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Dynamic Vortex Motion in Anisotropic HTc Superconductors
J. Sosnowski
Electrotechnical Institute, Warsaw, Poland
Study of Copper Sulfide Layers on the Polyamide Film Formed by the Use of Higher Polythionic Acids
V. Janickis , R. Maciulevicius, R. Ivanauskas, I.Ancutiene
Department of Inorganic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
The Synthesis of Hydrosodalite and Its Use in Mortar Technology
V. Sasnauskas, D. Palubinskaite
Department of Inorganic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
Electrical and Optical Properties of Sol-Gel Derive ZnO: Al Thin Films
P. Sagar, M. Kumar, R.M. Mehra
Department of Electronic Science, University of Delhi, India
Effect of the Reactive Milling of Graphite with Boron Nitride, Tin and Antimony on the Lithium Insertion
D. Waszak1, E. Frąckowiak2
1 Central Laboratory of Batteries and Cells, Poznań, Poland
2
Institute of Chemistry and Technical Electrochemistry, Poznań University of Technology, Poznań, Poland
Preparation of CuFe2O4/SiO2 Nanocomposite by Sol-Gel Method
J. Plocek1,2, A. Hutlová1, D. Nižňanský1,2, J. Buršik1, J.-L. Rehspringer3, Z. Mička2
1Institute of Inorganic Chemistry, ASCR, Rez u Prahy, Czech Republic
2Department of Inorganic Chemistry, Faculty of Science, Charles University of Prague, Prague, Czech Republic
3I.P.C.M.S., Groupe des Matériaux Inorganiques, Strasbourg Cedex, France
Evaluation of Metal / Mould Interfacial Heat Transfer During Solidification of Aluminium-4.5% Copper Alloy Castings Cast in CO2-Sand Moulds
S.N. Kulkarni1, K. Radhakrishna2
1Dept. of Mech., Adhiyamaan College of Engineering, Hosur, India
2 Dept. of Mech., B.M.S.College of Engineering, Bangalore, India
Abstract
In this study, two methods were employed to measure the heat transfer coefficient, h, at the metal-mould interface during casting. The first method is to measure the size of gap formed between metal and mould during the casting process and estimate the value, h, based on the gap size. The second method is to measure temperature at certain locations of metal and mould, and by using reverse method, h, at the gap, can be derived. A procedure is also developed to make use of temperature measurement data to obtain the h as the function of casting temperature near the interference. This form of h data is very useful for mathematical modeling of solidification for casting.
In the present study, the casting material is Al-4.5% Cu alloy and the mould material is CO2-Sand. The results of the measurements show that the value of h is not a constant, but varies with time/temperature during casting. With the gap size measurement, h is very large in the beginning and keeps dropping afterwards. As the gap is fully developed, h approaches a constant value between 130 and 40W/(m0-2C). By the inverse method, along with the temperature measurement, the value of h increase in the beginning stage and reaches a peak value of approximately 710W/(m0-2C), then h drops rapidly approximately to solidification temperature and rises again until the end of solidification. After that, h keeps dropping until the end of casting.
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Download article (PDF)Electrical and Optical Studies On Thin Films of Indium Phthalocyanine Chloride.
S. Memmen, C.S. Menon, N.V. Unnikrishnan
School of Pure and Applied Physics, Mahatma Gandhi University, Kerala, India.
Structure and Magnetic Behavior of Mononuclear and Dinuclear Cu(II)/Zn(II) Mnocarboxylate-pyridine Derivatives by Crystal Engineering
T. Ohmura, W. Mori, T. Takei, T. Ikeda, A. Maeda
Department of Chemistry, Faculty of Science, Kanagawa University, Japan
Isomeric Forms of Cu(quinoline -2-carboxylate)2.H2O Compound: Spectroscopic, and Magnetic Properties
B. Żurowska, J. Mroziński
Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
Coordination Behaviour of N,N'-diallylpiperazinium(+2) and N-allylhexamethylenetetraminium in Their Crystalline π-complexes with Ionic Copper(I) Salts
O. Shkurenko1, V. Kinzhybalo1, T. Lis2, Z. Ciunik2, M. Mys'kiv1
1Department of Chemistry, Ivan Franko National University, L'viv, Ukraine
2Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
Metal Complexes of PyrrolineE-N-Oxide Dioxime
A.B. Burdukov1, E.V. Mokina1, Y.G. Shvedenkov1, V.A. Reznikov2, G.I. Roschupkina2, G.V. Romanenko3
1Nikolaev Institute of Inorganic Chemistry of SB RAS, Novosibirsk, Russia
2Novosibrisk Institute of Organic Chemistry of SB RAS, Novosibirsk, Russia
3International Tomography Center of SB RAS, Novosibirsk, Russia
Chemical Vapour Deposition (CVD) of Metallic Layers Prepared from Silver Carboxylates Complexes with Tertiary Phosphines
R. Szczęsny, I. Szymańska, P. Piszczek, L. Dobrzańska, E. Szłyk
Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
Characteristic of Thermal Properties of Multinuclear Ti(IV) and Zr(IV) Carboxylate Derivatives Using Thermal Analysis and Variable Temperature MS and IR Methods
P. Piszczek, A. Grodzicki, M. Richert, A. Radtke
Faculty of Chemistry, Nicolaus Copernicus University, Toruń, Poland
Microstructure and Mechanical Properties in Nickel Deformed By Hydrostatic Extrusion
M. Kulczyk1,3, W. Pachla1, A. Mazur1, R. Diduszko2, H. Garbacz3, M. Lewandowska3, W. Łojkowski1, K. J. Kurzydłowski3
1Institute of High Pressure Physics, Polish Academy of Sciences, Warszawa, Poland
2Institute of Electronic Materials Technology, Warszawa, Poland
3Warsaw University of Technology, Faculty of Materials Science and Engineering, Warszawa, Poland
Polynuclear Chain Complexes of Ruthenium(II,III) Pivalate Dimers Linked by 2,5-dimethyl-N,N'-dicyanobenzoquinonediimine, 1,4-benzoquinone, and 1,4-naphthoquinone
D. Yoshioka2, M. Hanada1, M. Mikuriya2,
I. Hiromitsu1, K. Kasuga1
1Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Japan
2Department of Chemistry and Open Research Center for Coordination Molecule-based Devices, School of Science and Technology, Kwansei Gakuin University, Japan
Synthesis and Structural Characterization of a Series of Transition Metal Complexes with a Tetradentate Schiff-Base Ligand Derived from Salicylaldehyde and 2-(2-Aminoethylamino)ethanol
M. Mikuriya, K. Matsunami
Department of Chemistry and Open Research Center for Coordination Molecule-based Devices, School of Science and Technology, Kwansei Gakuin University, Japan
Distinguishing And Identification of Point And Extended Defects In DLTS Measurements
Ł. Gelczuk, M. Dąbrowska-Szata, G. Jóźwiak
Faculty of Microsystem Electronics and Photonics,
Chair of Advanced Electronic Engineering, Wroclaw University of Technology, Wroclaw, Poland
Quantitative Mapping of Elastic Properties of Electron-beam Damaged Silica-based Low-k Films
L. Jiang1, H. Geisler2, E. Zschech2
1
Gesellschaft für Wissens- und Technologietransfer der TU Dresden mbH, Dresden, Germany
2
AMD Saxony LLC & Co. KG, Materials Analysis Department, Dresden, Germany
Surface Photovoltage in Silicon: Novel Applications for Chemical and Biological Sensing
K. Nauka, Z. Li, T.I. Kamins
Hewlett-Packard Laboratories, Palo Alto, USA
Professor Marian Kryszewski 1925-2005
Ab Initio Calculations of Elastic Properties of Ni3Al And TiAl Under Pressure
R. Sot1,2, K.J. Kurzydłowski1
1Warsaw University of Technology, Faculty of Materials Science and Engineering, Warsaw, Poland
2Warsaw University, Interdisciplinary Centre for Mathematical and Computational Modelling (ICM), Warsaw, Poland
Molecular Dynamics of Hypoxanthine-3-N-oxide Near Fullerene "Sphere" - A Computer Simulation
P. Raczyński, S. Pałucha, P. Brol, Z. Gburski
Institute of Physics, University of Silesia, Katowice, Poland
The Search For Minimum Potential Energy Structures of Small Atomic Clusters
P. Raczyński, Z. Gburski
Institute of Physics, University of Silesia, Katowice, Poland
A New Simple Fractal Method For Nanomaterials Science and Nanosensors
W. Klonowski1,2, E. Olejarczyk1,2, R. Stępień1,2
1Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland
2GBAF, Medical Research Center, Polish Academy of Sciences, Warsaw, Poland
Molecular Impurity Ions As Centres With Charge Transfer Degrees of Freedom.
V.S. Vikhnin1, T.I. Maksimowa1, J. Hanuza2,3
1AF Ioffe Physical-Technical Institute Russian Academy of Sciences, St.-Petersburg, Russia
2Institute for Low Temperature and Structure Research Polish Academy of Sciences, Wroclaw, Poland
3Department of Bioorganic Chemistry, Faculty of Engineering and Economics,
University of Economics, Wrocław, Poland
Multilayer Al2O3/Mo Composites
H. Matysiak1, Ł. Ciupiński2, A. Olszyna1, K.J. Kurzydłowski1
1Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
2Functional Materials Research Center, Warsaw University of Technology, Warsaw, Poland
