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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Quantum effects in H-bond symmetrization and in thermodynamic properties of high pressure ice
Not provided.
A survey of thermodynamic properties of the compounds of the elements chnops progress report, 1 feb. - 30 jun. 1965
Heat capacities, entropies, enthalpies, and free energies of organic and inorganic compounds of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur
Survey of thermodynamic properties of the compounds of the elements CHNOPS Sixth preliminary report, 1 Oct. - 31 Dec. 1965
Heat capacity data on polyhydroxy compounds, water, carbon dioxide, and ammonia and vapor pressure data on methane, ammonia, and amino acids
Calorimetric study of the thermodynamic properties of the nickel-cadmium cell Final report, 1 Oct. 1964 - 31 Dec. 1965
Thermal properties of electrochemical cells from calorimetry of nickel-cadmium battery
Thermodynamic properties of saturated liquid parahydrogen charted for important temperature range
Six entropy diagrams for parahydrogen in or near the saturated liquid state cover the temperature range from 29.16 degrees to 42.48 degrees R with pressures to 100 psia and mixtures of the liquid and vapor phases to 0.003 quality. The diagrams are printed in color, are 19 by 30 inches in size, and are suitable for wall mounting.
Thermodynamic properties of a magnetized Fermi gas.
Magnetized Fermi gas equation of state, normal stresses, energy and particle densities, degenerate behavior and grand partition function
Real-gas effects in critical flow through nozzles and thermodynamic properties of nitrogen and helium at pressures to 300 times 10 sup 5. Newtons per square meter /approx. 300 ATM/
FORTRAN 4 subroutines for calculating critical flow factor to determine mass flow rate of gaseous helium and nitrogen through critical flow nozzles
A survey of thermodynamic properties of the compounds of the elements CHNOPS Progress report, 1 Jul. - 31 Dec. 1968
Tabulated data on heats of combustion and heats of formation of organic compounds of biological interest
Thermodynamic properties of interstitial elements in the refractory metals Semiannual report, 1 Dec. 1968 - 31 May 1969
Carbon activity in refractory metals
A survey of thermodynamic properties of the compounds of the elements CHNOPS Progress report, 1 Jan. - 30 Jun. 1969
Heats of combustion and formation for aliphatic compounds, hydrocarbons, and phenols
The thermodynamic properties of gaseous niobium chlorides.
Nb-gaseous Nb chlorides equilibrium from transpiration measurements at 800-1400 C, confirming importance of Nb pentachloride, Nb tetrachloride and Nb trichloride
Use of thermodynamic properties of metal-gas systems as low-pressure standards
Modified version of Sievert's apparatus accurately calibrates low pressure measuring instruments. Metal-gas system is composed of hydrogen in two-phase equilibrium with erbium to obtain reproducible hydrogen pressures.
A survey of thermodynamic properties of the compounds of the elements CHNOPS Progress report, 1 Oct. - 31 Dec. 1969
Data on heats of combustion and formation of various classes of organic compounds
Thermodynamic properties of liquid metals
Technique for determining heats of fusion and heat capacities of liquid metals at high temperature
The thermodynamic properties of nitrogen from 65 to 2000 K with pressures to 10,000 atmospheres
An equation of state is presented for liquid and gaseous nitrogen for temperatures from 65 degrees K to 2000 degrees K and pressures to 10,000 atmospheres. All the pressure-density-temperature data available from published literature have been corrected and applied to bring experimental temperatures into accord with the International Practical Temperature Scale of 1968. The coefficients of the equation of state were determined by a weighted least squares fit to selected published pressure-density-temperature data. The methods of weighting the various data for simultaneous fitting are presented and discussed.
Solid-gas phase equilibria and thermodynamic properties of cadmium selenide.
Accurate vapor pressures are determined through direct weight loss measurements using the Knudsen effusion technique. The experimental data are evaluated by establishing the mode of vaporization and determining the heat capacity of cadmium selenide at elevated temperatures. Additional information is obtained through a second- and third-law evaluation of data, namely, the heat of formation and the absolute entropy of cadmium selenide. A preferential loss of selenium during the initial heating of CdSe is observed, which leads to a deviation in stoichiometry.
Lattice model calculation of elastic and thermodynamic properties at high pressure and temperature
The elastic constants and the entire frequency spectrum were calculated up to high pressure for the alkali halides in the NaCl lattice, based on an assumed functional form of the inter-atomic potential. The quasiharmonic approximation is used to calculate the vibrational contribution to the pressure and the elastic constants at arbitrary temperature. By explicitly accounting for the effect of thermal and zero point motion, the adjustable parameters in the potential are determined to a high degree of accuracy from the elastic constants and their pressure derivatives measured at zero pressure. The calculated Gruneisen parameter, the elastic constants and their pressure derivatives are in good agreement with experimental results up to about 600 K. The model predicts that for some alkali halides the Grunesen parameter may decrease monotonically with pressure, while for others it may increase with pressure, after an initial decrease.