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2011 International Conference on Advanced Fibers and Polymer materials, ICAFPM 2011

作者： Ma, Xingfa Liu, Sha Gu, Sihui Zheng, Jing He, Xiaochun Gao, Mingjun Zhang, Xintao Li, Guang School of Environmental and Material Engineering Center of Advanced Functional Materials Yantai University Yantai 264005 China State Key Laboratory of Silicon Materials Zhejiang University Hangzhou 310027 China National Laboratory of Industrial Control Technology Institute of Advanced Process Control Zhejiang University Hangzhou 310027 China

ISBN: (纸本)9787122120199

Carbon fibers are attractive substrates to be used for designing flexible and weavable devices. In order to obtain some flexible chemical sensors or other nanodevices, surface treatment of carbon fiber was carried out with oxidation approach. Studies on preparation of some typical metal oxide or other inorganic functional film (such as, ZnO, NiO, CdS, et al) with different morphologies under hydrothermal reaction condition were examined. A series of characterizations were employed by scanning electron microscope (SEM), X-ray diffraction (XRD), photoluminescence spectra (PL), et al. Results indicated that the ZnO film with porosity was uniformly formed on the surface of carbon fibers, and the uniformities of other films will be improved further by adjusting synthesis conditions.

关键词： Carbon fibers

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Chemical and structural characterization of steelmaking dust from Stainless steel production

Chemical and structural characterization of steelmaking dust...

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European Metallurgical Conference, EMC 2011

作者： Kukurugya, F. Oráč, D. Takáčová, Z. Vindt, T. Miškufová, A. Havlík, T. Kekki, A. Aromaa, J. Forsén, O. Makkonen, H. Technical University of Kosice Faculty of Metallurgy Dept. of Non-ferrous Metals and Waste Treatment Letna 9 042 00 Kosice Slovakia Aalto University School of Science and Technology Dept. of Material Science and Engineering P.O. BOX 6200 02015 Espoo Finland University of Oulu Laboratory of Process Metallurgy P.O.BOX 4300 90014 Oulun Yliopisto Finland

ISBN: (纸本)9783940276391

Steelmaking dust is considered to be a hazardous by-product from steel production. Because of large heterogeneity and anisotropy of this kind of waste it is difficult to design suitable process for its recycling. The first and the most important step for recycling process design is to characterize the material from different points of view (chemical, structural, morphological composition). The aim of this work was to characterize the steelmaking dust from Outokumpu Stainless (Tornio, Finland). Chemical analysis was carried out by Atomic absorption spectroscopy (AAS). For structural characterization the X-ray diffraction phase analysis (XRD) was used. Morphological analysis was carried out by optical microscopy and scanning electron microscopy with semi-quantitative analysis of dust particles. Besides the analysis above also density measurements, specific area measurements and granulometric analysis were carried out.

关键词： X ray diffraction

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Alumina recovery from spent Bayer liquor by methanol

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Transactions of Nonferrous Metals Society of China 2010年第S1期20卷 165-168页

作者：张盈郑诗礼杜浩王少娜彭鹰张懿 National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Key Laboratory of Green Process and EngineeringInstitute of Process Engineering Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences Beijing Tungsten and Molybdenum Material Factory Beijing General Research Institute

Decomposition of sodium aluminate solution is the key step for alumina production;however,approximately only 55% alumina yield is obtained by seeded ***,it is difficult to obtain sodium aluminate solution with high caustic *** this study,a method was explored to recover alumina from spent Bayer liquor by deep decomposition with methanol.A variety of conditions,including reaction temperature,reaction time,methanol amount and seed coefficient were elaborately *** results showed that the appropriate conditions were 1:1 in volume ratio of methanol to spent Bayer liquor,more than 1.0 seed coefficient and in a 40℃water bath for 24 *** characterizing through XRD,the crystal products were found to be Al(OH)*** this method,the molar ratio of Na2O to Al2O3 of the spent liquor can be increased from about 3.0 to 10.0 due to the recovery of alumina,which is beneficial for the treatment of red mud.

关键词： spent Bayer liquor methanol alumina decomposition

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Integrated Carbon Nanotubes Electrodes in Microfluidic Chip via MWPCVD

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Plasma Science and technology 2010年第5期12卷 556-560页

作者：王升高王明洋余冬冬张文波邓晓清杜宇程莉莉汪建华 Provincial Key Laboratory of Plasma Chemistry and Advanced Materials Wuhan Institute of Technology School of Material Science and Engineering Wuhan Institute of Technology Key Laboratory for Green Chemical Process of Ministry of Education Wuhan Institute of Technology

An on-chip electrochemical detector for microfluidic chips was described, based on integrated carbon nanotube （CNT） electrodes directly onto the chip substrate through microwave plasma chemical vapor deposition （MWPCVD）. The attractive performance of the integrated CNT electrodes was demonstrated for the amperometric detection of sucrose, glucose and D-fructose. The integrated CNT electrodes showed stronger electrocatalytic activity than gold electrodes.

关键词： microfluidic chip integrated carbon naotube electrodes microwave plasmachemical deposition amperometrie detection

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Thermodynamic model of sulphide capacity in CaO-SiO2-MgO-Al2O3 ironmaking slags

Beijing Keji Daxue Xuebao/Journal of University of Science a...

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Beijing Keji Daxue Xuebao/Journal of University of Science and technology Beijing 2011年第9期33卷 1079-1084页

作者： Zhang, Meng Guo, Han-Jie Ding, Ru-Cai Wang, Xiao-Dong Shi, Cheng-Bin Yang, Xue-Min School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China State Key Lab. of Multiphase Complex Systems Institute of Process Engineering Chinese Acad. of Sci. Beijing 100190 China Shougang Qinhuangdao Metal Material Co. Ltd. Qinhuangdao 066326 China

A prediction model of sulphide capacity in CaO-SiO2-MgO-Al2O3 slag systems was developed based on the ion and molecule coexistence theory (IMCT) of slags, i.e., IMCT-CS2- model. The predicted sulphide capacity by the IMCT-CS2- model was compared with the measured one from experiments and the predicted one by other five prediction models of sulphide capacity. The predicted sulphide capacity of CaO-SiO2-MgO-Al2O3 slags at 1 773 K by the developed IMCT-CS2- model has a higher accuracy than the measured one as well as the predicted one by other sulphide capacity models. The developed IMCT-CS2- model can calculate not only the total sulphide capacity of the slags but also the respective sulphide capacity of free CaO and MgO in the slags. Increasing the Al2O3 content from 10% to 17%, increasing the CaO content from 38% to 44% and decreasing the MgO content from 12% to 4% can improve the contribution ratio of free CaO from 97% to 99 % and decrease the contribution ratio of free MgO from 3% to about 1% to the total sulphide capacity of CaO-SiO2-MgO-Al2O3 slags.

关键词： Aluminum oxide

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Strain Effects on the Surface Chemistry and Electronic Structure of La0.7Sr0.3MnO3

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ECS Meeting Abstracts 2011年第12期MA2011-01卷

作者： Helia Jalili Jeong Woo Han Yener Kuru Zhuhua Cai Bilge Yildiz Material Process Center Massachusetts Institute of Technology 77 Mass Ave Cambridge MA 02139 Massachusetts Institute of Technology Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA MA 02139 Nuclear Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Ave. Cambridge Massachusetts 02139

Abstract not Available.

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Strain Effects on the Surface Chemistry of La0.7Sr0.3MnO3

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ECS Transactions 2011年第1期35卷

作者： Jeong Woo Han Helia Jalili Yener Kuru Zhuhua Cai Bilge Yildiz Massachusetts Institute of Technology Material Process Center Massachusetts Institute of Technology 77 Mass Ave Cambridge MA 02139 Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA MA 02139 Nuclear Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Ave. Cambridge Massachusetts 02139

We report on the mechanistic effects of epitaxial strain on the surface chemistry, in particular the segregation of Sr cations on La0.7Sr0.3MnO3 (LSM) model dense thin films. Our results show that the LSM film surfaces are layered and exhibit strain-dependent nanoscale lateral structures. All surfaces examined here were Sr-rich. X-ray photoelectron spectroscopy shows a larger Sr segregation tendency for the tensile strained LSM films. This result is in good agreement with our first principles-based calculations, which predict lower Sr segregation energy on the tensile strained LSM surface. Our findings suggest the importance of lattice strain as a key parameter to tune the surface chemistry for facilitating oxygen reduction kinetics on transition metal perovskite cathode surfaces for solid oxide fuel cells.

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Influence of New Sol-Gel refractory coating on the casting properties of cold box and furan cores for Grey cast iron

Influence of New Sol-Gel refractory coating on the casting p...

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69th World Foundry Congress 2010, WFC 2010

作者： Nwaogu, U.C. Poulsen, T. Bischoff, C. Tiedje, N.S. Technical University of Denmark Department of Mechanical Engineering Institute of Production and Process Technology DK-2800 Kgs. Lyngby Denmark Danish Technological Institute Centre for Material Testing Kongsvang Álle 29 8000 Århus Denmark

ISBN: (纸本)9781622762866

New Sol-Gel coated sand cores made from coldbox and furan binder systems were investigated. The idea of the coating was to improve the surface quality of castings. Grey iron was cast on the cores in a sand casting process. The effect of the high temperature of the melt on the cores was assessed by measuring the heating curves. The viscosity of the coating, moisture content and the permeability of the cores were evaluated. The surface quality of the castings was investigated using SEM and OM. The results show that the moisture content of the cores affected the permeability. In furan cores the vapour transport zone (VTZ) when in contact with the melt is larger than it is in a coldbox which means the furan cores have higher moisture content. The new sol-gel coating has the potential for improving the surface quality of castings without negative effects on the graphite distribution. The surface of castings made using the new sol-gel coated furan cores show better surface quality than those made using the coldbox.

关键词： Sol-gels

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Research on advanced treatment and reuse of anti-counterfeiting paper mill wastewater by CMF & RO treatment

Research on advanced treatment and reuse of anti-counterfeit...

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International Conference on Digital Manufacturing and Automation

作者： Liu, Jian-Li Huan, Guo-Lan Dai, Hai-Ping Dong, Ting-Wei Ke, Yong-Wen Key Laboratory of Hollow Fiber Membrane Material and Membrane Process Institute of Membrane Science and Technology Tianjin Polytechnic University Tianjin China Institute of Membrane Science and Technology Environmental and Chemical Engineering School Tianjin Polytechnic University Tianjin China Tianjin Motimo Membrane Technology Ltd. Tianjin China

ISBN: (纸本)9780769542867

A pilot-scaled continuous membrane filtration (CMF) and reverse osmosis (RO) integrated technique was used for the treatment of secondary sedimentation tank effluent in an anti-counterfeiting paper mill, and the effluent of the integrated technique can be reused in multiple production processes. The results showed that the CMF effluent met all the requirements of RO influent, the average CODCr was 45 mg/L, turbidity was less than 0.5 NTU, SS was less than 1 mg/L, and for the CMF system the removals of CODCr, turbidity and SS were 10%, 99% and 100%, respectively. The RO effluent met the water quality requirements of papermaking in every aspects, i.e. the average CODCr was 2 mg/L, the removal rate of CODCr was bigger than 90%, the conductivity was less than 10 μs/cm, and the desalination rate was bigger than 99%. The quality of the treated water met the requirements of the anti-counterfeiting papermaking process. © 2010 IEEE.

关键词： Effluents

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Cellulose fibers and nanofibrils for adhesive reinforcement

Cellulose fibers and nanofibrils for adhesive reinforcement

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International Conference on Nanotechnology for the Forest Products Industry 2010

作者： Veigel, Stefan Müller, Ulrich Konnerth, Johannes Gindl, Wolfgang BOKU - University of Natural Resources and Life Sciences Department of Material Sciences and Process Engineering Institute of Wood Science and Technology Peter Jordan Straße 82 A-1190 Vienna Austria Wood Kplus Competence Center for Wood Composites and Wood Chemistry Linz Austria

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