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Plastic Deformation of Nano-TiO_2 Ceramics Prepared by Different Methods

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Journal of Materials Science & Technology 1999年第1期15卷 71-74页

作者： zuolin cui(Research Center of Nanostructure Materials, Qingdao Institute of Chemical Technology, 266042 Qingdao, China) Research Center of Nanostructure Materials Qingdao Institute of Chemical Technology 266042 Qingdao China

The comparative study of the tensile plastic deformation of nano(n)-TiO2 ceramic prepared byphysical gas condensation (P) and chemical hydrolysis precipitation (C) methods was conductedby a gas pressure forming technique at 750~800℃. The results show that n-TiO2 (P) possessesexcellent property of tensile pIastic deformation comparing with n-TiO2(C). The reason for thisis attributed to the surface cleanness and soft agglomeration of n-TiO2 (P) particfe prepared inreIatively cIean vacuum condition.

关键词： TiO Nano Plastic Deformation of Nano-TiO2 Ceramics Prepared by Different Methods

Nano-composite Particles Synthesized by a Hydrogen Arc Plasma

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Journal of Materials Science & Technology 1997年第4期13卷 315-317页

作者： zuolin cui Zhikun ZHANG Chuncheng HAO Lifeng DONG Zhaoguo MENG and Liyan YU(Research Center of Nanostructured Materials, Qingdao Institute of Chemical Technology Qingdao 266042, China) Research Center of Nanostructured Materials Qingdao Institute of Chemical Technology Qingdao 266042 China

Nano-composite particles can be synthesized by a hydrogen arc plasma method, which possesses the advantages of high productivity, controllable size distribution and low electric energy consumption comparing with conventional gas condensation method. With this method, not only the nanoparticles of metals and alloys, but also the nano-composite particles with shell structure can be synthesized. The microstructures, compositions and the formation mechanism of the nano composite particles were studied

关键词： Nano-composite Particles Synthesized by a Hydrogen Arc Plasma Arc

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单晶纳米钽粉的电弧等离子体法制备

稀有金属材料与工程 2005年第2期34卷 309-311页

作者：王毅崔作林张志焜青岛科技大学山东青岛266042

采用电弧等离子体法成功制备了单晶态的纳米钽超微粒子,采用透射电子显微镜(TEM)、高分辨电子显微镜(HRTEM)对样品进行形貌、微观结构的观察和分析,发现它具有规则的表面,平均粒径大小在 10 nm 左右。并通过 X射线衍射(XRD)分析其组成成... 详细信息

采用电弧等离子体法成功制备了单晶态的纳米钽超微粒子,采用透射电子显微镜(TEM)、高分辨电子显微镜(HRTEM)对样品进行形貌、微观结构的观察和分析,发现它具有规则的表面,平均粒径大小在 10 nm 左右。并通过 X射线衍射(XRD)分析其组成成分,发现在所制备的样品中除钽外还含有氧化钽(δ-TaO),估计是由于纳米钽粒子被氧化所形成的产物。

关键词：单晶纳米钽粉电弧等离子体法

ZnO异质复合对纳米TiO_2晶型转变和晶粒生长的影响

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硅酸盐学报 2006年第9期34卷 1078-1083页

作者：王志义史献峰崔作林青岛科技大学材料与环境科学学院山东青岛266042

以TiCl4,ZnSO4溶液为原料,采用液相沉淀法制备了不同ZnO/TiO2摩尔比的纳米复合粉体。对合成的纳米复合晶的相变、晶粒生长过程以及紫外-可见光吸收性能进行了研究。结果表明:纳米TiO2经ZnO复合后,其晶型转变和晶粒生长均受到抑制。当ZnO... 详细信息

以TiCl4,ZnSO4溶液为原料,采用液相沉淀法制备了不同ZnO/TiO2摩尔比的纳米复合粉体。对合成的纳米复合晶的相变、晶粒生长过程以及紫外-可见光吸收性能进行了研究。结果表明:纳米TiO2经ZnO复合后,其晶型转变和晶粒生长均受到抑制。当ZnO为30%(摩尔分数)时,且采用氨水滴入TiCl4和ZnSO4溶液中的沉淀方式制备的ZnO/TiO2纳米复合晶的晶型转变和晶粒生长最缓慢。紫外-可见光吸收测试表明:800℃煅烧的ZnO/TiO2复合粉体的吸收强度比纯TiO2的高;900～1050℃煅烧的复合粉体,虽然紫外区的吸收强度有所下降,但其光吸收带边比纯TiO2纳米晶的有显著红移。

关键词：锐钛矿氧化锌/二氧化钛纳米复合粉体光吸收

耐高温Al_2O_3/TiO_2纳米复合粉体的制备及表征

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材料导报 2006年第F05期20卷 211-213页

作者：王志义史献峰崔作林青岛科技大学材料与环境科学学院

以TiCl4、Al2（SO4）3为原料，采用液相沉淀法制备了Al2O3／TiO2纳米复合粉体，同时对该纳米复合粉体的相变过程和晶粒生长过程进行了详细的研究，对紫外-可见光吸收进行了检测。结果表明：纳米TiO2粉体经Al2O3复合后，其耐温性能得到... 详细信息

以TiCl4、Al2（SO4）3为原料，采用液相沉淀法制备了Al2O3／TiO2纳米复合粉体，同时对该纳米复合粉体的相变过程和晶粒生长过程进行了详细的研究，对紫外-可见光吸收进行了检测。结果表明：纳米TiO2粉体经Al2O3复合后，其耐温性能得到极大提高，复合粉体经950℃煅烧后锐钛矿相含量仍然在77％，晶体粒径在20nm左右；锐钛矿向金红石晶型的转变温度在950-1100℃的高温区。复合粉体在低温煅烧后，紫外-可见吸收强度较纯纳米TiO2有较大提高。高温煅烧后。复合晶的紫外光吸收红移．

关键词：锐钛矿 Al2O3/TiO2 纳米复合粉体光吸收

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高结构导电炭黑填充硅橡胶复合材料的性能

合成橡胶工业 2000年第6期23卷 366-369页

作者：陈克正杜芳林崔作林张华凯青岛化工学院材料科学技术系山东青岛266042 青岛汉河电缆有限公司山东青岛266110

研究了导电炭黑(HG -CB)的高结构对乙烯基甲基硅橡胶(VMQ -110)复合材料电性能和机械性能的影响。由TEM观察看出 ,随HG -CB用量增加 ,其在硫化胶中形成的导电网络逐渐完善 ,用量达19份 (质量份 ,下同 )时已形成完整的导电网络 ,导电机... 详细信息

研究了导电炭黑(HG -CB)的高结构对乙烯基甲基硅橡胶(VMQ -110)复合材料电性能和机械性能的影响。由TEM观察看出 ,随HG -CB用量增加 ,其在硫化胶中形成的导电网络逐渐完善 ,用量达19份 (质量份 ,下同 )时已形成完整的导电网络 ,导电机理可用电子隧道效应来解释。同时随HG -CB填充量增加 ,复合材料的拉伸强度、硬度增大 ,但对VMQ -110的硫化有影响 ,欠硫现象严重。HG -CB的用量一般控制在10～15份 ,所得硅橡胶复合材料具有较佳的电性能和机械性能。

关键词：高结构导电炭黑硅橡胶复合材料导电性能

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电磁屏蔽复合涂层的研究

现代塑料加工应用 2006年第5期18卷 8-10页

作者：叶林忠王兆波于庆先崔作林青岛科技大学材料科学与工程学院山东青岛266042

报道了聚氯乙烯（PVC）基材的复合型电磁屏蔽涂层的研究。探讨了不同种类的导电碳黑、镍粉和石墨等填料对9～10^6 kHz频率范围内电磁波屏蔽性能的影响；考察了紫外光和温度对电磁屏蔽涂层体积电阻率的影响。结果表明，紫外光照射和温度... 详细信息

报道了聚氯乙烯（PVC）基材的复合型电磁屏蔽涂层的研究。探讨了不同种类的导电碳黑、镍粉和石墨等填料对9～10^6 kHz频率范围内电磁波屏蔽性能的影响；考察了紫外光和温度对电磁屏蔽涂层体积电阻率的影响。结果表明，紫外光照射和温度变化对复合涂层体积电阻率影响甚微；复合电磁屏蔽涂层在9～10^2 kHz范围内，屏蔽效果高达70dB；在10^2～10^6 kHz范围内，屏蔽效果逐渐下降到18dB左右。

关键词：电磁屏蔽聚氯乙烯复合涂层填料

Preparation and structure of Fe3Al nanostructured intermetallics

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Preparation and structure of Fe3Al nanostructured intermetal...

A Novel Model for Describing Rail Weld Irregularities and Predicting Wheel-Rail Forces Using a Machine Learning Approach

International Symposium of Young Scholars on Mechanics and Material Engineering for Science and Experiments

作者： Hao Chuncheng cui zuolin Yin Yansheng Zhang Zhikun Research Center for Nanostructured Materials Qingdao Institute of Chemical Technology Qingdao266042 China Department of Materials Shandong University Jinan 250061 ChinaShandong University Key Lab for liquid structure and Heredity of Materials of Ministry of Education China Research Center for Nanostructured Materials Qingdao Institute of Chemical Technology Qingdao 266042 China Department of Materials Shandong University Jinan 250061 China

ISBN: (纸本)1880132796

＜正＞ Nanostructured materials with average grain or other structural domain size below 100nm, have some properties different from and often superior to, those of conventional materials that have phase or grain structures on a coarse scale. In this paper nanostructured Fe3Al intermetallic compounds were produced by hydrogen arc plasma method. The TEM experiments show that the average grain size of the particles is about 40nm. Hardness of Fe3Al nano nanostructured intermetallic compounds treated by different ways was discussed.

关键词： Nanostructured intennetallic preparation structure hardness

来源： cnki会议评论

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 555-577页

作者： Linlin Sun Zihui Wang Shukun cui Ziquan Yan Weiping Hu Qingchun Meng State Key Laboratory of High-Speed Railway Track System China Academy of Railway Sciences Corporation LimitedBeijing100081China Railway Engineering Research Institute China Academy of Railway Sciences Corporation LimitedBeijing100081China School of Aeronautic Science and Engineering Beihang UniversityBeijing100191China

Rail weld irregularities are one of the primary excitation sources for vehicle-track interaction dynamics in modern high-speed *** can cause significant wheel-rail dynamic interactions,leading to wheel-rail noise,component damage,and *** researchers have employed the vehicle-track interaction dynamic model to study the dynamic interactions between wheel and rail induced by rail weld geometry ***,the cosine wave model used to simulate rail weld irregularities mainly focuses on the maximum value and neglects the geometric *** this study,novel theoretical models were developed for three categories of rail weld irregularities,based on measurements of the high-speed railway from Beijing to *** vertical dynamic forces in the time and frequency domains were compared under different running *** forces generated by the rail weld irregularities that were measured and modeled,respectively,were compared to validate the accuracy of the proposed ***,based on the numerical study,the impact force due to rail weld irrregularity is modeled using an Artificial Neural Network(ANN),and the optimum combination of parameters for this model is *** results showed that the proposed model provided a more accurate wheel/rail dynamic evaluation caused by rail weld irregularities than that established in the *** ANN model used in this paper can effectively predict the impact force due to rail weld irrregularity while reducing the computation time.

关键词： Rail weld irregularity high-speed railway vehicle-track coupled dynamics wheel/rail dynamic vertical force artificial neural networks