Accession Number : AD0822492

Title :   INVESTIGATION OF THERMODYNAMIC PROPERTIES OF ROCKET COMBUSTION PRODUCTS.

Descriptive Note : Final technical rept. 1 Jan 66-3 Jul 67,

Corporate Author : PHILCO-FORD CORP NEWPORT BEACH CA AERONUTRONIC DIV

Personal Author(s) : Boyer, Myron H. ; Inami, Y. Harry ; Potter, Norman D. ; Ju, Fred

Report Date : 21 SEP 1967

Pagination or Media Count : 66

Abstract : The work was concerned primarily with the development of a new mass spectrometric technique by which information on the neutral precursor(s) of a given ion species can be obtained. The experiment involves modulation of the molecular beam and phase sensitive detection of the ions produced by electron impact of the molecules in the neutral beam. A theoretical basis of this experimental method is discussed. Vaporization of BeO from rhenium cells was studied by means of the torsion effusion techniques. Total vapor pressures derived from these measurements are higher than have been inferred from mass spectrometric experiments. Mass spectrometric studies of appropriate vapor species produced in H2-BeO system under Knudsen conditions were carried out at temperatures up to 2426K. A tentative value for the heat of formation of BeOH(g) was evaluated to be -28.2 + or - 10 kcal/mole.

Descriptors :   (*COMBUSTION PRODUCTS, THERMODYNAMICS), (*BERYLLIUM OXIDES, MASS SPECTROSCOPY), (*ROCKET ENGINES, COMBUSTION PRODUCTS), MOLECULAR BEAMS, HIGH TEMPERATURE, VAPORS, PARTICLE BEAMS, HEAT OF FORMATION, KNUDSEN NUMBER, ALUMINUM COMPOUNDS, LITHIUM COMPOUNDS, FLUORIDES, HYDROXIDES, PHASE STUDIES, PHASE DETECTORS, PHASE MODULATION, EXHAUST GASES, IONIC CURRENT, BERYLLIUM COMPOUNDS, ELECTRONS, IONS.

Subject Categories : Inorganic Chemistry
      Thermodynamics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE