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Showing 1 to 9 of 9 for “"gold alloys"”.
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Ternary diffusion in copper-silver-gold alloys.
Massachusetts Institute of Technology. Dept. of Metallurgy. Thesis. 1965. Ph.D.
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Study of an electronic localization-delocalization transition in germanium-gold alloys
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T20:19:11Z No. of bitstreams: 1 1980_dodson.pdf: 1858317 bytes, checksum: 40984d70099f9a9ddf9ea4ed4ffcc380 (MD5)
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A study of the anodic oxidation of acetylene on platinum-gold alloys
"The anodic oxidation of acetylene on Pt-Au alloys of four compositions (80-20, 60-40, 40-60, and 20-80 Pt-Au) was studied at 80°C in solutions of constant pH and unit normality. Currents were measured as a function of potential and partial pressure of acetylene. The effects of temperature on …
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The resistivity recovery of dilute alloys of silver, copper, and gold, proton irradiated at 80°K
… order. The recovery of the silver and copper alloys showed remarkable similarity to pure silver and copper, but the gold alloy's recovery was markedly altered as compared to pure gold. Activation energies for the stage III defect in silver, copper and gold were found to be ,64, .71 and ,70ev …
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Multienergetic External-beam PIXE as a Means of Stydying the Surface Enrichment Effect in Coins
… depletion in copper in copper-silver and copper-gold alloys, which is consistent with predictions of the theory of the surface enrichment effect. We suggest that the ancient coins are so deeply corroded that the PIXE beam is unable to penetrate adequately to observe surface enrichment. Comparison …
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Nucleation and Growth of Order in Cu3Au(111) Films
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-13T18:10:33Z No. of bitstreams: 1 1997_bonham.pdf: 3899515 bytes, checksum: d91115b4f72589c3314f3476e8450fdf (MD5)
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Quenching experiments on pure gold and dilute gold-tin and gold-silver alloys
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-04-13T19:35:00Z No. of bitstreams: 1 1964_bass.pdf: 5853528 bytes, checksum: dae034c665a5b352d55c96833abd9fad (MD5)
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Goldsmithing technologies, metallurgical traditions and funerary rituals in the Saka societies of the Eurasian Steppe during the Iron Age (c. 900 - 500 BCE)
This dissertation focuses on the goldsmithing technologies of the Early Iron Age (900–500 BCE) Saka population, who inhabited the territories of Central Asia, Kazakhstan, and Western and South Siberia from around 900 BCE. They were a semi-nomadic, horse-riding population that was part of the …
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Bayesian regional models of gold and copper alloys from pre-Hispanic Colombia
… highly sophisticated metallurgical technologies. Alloys of gold, silver, copper, and platinum were used in the creation of a wide range of artefacts intended for personal ornamentation, ceremonial use, funerary goods, functional tools, and votive offerings. While our understanding of the region’s …