National Aeronautics and Space Administration , Glenn

N. P. Bansal and S. R. Choi, Processing of alumina-toughened zirconia composites, NASA/TM—2003-212451, National Aeronautics and Space Administration, Glenn Research Center, Cleveland, OH (2003). 

National Aeronautics and Space Administration Glenn Research Center... 

R. A. Miller, Thermal Barrier Coatings for Aircraft Engines History and Direction, pp. 17 34 in NASA CP 3312 (Ed. W.J. Brindley), National Aeronautics and Space Administration, Glenn Re... 

S. R. Choi and N. P. Bansal, Strength and Fracture Toughness of Zirconia/Aliimina Composites for Solid Oxide Fuel Cells, Ceram. Eng. Sci. Proc., 23[3] 741 750 (2002) Processing and Mechanical Properties of Various Zirconia/Alumina Composites for Fuel Cells Applications, NASA/TM 2002 211580, National Aeronautics and Space Administration, Glenn Research Center, Cleveland, OH (2002) also presented at CIMTEC 2002 Conference, paper no. G1 P03 (to be published in the proceedings), June 14 18, 2002, Florence, Italy. 

This research has been funded by the National Aeronautics and Space Administration (NASA) - Glenn Research Center (GRC) under contract NAG3-2751. The authors are grateful to Mr. Timothy Smith, NASA-GRC Program Manager and Dr. David L. Block (FSEC) for their support of this work. 

Navier-Stokes Equations 3-dimensional-unsteady. Glenn Research Center. National Aeronautics and Space Administration, http //www.gic.nasa.gov/ WWW/K- 12/airplane/nseqs.html... 

A large sample set of representative flexural test specimens from each of the billets was tested at NIST by the SCF and PB (SEPB) methods in accordance with C 1421 unless otherwise noted. In addition, a few test specimens from billets C and H were tested by the CNB method at NIST and at National Aeronautics and Space Administration (NASA)-Glenn Center. As we will show, fracture toughness was independent of test method. A substantial number of additional experiments using nonstandardized procedures were conducted but were not used for the SRM database. Data from these dozens of supplemental experiments were very important for establishing the robustness of the individual test methods and for confirming the tolerances and procedures in the ASTM and ISO standards. 

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