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In-situ Formed AIN Particulates and TiN Whiskers Mixture Reinforced Al composite

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Journal of materials Science & Technology 1996年第5期12卷 365-368页

作者： Chunxiang CUI renjie wu and Guoding ZHANG (institute of composite materials, shanghai jiao tong university, shanghai 200030, china) institute of composite materials Shanghai Jiao Tong University Shanghai 200030 China

The TiNw-AINp/Al composite has been successfully fabricated by gas-liquid reaction method in an intensive electromagnetic mixing and casting in an appropriate cooling condition. The as-cast samples of the composite exhibit a homogeneous distribution of TiNw and AINp, and the in situ formed TiN whisker has a mean diameter of 0.5 μm and mean aspect ratio of 5.8~7.5, and the diameter of the AIN particulates is less than 5 μm. TEM observation indicates that there exist some submicron and nanometer sized in situ formed TiNw-AINp in α-Al matrix. The formation mechanism of in situ formed TiNw and AINp is also discussed

关键词： Al TiN AIN AlN

EFFECT OF OXIDATION OF SiC ON AGING CHARACTERISTICS OF SiC PARTICLES AND SHORT MULLITE FIBERS REINFORCED 2024Al composite

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中国有色金属学会会刊：英文版 1998年第4期8卷 61-65页

作者： Mei Zhi Department of materials, Huazhong university of Science and Technology, wuhan 430074, P. R. china Jin Yanping, Gu Mingyuan and wu renjie State Key Laboratory of Metal Matrix composites, shanghai jiao tong university, shanghai 200030, P. R.

ＩＮＴＲＯＤＵＣＴＩＯＮＡｇｉｎｇｔｒｅａｔｍｅｎｔｈａｓｂｅｅｎｗｉｄｅｌｙｕｓｅｄａｓａｆｕｒｔｈｅｒｓｔｒｅｎｇｔｈｅｎｉｎｇｍｅａｎｓｆｏｒａｌｕｍｉｎｕｍｍａｔｒｉｘｃｏｍｐｏｓｉｔｅｓ．Ｓｔｕｄｙｏｆｃ... 详细信息

ＩＮＴＲＯＤＵＣＴＩＯＮＡｇｉｎｇｔｒｅａｔｍｅｎｔｈａｓｂｅｅｎｗｉｄｅｌｙｕｓｅｄａｓａｆｕｒｔｈｅｒｓｔｒｅｎｇｔｈｅｎｉｎｇｍｅａｎｓｆｏｒａｌｕｍｉｎｕｍｍａｔｒｉｘｃｏｍｐｏｓｉｔｅｓ．Ｓｔｕｄｙｏｆｃｏｍｐｏｓｉｔｅｓ’ａｇｉｎｇｌａ...

关键词： aluminum matrix composite SiC mullite fiber 2024Al alloy aging

The Mechanism on Their Sustainable Reuse for SiCp/AlMatrix composites and the Controllable Methods duringRemelting and Recycling

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The Mechanism on Their Sustainable Reuse for SiCp/AlMatrix C...

Interfacial reaction between the oxidized SiC particles and Al-Mg alloys

第十三届国际复合材料会议

作者： Zhongliang Shi tongxiang Fan renjie wu Mingyuan Gu Di Zhang J. C. Lee and H. I. Lee State Key Laboratory of Metal Matrix composites shanghai jiao tong university shanghai 200030 chinaDivision of materials Science and Engineering Korea institute of Science and Technology Cheongryang P. O. Box 131 Seoul 136-791 Korea

＜正＞Research Background Commercial motivation is directed toward the development of as cost-effective aluminum matrix composites with SiC particles （SiCp） as reinforcement. These applications in aerospace components, automotive parts and electronic packaging arise out of unique combination of properties such as high specific strength and specific modulus, high thermal conductivity and low coefficient of thermal expansion and good wear resistance etc. Moreover, they are attracted in their competitive costs of fabrication in commercial use. During the last decades, a large research effort has concentrated on developing and understanding various processes for the fabrication of SiCp/Al composites and effectual controlling the interracial reaction between SiCp and aluminum. All various characteristics of

关键词： SiCp/Al composite oxidized SiCp/Al composite interfacial reaction mechanical property sustainable reuse thermostable phase nanosized MgO

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Chinese Science Bulletin 2001年第23期46卷 1948-1952页

作者： SHI Zhongliang GU Mingyuan LIU Junyou LIU Guoquan LEE Jae-chul ZHANG Di wu renjie State Key Lab of Metal Matrix composites Shanghai Jiao Tong UniversityShanghai 200030China School of materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Division of materials Science and Engineering Korea Institute of Sciecne and TechnologyP.O.Box 131CheongryangSeoulKorea

The interfacial reactions of oxidized SiC particles reinforced Al-Mg matrix composites were investigated by the field emission-scanning electron microscopy (FE-SEM), TEM and X-ray diffraction. It was found that the nanoscale MgO forms initially due to the interfacial reaction, then whether it reacts with molten Al continuously or not depends on the content of Mg in the matrix and its covering densification at the surface of particles. When there is not enough Mg in the matrix for the formation of dense MgO layer, MgO will transform into MgAl2O4 crystal owing to the continuous reaction with SiO2 and molten Al. When dense MgO layer forms at the surface of the particles due to the affluence of Mg for the initial reaction, it will protect the inner SiC from the attack of molten Al. However, the reaction products of both MgO and MgAl2O4 are thermo-stable phases at the surface of the particles under high temperature. The results clarify the interfacial reaction route and they are of great value to the

关键词： oxidized SiC particle Al-Mg matrix composite interfa- cial reaction FE-SEM nanoscale MgO MgAl2O4.

Synthesized Multi-station Tribo-test System for Bio-tribological Evaluation in Vitro

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Chinese Journal of Mechanical Engineering 2016年第4期29卷 853-861页

作者： wu tonghai DU Ying LI Yang WANG Shuo ZHANG Zhinan Key Laboratory for Modern Design and Rotor-Bearing System of Ministry of Education Xi'an Jiaotong University State Key Laboratory of Mechanical Transmissions Chongqing University School of Mechanical Engineering Shanghai Jiao Tong University

Tribological tests play an important role on the evaluation of long-term bio-tribological performances of prosthetic materials for commercial *** tests focus on the motion simulation of a real joint in vitro with only normal loads and constant velocities,which are far from the real friction behavior of human joints characterized with variable loads and multiple *** order to accurately obtain the bio-tribological performances of artificial joint materials,a tribological tester with a miniature four-station tribological system is proposed with four distinctive ***,comparability and repeatability of a test are ensured by four equal stations of the ***,cross-linked scratch between tribo-pairs of human joints can be simulated by using a gear-rack meshing mechanism to produce composite *** this mechanism,the friction tracks can be designed by varying reciprocating and rotating ***,variable loading system is realized by using a ball-screw mechanism driven by a stepper motor,by which loads under different gaits during walking are ***,dynamic friction force and normal load can be measured *** verifications of the performances of the developed tester show that the variable frictional tracks can produce different wear debris compared with one-directional tracks,and the accuracy of loading and friction force is within ？5%.Thus the high consistency among different stations can be ***,the proposed tester system could provide more comprehensive and accurate bio-tribological evaluations for prosthetic materials.

关键词： artificial joint multi-station tribological tester bio-tribology testing system

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research institute Co. LtdBeijing Beijing institute of Technology Beijing Beijing Normal university Beijing Brown university ProvidenceRI Budker institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china institute of Atomic Energy Beijing china Jiliang university HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china university of Geosciences Beijing china university of Geosciences WuhanHubei china university of Mining and Technology XuzhouJiangsu china West Normal university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcroft institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint institute for Nuclear Research(DLNP JINR) Dubna East china university Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

外源性脉冲电磁场干扰下的心脏起搏器“窗口效应”及防护

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上海交通大学学报 2022年第11期56卷 1518-1531页

作者：卢武丁苒苒赵文彬黄冬王哲铭上海电力大学电气工程学院上海200090 上海交通大学附属第六人民医院心内科上海200233

现代电网和医疗环境中广泛存在的脉冲电磁场对起搏器佩戴者潜在的电磁干扰不容忽视,但目前缺乏对此类暂态电磁干扰发生机制和防护措施的系统研究.将猪肉组织浸入0.9%氯化钠溶液,构建起搏器术后人体等效离体模型,采用快波前特性电流模拟... 详细信息

现代电网和医疗环境中广泛存在的脉冲电磁场对起搏器佩戴者潜在的电磁干扰不容忽视,但目前缺乏对此类暂态电磁干扰发生机制和防护措施的系统研究.将猪肉组织浸入0.9%氯化钠溶液,构建起搏器术后人体等效离体模型,采用快波前特性电流模拟常见电力设备投切过程和低频脉冲式医疗设备产生的脉冲电磁场对起搏器佩戴者的影响.基于脉冲形成线理论,对脉冲电磁场在胸腔结构中的波型压缩特性进行分析.进一步通过有限元软件建立起搏器与组织结构结合的参数化生物电磁暂态模型.研究结果表明,起搏器在脉冲电磁场中会产生心电图P波尖顶、过感知等故障,通过改变囊袋中导线缠绕方式发现起搏器在电磁干扰环境下,囊袋回路存在“窗口效应”.基于此发现,提出使用复合材料进行“窗口”屏蔽的防护策略,并通过仿真验证该方法可将脉冲电磁场对起搏器的电磁干扰强度有效降低80 dB,初步印证了该防护措施的理论可行性.最后,为电网环境和医疗环境下起搏器佩戴者制定了安全距离.

关键词：起搏器电磁干扰脉冲电磁场强场及其效应电磁耦合窗口

Medical Additive Manufacturing: From a Frontier Technology to the Research and Development of Products

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Engineering 2020年第11期6卷 1217-1221页

作者： Guixing Qiu Wenjiang Ding Wei Tian Ling Qin Yu Zhao Lianmeng Zhang Jian Lu Daijie Chen Guangyi Yuan Chengtie wu Bingheng Lu Ruxu Du Jimin Chen Mo Elbestawi Zhongwei Gu Dichen Li Wei Sun Yuanjin Zhao Jie He Dadi Jin Bin Liu Kai Zhang Jianmo Li Kam WLeong Dewei Zhao Dingjun Hao Yingfang Ao Xuliang Deng Huilin Yang ShaoKeh Hsu Yingqi Chen Long Li Jianping Fan Guohui Nie Yun Chen Hui Zeng Wei Chen Yuxiao Lai Department of Orthopedics Peking Union Medical College HospitalChinese Academy of Medical Science 8 Peking Union Medical CollegeBejjing 100730.China National Engineering Research Center of Light Alloys Net Forming&State Key Laboratony of Metal Matrix composite Shanghai Jiao Tong UniversityShanghai 200240China Notional Engineering Research Center of Mg materials and Applicarions and School of materials Science 8r Engineering.shanghai Jlao tong university Shanghai 200240China Department of Spine Surgery Beijing Jishuitan HospitalBeijing 100035China Center for Troanslational Medicine Research and Development Institute of Biomedical and Health EngineeringShenzhen Insitute of Advanced Technology.Chinese Academy of SciencesShenzhen 518055China Guangdong Engineering Laboratony of Biomaterials Additive Manufacturing Guangdong 518055China Musculoskeletal Research Laboratory of the Department of Orthopedics 8 Traumatology and Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong 999077.China State Key Laboratory of Advanced Technology for materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Center for Advanced Structural materials City University of Hong Kong Shenzhen Research InstiuteShenzhen 518057.China Hong Kong Branch of National Precious Metals Material Engineering Research Center Department of Material Science and EngineeringCity Untiversity of Hong KongHong Kong 999077.China Department of Mechanical Engineering ity Untiversity of Hong Kong.Hong Kong 9977 China School of Pharmacy.shanghai jiao tong university Shanghai 200240China china State Instute of Pharmaceutical Industry Shanghai Institute of Pharmaceutical IndustryShonghai 201203China shanghai Innovation Instinute for materials Shanghai 200444.China State Key Laboratory of High-Performance Ceramies and Superfine Microstructure Shanghai Institute of CeramicsChinese Acadermy 0f SciencesShanghai 200050Ch

*** and development(R&D)and the challenges of raw materials for medical additive manufacturing Raw materials for medical additive manufacturing have a wide range of commonalities that are also seen in many other fields,making them an important basis in the field of three-dimensional(3D)*** and challenges related to material types,powder properties,formability,viscoelasticity,and so forth also share common *** example,many metal materials are used in the field of aviation,while metals,polymers,and inorganic materials are used in the field of *** most widely used materials in biomedicine are *** homogeneous and non-homogeneous composites are also available for 3D printing,and impose an additional challenge in additive manufacturing;the use of heterogeneous composites in 3D printing is particularly challenging.

关键词： composites printing additive

基于X射线CT原位试验的平纹SiC/SiC复合材料拉伸损伤演化

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上海交通大学学报 2020年第10期54卷 1074-1083页

作者：刘海龙张大旭祁荷音伍海辉郭洪宝洪智亮陈超张毅上海交通大学船舶海洋与建筑工程学院上海200240 中国航发商用航空发动机有限责任公司上海201180 西北工业大学超高温结构复合材料重点实验室西安710072

采用化学气相渗透工艺制备平纹SiC/SiC复合材料,利用X射线CT无损检测技术研究纺织陶瓷基复合材料拉伸损伤演化与失效机理.制备了第3代SiC纤维增韧平纹叠层SiC/SiC狗骨状试件.研制了CT原位拉伸测试仪,完成了纳米X射线CT原位拉伸试验,对C... 详细信息

采用化学气相渗透工艺制备平纹SiC/SiC复合材料,利用X射线CT无损检测技术研究纺织陶瓷基复合材料拉伸损伤演化与失效机理.制备了第3代SiC纤维增韧平纹叠层SiC/SiC狗骨状试件.研制了CT原位拉伸测试仪,完成了纳米X射线CT原位拉伸试验,对CT扫描三维重建图像和扫描电镜照片进行了分析.结果表明:纳米X射线CT原位试验能够揭示材料拉伸损伤演化过程.平纹SiC/SiC复合材料单轴拉伸应力-应变曲线呈现明显的非线性特征,损伤萌生于非线性变化阶段.首先,出现基体横向开裂,并随着拉力的增加逐渐扩展.其次,出现层间基体开裂和纤维束基体纵向开裂,并逐渐扩展至纤维束宽度.最后,拉伸方向纤维断裂,材料失效,大多基体横向裂纹闭合,但纵向纤维束与束间基体分离严重,断口参差不齐,有明显的纤维拔出现象.

关键词：复合材料原位试验缺陷损伤演化失效机理