Papers Presented at
Centrifugal Materials Processing IV
The Fourth International Workshop on
Materials Processing at High Gravity
May 29 to June 2, 2000;  Clarkson University, Potsdam, New York 13699-5814, USA
Monday 29 May: Morning session.  Chair: Liya Regel

9:00: Welcome and opening.

9:30: Mega-Gravity Experiments on In-Pb Alloys.
Tsutomu Mashimo, Masao Ono, Takahiro Kinoshita and Hidekazu Kanegae; Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto, Japan

10:00: Effect of Gravity on SHS in Elemental and Thermite Systems.
V.N. Sanin, V.I. Yukhvid and A.G. Merzhanov; Institute of Structural Macrokinetics and Materials Science, RAS, Chernogolovka, Russia.

Chair: Giovanni Maizza

11:00: Centrifugal-Thermite Process for Production of Various-Sized Composite Pipes.
Osamu Odawara, Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Japan

11:30: Self-Propagating High-Temperature Processing at High Gravity of the Cu2O-Al and Cu2O-Cu-Al Systems.
A.S. Rogachev, V.N. Sanin, A.E. Sytschev, and V.I. Yukhvid; Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Russia.
R. Orrù, G. Cao and D. Zedda; Dipartimento di Ingegneria Chimica e Materiali, Centro Studi sulle Reazioni Autopropaganti, Unità di Ricerca del Consorzio Interuniversitario Nazionale di Scienza e Tecnologia dei Materiali, Università di Cagliari, Cagliari, Italy

Chair: Osamu Odawara

1:30:  Effect of Gravity on Arc Shape in GTA Welding.
Hidetoshi Fujii, Yosuke Sumi, Yasuhiro Aoki, and Kiyoshi Nogi; Osaka University, Joining and Welding Research Institute, Osaka, Japan

2:00:  The Effect of Gravity on the Weld Zone Shape of a Pure Metal.
Daryush K. Aidun, Mechanical & Aeronautical Engineering Department, Clarkson University, Potsdam, NY

2:30:  Solidification Structures and Mechanical Properties of Alloys Cast by Electromagnetic Centrifugal Casting.
YuanSheng Yang and ZhuangQi Hu; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China

Chair:  Stanislav Nikanorov

3:30:  DSMC Study of Centrifugal Gas Separation for Diamond Thin Film Chemical Vapor Deposition (CVD)
S. Bellingeri, Electrotechnical Laboratory, Tsukuba, Japan;
G. Maizza, Dipartimento di Scienza dei Materilai ed Ingegneria Chimica, Politecnico di Torino,Italy

4:00:  Low-Temperature Catalyst-Free Synthesis of Diamond and Cubic Boron Nitride.
I.M. Starchenko, Institute of Solid State and Semiconductor, Physics Academy of Sciences of Belarus, Minsk, Belarus.

4:30:  Diamond Thin Film Processing by High Gravity DC-Plasma CVD.
Motoi Nakazato, Tetsuya Suzuki and Yuji Nagasaka; Keio University,Yokohama, Japan;
Yoshiyuki Abe and Stefano Bellingeri, Electrotechonical Laboratory, Tsukuba, Japan;
Giovanni Maizza, Politecnico di Torino, Torino, Italy

5:00:  Physical Vapour Deposition of CuPc Organic Thin Films in High Gravity.
K. Karimov, Physical Technical Institute, Dushanbe,Tajikistan;
S. Bellingeri and Y. Abe; Electrotechnical Laboratory, Tsukuba, Japan

Tuesday 30 May morning session.  Chair: Joachim Behlke

8:30:  Diffusion in Concentrated Suspensions in Sedimentation and in Colloid and Quantum-Dot Synthesis
Vladimir Privman, Department of Physics, Clarkson University

9:00:  Synthesis of Nanoparticles by Multiphase Reactive Precipitation in a High Gravity Reactor: (I) Experimental
Jianfeng Chen, Yuhong Wang and Chong Zheng, Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China

9:30:  Synthesis of Nanoparticles by Multiphase Reactive Precipitation in a High Gravity Reactor: (II) Modelling
Yuhong Wang, Jianfeng Chen and Chong Zheng, Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China

Chair:  William Wilcox

10:30:  Analytical Ultracentrifugation: A Valuable Tool to Recognize the Crystallization Conditions of Proteins.
Joachim Behlke and Otto Ristau; Max Delbrück Center of Molecular Medicine, Berlin, Germany

11:00:  Influence of High Gravity on Perikinetic Coagulation.
Rudy Folkersma, Alois J.G. van Diemen and Hans N. Stein, Laboratory of Colloid Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands

11:30:  Determination of the Constitutive Relationship of Concentrated Suspensions during Cake Filtration and Consolidation and the Effect of Fine Particle Migration.
V. Ramarao and C. N. Satyadev; Faculty of Paper Science and Engineering, SUNY College of Environmental Science & Forestry, Syracuse, NY; Chi Tien Department of Chemical Engineering, National University of Singapore, Singapore

Chair: Robert Parfeniev

1:30:  Simulation of Sedimentation of Atoms in a Binary Alloy under a Strong Gravity Field.
Massao Ono and Tsutomi Mashimo; Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto, Japan

2:00:  Molecular Graduation in Glass by using a Novel High Gravity Method for Si-Ti Graded Glass Preparation.
M. Nishihara, R. Nishimura, H. Ihara, T. Sagawa, S. Matsuzaki, and T. Mashimo; Kumamoto University, Japan.

2:30:  Molecular Weight Measurements of Nitrocellulose by High Speed Sedimentation.
Victor Malchevsky, Moscow Institute of Chemical Technology, Moscow, Russia.

Chair: Rodney Herring

3:30:  Spinning Disc Reactor Technology for Process Industries.
R. Jachuck and C. Ramshaw; Process Intensification and Innovation Centre (PIIC), Department of Chemical and Process Engineering, University of Newcastle upon Tyne, UK

4:00:  The Displacement of Composition Figurative Points in Phase Diagrams by Centrifugation.
Vladimir N. Gurin, Vladimir N. Osipov, Maria M. Korsukova, Stanislav P. Nikanorov, Alexei P. Nechitailov and Zoja I. Uspenskaya; Ioffe Physical-Technical Institute, Russian Academy of Sciences, St. Petersburg, Russia

4:30:  Effects of High Gravity on Interfacial Free Energy.
C. Patuelli and R. Tognato, Dipartimento di Fisica and Istituto Nazionale di Fisica della Materia, Bologna, Italy.

After-dinner speaker:
How can we reduce the effects on humans of exposure for minutes on a short-arm centrifuge?
Kazuyoshi Yajima, Nihon University School of Medicine, Tokyo, Japan

Wednesday 31 May morning session.  Chair: Liqiu Wang

8:30:  Flow Patterns in a Rotating Cavity.
Minerva Vargas, Eduardo Ramos, Fernando Sierra and Andriy Avramenko*;
Center for Energy Research, National University of Mexico, Mexico
* Permanent address: Institute of Engineering Thermophysics, Ukranian National Academy of Sciences, Ukraine

9:00:  Fundamentals of Flow and Thermal Convection in Rotating Porous Media and Mushy Layers.
Peter Vadasz , Department of Mechanical Engineering, University of Durban-Westville, South Africa

9:30:  Transition to Weak Turbulence and Chaos in Natural Convection in Porous Media and Mushy Layers.
Peter Vadasz, Department of Mechanical Engineering, University of Durban-Westville, Durban, South Africa

Chair: Minerva Vargas

10:30:  Coriolis Effect on Convection in a Rotating Porous Layer Heated from Below.
Peter Vadasz , Department of Mechanical Engineering, University of Durban-Westville, South Africa

11:00:  A Three-Dimensional Linear Stability Analysis of Solidifying Alloys in High Gravity.
B.S. Okhuysen and D.N. Riahi; Department of Theoretical and Applied Mechanics,
University of Illinois, Urbana-Champaign, Urbana, Illinois

11:30:  Viscous Fingering in a Rotating Porous Medium.
M.Z. Saghir, Ryerson Polytechnic University, Toronto, Ontario, Canada;
M.R. Islam, Dalhousie University, Halifax, Nova Scotia, Canada

Chair:  Peter Vadasz

1:30:  Flow Through a Rotating Rectangular Duct.
Craig C. Jahnke and Daniel T. Valentine; Clarkson University

2:00:  Body-force-driven Multiplicity and Stability of Combined Free and Forced Convection in Rotating Curved Ducts: Centrifugal Force.
Liqiu Wang and Tianliang Yang; Department of Mechanical Engineering, The University of Hong Kong, Hong Kong

2:30:  Body-force-driven Multiplicity and Stability of Combined Free and Forced Convection in Rotating Curved Ducts: Coriolis Force.
Liqiu Wang and Tianliang Yang; Department of Mechanical Engineering, The University of Hong Kong

Chair: Daniel Valentine

3:30:  Visualization of Stabilizing/Destabilizing Flows in Channels with Curvature and/or Rotation.
Liqiu Wang and K. C. Cheng; Department of Mechanical Engineering, The University of Hong Kong

4:00:  Particle Sizing with Disc Centrifuges Using X-Ray and Light Detection.
Bruce B. Weiner; Brookhaven Instruments Corporation, Holtsville, New York

4:30:  Demonstration of particle sizing instrumentation from Brookhaven Instruments Corporation

After-dinner speaker:
Centrifuge Modeling Applications in Geotechnical and Geoenvironmental Engineering or: Why do we want to Spin One Ton of Dirt Around at 200 MPH?
Thomas F Zimmie, Civil Engineering Department, Rensselaer Polytechnic Institute, Troy, NY

Thursday 1 June morning session.  Chair: Ziad Saghir

8:30:  Optimal Rates of Spreading of a Thin Liquid Drop under the Influence of Gravity, Rotation and Non-Uniform Surface Tension.
E. Momoniat, Centre for Differential Equations, Continuum Mechanics and Applications, Department of Computational and Applied Mathematics, University of the Witwatersrand, Johannesburg, South Africa

9:00:  Effect of High Artificial Gravity on SHS Processes.
V.I. Yukhvid, V.N. Sanin and A.G. Merzhanov; Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Russia

9:30:  Directional Solidification of Aluminum and Lead in a Centrifuge.
Sh. Mavlonov and H. Shodiev; Physics Department, Samarkand State University, Samarkand, Uzbekistan

Chair:  Yuansheng Yang

10:30:  Defect Formation in Tellurium at Different Gravitational Levels.
R.V. Parfeniev, I.I. Farbshtein and S.V. Yakimov; A.F. Ioffe Physico-Technical Institute RAS, St. Petersburg, Russia;
V.P. Shalimov and A.M.Turchaninov; RDPC "Kompozit", Korolev, Russia.

11:00:  Vibration during Centrifugation.
Liya L. Regel and William R. Wilcox; Clarkson University
Ramnath Derebail, Agilent Technology, San Jose, CA, USA;
Peter V. Skudarnov, Hemispheric Center for Environmental Technology, Florida International University, Miami, Florida, USA.

11:30:  Effects of Ampoule Rotation on Transport Processes during Crystal Growth.
C.W. Lan, Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC

Thursday afternoon session.  Chair:  Goodarz Ahmadi

1:30:  Comparative Analysis of Semiconductor Crystal Growth from Solution under Various Gravitational Conditions.
Igor V. Barmin and Alexander S. Senchenkov, KBOM, Moscow, Russia

2:00:  Amorphous-Nanocrystalline Zr-based Alloys Obtained by Quenching Levitated Melts.
M.P.Volkov and B.T. Melekh; A.F. Ioffe Physico-Technical Institute RAS, St. Petersburg, Russia

2:30:  Rotating Magnetic Field for Elimination of Macro-Inhomogeneities in Crystals Grown in Space
Alexander S. Senchenkov and Igor V. Barmin, KBOM, Moscow, Russia

Chair: Chungwen Lan

3:30:  The Effect of Centrifugation on the Composition, Structure and Strength of Alkali Halide Crystals.
Stanislav P. Nikanorov, Lev I. Derkachenko, Igor N. Zimkin, Vladimir N. Osipov and Maria M. Korsukova; Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St. Petersburg, Russia

4:00:  Physico-Chemical Analyses under Conditions of High Gravitation.
Sh. Mavlonov and H. Shodiev; Physics Department, Samarkand State University, Samarkand, Uzbekistan

4:30:  Numerical Modeling and Flow Visualization in the Gradient Freeze Configuration during Centrifugation.
Peter V. Skudarnov, Hemispheric Center for Environmental Technology, Florida International University, Miami, Florida, USA;
Liya L. Regel, William R. Wilcox and Goodarz Ahmadi; Clarkson University

Friday 2 June poster session.  Chair: Vladimir Gurin

High Speed Sedimentation for the Adjustment of Composition of Rocket Engine Propellant.
Victor A. Malchevski, Moscow Institute of Chemisty and Technology, Moscow, Russia

Experimental Setup for Studying Phenomena in Reacting Media under the Action of Centrifugal Forces.
Konstantin G. Kostarev and Andrey V. Shmyrov; Institute of Continuous Media Mechanics, Ural Branch of RAS, Perm, Russia

Production of Ceramic-Lined Composite Pipes by the GS-T SHS Process with Mechanical Vibration.
Jianjiang Wang, Zhongmin Zhao, Minghui Ye, Xinkang Du and Jinhua Wen; Shi Jia Zhuang Mechanical Engineering College, He Bei, China

Interfacial Phenomena in Ceramic-Lined Pipes Produced by the GS-T SHS Process.
Zhongmin Zhao, Jianjiang Wang, Xinkang Du, Minghui Ye and Jinhua Wen; Shi Jia Zhuang Mechanical Engineering College, He Bei, China

Utililization of Microgravity and High Gravity to Prepare Materials with Controlled Properties.
Vladimir A. Briskman and Konstantin G. Kostarev; Andrey V. Shmyrov Institute of Continuous Media Mechanics, Perm, Russia

Influence of Centrifugation on the Conductivity of Poly-N-Epoxypropylcarbazole-Copper Phthalocyanine Films Deposited from Solution.
Khasan Karimov and Khakim Akhmedov; Physical Technical Institute of Academy of Sciences, Aini 299/1, Dushanbe, Tajikistan;
Mohammad Mahroof-Tahir, Department of Chemistry, St. Cloud State University, St. Cloud, MN, USA;
Rizwan M. Gul, Faculty of Metallurgy and Materials Engineering, GIK Institute of Engineering Sciences and Technology, Topi, Pakistan

Dissolution Rate of GaP Crystal on a Centrifuge.
Yuko Inatomi, Kengo Horiuchi and Kazuhiko Kuribayashi; The Institute of Space and Astronautical Science, Kanagawa, Japan

The potential for utilization of high gravity technology and renewable energy resources in agro-industry.
Abduakhat Ashurov, DORO, Dushanbe, Tajikistan

Influence of Magnetic Field on the Macrosegregation of Centrifugal Casting Alloys.
Lijuan Zhang, Yuansheng Yang, and Zhuangqi Hu; Department of Materials, University of Oxford, Oxford, UK

Influence of Centrifugation on the Coagulation of Polytetrafluoroethylene Colloidal Dispersions
John Simmons, Boehringer Ingelheim Pharmaceuticals, Ridgefield CT, USA;
Liya L. Regel, William R. Wilcox and Richard Partch; Clarkson University

A Centrifugal Filtration Concept for Hot-Gas Cleaning
Alireza Mazaheri, Haifeng Zhang and Goodarz Ahmadi, Department of Mechanical and Aeronautical Engineering, Clarkson University

Magnetohydrodynamic Effects in High Gravity Convection during Alloy Solidification.
D. N. Riahi, Department of Theoretical and Applied Mechanics, University of Illinois, Urbana, Illinois

Non-axisymmetric Chimney Convection in a Mushy Layer under a High Gravity Environment
D. N. Riahi, Department of Theoretical and Applied Mechanics, University of Illinois, Urbana, Illinois

Mechanical Behavior of Energetic Materials During High Acceleration.
Y. Lanzerotti, U. S. Army ARDEC Picatinny Arsenal, NJ; and J. Sharma, Naval Surface Warfare Center, Carderock Division, West Bethesda, MD

Influence of Centrifugation on Furnace Temperature Distribution and Freezing Rate of InSb using the Gradient Freeze Technique.
Illa L. Moskowitz, Liya L. Regel and William R. Wilcox; Clarkson University

Influence of Centrifugation on Diamond Film Deposition by Chemical Vapor Transport.
Liya L. Regel and William R. Wilcox; Clarkson University

Gas-Phase Mass Transfer in a Centrifugal Gas-Liquid Contactor with a Stack of Flexible Disks as Packing.
Rajib Mukerjee, Deepanjan Deb, Pavitra Sandilya and D. P. Rao; Department of Chemical Engineering, Indian Institute of Technology, Kanpur, India

Composite Material Structure Analysis using Electron Channeling Patterns and Image Analysis.
Fengcui Li, Liya Regel and William Wilcox; Clarkson University

Gas Tubes and Bubbles in the Quest for Detached Solidification of Ice.
Yazhen Wang, Liya Regel and William Wilcox; Clarkson University

New Non-Wetting Coatings for Detached Solidification Studies
Craig Burkhard, Liya Regel and William Wilcox; Clarkson University

Research on the Relationship between the Gravitational Constant G and other Universal Physical Constants in Quantum Field Theory
Umida R. Ibadova, Samarkand State University, Samarkand, Uzbekistan.



For corrections, comments or questions, please contact  Professor Liya L. Regel
Last modified 4 June 2000.