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Type of Document	Dissertation
Author	Caputi, Roger William
URN	etd-09102002-145935
Persistent URL	http://resolver.caltech.edu/CaltechETD:etd-09102002-145935
Title	Studies of liquid mercury and liquid mercury-gallium systems by x-ray diffraction
Degree	PhD
Option	Chemistry
Advisory Committee	Advisor Name Title unknown Committee Member
Keywords	none
Date of Defense	1964-11-03
Availability	unrestricted
Abstract NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. The purpose of this study was to determine the radial distribution of pure mercury and mercury-gallium mixtures by xray diffraction. Work was also done to resolve the problem of whether microdroplets of the solute metal existed in the solvent metal of the mercury-gallium system or whether the mercury-gallium mixtures were true solutions. The experimental system used a reflection geometry from a horizontal free surface of the liquid metals. A silver x-ray tube was used in conjunction with a scintillation detector and pulse height analyzer. Data points were taken over an S range of approximately [...] to [...]. Three samples were run at 0 [degrees], 30 [degrees] and 50 [degrees] C. The compositions of the three samples were pure mercury, 0.9658 mole froction of mercury, and 0.0197 mole fraction of mercury. The peak positions of the final radial distribution functions for all samples showed no significant change over the temperature range used. The average positions of the first and second peaks of the mercury curves were 3.01 [...] and 5.80 [...] respectively. The coordination numbers for mercury as determined by the symmetrical curve method were 7.5, 7.3, and 7.0 atoms for the 0 [degrees], 30 [degrees] and 50 [degrees] C runs respectively. The final results indicated that both samples of mercury-gallium were true solutions.
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