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Journal of materials science & {2. 2010年第11期26卷 996-1000页

作者： lihong xue and {2. yan state key Laboratory of materials processing and die and mould technology,huazhong university of science and technology,{12.,china [a] state key Laboratory of {2. processing and die and mould technology huazhong university of science and technology wuhan 430074 china

Highly oriented barium titanate （BaTiO 3） thin films on Pt substrate were fabricated by combination of electrophoretic deposition with hydrothermal *** structure and morphology of thin films were characterized by X-ray diffraction and field-emission scanning electron *** is found that the titania precursor film,Ba（OH）2.concentration and hydrothermal temperature play crucial roles in the film morphology and *** BaTiO3 thin films with highly （110） preferred orientation can be formed on polycrystalline Pt substrate by appropriate adjustment of the reaction *** orientation parameter f of highly oriented BaTiO3 films was up to *** films exhibited a smooth and crack-free surface and remained in the layered *** situ topotactic transformation and dissolution-crystallization mechanisms were proposed to explain the morphology and orientation of BaTiO3 films during hydrothermal treatment.

关键词： Barium titanate Preferred orientation Electrophoretic deposition Hydrothermal treatment

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电镀-高温氧化制备Cr_2._3阻氚涂层

稀有金属材料与工程 2019年第2期48卷 656-661页

作者：狄姣汪亚张航薛丽红严有为华中科技大学材料成形与模具技术国家重点实验室湖北武汉430074

采用电镀-高温氧化技术在32.不锈钢基材表面制备出了Cr_2._3涂层,研究了氧化时间及氧化温度对涂层组织结构和表面形貌的影响。利用XRD、SEM、EDS等分析测试手段对涂层的组织结构、元素分布及形貌进行了表征,并对涂层的抗腐蚀性能和阻氢... 详细信息

采用电镀-高温氧化技术在32.不锈钢基材表面制备出了Cr_2._3涂层,研究了氧化时间及氧化温度对涂层组织结构和表面形貌的影响。利用XRD、SEM、EDS等分析测试手段对涂层的组织结构、元素分布及形貌进行了表征,并对涂层的抗腐蚀性能和阻氢性能进行了测试。结果表明,电流密度为0.3A/cm^2.氧化温度为700℃、氧化时间为4h下获得的Cr_2._3涂层,晶粒尺寸均匀,约为1μm,晶粒之间结合紧密,孔隙少;Cr_2._3涂层与基材之间存在Cr-O的过渡层,使Cr_2._3涂层与基材结合紧密,界面处无空洞、裂纹等缺陷;且该涂层具有良好的抗腐蚀性能(自腐蚀电流密度仅为0.98×10^(-4)μA/cm^2.和抗热冲击性能(300次),阻氢渗透性能比基材提高了10.5倍。

关键词：电镀-高温氧化 Cr2.3涂层阻氢性能

Si/Cu3_Si@C Composite Encapsulated in CNTs Network as High Performance Anode for Lithium Ion Batteries

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Journal of wuhan university of {2.(materials science) 2019年第5期34卷 1055-1061页

作者： LU Haoqi xue lihong ZHANG Wuxing state key Laboratory of Material {2. and die&mould technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China BTR New Energy materials Inc. Shenzhen 518106China

Si/Cu3Si@C composites encapsulated in CNTs network(SCC-CNTs) were synthesized via the combination of ball-milling and CVD methods. SCC-CNTs consist of conductive Cu3Si, amorphous carbon layer, cross-linked CNTs, and the etched pores, which can play the synergistic effects on the improvement of electronic conductivity and Li^+ diffusion. The volume expansion of Si anode is also suppressed during the electrochemical process. The SCC-CNTs composites demonstrate a remarkably improved electrochemical performance compared with pure Si, which can deliver a discharge capacity of 2.171 mAh·g^-1 at 0.4 A·g^-1 with ICE of 85.2., and retain 1197 mAh· g^-1 after 150 cycles. This work provides a facile approach to massively produce the high-performance Si-based anode materials for next-generation LIBs.

关键词： lithium-ion battery anodes silicon-based composite CNTs Cu3Si

Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen Huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao Feng Yao Jiang Xiao-Ming Li xue-Fei Miao He Zhu Si Lan xue-Qian Wang Bao-Long Shen Zhe Jia Feng-Qi Zhang Wei Wang Qi Liu {2.g Ren Xun-Li Wang Xiao-Ya Cui Xiao-{2.g Wang Ya-Nan Chen Bing-Bing Fan Meng-Ru Li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-Ping Zhao Qian Yu Rui Huang Ling-Kun Zhang Yi-Ping Lu Xu-Bo Li Huai-Jun Lin {2. Ma Wei-Ming {2.g Zhi-Hua Shen Hai-{2. He Yong-Gang Sun Yong-Jiang Huang De-Zhuang Wang Qing-Feng Liu Fei-{2.g Wang Hui Liu Hong-Hui Wu Li-Qiang Wang {2.g Lu Nan Wang Tian-Li Wang Wei-Bing Liao Yi-Han Wang Yuan Wu Yu-Zhen Yin Jie Pan Yi Zhang Qing Wang Jian-{2.g Zhang Tao {2.g Yasir Sohail Jin-Yu Zhang Hua Ji Qiang Li Wei-Di Liu Zhi-Gang Chen Xiong-Jun Liu Wen Ma Liang Mao Zhen-Duo Wu School of materials science and Engineering Nanjing University of Science and Technology Jiangsu key Laboratory for Advanced Metallic materials School of Materials Science and Engineering Southeast University Department of Physics City University of Hong Kong School of materials science and Engineering Tianjin University School of Physics and Microelectronics Zhengzhou University Department of Mechanical Engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center of Electron Microscopy and state key Laboratory of Silicon {2. School of Materials Science and Engineering Zhejiang University key Laboratory of Solidification Control and Digital Preparation technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional materials Jinan University School of Mechanics and Civil Engineering China University of Mining and Technology School of Physical sciences Great Bay University School of materials science andEngineering Harbin Institute of Technology state key Laboratory of {2.-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation Center for materials Genome Engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing Department of Mechanical Engineering The University of Hong Kong School of Computing Macquarie University key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University state key Laboratory for Advanced Metals and {2. University of Science and Technology Beijing state key Laboratory of {2. processing and die & mould technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University Department of materials science and Engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

LiOH对Ta掺杂石榴石型Li_(7)La_(3)Zr_(2.O_(12.固体电解质的影响

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硅酸盐学报 2022年第3期50卷 769-774页

作者：宋健张航薛丽红张五星严有为华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室武汉430074

通过固相法制备Ta掺杂Li_(7)La_(3)Zr_(2.O_(12.(Ta-LLZO)陶瓷,以LiOH为锂源合成Ta-LLZO粉末,并以LiOH为助烧剂制备Ta-LLZO陶瓷,研究了LiOH对Ta-LLZO陶瓷的组织结构和离子电导率的影响。结果表明:以LiOH为锂源可促进立方相Ta-LLZO的生... 详细信息

通过固相法制备Ta掺杂Li_(7)La_(3)Zr_(2.O_(12.(Ta-LLZO)陶瓷,以LiOH为锂源合成Ta-LLZO粉末,并以LiOH为助烧剂制备Ta-LLZO陶瓷,研究了LiOH对Ta-LLZO陶瓷的组织结构和离子电导率的影响。结果表明:以LiOH为锂源可促进立方相Ta-LLZO的生成。同时,以LiOH为助烧剂,可有效促进陶瓷的致密化,在1 2.0℃烧结5 h可获得致密的立方相Ta-LLZO陶瓷。当助烧剂的添加量为6%(质量分数)时,陶瓷的离子电导率可达6.2.×10^(-4)S·cm^(-1)。可见,固相法制备的Li_(7)La_(3)Zr_(2.O_(12.在全固态锂离子电池中具有广阔的应用前景。

关键词：固体电解质石榴石型锂镧锆氧固相反应锂离子电导率

钠离子电池双层碳包覆Na_(3)V_(2.(PO_(4))_(3)正极材料的超声辅助溶液燃烧合成及其电化学性能

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材料研究学报 2023年第2期37卷 129-135页

作者：罗昱陈秋云薛丽红张五星严有为华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室武汉430074

用超声辅助溶液燃烧合成技术制备双层碳包覆的Na_(3)V_(2.(PO_(4))_(3)(NVP)钠离子电池正极材料,并对其电化学性能进行深入的研究。结果表明,双层碳包覆在NVP颗粒表面,由内自外分别为无定形硬碳和石墨烯。石墨烯添加量为5.0%(质量分数)... 详细信息

用超声辅助溶液燃烧合成技术制备双层碳包覆的Na_(3)V_(2.(PO_(4))_(3)(NVP)钠离子电池正极材料,并对其电化学性能进行深入的研究。结果表明,双层碳包覆在NVP颗粒表面,由内自外分别为无定形硬碳和石墨烯。石墨烯添加量为5.0%(质量分数)的碳包覆NVP复合材料具有优异的电化学性能,在1 C倍率下充放电其初始比容量为117 mAh·g^(-1),循环300圈后容量的保持率为79%,在10 C倍率下其放电比容量高达100 mAh·g^(-1)。这种正极材料电化学动力学性能的提高,源于均匀的双层碳包覆结构及其构建的三维电子传输通道。

关键词：复合材料 C@Na_(3)V_(2.(PO_(4))_(3) 超声辅助溶液燃烧钠离子电池

球磨时间对自钝化钨合金的组织结构和抗氧化性能的影响

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复合材料学报 2023年第8期40卷 4531-4538页

作者：陈时杰叶超柳炜薛丽红周启来尹圣铭严有为华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室武汉430074 武汉理工大学材料科学与工程学院武汉430070

自钝化W合金具有优异的抗高温氧化性能,可望用于高温环境中的关键部件。为了揭示合金的组织结构与高温抗氧化性能之间关系,采用机械合金化法结合放电等离子体烧结技术制备了自钝化W-Si合金,研究了不同机械合金化时间对合金显微组织结构... 详细信息

自钝化W合金具有优异的抗高温氧化性能,可望用于高温环境中的关键部件。为了揭示合金的组织结构与高温抗氧化性能之间关系,采用机械合金化法结合放电等离子体烧结技术制备了自钝化W-Si合金,研究了不同机械合金化时间对合金显微组织结构的影响,并探究了合金的抗高温氧化性能。结果表明:合金由W、W_(5)Si_(3)和SiO_(x)组成,当球磨时间由4 h增加到2. h,合金中SiO_(x)的含量由16.2.增加到2..6%,而W_(5)Si_(3)的含量由57.8%降低到43.6%,且W和W_(5)Si_(3)的晶粒尺寸均减小,晶粒的细化有助于合金显微硬度的提高。在1000℃氧化10 h后,球磨4 h制得的合金增重为37.4 mg,而球磨2. h制得的合金增重达到了141.6 mg,它们的氧化层厚度分别约为167.0μm和415.7μm。球磨时间短制得的合金具有更优异的抗氧化性能,这是由于其W_(5)Si_(3)为连续相。W_(5)Si_(3)原位氧化形成的WO3/SiO2.合氧化物亦为连续相,形成了保护性氧化层,对合金的内氧化起到了有效的抑制作用。

关键词：自钝化 W-Si合金机械合金化放电等离子体烧结抗氧化性能

热处理对电弧熔丝增材制造核电用铁素体/马氏体钢微观组织与力学性能的影响

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焊接学报 2023年第10期44卷 18-26,I0003,I0004页

作者：周亚举尹圣铭夏永中易果强薛丽红严有为华中科技大学材料加工与模具技术国家重点实验室武汉430074 华中科技大学武汉430074

采用电弧熔丝增材制造(wire and arc additive manufacturing,WAAM)技术制备了低活化铁素体/马氏体钢(reduced activation ferrite/martensite steel,RAFM钢),通过光学显微镜、扫描电子显微镜和透射电子显微镜等观察微观组织变化,通过... 详细信息

采用电弧熔丝增材制造(wire and arc additive manufacturing,WAAM)技术制备了低活化铁素体/马氏体钢(reduced activation ferrite/martensite steel,RAFM钢),通过光学显微镜、扫描电子显微镜和透射电子显微镜等观察微观组织变化,通过拉伸试验进行力学性能测试,研究了热处理工艺对其微观组织和力学性能的影响.结果表明,打印态的RAFM钢微观组织为铁素体+回火马氏体的双相组织,平均晶粒尺寸约为1.51μm.经过热处理,RAFM钢的晶粒尺寸没有明显增长(1.84μm),并在微观组织中保留了高密度位错.此外,热处理后高数密度TiO2.次相纳米颗粒在基体中析出,并弥散分布在基体中,其尺寸在5~10 nm.热处理后的RAFM钢抗拉强度显著提高,断后伸长率略微下降,其室温抗拉强度为1080 MPa,在650℃下测试的抗拉强度仍可达2.5 MPa.创新点:(1)系统研究热处理对电弧熔丝增材制造低活化铁素体马氏体钢的相组成、晶粒尺寸、析出相的影响.(2.阐明热处理对电弧熔丝增材制造低活化铁素体马氏体钢力学性能的强化机制.

关键词：电弧熔丝增材制造低活化铁素体/马氏体钢热处理显微组织

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锂金属负极的改性策略的研究进展

功能材料 2021年第11期52卷 11009-11016,11022页

作者：张航彭钰函薛丽红张五星严有为华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室武汉430074

金属锂是下一代高能量密度二次电池的理想负极材料。但锂具有高的反应活性和还原性,造成其SEI膜不稳定、锂枝晶生长和体积膨胀效应等问题,从而限制了锂金属电池的实际应用。基于锂负极存在的问题,综述了锂负极、隔膜、人工SEI膜、电解... 详细信息

金属锂是下一代高能量密度二次电池的理想负极材料。但锂具有高的反应活性和还原性,造成其SEI膜不稳定、锂枝晶生长和体积膨胀效应等问题,从而限制了锂金属电池的实际应用。基于锂负极存在的问题,综述了锂负极、隔膜、人工SEI膜、电解液和固体电解质的改性策略,并对其未来的研究方向进行了展望。

关键词：锂负极隔膜 SEI膜电解质

Effect of vibration frequency on primary phase and properties of grey cast iron fabricated by lost foam casting

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china Foundry 2020年第1期17卷 1-7页

作者： Bo-tao Xiao Zi-tian Fan Wen-ming Jiang Jun-huai Xiang xue-fang yan Jiangxi key Laboratory of Surface Engineering Jiangxi Science and Technology Normal UniversityNanchang 330013China state key Laboratory of Material {2. and die&mould technology Huazhong University of Science&TechnologyWuhan 430074China

The properties of gray cast iron(GCI)are affected by density of matrix,size of flake graphite and primary *** this paper,the Y-type specimen of GCI was prepared by lost foam casting(LFC)with and without vibration,and the influence of vibration frequency on the density of matrix,size of primary phase,and properties of the GCI was *** results show that the length of the flake graphite and the size of the primary austenite in GCI firstly decrease and then increase with the increase of the vibration *** a vibration frequency of 35 Hz,the length of the flake graphite is the shortest,the primary austenite is the finest and the density of the matrix is the *** addition,the tensile strength,elongation and hardness of the GCI firstly increase and then decrease with the increase of the vibration frequency,due to the refinement of the primary phase and the increase of the matrix *** order to analyze the refinement mechanism of the primary phase of the GCI fabricated by the LFC with vibration,the solidification temperature fields of the GCI fabricated by the LFC with the vibration frequency of 0 and 35 Hz were *** results show that the vibration reduces the eutectic point of the GCI and increases the supercooling degree during the eutectic *** a result,the length of the flake graphite and the size of the primary austenite in GCI fabricated by LFC with the vibration frequency of 35 Hz decrease.

关键词： vibration frequency lost foam casting grey cast iron flake graphite properties