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Journal of Space Flight, v. 2, issue 9, November 1950

Page 10

10.

THE JOURNAL OF SPACE FLIGHT

642. "The Low Temperature, Low Pressure Hydrogen Atom Initiated Combustion of Hydrocarbons." Badin. J.A.C.S. 72 1550. Atomic hydrogen initiates rapid reaction with oxygen of paraffins such as isobutane at pressures as low as 0.1 to 1.0 mm and temperatures as low as 20C. WAP

645. "The Outlook for Ceramics in Gas Turbines." Duckworth & Campbell. Mech. Eng. 72 128. A general discussion of ceramics in high temperature turbine service is given. While ceramics of great strength and thermal resistance have been developed, the basic flaw in all ceramics has been lack of ductility. As yet there is no ceramic available of even fair ductility. WAP

644. "Refractory Cermets as Cathods." Cronin, Chem. Eng. 57 276. A ceramic metal combination containing 80% ThO2 and 20% molybdenum is being used for magnetron cathodes. It operates well up to the desired 1690C. WAP

645. "Problems of Combustion: Liquid-Propellant Rocket Motors." Canright, Chem. Eng. Progress 46, 228. A discussion of the engineering of rocket motors is given. The use of non-carboniferous fuels should be investigated further as these fuels give less dissociation, lower molecular weights and higher exhaust velocities than do carbon based fuels even at lower energy contents. Reaction kinetics in the motor are considered for ammonia oxygen and for aniline-nitrio acid. WAP

646. "Augmented Flames in Half-Open Tubes." Evans et al. J. Applied Physics 21 44. A study of the effect of a course grid flame augmentor on flame velocity was made. From schlieren photographs and instantaneous pressure measurements, it was shown that the flame augmentor caused an increase in flame velocity from an initial of 5-50 ft/sec. to a high of from 400-800 ft/sec. The augmental causes projected jets of timbulence which spread the flame very rapidly. WAP

647. "Separation of Gases by Fractional Permeation through Membranes." Weller and Steiner. J. Applied Physics. 21 279. A number of thin organic films were studied for gas permeability. Wide differences exist in permeability constants for oxygen, nitrogen and carbon dioxide. Such films as ethyl cellulose can be used to separate the gases. A film of .0075 mm thick of ethyl cellulose shows permeability coeffecients of .075 moles/cm2/min/per atmosphere x 10 ^ -6 for nitrogen, .231 for oxygen and 1.07 for CO2. WAP

648. "Measurement of the Earths Magnetic Field at High Altitudes at White Sands." Singer. Phys. Rev. 77 390. A telemetering Aerobee rocket carrying a magnetometer reached an altitude of 114 kilometers. The earths magnetic field falls off as the inverse cube of altitude as predicted by theory. WAP

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10. THE JOURNAL OF SPACE FLIGHT 642. "The Low Temperature, Low Pressure Hydrogen Atom Initiated Combustion of Hydrocarbons." Badin. J.A.C.S. 72 1550. Atomic hydrogen initiates rapid reaction with oxygen of paraffins such as isobutane at pressures as low as 0.1 to 1.0 mm and temperatures as low as 20C. WAP 645. "The Outlook for Ceramics in Gas Turbines." Duckworth & Campbell. Mech. Eng. 72 128. A general discussion of ceramics in high temperature turbine service is given. While ceramics of great strength and thermal resistance have been developed, the basic flaw in all ceramics has been lack of ductility. As yet there is no ceramic available of even fair ductility. WAP 644. "Refractory Cermets as Cathods." Cronin, Chem. Eng. 57 276. A ceramic metal combination containing 80% ThO2 and 20% molybdenum is being used for magnetron cathodes. It operates well up to the desired 1690C. WAP 645. "Problems of Combustion: Liquid-Propellant Rocket Motors." Canright, Chem. Eng. Progress 46, 228. A discussion of the engineering of rocket motors is given. The use of non-carboniferous fuels should be investigated further as these fuels give less dissociation, lower molecular weights and higher exhaust velocities than do carbon based fuels even at lower energy contents. Reaction kinetics in the motor are considered for ammonia oxygen and for aniline-nitrio acid. WAP 646. "Augmented Flames in Half-Open Tubes." Evans et al. J. Applied Physics 21 44. A study of the effect of a course grid flame augmentor on flame velocity was made. From schlieren photographs and instantaneous pressure measurements, it was shown that the flame augmentor caused an increase in flame velocity from an initial of 5-50 ft/sec. to a high of from 400-800 ft/sec. The augmental causes projected jets of timbulence which spread the flame very rapidly. WAP 647. "Separation of Gases by Fractional Permeation through Membranes." Weller and Steiner. J. Applied Physics. 21 279. A number of thin organic films were studied for gas permeability. Wide differences exist in permeability constants for oxygen, nitrogen and carbon dioxide. Such films as ethyl cellulose can be used to separate the gases. A film of .0075 mm thick of ethyl cellulose shows permeability coeffecients of .075 moles/cm2/min/per atmosphere x 10 ^ -6 for nitrogen, .231 for oxygen and 1.07 for CO2. WAP 648. "Measurement of the Earths Magnetic Field at High Altitudes at White Sands." Singer. Phys. Rev. 77 390. A telemetering Aerobee rocket carrying a magnetometer reached an altitude of 114 kilometers. The earths magnetic field falls off as the inverse cube of altitude as predicted by theory. WAP