Accession Number : AD0677292

Title :   ELECTROHYDRODYNAMIC SPRAYING OF GALLIUM-INDIUM ALLOY,

Corporate Author : ILLINOIS UNIV URBANA CHARGED PARTICLE RESEARCH LAB

Personal Author(s) : Swatik,Donald S.

Report Date : 23 JAN 1967

Pagination or Media Count : 57

Abstract : The electrical atomization of a liquid eutectic alloy of Gallium and Indium was investigated in a vacuum. A time-of-flight mass spectrometer was used to determine the drop characteristics in the spray. The atomization, per se, results from the instability created at the liquid-vacuum interface by the electric stress of an applied static electric field. The mass flow rate as well as the liquid parameters and the electric field determine the liquid behavior during the spraying process. Thus, these parameters at the liquid surface were considered to be the important aspects of the study. The operating mode of the atomization process and the specific charge distribution of the sprayed particles was determined for fields ranging from the minimum required to create instability to fields of sufficient amplitude to evaporate the parent atoms from the liquid surface as ions by field emission. Multiatomic ions, as well as macroscopic drops, were present in the spray depending on the values of the major parameters of the spraying process. (Author)

Descriptors :   (*SPACE PROPULSION, ELECTROSTATICS), (*GALLIUM ALLOYS, ATOMIZATION), (*INDIUM ALLOYS, ATOMIZATION), ELECTRIC PROPULSION, CHARGED PARTICLES, SPRAYS, ELECTRIC FIELDS, THEORY, FIELD EMISSION, SPACE CHARGE, PARTICLE BEAMS, THESES, ENERGY CONVERSION

Subject Categories : Non-electrical Energy Conversion
      Electric and Ion Propulsion

Distribution Statement : APPROVED FOR PUBLIC RELEASE