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Effect of parameters on interface of the brazed ZrO_2 ceramic and Ti-6Al-4V joint using Ti-based amorphous filler

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Acta Metallurgica Sinica(English Letters) 2012年第2期25卷 89-94页

作者： Yuhua LIU Jiandong HU Yaping ZHANG zuoxing guo Yue YANG Key Laboratory of Automobile Materials Ministry of Education College of Materials Science and Engineering Jilin University Changchun 130025 China Key Laboratory of Advanced Structural Materials Ministry of Education Changchun University of Technology Changchun 130012 China

A commercially available Ti47Zr2sCu14Nin （at. pct） amorphous filler foil was used to join ZrO2 ceramic and Ti-6A1-4V alloy. According to experimental observations, the interface microstructure accounts for the mechanical properties of the joints. The effects of brazing conditions and parameters on the joint properties were investigated. The joint shear strength showed the highest value of about 108 MPa and did not monotonously increase with the brazing time increasing. It was shown that decreasing of brazing cooling rate and appropriate filler foil thickness gave higher joint strength.

关键词： Brazing Amorphous filler Brazing parameter Interface mi- crostructure Shear strength

Mesoporous TiO2 Nanofiber as Highly Efficient Sulfur Host for Advanced Lithium–Sulfur Batteries

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Chinese Journal of Mechanical Engineering 2019年第4期32卷 207-212页

作者： Xinyu Shan zuoxing guo Xu Zhang Jie Yang Lianfeng Duan Key Laboratory of Automobile Materials School of Materials Science and Engineering Jilin University Changchun 130025China Advanced Institute of Materials Science & Department of Materials Science and Engineering Changchun University of Technology Changchun 130012 China

Currently, lithium–sulfur batteries su er from several critical limitations that hinder their practical application, such as the large volumetric expansion of electrode, poor conductivity and lower sulfur utilization. In this work, TiO2 nanofibers with mesoporous structure have been synthesized by electrospinning and heat treating. As the host material of cathode for Li–S battery, the as prepared samples with novelty structure could enhance the conductivity of cathode composite, promote the utilization of sulfur, and relieve volume expansion for improving the electrochemical property. The initial discharge capacity of TiO2/S composite cathode is 703 mAh/g and the capacity remained at 652 mAh/g after 200 cycles at 0.1 C, whose the capacity retention remains is at 92.7%, demonstrating great prospect for application in high-performance Li–S batteries.

关键词： TiO2 nanofibers Mesoporous structure Lithium–sulfur batteries Cathode Electrochemical property

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基础设施网络上PageRank算法的应用

计算机应用与软件 2018年第11期35卷 118-121,178页

作者：李泽荃郭作星申咪华北科技学院北京101601 北京印刷学院北京102600

在一个实际的航空交通控制网络上,引入PageRank算法进行重要节点排序。为论证PageRank算法对于网络中重要节点的识别能力,将其与其他三种节点排序方法进行对比。通过灾害蔓延动力学模型进行模拟验证,结果表明:相比于其他三种排序方法,Pa... 详细信息

在一个实际的航空交通控制网络上,引入PageRank算法进行重要节点排序。为论证PageRank算法对于网络中重要节点的识别能力,将其与其他三种节点排序方法进行对比。通过灾害蔓延动力学模型进行模拟验证,结果表明:相比于其他三种排序方法,PageRank算法具有较强的重要节点识别能力,可以用于基础设施网络上重要节点的排序。

关键词：基础设施网络 PageRank算法重要节点排序灾害蔓延模型

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凝聚态自反应材料激光点火理论模型

应用激光 2001年第1期21卷 9-12页

作者：沈平连建设胡建东郭作兴孙炳云吉林大学南岭校区长春130025

基于热理论建立了凝聚态自反应材料的一维激光点火理论模型，并对其作了解析以揭示点火延迟时间与激光处理参数和材料特征之间的关系。尝试进行了激光点燃Ｎｉ－３３．３ａｔ％Ａｌ粉末压坯的实验，并将实验值与计算值做了对比以验证模... 详细信息

基于热理论建立了凝聚态自反应材料的一维激光点火理论模型，并对其作了解析以揭示点火延迟时间与激光处理参数和材料特征之间的关系。尝试进行了激光点燃Ｎｉ－３３．３ａｔ％Ａｌ粉末压坯的实验，并将实验值与计算值做了对比以验证模型的合理性。结果表明计算值与实验值吻合较好。因此，激光辐射点火从根本上应归结于热的作用。

关键词：激光点火自蔓延高温合成模型凝聚态自适应材料

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激光熔覆参数对灰铸铁激光熔覆层裂纹的影响

应用激光 2000年第2期20卷 53-56,60页

作者：栾景飞胡建东周振丰孙大谦郭作兴王红颍吉林工业大学材料科学与工程学院长春130025

通过调整激光熔覆工艺参数 ,对灰铸铁激光熔覆层裂纹问题的研究 ,发现表层裂纹率随激光扫描速度或激光功率的增加有最低值。结合激光熔覆工艺参数 ,分析了残余拉伸应力的变化 ,熔覆层树状晶的结晶方向及渗碳体组织长度和粗细程度的改变 ... 详细信息

通过调整激光熔覆工艺参数 ,对灰铸铁激光熔覆层裂纹问题的研究 ,发现表层裂纹率随激光扫描速度或激光功率的增加有最低值。结合激光熔覆工艺参数 ,分析了残余拉伸应力的变化 ,熔覆层树状晶的结晶方向及渗碳体组织长度和粗细程度的改变 ,同时也分析了珠光体的形态及分布与离异共晶的有无 ,解析了不同激光熔覆工艺参数形成不同裂纹率的原因。

关键词：激光熔覆铸铁裂纹

溶胶-凝胶低温燃烧法合成Ce_(1-x)Gd_xO_(2-x/2)固体氧化物纳米粉

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中国稀土学报 2002年第Z2期20卷 116-118页

作者：高冬梅李朝辉连建设胡建东郭作兴吉林大学材料科学与工程学院教育部汽车材料重点实验室吉林长春130025

采用溶胶凝胶低温燃烧法合成出Ce1-xGdxO2-x/2(x=0,0.05,0.10,0.15,0.20,0.30)固体氧化物纳米粉。将用Sol Gel法制成的干凝胶加热至300℃左右使之发生燃烧反应,再将燃烧产物在600℃焙烧2h,即可形成单相萤石结构的氧化物粉体,其平均晶... 详细信息

采用溶胶凝胶低温燃烧法合成出Ce1-xGdxO2-x/2(x=0,0.05,0.10,0.15,0.20,0.30)固体氧化物纳米粉。将用Sol Gel法制成的干凝胶加热至300℃左右使之发生燃烧反应,再将燃烧产物在600℃焙烧2h,即可形成单相萤石结构的氧化物粉体,其平均晶粒直径为20nm左右。

关键词：稀土溶胶-凝胶法燃烧合成纳米材料

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球墨铸铁激光表面熔覆的组织和性能

吉林工业大学学报 1995年第1期25卷 74-77页

作者：郭作兴王红颖李玉龙胡建东

采用２ｋＷＣＯ２激光器对球墨铸铁进行镍基粉末表面熔覆合金化处理。研究结果表明：在熔层中存在ＡｌＮｉ，Ａｌ３Ｎｉ．ＮｉＣｒＦｅ等新相；熔层显微硬度高于基体材料；熔覆后材料的耐蚀性提高；随着扫描速度的增大，组织形貌由粗大... 详细信息

采用２ｋＷＣＯ２激光器对球墨铸铁进行镍基粉末表面熔覆合金化处理。研究结果表明：在熔层中存在ＡｌＮｉ，Ａｌ３Ｎｉ．ＮｉＣｒＦｅ等新相；熔层显微硬度高于基体材料；熔覆后材料的耐蚀性提高；随着扫描速度的增大，组织形貌由粗大的树枝晶变为细小的等轴晶。

关键词：球墨铸铁表面合金化激光熔覆

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钢铁材料激光淬硬层中的残留奥氏体

金属热处理 1999年第5期24卷 14-15页

作者：胡建东栾景飞郭作兴关庆丰吉林工业大学材料科学与工程学院

对多种钢铁材料激光处理区中的残留奥氏体的组织形貌、合金元素固溶度及其各种性质进行了讨论。

关键词：残留奥氏体钢铁材料激光淬硬层

Efficacy and safety of chemotherapy combined with bevacizumab in Chinese patients with metastatic colorectal cancer:A prospective,multicenter,observational,non-interventional phaseⅣtrial

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Chinese Journal of Cancer Research 2021年第4期33卷 490-499页

作者： Fenghua Wang Guanghai Dai Yanhong Deng Yong Tang Wei Wang zuoxing Niu Feng Bi Liangjun Zhu Zengqing guo Jin Yan Bing Hu Min Tao Shujun Yang Suzhan Zhang Lu Wen Ruihua Xu Department of Medical Oncology Sun Yat-sen University Cancer CenterGuangzhou 510060China Department of Medical Oncology Chinese PLA General HospitalBeijing 100853China Department of Medical Oncology the Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China Department of Medical Oncology Xinjiang Medical University Cancer HospitalUrumqi 830000China Department of Medical Oncology Foshan First People’s HospitalFoshan 528010China Department of Medical Oncology Shandong Cancer HospitalJinan 250117China Department of Medical Oncology West China Hospital of Sichuan UniversityChengdu 610041China Department of Medical Oncology Jiangsu Cancer HospitalNanjing 210009China Department of Medical Oncology Fujian Cancer HospitalFuzhou 350014China Department of Surgical Oncology Sichuan Cancer HospitalChengdu 610041China Department of Medical Oncology Anhui Provincial HospitalHefei 230001China Department of Medical Oncology the First Affiliated Hospital of Soochow UniversitySuzhou 215006China Department of Medical Oncology Henan Cancer HospitalZhengzhou 450003China Department of Medical Oncology the Second Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310009China Department of Medical Oncology Shanxi Provincial Cancer HospitalTaiyuan 030009China

Objective:Bevacizumab has an important and evolving role in improving outcomes in patients with metastatic colorectal cancer(mCRC)worldwide and was approved in China in ***,there are limited real-world data on the efficacy and safety of chemotherapy regimens combined with bevacizumab in Chinese patients with *** observational,phase IV trial study aimed to obtain more experience on the efficacy and safety of bevacizumab combined with chemotherapy in Chinese mCRC ***:Between September 2013 and November 2016,patients with histologically confirmed mCRC were enrolled in a prospective,multicenter,observational,non-interventional phase IV trial at 26 centers across *** patients received different chemotherapeutic regimens combined with *** efficacy and safety data in the intention-to-treat study population were ***:A total of 611 patients were included in the efficacy *** median overall survival and median progression-free survival was 18.00 and 10.05 months,*** objective response rate was 21.00%and disease control rate was 89.40%.In subgroup analyses,the survival differences were observed according to metastatic status,duration of treatment and elevation in blood pressure.A total of 613 patients were evaluable for safety *** 569(92.82%)patients reported at least one adverse event(AE),and 151(24.63%)experienced grade 3 or higher *** incidence of bevacizumab-associated AEs of special interest was reported in 31(5.06%)patients with hypertension(n=12),abscesses and fistulae(n=7),bleeding(n=6),proteinuria(n=3),gastrointestinal perforation(n=2)and venous thrombotic events(n=1).Conclusions:This observational phase IV trial broadens our experience and knowledge of bevacizumab in the Chinese population and provides a good indication of its overall efficacy and *** in combination with chemotherapy offers clinical benefits to Chinese patients with mCRC and has an acce

关键词： Metastatic colorectal cancer bevacizumab chemotherapy efficacy safety