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Advanced Ceramics
Microwave Research at Virginia Tech
D.C. Folz
Dept. of Materials Science and Engineering, Virginia Tech, Blacksburg, Va.
The Virginia Tech microwave research laboratory has studied heating, self-propagating high-temperature synthesis, and recycling and waste remediation processes using microwave techniques.
Self-Healing Seals for SOFCs
Porous Fibrous Mullite Bodies Based on Nonwoven Cellulose Structure
S.M. Naga, A.A. El-Maghraby and A.M. El-Rafei
Ceramics Dept., National Research Centre, Dokki, Cairo, Egypt
P. Greil
Textile Dept., Faculty of Applied Arts, Helwan University, Cairo, Egypt
T. Khalifa
Dept. of Material Science (III), University of Erlangen-Nuenberg, Erlangen, Germany
N. Ibrahim
Textile Research Div., National Research Centre, Dokki, Cairo, Egypt
A porous mullite body that had no drying or firing cracks was prepared using rapid fluid infiltration into a textile template structure.
Synthesis of Solid-Oxide Fuel Cells Using Microwave Sintering
S. Takahashi, S. Suda, K. Jono and K. Kawahara
Japan Fine Ceramics Center, Nagoya, Japan
A. Doi
DAIDO Institute of Technology, Nagoya, Japan
Dense 8-mol%-Y2O3-stabilized ZrO2 solid-oxide fuel cell electrolytes were prepared using microwave sintering and were compared with those prepared using conventional sintering.
Industrial Applications of Advanced Spark Plasma Sintering
Masao Tokita
R&D Center, New Materials & Processing Systems Div., Sumitomo Coal Mining Co. Ltd., Kanagawa Science Park (KSP), Sakado, Kawasaki, Kanagawa, Japan
Spark plasma sintering has been used to manufacture high-wear-resistant and hard WC/Co/Ni dense ceramics, including aspheric glass-lens molding dies, sandblasting nozzles and extruding machine screws.
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Glass & Optical Materials
the GlassResearcher
Advanced Melting Technology Delivers Standout Performance
Neil G. Simpson
BOC Global Technical Solutions
Convective glassmelting heat-transfer technology has been applied successfully in container-glass and CRT panel-glass manufacturing facilities.
Effect of Oxides on Decreasing Melt Viscosity and Energy Demand of E-Glass
F.T. Wallenberger, R.J. Hicks and A.T. Bierhals
Fiber Glass Science & Technology, Glass Technology Center, PPG Industries Inc., Pittsburgh
By compositional modeling, the forming temperature (viscosity) of commercial E-glass melts has been significantly decreased by decreasing percent SiO2 and increasing percent CaO, and/or by adding a flux such as Li2O. This reduces the energy use and cost, while yielding fibers that meet ASTM and user specifications.
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Refractory Ceramics
Elastic Modulus of Gelcast Cellular Ceramics at High Temperatures
F.S. Ortega
Universidade do Vale do Paraíba, São José dos Campos, S.P., Brazil
J.A. Rodrigues and V.C. Pandolfelli
Materials Engineering Dept., Federal University of São Carlos, São Carlos, S.P., Brazil
The elastic modulus of alumina cellular samples with various porosities produced by gelcasting foamed suspensions was measured at room and high temperatures, and the results were compared with a novel equation that describes the effect of porosity and temperature on elastic modulus.
Engineered Refractories for Slagging Gasifiers
Kyei-Sing Kwong, James Bennett, Rick Krabbe, Hugh Thomas and Cynthia Powell
DOE Albany Research Center, Albany, Ore.
The mechanical and drying behavior of refractory castables that contained short and long steel fibers was compared with castables that contained polyaramid fibers.
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