PROCESSING AND DESIGN ISSUES
PRELIMINARY PROGRAM

PROCESSING AND DESIGN ISSUES IN HIGH TEMPERATURE MATERIALS

19-24 May 1996
Davos, Switzerland

Conference Co-Chairs:
Professor N.S. Stoloff
Rensselaer Institute of Technology

Dr. R.H. Jones
Pacific Northwest Laboratories

PRELIMINARY PROGRAM

Note: All technical sessions, poster sessions, and workshops will be held in the Congress Hall (Kongresszentrum).

SUNDAY, 19 MAY l996
MONDAY, 20 MAY l996
TUESDAY, 21 MAY l996
WEDNESDAY, 22 MAY l996
THURSDAY, 23 MAY l996
FRIDAY, 23 MAY l996
POSTER SESSION, THURSDAY, 14:00 - 15:15


SUNDAY, 19 MAY l996

16:00 - 19:00	Registration (Lobby of Cresta Sun Hotel)

19:00 - 20.30	Dinner (Cresta Sun Hotel)

20:30 - 22:30	Opening Reception (Cresta Sun Hotel)

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MONDAY, 20 MAY l996 07:00 - 08:30 Breakfast 08:30 - 09:00 Welcome: Engineering Foundation Conferences Director B.K. Hickernell Introductory Remarks: Conference Chairs N.S. Stoloff R.H. Jones 09:00 - 09:45 KEYNOTE: Implementation Issues for Metal and Ceramic Matrix Composites Prof. A. G. Evans Harvard University Session 1: Micromechanics Session Chairs: M.H. Yoo, Oak Ridge National Laboratory S. Suresh, Massachusetts Institute of Technolgy 09:45 - 10:20 Universal Properties of Bonding at Metal Interfaces J. R. Smith* General Motors 10:20 - 10:40 Coffee Break 10:40 - 11:15 Atomistic Simulations of Dislocations, Grain Boundaries and Cracks M. S. Daw* Clemson University 11:15 - 11:50 The Role of Interfaces in Deformation and Fracture M. H. Yoo and C. L. Fu* Oak Ridge National Laboratory 11:50 - 12:25 Constitutive Relationships of Plasticity and Texture Development H. Mecking* Technical University of Hamburg 12:30 - 14:00 Lunch 14:00 - 18:00 Ad hoc discussions/free time 18:00 - 19:30 Dinner Session 2: Advanced Metallics, Superalloys Session Chairs: M. Nazmy, ABB R. Wagner, GKSS 19:30 - 20:05 Recent Advances in Superalloys H. Harada* NRIM 20:05 - 20:40 Unique Single Crystal Superalloys for Industrial Turbine Application G.L. Erickson* Cannon-Muskegon 20:40 - 20:55 Coffee Break 20:55 - 21:30 Superalloys: The Aging Alloys Have Matured C. Lund* Lockheed Martin Corporation 21:30 - 22:05 Development of Advanced Steels for Steam Turbine Applications R.B. Scarlin* ABB 22:15 Cash Bar (Cresta Sun Hotel)

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TUESDAY, 21 MAY l996 07:00 - 08:30 Breakfast Session 3: Intermetallics Session Chairs: R. Wagner, GKSS M. Nazmy, ABB 08:30 - 09:05 Design of Ni3Al Alloys for Structural Use C. T. Liu, E. P. George and V. K. Sikka* Oak Ridge National Laboratory 09:05 - 09:40 Development of Iron Aluminides for Industrial Applications A. Di Gianfracesco et al* Centro Sviluppo Materiali 09:40 - 10:15 Property Related Processing of Gamma-TiAl Based Alloys with Industrial Applications M. Nazmy, ABB and R. Wagner, GKSS* 10:15 - 10:35 Coffee Break 10:35 - 10:55 Processing and Alloy Development of TiAl-Based Materials M.H. Loretto University of Birmingham 10:55 - 11:30 Challenges in the Development and Application of Beta NiAl as an Engineering Material M. J. Kaufman* University of Florida 11:30 - 12:05 Fatigue and Fracture of High Temperature Intermetallics N.S. Stoloff* Rensselaer Polytechnic Institute 12:05 - 12:40 Intermetallics Research in Japan M. Yamaguchi* Kyoto University 12:45 - 14:00 Lunch 14:00 - 18:00 Ad hoc discussions/free time 18:00 - 19:30 DINNER Session 4: Ceramics and Composites Session Chairs: N. Chawla, University of Michigan M.H. Lewis, University of Warwick 19:30 - 20:05 Thermal Design of Layered Composites S. Suresh* Massachusetts Institute of Technology 20:05 - 20:40 Laminar Ceramics, With and Without Fiber Layers: Processing and Properties F. Lange* University of California- Santa Barbara 20:40 - 21:00 Coffee Break 21:00 - 21:35 Controlling Reaction Paths in Metal Ceramic Composites S.G. Fishman* Office of Naval Research 21:35 - 22:10 Molybdenum Disilicide-Silicon Nitride Composites J.J. Petrovic et al* Los Alamos National Laboratory 22:15 Cash Bar (Cresta Sun Hotel)

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WEDNESDAY, 22 MAY l996 07:00 - 08:30 Breakfast Session 5: Ceramics and Composites Session Chairs: A.G. Evans, Harvard University M.J. Kaufman, University of Florida 08:30 - 09:05 Oxide Fiber/Oxide Matrix Composites H. Schneider, K. K. Chawla and Z. R. Xu* DLR/New Mexico Tech 09:05 - 09:40 Directionally Solidified High Temperature In-Situ Composites B.P. Bewlay, M.R. Jackson and H.A. Lipsitt* General Electric CR&D 09:40 - 10:00 Production of NiAl Composites R.J. Arsenault and R.F. Krause, Jr. University of Maryland/NIST 10:00 - 10:20 Coffee Break 10:20 - 10:40 Design of Composites Based on the Orthorhombic Ti2AlNb Phase D.B. Miracle, et al Air Force Wright Laboratory 10:40 - 11:15 Influence of Interfacial Coating Thickness on the High Frequency Fatigue Behavior of Nicalon/SiC Composites N. Chawla, J.W. Holmes University of Michigan, and R.A. Lowden*, ORNL 11:15 - 11:35 Silicon Nitride: A High Temperature Alloy S.M. Wiederhorn, W.E. Luecke and R.F. Krause, Jr. NIST 11:35 - 11:55 Synthesis and Characterization of Nano-Crystalline Ceramic Materials K. Upadhya and W. Hoffman Hughes Phillips Lab/ USAF 11:55 - 12:15 The Effects of Temperature on the Flow Stress of Polycrystalline Diamond E.J. Brookes et al University of Hull 12:30 - 14:00 Lunch 14:00 - 18:00 Ad hoc discussions/free time 18:00 - 19:30 Dinner Session 6: Environmental Effects I Session Chairs: R.H. Jones, Pacific Northwest Laboratories A. Eckel, NASA Lewis 19:30 - 20:05 Hydrogen Effects and Microstructure in Ti-Al Alloys A.W. Thompson* Lawrence Berkeley Laboratory 20:05 - 20:40 Hydrogen Effects on Nickel-Base Single Crystals J. Chene and A. M. Brass* University of Paris 20:40 - 20:55 Break 20:55 - 21:15 Fracture and Fatigue Behavior in Intermetallics, Ceramics and Their Composites at Ambient and Elevated Temperatures K.T. Venkateswara Rao, C.J. Gilbert and R.O. Ritchie University of California-Berkeley 21:15 - 21:50 Boron-Modified and Germanium-Doped Silicide Diffusion Coatings for Ti-Al-Nb, Nb-Ti-Al, Nb-Cr and Nb-base Alloys B.V. Cockeram, Westinghouse-Bettis Atomic Power Laboratory, and R.A. Rapp, Ohio State University 22:00 Cash Bar (Cresta Sun Hotel)

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THURSDAY, 23 MAY l996 07:00 - 08:30 Breakfast Session 7: Environmental Effects II Session Chairs: N.S. Stoloff, Rensselaer Institute of Technology J.J. Petrovic, Los Alamos National Laboratory 09:00 - 09:35 Environmental Effects on Crack Growth of SiC/SiC Composites R.H. Jones* Battelle PNL 09:35 - 10:10 Hydrogen Effects on Silicon Based Ceramic Matrix Composites A. Eckel* NASA-Lewis 10:10 - 10:30 Coffee Break 10:30 - 11:05 Environmentally Induced Degradation of Microstructure and Properties in Engineering Ceramics and Composites M.H. Lewis* University of Warwick 11:05 - 11:25 Effects of High Concentration of Water Vapor on Oxidation of Silicon-Based Refractories W. Hillig Rensselaer Polytechnic Institute 11:25 - 11:45 Effects of Processing and Environment on the Properties of SiC/SiC Composites P. Lipetzky, N.S. Stoloff and G. Dvorak Rensselaer Polytechnic Institute 11:45 - 12:20 In Situ Processing of Composites by Partial Reduction Reactions and Controlled Application of Stresses S.L. Sass et al* Cornell University 12:30 - 14:00 Lunch Session 8: Processing and Design I Session Chairs: M. Yamaguchi, Kyoto University H. Fraser, Ohio State University 14:00 - 15:15 POSTER SESSION (with Coffee Service) 15:15 - 15:50 Processing Issues Related to Environmental Effects in Composites and Intermetallics F.S. Pettit and G. H. Meier* University of Pittsburgh 15:50 - 16:25 The Design of the Synthesis of a Functionally Graded Material R. Torres, J.J. Moore, G. Mustoe and U. Reimanis* Colorado School of Mines 16:25 - 17:00 Conventional Solidification, Thermomechanical Processing and Mechanical Properties of Intermetallic-Refractory Metal Composites M.G. Mendiratta and P.R. Subramanian* Universal Energy Systems 17:00 - 17:20 Materials for Advanced Power Plants T.B. Gibbons ABB Combustion Engineering 19:00 CONFERENCE BANQUET

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FRIDAY, 23 MAY l996 07:00 - 08:30 Breakfast Session 9: Processing and Design II Session Co-Chairs: S.G. Fishman, Office of Naval Research F.S. Pettit, University of Pittsburgh 09:00 - 09:35 Development of a New Series of Nb Aluminides for Elevated Temperature Applications H.L. Fraser, et al,* Ohio State University 09:35 - 10:10 Processing, Microstructure and Properties of Near g-TiAl Alloys L. Christodoulou and S.L. Kampe Imperial College 10:10 - 10:30 Ductility Improvement of Al-Rich Ni3Al by Unidirectional Solidification T. Hirano and T. Mawari NRIM 10:30 - 10:50 Coffee Break 10:50 - 11:10 Metallurgical Aspects of the Casting of Single Crystal Airfoils for Use in Aero Engines and Industrial Gas Turbines P. Aubertin et al University of British Columbia 11:10 - 11:30 Analysis of High Temperature Fatigue Crack Growth K. Sadananda and A.K. Vasudevan NRL/ONR 11:30 - 11:50 Fatigue Life Prediction of Titanium Matrix Composites Under Mission Spectrum Loading T. Nicholas and A. Rosenberger, A.F. Wright Laboratory 11:50 Conference Wrap-Up 12:15 Lunch and Adjournment * INVITED PRESENTATION

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POSTER SESSION, THURSDAY, 14:00 - 15:15 1. N.K. Tolochko et al Acad. Sci. Belarus High Temperature Selective Laser Sintering of Free-Strewed One- Component Metal Powders 2. K. Miyazawa et al University of Tokyo Composites Formation of Zirconia and Fullerene by Sol-Gel Processing 3. L.L. Mishnaevsky Institute for Advanced Materials and Technologies, Kiev Strength Prediction of Particulate Composites with High Content of High Melting Filler 4. L. Lopato et al Institute for Problems of Materials Science of Ukraine, Kiev HfO2(ZrO2)-Y2O3-Eu2O3 Systems and Fields of Their Applications 5. O.S. Es-Said Loyola Marymount University On the 45 Rolling of Rhenium Metal 6. E.F. Tschernikova, et al Fraunhofer Institut Dresden Study of Nanosized Ti-C-B and Ti-Fe-C-B Powders Prepared by Mechanical Alloying and Their Sintering Behavior Under High Pressure 7. A. Newman, S. Sampath and H. Herman SUNY Stony Brook Purity and Processing Effects on the Microstructure and Properties of MoSi2 8. A. Mitchell et al University of British Columbia/National University of Mexico/Nippon Steel Fabrication of Ultraclean Steels via EBM 9. V. V. Klubovich, V. Vrybanik and U. V. Txarenko Acadacemy of Science Belarus Prospects of the Ultrasound Vibrations Use in the Process of the Materials Heat Treatment 10. J. A. Christodoulou et al Imperial College/VPI Boride Chemistry and Morphology and Gamma-TiAl Based Intermetallics Alloyed with Ta, Mo amd Nb 11. A. M. Brass Universite' Paris Sud Hydrogen Diffusion and Trapping in Iron Aluminides 12. C.W. Li and F. Reidinger Allied Signal Microstructural Behavior of an In Situ Reinforced Silicon Nitride Under Tensile Creep Deformation 13. A.V. Shevchenko, A.K. Ruban and E.V. Dudnik Institute for Problems of Materials Science NAS Ukraine Hydrothermal Ultrafine T-ZrO2 Powders

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