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A bottom-up strategy toward metal nano-particles modified graphene nanoplates for fabricating aluminum matrix composites and interface study

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Journal of Materials Science & Technology 2020年第11期42卷 21-32页

作者： tielong han Enzuo Liu Jiajun Li Naiqin Zhao Chunnian He School of Materials Science and Engineering Tianjin Key Laboratory of Composites and Functional MaterialsTianjin UniversityTianjin 300072China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin UniversityTianjin 300072China

To synthesize graphene economically and efficiently,as well as to improve the interface bonding between graphene and metal and to recede the aggregation issue of graphene,in this work,an easy and scalable bottom-up strategy for the mass production of metal nanoparticles modified graphene nanoplates(GNPs)was *** nanoparticles modified GNPs(Cu-GNPs)and Ni nanoparticles modified GNPs(Ni-GNPs)were fabricated through this method,and then compounded with Al via ball milling *** asobtained Ni-GNPs/Al composite showed simultaneously improved strength and toughness compared with unreinforced Al,while the Cu-GNPs/Al composite presented a greater strengthening *** microstructure and interface of the two composites were carefully characterized and investigated to reveal the *** principle study was also adopted to explore the binding energy of different interface *** study could provide new insights into the fabrication of GNPs and the control of interface in GNPs/Al composites.

关键词： Graphene nanoplates(GNPs) Nanocomposites Metal-matrix composites(MMCs) Interface

Effect of GNPs on microstructures and mechanical properties of GNPs/Al-Cu composites with different heat treatment status

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Journal of Materials Science & Technology 2021年第33期92卷 1-10页

作者： tielong han Fucheng Wang Jiajun Li Chunnian He Naiqin Zhao School of Materials Science and Engineering and Tianjin Key Laboratory of Composites and Functional Materials Tianjin UniversityTianjin 300072China Faculty of Materials and Manufacturing Key Laboratory of Advanced Functional MaterialsMinistry of Education of ChinaBeijing University of TechnologyBeijing 100124China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin UniversityTianjin 300072China

Microstructural and mechanical behavior of heat treatable Al-4.6Cu binary alloy reinforced with graphene nanoplates(GNPs) in different heat treatment status were investigated in this *** addition of GNPs significantly enhanced the yield strength and tensile strength of Al-Cu alloy regardless of the heattreatment *** was also found that GNPs accelerated the formation of precipitates,leading to a greatly shortened aging time for GNPs/Al-4.6Cu composite to reach the peak ***,aging treatment enhanced the strength of GNPs/Al-Cu composite very little,which could be explained by the interaction between GNPs,precipitates and *** work inspires us that the heat treatment process of aluminum alloy matrix composites should be designed independently with the matrix in quest of an optimum performance.

关键词： Metal matrix composites Al-Cu alloy Graphene nanoplates Heat treatment

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简述赫依偏盛性吉如很道力格苏勒病的诊疗

中国蒙医药（蒙） 2023年第12期18卷 152-156页

作者：萨茹拉韩铁龙不详

通过介导相分离制备的纳米结构W-Cu基复合材料的性能

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Engineering 2023年第7期26卷 173-184,I0007页

作者：侯超吕皓赵治 Xintao Huang 韩铁龙 Junhua Luan Zengbao Jiao 宋晓艳 Zuoren Nie Key Laboratory of Advanced Functional Materials Ministry of EducationFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

The challenge of fabricating nanostructured W–Cu composites by powder metallurgy has been solved by means of modulated phase separation.A hierarchically nanostructured(HN)W–Cu composite was prepared using intermediary Al through sluggish asynchronous phase *** addition to a dual network composed of a Cu phase and the W–Cu nanostructure,dense Al-containing nanoprecipitates with a body-centered cubic(bcc)structure are distributed in the W *** with a pristine W/Cu interface,the newly formed W/Cu interfaces modulated by Al and the coherent W/Al-containing particle interfaces possess lower energy and enhanced bonding strength due to efficient electron transfer and strong coupling *** a large number of stable heterogeneous interfaces and a“selflocking”geometry,the HN W–Cu composite exhibits excellent resistance against plastic *** combination of the presented composite’s hardness and compressive strength outperforms all other sintered W–Cu composites with the same Cu *** a reciprocating sliding load,the reactive Al prevents excessive *** excellent synergy of the hardness and toughness of the friction-induced surface endows the HN composite with high abrasion *** study provides a new strategy to modulate the structure and energy state of interfaces in metallic composites containing immiscible components in order to achieve high mechanical performance.

关键词： Immiscible-component composite Phase separation Nanostructure Mechanical properties Interface modulation

Prevalence of echocardiographic abnormalities in HIV-infected adults on long-term combination antiretroviral therapy

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中华医学杂志(英文版) 2024年第19期

作者： Luo Ling Li Xiaodi Song Xiaojing Lyu Wei Liu Zhengyin Wang Huanling han Yang Li Xiaoxia Li Yanling Chen tielong Xiong Yong He Yun Li Huiqin Ye hanhui Cao Wei Li Taisheng Department of Infectious Diseases Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing China Department of Infectious Diseases Zhongnan Hospital of Wuhan University Wuhan Hubei China National Clinical Research Center for Infectious Diseases HKU AIDS Institute Shenzhen Research Laboratory The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology Shenzhen Guangdong China Department of HIV/AIDS Clinical Research Yunnan Provincial Hospital of Infectious Disease AIDS Care Center (YNACC) Kunming Yunnan China Department of infection Mengchao Hepatobiliary Hospital of Fujian Medical University Fuzhou Fujian China Department of Basic Medical Sciences School of Medicine Tsinghua University Beijing China Tsinghua-Peking Center for Life Sciences Beijing China State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College Hospital Chinese Academy of Medical Science and Peking Union Medical College Beijing China

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有机粘结剂状态对硬质合金增材制造的影响

中国体视学与图像分析 2022年第2期27卷 146-155页

作者：王悦赵治陈健王海滨韩铁龙单宇鹏刘雪梅宋晓艳北京工业大学材料与制造学部/新型功能材料教育部重点实验室北京100124

有机粘结剂被广泛应用于选区激光烧结等硬质合金3D打印技术中。本文通过机械混合与溶胶凝胶法制备了两种含有不同有机粘结剂的硬质合金生坯,研究有机粘结剂的含量、分布和粒径等参数对硬质合金块体烧结致密化的影响。通过宏观与微观体... 详细信息

有机粘结剂被广泛应用于选区激光烧结等硬质合金3D打印技术中。本文通过机械混合与溶胶凝胶法制备了两种含有不同有机粘结剂的硬质合金生坯,研究有机粘结剂的含量、分布和粒径等参数对硬质合金块体烧结致密化的影响。通过宏观与微观体视学表征技术对样品的组成和结构进行了分析。结果表明,有机粘结剂对烧结效果的影响是多种因素共同作用的结果。烧结产物的致密度随有机粘结剂含量升高而降低,随有机粘结剂粒径降低、分布均匀度提高而上升。本研究显示,对烧结质量的优化不能单纯依靠降低有机相含量,而应综合考虑影响有机相微观状态的各种因素。

关键词：增材制造硬质合金有机粘结剂体视学表征致密度

Inducible Rubicon facilitates viral replication by antagonizing interferon production

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Cellular & Molecular Immunology 2017年第7期14卷 607-620页

作者： Yushun Wan Wei Cao Tao han Sheng Ren Jian Feng tielong Chen Jun Wang Ruth Broering Mengji Lu Ying Zhu State Key Laboratory of Virology and College of Life Sciences Wuhan UniversityWuhan 430072China Department of Infectious Diseases Zhongnan Hospital of Wuhan UniversityWuhan 430072China Medical Faculty Department of Gastroenterology and HepatologyUniversity of Duisburg-EssenEssen 45127Germany Institute of Virology University of Duisburg-EssenEssen 45127Germany

The RUN domain Beclin-1-interacting cysteine-rich-containing(Rubicon)protein is involved in the maturation step of autophagy and the endocytic pathway as a Beclin-1-binding partner,but little is known regarding the role of Rubicon during viral ***,we performed functional studies of the identified target in interferon(IFN)signaling pathways associated with Rubicon to elucidate the mechanisms of viral resistance to *** Rubicon protein levels were elevated in peripheral blood mononuclear cells,sera and liver tissues from patients with hepatitis B virus(HBV)infection relative to those in healthy *** of the overexpression and knockdown of Rubicon showed that Rubicon significantly promoted HBV *** addition,Rubicon knockdown resulted in the inhibition of enterovirus 71,influenza A virus and vesicular stomatitis *** expression o0f Rubicon led to the suppression of virus-induced type-I interferon(IFN-αand IFN-β)and type-III interferon(IFN-λ1).Translocation of activated IRF3 and IRF7 from the cytoplasm to the nucleus was involved in this process,and the NF-κB essential modulator(NEMO),a key factor in the IFN pathway,was the target with which Rubicon *** results reveal a previously unrecognized function of Rubicon as a virus-induced protein that binds to NEMO,leading to the inhibition of type-I interferon *** thus functions as an important negative regulator of the innate immune response,enhances viral replication and may play a role in viral immune evasion.

关键词： host response immune evasion interferon Rubicon viral infection

4-4 Vacancy Like Defects in WFeNi Alloys Induced with H Ion Irradiation at 600℃

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IMP & HIRFL Annual Report 2016年第1期 112-114页

作者： Cui Minghuan Wang Zhiguang Shen tielong Zhu Yabin Pang Lilong Li Bingsheng Yao Cunfeng Wang Dong han Yi 不详

WFeNi alloys are extensively used in making penetrators against armor plates,balance supporting systems for airplanes and high-speed trains,blocking devices for radioactive-and X-rays,and containers for radioactive materials,etc.,due to its advantages such as high density,high strength,good machinability and *** microstructure of WFeNi alloys after the irradiation of ions would change,which may affect the mechanical properties of the *** is very meaningful to investigate this issue.

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Solar zenith angle-dependent asymmetries in Venusian bow shock location revealed by Venus Express

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Solar zenith angle-dependent asymmetries in Venusian bow sho...