James G Kulleck

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The crystal structure of solvent-free Li2B12H12 has been determined by powder X-ray diffraction and confirmed by a combination of neutron vibrational spectroscopy and first-principles calculations. This compound is a possible intermediate in the dehydrogenation of LiBH4, and its structural characterization is crucial for understanding the decomposition and(More)
R. C. Bowman, Jr.,1,* Natalie L. Adolphi,2 Son-Jong Hwang,3 J. G. Kulleck,1 T. J. Udovic,4 Q. Huang,4 and H. Wu4,5 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA 2New Mexico Resonance, Albuquerque, New Mexico 87106, USA 3The Division of Chemistry and Chemical Engineering, California Institute of Technology,(More)
2139., [2] International Centre for Diffraction Data, Newtown Square, PA 19073-3273 U.S.A., [3] Von Dreele R.B. (2000) 49 Denver X-ray Conference, Colorado, [4] The Rietveld Method, Ed. R.A. Young (1993) International Union of Crystallography, Oxford University Press) 4 5 6 7 8 2θ, deg In te ns ity ( c /s ) L D Lunar and Planetary Science XXXIV (2003)(More)
Destructive analyses of impregnated-cathode assemblies from an ion thruster life test were performed to characterize erosion and degradation after 30,472 h of operation. Post-test inspection of each cathode included examination of the emitter (insert), orifice plate, cathode tube, heater, anode assembly, insulator, and propellant isolator. The(More)
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