Results 31 to 40 of about 11,015 (162)
Study of the influence of cobalt in the high formability of the Au-Fe system
Revista Facultad de Ingeniería Universidad de Antioquia, 2018 Since ancient times, gold has been used due to its especial properties. Among those properties are the resistance to corrosion (for being noble), its high electrical and thermal conductivity, and also its conspicuous coloration.
Sandra Milena Restrepo-Arcila +3 more
doaj
Complications of implantation of aesthetic foreign bodies depending on their chemical composition
Journal of Education, Health and Sport, 2020 The study was aimed to assess the frequency of implantation of aesthetic foreign bodies depending on their chemical compositionThere was demonstrated that 49.4% of patients with complications after auricular piercing have jewelry made of gold and silver,
O. V. Bondarenko
doaj +1 more source
Gold geochemistry and mineralogy of till fines: a new approach for data integration [PDF]
Bulletin of the Geological Society of Finland, 2000 A new method of heavy mineral (HM) separation and assessment of gold grade was compared with the results of conventional AAS analysis. Sixteen gold micronuggets and a number of particles of native metal and metal alloys (brass, tin, bismuth, lead) were ...
V. Knauf +3 more
doaj +1 more source
Electropolishing of gold and gold alloys in HCl-glycerol-ethanol electrolytes
Applied Surface Science AdvancesElectropolishing or electrochemical polishing (EP) is an ultrafinishing process that improves esthetic, technical and functional properties of metallic surfaces by reducing their roughness.
Julymar Rodriguez +2 more
doaj +1 more source
Journal of Saudi Chemical Society, 2015 A novel method is proposed for the extraction of microgram level concentration of gold(III) from hydrochloric acid medium with 4-(4-methoxybenzylideneimino)-5-methyl-4H-1,2,4-triazole-3-thiol (MBIMTT) dissolved in chloroform as an extractant.
Kaluram N. Vidhate +3 more
doaj +1 more source
Investigation of the dealloying front in partially corroded alloys
Materials Research Letters, 2022 Nanoporous gold as obtained by corrosion of alloys of gold and a less noble metal is a system with manifold applications. The process of dealloying, however, can result in partially porous samples, when dealloying conditions are not optimized with ...
Christoph Mahr +4 more
doaj +1 more source
Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt System
Metals, 2017 A single-phase solid solution is observed in quaternary and quinary alloys obtained from gold, copper, nickel, palladium and platinum. The lattice parameters of the alloys follow the linear rule of mixture when considering the lattice parameters of the ...
Jens Freudenberger +7 more
doaj +1 more source
Application of Gold in Biomedicine: Past, Present and Future
International Journal of Gerontology, 2012 Gold has been used in medicine for thousands of years. Nowadays, gold compounds contribute to the treatment of rheumatoid arthritis; gold alloys are used in implants in various fields of medicine; and colloid gold is used in immunogold electron ...
Hsueh-Hsiao Wang +8 more
doaj +1 more source
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 The plasmon resonance of metallic Au/Ag alloys in the colloidal state was tuned from 400 nm to 500 nm using a laser irradiated technique, performed directly in the liquid state.
F. Neri +10 more
doaj +1 more source
Platinum Metals Review, 1962 In the second part of this article, concluded from the April issue of ‘ Platinum Metals Review’, the author deals with the mechanical and physical properties of the gold-platinum alloys, their melting and working technology, resistance to oxidation and corrosion, and finally with their applications in industry.
openaire +1 more source