Zobrazeno 1 - 10
of 107
pro vyhledávání: '"R. R. Bowman"'
Autor:
Ralph Jansen, David Avanesian, Susanah R. Kowalewski, Wesley Miller, R. R. Bowman, Ariel Dimston, Matthew G. Granger, Erik Stalcup, Alex Leary
Publikováno v:
AIAA Propulsion and Energy 2021 Forum.
Autor:
Yang Yu, R. R. Bowman, G. Feichter, Subhashish Bhattacharya, Alex Leary, Ronald D. Noebe, Paul R. Ohodnicki, S. Simizu, Richard Beddingfield, V. Keylin, Kevin Byerly, Michael E. McHenry, S. R. Moon
Publikováno v:
JOM. 70:879-891
Metal amorphous nanocomposite (MANC) alloys are an emerging class of soft magnetic materials showing promise for a range of inductive components targeted for higher power density and higher efficiency power conversion applications including inductors
Publikováno v:
Integrated Ferroelectrics. 61:239-248
The focused ion beam microscope (FIB) has been used to fabricate thin parallel-sided ferroelectric capacitors from single crystals of BaTiO3 and SrTiO3. A series of nano-sized capacitors ranging in thickness from ∼660 nm to ∼300 nm were made. Cro
Publikováno v:
Materials Science and Engineering: A. 268:165-183
A study of the 1300 K compressive and tensile creep properties of [001]-oriented NiAl-1Hf (D209) single crystals has been undertaken. Neither post homogenization cooling treatment, minor chemical variations within an ingot or from ingot-to-ingot, nor
Publikováno v:
Materials Science and Engineering: A. 248:132-146
The effects of reinforcement morphology (particulate versus fibers) and particulate volume fraction on the fatigue and fracture behavior of NiAl–Mo composites are discussed. The improved fracture toughness observed in these composites are not assoc
Publikováno v:
Metallurgical and Materials Transactions A. 29:493-505
The results of an investigation of toughening mechanisms in NiAl composites reinforced with yttria-partially stabilized zirconia polycrystals are presented. Different yttria stabilization levels in the zirconia, between 0 and 6 mole pct are employed.
Publikováno v:
Metallurgical and Materials Transactions A. 28:2755-2761
Continuous filament reinforced W/NiAl and Al2O3/NiAl composites (as-processed, annealed, and thermally cycled) have much higher dislocation densities than that of monolithic NiAl. These higher dislocation densities resulted from the relaxation of the
Publikováno v:
Journal of Materials Research. 12:2191-2197
The influence of organic binders on fiber/matrix bonding during the powder metallurgy fabrication of sapphire fiber-reinforced NiAl matrix composites (sapphire/NiAl) was investigated. One composite panel was fabricated using a poly(methyl methacrylat
Thermal cycling response and oxidation behavior of Al2O3/NiAl composites with interfacial Mo coating
Autor:
R. R. Bowman, Ajay K. Misra
Publikováno v:
Materials Science and Engineering: A. 196:197-204
Thermal cycling response and oxidation behavior of Al 2 O 3 /NiAl composites with interfacial Mo coating were studied and results compared with that for weakly bonded composites without any interfacial coating. Thermal cycling of composites with inte
Publikováno v:
Metallurgical and Materials Transactions A. 26:615-628
The mechanical properties of NiAl-matrix composites reinforced with 125-μm diameter single-crystal A12O3 (sapphire) fibers have been examined over the temperature range of 300 to 1200 K. Composites were fabricated with either a strong or weak fiber-