,an in-situ formed hierarchical solid-electrolyte interphase composed of InF3,In,and ZnF2 layers with outside-in orientation on the Zn anode(denoted as Zn@InF3)is developed by a sample InF3 *** inner ultrathin ZnF2 interface between Zn anode and InF3 layer formed by the spontaneous galvanic replacement reaction between InF3 and Zn,is conductive to achieving uniform Zn deposition and inhibits the growth of Zinc dendrites due to the high electrical resistivity and Zn2+***,the middle uniformly generated metallic In and outside InF3 layers functioning as corrosion inhibitor suppressing the side reaction due to the waterproof surfaces,good chemical inactivity,and high hydrogen evolution ***,the as-prepared zinc anode enables dendrite-free Zn plating/stripping for more than 6,000 h at nearly 100%coulombic efficiency(CE).Furthermore,coupled with the MnO2 cathode,the full battery exhibits the long cycle of up to 1,000 cycles with a low negative-to-positive electrode capacity(N/P)ratio of 2.8.

关键词： zinc ion batteries solid-electrolyte interphase in-situ formation hierarchical coating

in-situ formation of Spinel Fibers in MgO-C Refractory Matrixes

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Journal of Wuhan University of Technology(Materials Science) 2009年第6期24卷 896-902页

作者：谢朝晖 High Temperature Ceramics Institute Zhengzhou University

In-situ magnesia-rich spinel fiber was formed resulting from the addition of ferrocene into MgO-C refractory matrixes. The formation of in-situ spinel fiber was detected to start at 1300 ℃. The amount, diameter and length of the fibers increased with rising temperature. Ferrocene may have catalytic effects on the growth of the fibers in two aspects. First, the reaction between MgO and C and the decomposition of Al4C3 may be catalyzed at high temperature. Suitable concentration gaseous phase is then created for vapor-vapor reaction which could result in the in-situ formation of fibers. Second, Fe nanoparticle produced from ferrocene can act as catalytic droplets and catalyze the growth of the fibers. The fibers are formed via the vapor-liquid-solid and vapor-solid mechanisms. In terms of chemical thermodynamics, the partial pressure of CO and Mg（g） are found to play an important role in the in-situ fibers formation. Different concentration of vapors affects the size, amount and composition of the fibers at different temperatures. The mechanical properties of MgO-C brick was found to be improved by ferrocene addition.

关键词： spinel fiber in-situ formation ferrocene MgO-C brick refractory.

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF in-situ formation FIBROUS POLYTYPE AlN COMPOSITE-MATERIAL

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Acta Metallurgica Sinica(English Letters) 1993年第7期6卷 41-45页

作者： LI Zonghuai CHEN Shengqi ZHOU Yanchun XIA Fei Institute of Metal Research,Academia Sinica,Shenyang,China Professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China

in-situ formation fibrous polytype AlN composite ceramic materials was prepared from AlN-Y_2O_3-SiO_2 *** comparison with AlN ceramics,both bending strength and fracture toughness of the composite materials are much *** observation revealed that a lot of epitaxial growth fibrous AlN polytype occurred in matrix.Y_2O_3 seems to act as a densifier for in-situ formation materials and as medium for growth of fibrous ***_2 is the growth promoter for fibrous *** occurrnce of fibrous polytype may increase the strength and toughness of AlN ceramic composite mateirals.

关键词： AIN ceramics in-situ formation fibrous polytype

Lithium Salt Combining Fluoroethylene Carbonate Initiates Methyl Methacrylate Polymerization Enabling Dendrite-Free Solid-State Lithium Metal Battery

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ENERGY & ENVIRONMENTAL MATERIALS 2024年第6期7卷 50-59页

作者： Ye, Xue Liang, Jianneng Du, Baorong Li, Yongliang Ren, Xiangzhong Wu, Dazhuan Ouyang, Xiaoping Zhang, Qianling Liu, Jianhong Zhejiang Univ Inst Proc Equipment Coll Energy Engn Hangzhou 310000 Peoples R China Shenzhen Univ Coll Chem & Environm Engn Graphene Composite Res Ctr Shenzhen 518061 Peoples R China

This work demonstrates a novel polymerization-derived polymer electrolyte consisting of methyl methacrylate, lithium bis(trifluoromethanesulfonyl)imide and fluoroethylene carbonate. The polymerization of MMA was initiated by the amino compounds following an anionic catalytic mechanism. LiTFSI plays both roles including the initiator and Li ion source in the polymer electrolyte. Normally, lithium bis(trifluoromethanesulfonyl)imide has difficulty in initiating the polymerization reaction of methyl methacrylate monomer, a very high concentration of lithium bis(trifluoromethanesulfonyl)imide is needed for initiating the polymerization. However, the fluoroethylene carbonate additive can work as a supporter to facilitate the degree of dissociation of lithium bis(trifluoromethanesulfonyl)imide and increase its initiator capacity due to the high dielectric constant. The as-prepared poly-methyl methacrylate-based polymer electrolyte has a high ionic conductivity (1.19 x 10-3 S cm-1), a wide electrochemical stability window (5 V vs Li+/Li), and a high Li ion transference number (tLi+$$ {t}_{{\mathrm{Li}}{+}} $$) of 0.74 at room temperature (RT). Moreover, this polymerization-derived polymer electrolyte can effectively work as an artificial protective layer on Li metal anode, which enabled the Li symmetric cell to achieve a long-term cycling performance at 0.2 mAh cm-2 for 2800 h. The LiFePO4 battery with polymerization-derived polymer electrolyte-modified Li metal anode shows a capacity retention of 91.17% after 800 cycles at 0.5 C. This work provides a facile and accessible approach to manufacturing poly-methyl methacrylate-based polymerization-derived polymer electrolyte and shows great potential as an interphase in Li metal batteries. Polymerizing monomers/oligomers using Li salts as the initiators has significant meaning in avoiding the introduction of impurities and improves interface stability between the electrodes and polymerization-derived polymer electrolyte (PDP

关键词： in situ polymerization lithium anode polymer electrolyte solid-state lithium batteries ENERGY-DENSITY LITHIUM in-situ formation HIGH-PERFORMANCE ELECTROLYTES ANODES

Microstructure and Wear Properties of Laser Coating Reinforced by Ti(C_xN_(1-x)) on Adamite Roller

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Journal of Iron and Steel Research International 2009年第3期16卷 78-82,88页

作者： QI Yong-tian ZOU Zeng-da School of Material Science and Engineering Shandong University Jinan 250061 Shandong China

Fe-based layer with Ti（CxN1-x） particulates on Adamite roller surface was obtained by a 5 kW traverse-flowing CO2 laser cladding technology. The microstructures of the layer were detected by optical microscopy （OM）,X-ray diffraction （XRD）,scanning electron microscopy （SEM）,and electron probe microscopy analysis （EMPA）. The tests of wear resistance was carried out on the test machine. It was seen that a good metallurgical bonding between the coating and the substrate was achieved. The microstructure contains bulky dendritic crystal and small size Ti（CxN1-x） grains that are uniformly distributed in the solid solution matrix. The wear tests showed that the laser coating provided an excellent wear resistance property at room temperature.

关键词： Ti(CxN1-x) laser cladding in-situ formation adamite roller

Microstructure and mechanical property of laser cladding Fe-based alloy composite coating reinforced by Ti （ C0.3 No. 7 ） particulates

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China Welding 2012年第3期21卷 17-21页

作者：齐勇田曹润平曹朝霞邹增大 Department of Materials Engineering Inner Mongolia Baotou Vocational and Technical CollegeBaotou014030 School of Materials Science and Engineering Shandong UniversityJinan250061

Fe-based alloy coatings reinforced by Ti（ C, N） particles was produced through CO2 laser cladding technology. The microstructure of laser cladding coating was analyzed by means of X-ray diffraction （ XRD ）, transmission electron microscopy （TEM） , selected area electron diffraction （ SAED ） , scanning electron microscopy （SEM） and electron probe microscopic analyzer （ EPMA ）. The mechanical property of the layer was measured by using microhardness meter. The results show that Ti （ C0. 3 N0. 7 ） panicles are introduced by an in-situ metallurgical reaction between TiN particle and graphite powder during laser cladding process. Titanium carbonitrides particles existed in the layer are fairly fine, ranging from 0. 1 μm to 5.0 μm, and evenly dispersed in the metal α-Fe matrix. Most of them take on nearly rhombus shape, and some of them are irregular in shape. The microhardness of laser cladding layer ranges from 770 HV0. 3 to 850 HV0. 3.

关键词： Ti (C0.3 N0.7 ) TiN in-situ formation laser cladding microhardness

Phenolic rigid organic filler/isotactic polypropylene ***

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Frontiers of Chemical Science and Engineering 2008年第3期2卷 236-241页

作者： Dongming QI Lei YANG Minghua WU Heming LIN Kohhei NITTA Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of EducationZhejiang Sci-Tech UniversityHangzhou 310018China Graduate School of Natural Science&Technology Kanazawa UniversityKanazawaIshikawa920-1192Japan

A novel phenolic rigid organic filler(KT)was melt-mixed with an isotactic polypropylene(iPP)to prepare a series of PP/KT composites,with or without maleic anhydride grafted polypropylene(MAPP)as *** evolution of filler morphology during melt-mixing and melt-pressure processes was monitored by scanning electron microscope(SEM)and polarized optical microscope(POM).The influences of shear force,pressure time,filler content and MAPP concentration on the final filler dispersion were *** found that this rigid organic filler readily melted and dispersed homogenously into the iPP matrix through a fission-fusion process during the melt-mixing *** a balanced dispersion,which was closely related to shear force and MAPP concentration,can be *** the meltpressure process,parts of the filler particles combined gradually through a coalescence ***,the incorporation of MAPP can effectively inhibit the tendency to coalesce and refine the filler particles sizes into ***,a series of PP/KT composites with controllable filler particles size and narrow size distribution can be obtained just by adjusting process conditions and MAPP *** addition,due to the in-situ formation mechanism,the filler phase possessed a typical solid true-spherical shape.

关键词： rigid organic filler polypropylene dispersion in-situ formation