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2009 34th IEEE Photovoltaic Specialists Conference (PVSC)

作者： Bo He ZhongQuan Ma Jing Xu Yun Fei YingHui Tang Lei Zhao NanSheng Zhang Feng Li Shen Cheng Ling Shen XiaJie Meng ChengYue Zhou ZhengShan Yu YanTing Yin SHU-Solar E PV Laboratory Department of Physics Shanghai University 200444 China Department of Physics Shanghai University Shanghai China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing WuHan University of technology HuBei 430070 China Solar Enertech Corp Shanghai China Solar Enertech Corp Shanghai 201206 China

ITO/AZO double films were deposited by RF sputtering on p-Si texturized substrate to fabricate ITO/AZO/SiO 2 /p-Si SIS heterojunction. The structural, optics and electrical properties of the ITO/AZO films were characterized by UV-VIS spectrophotometer, four point probe, respectively. The results show that ITO/AZO films have good quality. The electrical junction properties were investigated by I-V measurement, which reveals that the heterojunction shows typical good rectifying behavior and great photoelectric effect.

关键词： Silicon Heterojunctions Indium tin oxide Optical films Optical device fabrication Radio frequency Sputtering Nonlinear optics Probes Electric variables measurement

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Effects of Microstructure Modification on Properties of AIN/BN Composites

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武汉理工大学学报（材料科学版）（英文版） 2008年第1期23卷 121-124页

作者： LI Meijuan ZHANG Lianmeng SHEN Qiang ZHANG Dongming State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Applied Chemistry School of ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

It is very difficult to prepare full-densified aluminum nitride-boron nitride(AIN/BN)composite ceramics with homogeneous microstructure and high thermal *** plasma sintering(SPS)was used to fully densify the AIN/BN composites in this ***,mechanical properties and thermal conductivity of the SPS sintered AIN/BN composites with 5-30 vol% BN were *** results show that the microstructure of composites is fine and homogenous,and the AIN/BN composites exhibit high mechanical *** promote the growth of AIN grains and modify the distribution of grain boundary in AIN/BN composites,a heat treating methodology was introduced through gas pressure sintering(GPS).This processing was significantly beneficial to enhancing the thermal conductivity of the *** thermal conductivity of AIN/BN composites with 5-30 vol% BN reached 60 W/m K after the samples were treated by GPS.

关键词： AIN/BN composites thermal conductivity microstructure modification

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Preparation of High Performance Green Alumina Ceramic Balls by Roller Production Waste

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武汉理工大学学报（材料科学版）（英文版） 2008年第1期23卷 134-138页

作者： ZHONG Lianyun WU Bolin ZHANG Lianmeng ZHANG Guifang State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Key Lab of Nonferrous Materials and New Processing Technology( Guangxi University Guilin University of Technology) of Ministry of EducationGuilin 541004China School of Chemistry and Ecological Engineering Guangxi University for NationalitiesNanning 530006China Key Lab of Nonferrous Materials and New Processing Technology Guangxi University Guilin University of Technology of Ministry of EducationGuilin 541004China State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

To reuse roller waste as a raw material of high performance green ceramic balls,three kinds of white alumina ceramic balls whose wear resistance were 2-3 times of the best high alumina ceramic ball with90% Al2O3 were prepared,and the Al2O3 content of the prepared balls was 75%.It is found that the effect of calcia and magnesia on the wear resistance of ceramic balls is contrast to the accepted one: the wear rate of the ceramic balls prepared in CaO-Al2O3-SiO2 system is the lowest and the wear rate of the ceramic balls prepared in MgO-Al2O3-SiO2 is the *** main crystal phase of the ceramic ball is mullite and *** ceramic ball granular is uniform and fine with 4-5 um average *** pore diameter is about 2 *** wear way of the ceramic balls is mainly transcrystalline fracture.

关键词： roller production waste alumina ceramic ball wear resistance white transcrystalline fracture

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Ultralong Cu(OH)2 and Cuo Nanowires Bundles:Crystal Growth Control and Enhanced Photocatalytic Performances

Ultralong Cu(OH)2 and Cuo Nanowires Bundles:Crystal Growth C...

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IUPAC 5th International Symposium on Novel materials and their synthesis,19th International Symposium on Fine Chemistry and Functional Polymers(IUPAC 第五届国际新型材料及其制备学术研讨会暨第19届国际精细化学和功能高分子学术讨论会)

作者： Yu Li Xiao-Yu Yang Guastaaf Van Tendelo Bao-Lian Su Laboratory of Inorganic Materials Chemistry The university of Namur (FUNDP)61 rue de BruxellesB-5000 NamurBelgium EMATUniversity of AntwerpGroenenborgerlaan 171B-2020 AntwerpenBelgium Laboratory of Inorganic Materials ChemistryThe university of Namur (FUNDP)61 rue de BruxellesB-5000 NamurBelgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology122 Luoshi Road430070WuhanHubeiChina

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Etch Damage Evaluation in Integrated Ferroelectric Capacitor Side Wall by Piezoresponse Force Microscopy

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Chinese Physics Letters 2008年第9期25卷 3489-3492页

作者：王龙海戴英邓兆 School of Electrical and Information Engineering Wuhan Institute of Technology Wuhan 430073 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070

The etch damage in integrated ferroelectric capacitors side wall fabricated by the typical integrated process （TIP- FeCAP） and the innovated integrated process （IIP-FeCAP） are investigated by piezoresponse force microscopy （PFM）. The IIP-FeCAP side wall exhibits fine and dear nanoscale domain images and the same piezoresponse signal as the thin film, and the domains can also be easily switched by an external voltage. In the TIP-FeCAP side wall, owing to the effect of etch damage, the very weak piezoresponse signal and some discrete domains can be observed, and the discrete domains cannot be switched by the applied 9 V and -9 V dc voltage. The PFM results reflect the etch damage in the integrated ferroelectric capacitors and also suggest that the PFM can be used as an efficacious tools to evaluate the etch damage at nanoscale and spatial variations.

关键词： the power-law exponents precipitation durative abrupt precipitation change

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Comparative Study on Lattice Parameters of HAP Nanoparticles with Those of HAP Whiskers

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Journal of Wuhan University of technology(materials Science) 2008年第3期23卷 395-398页

作者：王友法 Biomedical Materials and Engineering Research Center Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Hydroxyapatite whiskers are used as reinforcement for biomaterials because of their needlelike morphology and strong strength of single crystal. HAP nanoparitcles are used in drug delivery system, protein separation and anticancer drug besides their implant applications. Many new properties arise from nanoeffects while nanoeffects come from specialty of nanostructure. The Ca（NO3）2·4H2O and （NH4）2HPO4 were used as starting reagents for preparation of HAP whiskers and nanoparticles. The whiskers are 100-200 μm long while nanoparticles are 30-80 nm in size. XRD is applied to characterize the lattice parameter difference of whisker and nanoparticle. Compared with those of HAP whiskers, the a-axis and b-axis of HAP nanocrystals are shortened while the c-axis is elongated. That makes nanoparticles capable of their non-needle-like morphology, higher reaction activity and special bioeffects.

关键词： lattice parameters hydroxyapatite nanoparticles whiskers

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Fabrication and physicochemical and medicinal characterization of nano traditional Chinese medicine

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Recent Patents on Engineering 2008年第2期2卷 104-113页

作者： Peiyan, Ma Zhengyi, Fu Weimin, Wang Hao, Wang Jinyong, Zhang Yucheng, Wang Qingjie, Zhang State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China School of Science Wuhan University of Technology Wuhan 430070 China

This paper discusses the present status of, and future perspectives on nano Traditional Chinese medicine (TCM) by describing the concept, its methodologies, preservation, drug effect and pharmacological study. The explanation and discussion are made from the recent study of nano TCM. Several types of nano Traditional Chinese medicine are prepared by High speed centrifugal sheering pulverizer (HSCS pulverizer) and the physicochemical characterization of nano particles is discussed. The typical serumal experiments are completed to prove the remarkable medicinal effect of nano TCM particles. When the medicine is pulverized to nano particles, the natural barrier of cell membrane and cell wall are broken into pieces. The medicine can be extracted faster and more adequately. Conclusions are drawn that the medicinal effects of nano particles can be improved. So the Nano TCM will have a profound effect on the Chinese drugs pharmaceutics. More experimental data should be studied in order to evaluate the medicinal effects of nano TCM further. © 2008 Bentham Science Publishers Ltd.

关键词： Fabrication

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Microstructure and of Mechanics Microwave Boriding

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Journal of Wuhan University of technology(materials Science) 2008年第4期23卷 528-531页

作者： YE Weiping HUANG Zilin ZHANG Qiaoxin ZHANG Qinyi School of Materials ScienceandEngineering Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

Microwave boriding layer microstructure of carbon steels and its diffusion mechanics were studied. The results show that the existence of microwave field in the boriding can＇t change the growth mechanics of boriding layer. Compared with conventional boriding, if the treatment temperature and time remain constantly, the descend rate of the boriding layer thickness with the increase of carbon content of steel is smaller. The diffusion activation energy ofT8 steel is 2.6× 10^5 J/mol between the temperature of 750 ℃ and 900 ℃ in microwave field, which is in the same order of conventional boriding.

关键词： microwave boriding boriding layer diffusion activation energy

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Morphologies and Mechanical Properties of Unsaturated Polyester Resin Modified with TDI

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Journal of Wuhan University of technology(materials Science) 2008年第4期23卷 460-462页

作者： DUAN Huajun ZHANG Lianmeng WANG Jun YANG Xiaoli School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

The morphology, mechanical properties of unsaturated polyester（UP） resin modified with TDI were studied via dynamic FT-1R spectra, SEM, DMA and mechanical property testing. Results show that companying with the cured cross-linking reaction of UP resin, TDI can firstly react with UP and produce polyurethane（PU）, and then UP and PU form the cross-linking nets together. The impact fracture section morphology of modified UP resin manifested the typical sea- islands structure. Testing of mechanical properties showes that for introducing of PU, the TDI has an obvious effect on the toughness and strength of UP resin. When the ratio of TDI/UP （w/w） was 7.5%, the modified UP resin exhibited the best mechanical properties with flexural strength of 125 MPa, impact strength of 18 kJ·m^-2 and tensile strength of 72 MPa.

关键词： modified unsaturated polyester TDI morphology toughness mechanical properties

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Microstructure and Properties of W-15Cu Alloys Prepared by Mechanical Alloying and Spark Plasma Sintering Process

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Journal of Wuhan University of technology(materials Science) 2008年第3期23卷 399-402页

作者：章桥新 School of Mechanical and Electronic Engineering Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis&Processing Wuhan University of TechnologyWuhan 430070China

W-15Cu composite powders prepared by mechanical alloying （MA） of raw powders were consolidated by spark plasma sintering （SPS） process at temperature ranged 1 230-1 300 ℃ for 10 min and under a pressure of 30 MPa. By using high energy milling, particles containing very fine tungsten grains embedded in copper, called composite particles, could be produced. The W grains were homogeneously dispersed in copper phase, which was very important to obtain W-Cu alloy with high mechanical properties, fine and homogeneous microstructure. The microstructure and properties of W-15Cu alloys prepared by SPS processes at different temperature were researched. The results show that W-15Cu alloys consolidated by SPS can reach 99.6 % relative density, and transverse rupture strength （TRS） is 1 400.9 MPa, Rockwell C hardness （HRC） is 45.2, the thermal conductivity is 196 W/m-K at room temperature, the average grain size is less than 2 μm, and W-15Cu alloy with excellent properties, homogeneous and fine microstructure is obtained.

关键词： W-15Cu mechanical alloying spark plasma sintering （SPS）

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