Accession Number : AD0699426
Title : LUNAR SOIL SIMULANT STUDY, PHASE B, PART I. OUTGASSING CHARACTERISTICS.
Descriptive Note : Final rept.,
Corporate Author : OHIO RIVER DIV LABS CINCINNATI
Personal Author(s) : Hubbard,J. H. ; Gall,E. S.
Report Date : DEC 1969
Pagination or Media Count : 45
Abstract : The work describes an investigation of the outgassing characteristics of diabase rock crushed to a gradation equivalent to a fine sand. Materials were heated in air to various temperatures and for several exposure periods and were then placed in a high vacuum chamber for pump down. The variation of pressure with time was plotted and the effect of nitrogen overlays between successive pump downs were evaluated. The one-dimension diffusion equation was solved to indicate the way in which pressure varies with depth. (Author)
Descriptors : (*MOON, SOILS), (*ROCK, GASES), TEMPERATURE, SIMULATION, NITROGEN, PRESSURE, VACUUM APPARATUS, TEST METHODS
Subject Categories : Astrophysics
Geology, Geochemistry and Mineralogy
Distribution Statement : APPROVED FOR PUBLIC RELEASE