A parametric and microscopic study of the solid solubility of gold in aluminum
"Determinations of lattice constants at room temperature of aluminum gold alloys in the solid solution region have failed to confirm the solid solubility limit of gold in aluminum at 642° C, according to Ageew and Ageewa. Instead a minimum value (a25° = 4.04955 A) of the lattice parameter was detected at 0.50 weight percent gold. The coefficient of thermal expansion of an aluminum gold alloy shows the influence of gold in decreasing the coefficient below the value for pure aluminum. The lattice constant for high purity aluminum (a25° = 4.04965 A) agrees well with values reported for aluminum of the same purity.
The high stability of AI2Au compound is verified by front reflection lines in x-ray diffraction films of alloys with as low as 0.50 weight percent gold content.
The shape, either globular or lamellar, of the Al2Au compound in the eutectic depends on the previous heat treatment of the sample.
The solid solubility of gold in aluminum at 642° C was determined by microstructure studies to be more than 0.50 but less than 0.75 weight percent gold"--Abstract, page ii.
Straumanis, Martin E., 1898-1973
Larson, Andrew H.
Planje, Theodore J., 1919-1980
Lorey, G. Edwin
Materials Science and Engineering
M.S. in Metallurgical Engineering
Missouri School of Mines and Metallurgy
viii, 70 pages
© 1961 Claude Lowell Woodard, All rights reserved.
Thesis - Open Access
Gold alloys -- Thermal properties
Gold alloys -- Metallurgy
Expansion (Heat) -- Measurement
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Woodard, Claude Lowell, "A parametric and microscopic study of the solid solubility of gold in aluminum" (1961). Masters Theses. 4172.