摘要:

A method is described, involving the use of the Jones and Lamson Pedestal Comparator, for estimating velocities of detonation from the photographic record obtained on a rapidly moving film. The increase in detonation velocity in cavitated charges is accompanied by the appearance of a luminous effect which moves down the cavity approximately 1.6 times faster than the detonation wave. Both the luminous effect and the increase in detonation velocity disappear when the cavity is filled with water.

ISSN:1923-4287    

DOI:10.1139/cjr48b-043

出版商:NRC Research Press    

年代:1948

数据来源: NRC

摘要:

The conversion of uranous ion to uranyl ion at a platinum anode has been studied over a wide range of current densities and anode potentials. At high current densities, the rate of the oxidation is dependent on the uranous ion concentration and is independent of the particular current density used. At low current densities, the rate of the process increases exponentially with increases in the anode potential and temperature, but is independent of the uranyl ion concentration. It is concluded that at high current densities, the rate of oxidation is limited by the rate of diffusion of uranous ion to the anode, while at low current densities, the rate of the reaction is limited by the slowness in electron transfer between the metallic ion and the anode. A formal correlation is made between the irreversible characteristics of this system and those displayed during the electrodeposition of hydrogen and oxygen from aqueous solution.

ISSN:1923-4287    

DOI:10.1139/cjr48b-044

出版商:NRC Research Press    

年代:1948

数据来源: NRC