检索结果-内蒙古大学图书馆

International Symposium on Multifunctional Ceramic materials Based on Nanotechnology, ISMCN 2010

作者： Huang, L.W. Fu, Y. Wang, H. Lee, S.W. Niihara, K. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Department of Environmental Engineering Sun Moon University Chungnam 336-708 Korea Republic of Extreme Energy-Density Research Institute Nagaoka University of Technology Niigata 940-2188 Japan

Spark plasma sintering (SPS) and Self-propagating High-temperature synthesis/ quick pressing (SHS/QP) methods were used to fabricate nanotubes reinforced alumina. The difference in microstructure was discussed. In the SHS/QP process, the maximum densification temperature is 1660°C and the heating rate is about 1600°C /min. The whole densification process in SHS/QP is very short, which is much beneficial to protect the nanotubes and restrain the growing of grains. The fracture toughness of the sample prepared by SHS/QP is up to 4.9MPam1/2 for 1mass% CNTs/Al2O3 composites, which shows excellent toughening effects of nanotubes.

关键词： Microstructure

来源：评论

学校读者我要写书评

暂无评论

synthesis of superparamagnetic FePt nanoparticles and their anticancer activities on brain tumor cells

Synthesis of superparamagnetic FePt nanoparticles and their ...

引用

第十一届全国生物无机化学学术会议

作者： Haiming Sun Ting Zhang Mingyan Dong Dan Chen Yixia Yin Qingzhi Wu Shipu Li State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and BiomedicalMaterials and Engineering Center Wuhan University of Technology Wuhan 430070 China

Superparamagnetic FePt nanoparticles (NPs) have attracted considerable attention due to their extremely promising potentials as the diagnostic and therapeutic reagent in biomedical *** the present study,water-soluble FePt NPs about 4 nm in diameter and oil-soluble FePt NPs about 6 nm in diameter were successfully synthesized using amino acids and oleic acid/oleylamine as the capping reagent,*** component,size and magnetic property of FePt NPs were tuned through adjusting the reactant molar ***,the anticancer activities of FePt NPs with different capping reagents were evaluated using different brain tumor cell lines (such as U251,U87,H4) as the *** growth prohibition of tumor cells by NPs was measured through MTT assay,while the interaction of NPs and tumor cells was observed through transmission electron microscopy (TEM).The results show that FePt NPs capped with oleic acid/oleylamine displayed better cytotoxic effects toward brain tumor cells than L-cysteine-capped FePt *** is interesting that the cellular uptake of FePt NPs seem to be similar in three cell *** conclusions,we synthesized successfully superparamagnetic FePt NPs with the different component using different capping reagents,which displayed different anticancer activities on Human brain tumor *** results also provide a promising potential of superparamagnetic FePt NPs as the multifunctional diagnostic and therapeutic reagent in biomedical fields.

关键词： FePt superparamagnetic anticancer activities brain tumor cells

来源：评论

学校读者我要写书评

暂无评论

Extraordinary Photocatalytic activity of Three-Dimensionally Ordered Macroporous Titania

Extraordinary Photocatalytic activity of Three-Dimensionally...

引用

International Conference on Clean Energy Science 2011年国际清洁能源科学会议(ICCES2011)

作者： Min Wu Yu Li Baolian Su State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanHubei 430070China Laboratory of Inorganic Materials Chemistry (CMI) The University of Namur (FUNDP)Namur B-5000Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhanHubei 430070China Laboratory of Inorganic Materials Chemistry (CMI)The University of Namur (FUNDP)Namur B-5000Belgium

来源：评论

学校读者我要写书评

暂无评论

The Preparation of Oriented TiO 2 Nanotube Films by Electrophoretic Deposition Method without Hard Template and Enhanced Photocatalytic Activity

引用

Integrated Ferroelectrics 2011年第1期128卷 97-104页

作者： Zhao, Li Shen, Yi Wang, Shimin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology PR China Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei University PR China Faculty of Material Science and Chemical Engineering China University of Geosciences PR China

Highly oriented titanate nanotube (TNT) film was successfully synthesized by a simple electrophoretic deposition (EPD) method without any hard templates and surfactants. This oriented films adequately utilized the excellent properties of ID nanomaterials such as single crystal semiconductor architectures, large surface area, and superior charge transport, which lead to higher photocatalytic activity. We believe that this versatile method can be extent to fabricate other ordered ID nanomaterials films. [ABSTRACT FROM AUTHOR]

关键词： Electrophoretic deposition oriented films photocatalytic activity

来源：评论

学校读者我要写书评

暂无评论

Fine-structured TiO2 ceramic patterns on the ceramic surface fabricated by replication

Fine-structured TiO2 ceramic patterns on the ceramic surface...

引用

International Symposium on Multifunctional Ceramic materials Based on Nanotechnology, ISMCN 2010

作者： Kim, H.D. Nakayama, T. Hong, B.J. Imaki, K. Yoshimura, T. Suzuki, T. Suematsu, H. Lee, S.W. Fu, Z. Niihara, K. Extreme Energy-Density Research Institute Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka 940-2188 Japan Department of Physics and Electronics Graduate School of Engineering Osaka Prefecture University 1-1 Gakuencho Nakaku Sakai 599-8531 Japan Department of Environmental Engineering Sun Moon University Chungnam 336-708 Korea Republic of State Key Lab. of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

The ability to fabricate high precision micro- to nanoscale structure in a wide variety of materials is of crucial importance for the advancement of microtechnology, nanotechnology and nanoscience. Also, the ability to create micrometer and sub-micrometer architecture for functional ceramics is a prerequisite of exploring the rich field of ceramic nanotechnology. In this work we fabricated three-dimensional oxide ceramic materials with fine-structure over multiple length scales by combining replication patterning technique, polyvinyl alcohol (PVA), oxide ceramic material (TiO2) nano-sized particles. Our study is based on the idea that PVA can be easily detached from a mold by peeling. We confirmed that micron and sub-micron-sized fine-structured oxide ceramic patterns containing nano-sized pores could be fabricated using this procedure. The results presented demonstrate the compositional and structural diversities that are possible with a facile approach and simple method.

关键词： Ceramic materials

来源：评论

学校读者我要写书评

暂无评论

The synthesis and Structure of New Perovskite-type Niobate Processed in Millimeter Wave Field

引用

MRS Online Proceedings Library (OPL) 2011年第1期784卷 C11.30-C11.30页

作者： Hanxing Liu Long Zou Jian Zhou Guangjiang Yuan Hua Hua Dabing Luo Jirun Luo Shixi Ouyang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Luoshi Road 122 Wuhan 430070 P.R. China The Institute of Electronics Chinese Academy of Sciences Beijing 100080 P. R. China

In present paper a new niobate materials Ba5LixTixNb10-xO30 were synthesized by doping Li+ in the system BaO- TiO2- Nb2O5 in millimeter wave field. X-ray diffraction (XRD) quantitative and scanning transition spectroscopy (SEM) analysis were employed to study crystal structure and microstructure of reaction products. It was found that pure products could be obtained at temperature 900°, 8 min which is lower comparing with that by conventional method. The XRD data shown the crystal belongs to tetragonal tungsten bronze structure with space group P4bm. The grain size synthesized in millimeter wave field had smaller size, narrower distribution, better sinter-ability, and without hard agglomeration comparing whit that obtaining from conventional synthesis. At lower temperature Ba5LiTiNb9O30 is a tetragonal ferroelectric phase.

关键词：

来源：评论

学校读者我要写书评

暂无评论

MECHANICAL PROPERTIES AND CURING KINETICS OF EPOXY RESINS CURED BY VARIOUS AMINO-TERMINATED POLYETHERS

引用

Chinese Journal of Polymer Science 2010年第6期28卷 961-969页

作者： Li-ying Zhao Jian-guo Guan Hui-ru Ma Zhi-gang Sun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

A high performance thermosetting epoxy resin crosslinkable at room temperature was obtained via directly moulding diglycidyl ether of bisphenol A（DGEBA） and flexibleα,ω-bisamino（n-alkylene）phenyl terminated poly（ethylene glycol）.The influences of the n-alkylene inserted in aminophenyl of flexible amino-terminated polythers（ATPE） on the mechanical properties,fractographs and curing kinetics of the ATPE-DGEBA cured products were *** results show that the insertion of n-alkylene group into the aminophenyl group of the ATPE,on one hand,can significantly increase the strain relaxation rate and decrease glass transition temperature of the ATPE-DGEBA cured products,resulting in slight decrease of the Young’s modulus and tensile strength,and significant increase of the toughness and elongation of the ATPE-DGEBA cured *** the other hand,it can remarkably enhance the reactivity of amine with epoxy,much accelerating the curing rate of the ATPE-DGEBA *** activation energy of DGEBA cured by BAPTPE,BAMPTPE and BAEPTPE was 53.1,28.5 and 25.4 kJ·mol;,*** as-obtained ATPE-DGEBA cured products are homogeneous, transparent,and show excellent mechanical properties including tensile strength and *** they are promising to have important applications in structure adhesives,casting bulk materials,functional coatings,cryogenic engineering, damping and sound absorbing materials.

关键词： Epoxy resin Amine-terminated polyether Fractography Curing kinetics Mechanical properties

来源：评论

学校读者我要写书评

暂无评论

磺酸钠基天然橡胶离聚体/聚苯胺复合材料的力学、电学性能

磺酸钠基天然橡胶离聚体/聚苯胺复合材料的力学、电学性能

引用

2012年全国高分子材料科学与工程研讨会

作者： Pan YongJun 潘勇军 Xie HongQuan 陈勇 Chen Yong 崔丽 College of Material Science and Engineering Wuhan Textile University Wuhan 430074 China 武汉纺织大学材料科学与工程学院武汉 430073 Department of Chemistry Huazhong University of Science and Technology Wuhan 430074China 武汉理工大学复合材料国家重点实验室武汉 430070 State key laboratory of advanced technology for materials synthesis and processingWuhan University of Technology Wuhan 430070 China

在胶乳状态下,利用甲酸和双氧水将天然橡胶分子链进行环氧化后用亚硫酸氢钠开环制备了磺酸钠基天然橡胶离聚体,并将苯胺在天然橡胶磺酸钠离聚体中进行原位聚合制备了聚苯胺/天然橡胶离聚体(PAn/INR)的复合材料。结果表明,利用开环反应... 详细信息

在胶乳状态下,利用甲酸和双氧水将天然橡胶分子链进行环氧化后用亚硫酸氢钠开环制备了磺酸钠基天然橡胶离聚体,并将苯胺在天然橡胶磺酸钠离聚体中进行原位聚合制备了聚苯胺/天然橡胶离聚体(PAn/INR)的复合材料。结果表明,利用开环反应将磺酸基接枝于天然橡胶分子链上而制得INR.添加了聚苯胺的复合材料其电导率最高可以达到5.264S·cm-1,比未添加聚苯胺时的导电率提高了18倍,其物理机械性能得到明显的提高,尤其是拉伸强度和最大伸长率均随聚苯胺含量的增加而增加；扫描电镜分析也说明聚苯胺与橡胶基质之间有了良好的界面粘合力。

关键词：磺酸钠基天然橡胶离聚体聚苯胺复合材料性能表征

来源：评论

学校读者我要写书评

暂无评论

Growth of ZnO Sub-millimeter Crystals by Microwave Heating

引用

Journal of Wuhan University of technology(materials Science) 2010年第1期25卷 94-98页

作者：祝振奇周建 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

ZnO sub-millimeter crystals were synthesized by microwave heating from ZnO powders without any catalyst or transport agent. Zinc oxide raw materials were evaporated from the high-temperature zone in an enclosure and crystals were grown on the self-source substrate. The thermodynamics analysis method was used to estimate the partial pressure of gases in the chamber, which shows that the pressure of ZnO could be neglected entirely in the range of experiment temperature. The kinetics analysis was employed to estimate the growth rate in different conditions, which shows a remarkable temperature gradient and a high system temperature would enhance the growth rate. Optics photos reveal that these products are hexagon crystals with 0.2-0.3 mm in diameter and 0.5-1 mm in length. A vapor-solid mechanism is proposed to explain the growth process of ZnO crystals. The temperature distribution in microwave oven is mainly determined by properties of electric field and it is different from that of a conventional method.

关键词： ZnO crystal microwave heating vapor growth

来源：评论

学校读者我要写书评

暂无评论

Influence of oxygen content on hardness of Cr(N,O) thin films deposited by an RF sputtering method

Influence of oxygen content on hardness of Cr(N,O) thin film...

引用

International Symposium on Multifunctional Ceramic materials Based on Nanotechnology, ISMCN 2010

作者： Shirahata, J. Ohori, T. Asami, H. Suzuki, T. Nakayama, T. Suematsu, H. Lee, S.W. Fu, Z. Niihara, K. Extreme Energy-Density Research Institute Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka 940-2188 Japan Department of Mechanical Engineering Tomakomai National College of Technology 433 Nishikioka Tomakomai 059-1275 Japan Department of Environmental Engineering Sun Moon University Chungnam 336-708 Korea Republic of State Key Lab. of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

Cr(N,O) thin films were deposited by radio frequency reactive unbalanced magnetron sputtering on Si(100) or glassy carbon substrates. In this paper, the influence of oxygen content on hardness of Cr(N,O) thin films was investigated. The compositional analysis was carried out by Rutherford backscattering spectroscopy. It was found that these thin films contained up to 44at.% of oxygen. Phases in the samples were determined by X-ray diffraction. Cr(N,O) thin films show only peaks based on CrN. The microstructure was observed by utilizing a transmission electron microscope. At

关键词： Thin films

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：