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  • Other Sources  (3)
  • Inorganic, Organic and Physical Chemistry  (2)
  • Composite Materials  (1)
  • 2005-2009  (3)
  • 2008  (3)
  • 1
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    Stabilized tin-oxide-based oxidation/reduction catalysts (2008)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.
    Keywords: Inorganic, Organic and Physical Chemistry
    Format: application/pdf
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  • 2
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    In-situ Thermal Treatment of Trichloroethene at Marshall Space Flight Center (2008)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: This viewgraph presentation describes the in-situ thermal treatment of trichloroethene at Marshall space Flight Center. The contents include: 1) Background 1 and 2; 2) Source Area-13; 3) In-situ Thermal Treatment; 4) SA-13 Lithology; 5) SA-13 In-Situ Thermal TS; 6) SA-13 ISTD System Components; 7) ISTD Overview; 8) Heaters; 9) SA-13 ISTD Wellfield Layout; 10) SA-13 Well Field; 11) ISTD Process and Instrumentation; 12) Treatment Zone Temperature; 13) SA-13 System Removals; 14) SA-13 DNAPL (typical photos); 15) Treatment Results 1-5; and 16) SA-13 TCE Removal Summary.
    Keywords: Inorganic, Organic and Physical Chemistry
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  • 3
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    Measurement and Prediction of the Thermomechanical Response of Shape Memory Alloy Hybrid Composite Beams (2008)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: An experimental and numerical investigation into the static and dynamic responses of shape memory alloy hybrid composite (SMAHC) beams is performed to provide quantitative validation of a recently commercialized numerical analysis/design tool for SMAHC structures. The SMAHC beam specimens consist of a composite matrix with embedded pre-strained SMA actuators, which act against the mechanical boundaries of the structure when thermally activated to adaptively stiffen the structure. Numerical results are produced from the numerical model as implemented into the commercial finite element code ABAQUS. A rigorous experimental investigation is undertaken to acquire high fidelity measurements including infrared thermography and projection moire interferometry for full-field temperature and displacement measurements, respectively. High fidelity numerical results are also obtained from the numerical model and include measured parameters, such as geometric imperfection and thermal load. Excellent agreement is achieved between the predicted and measured results of the static and dynamic thermomechanical response, thereby providing quantitative validation of the numerical tool.
    Keywords: Composite Materials
    Type: LF99-8568 , Jounal of Intelligent Material Systems and Structures; 19; 2; 129-143
    Format: text
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