ASD Technical Report, Numéro 62,Partie 204

activation energy analysis apparatus argon atmosphere atom borides boron calculated calorimeter carbides and borides carbon Chem composition conductivity diffusion dimer effusion electrical electrodynamometer electron diffraction equation equilibrium experimental Figure flow fluorine fluorine partial pressure furnace gaseous graphite hafnium carbide Hafnium Diboride halides heat capacity heat content heat of formation helium HfB2 impurities indicated kcal/mole kinetic studies Knudsen cell linear lithium Margrave mass spectrometer material matrix measurements melting metal molecular molecules molybdenum observed obtained OHIO STATE UNIVERSITY orifice oxidation of ZrB2 oxygen OXYGEN CONSUMED oxygen pressure partial pressure phase ratio reaction refractory reported sample sintered solid species spectra stationary coil stoichiometry structure surface Table technique temperature heat capacity temperature range thermodynamic functions torque Torr vapor pressure Wah Chang Corporation Westrum wire zirconium and hafnium zirconium carbide zirconium diboride zone zone-refined ZrB2 PELLET ZrCl ZrO2