Results 21 to 30 of about 11,015 (162)

The use of gold and gold alloys in prosthetic dentistry – a literature review

open access: yesCurrent Issues in Pharmacy and Medical Sciences, 2015
Gold is a noble metal with very good chemical resistance. It also does not become oxidized in water or air. Pure gold has a bright yellow color and shine, and it is a heavy, but soft metal with huge plasticity and ductility.
Oleszek-Listopad Justyna   +5 more
doaj   +1 more source

Gold parting with nitric acid in gold-silver alloys

open access: yesSubstantia, 2019
This article is an overview of gold parting with nitric acid on a both industrial and laboratory scale, supported by more recently reported experimental and theoretical studies on the gold dealloying process for the fabrication of nanoporous gold ...
Iacopo Ciabatti
doaj   +1 more source

Pd-Shaped Nanoparticles Modified by Gold ad-Atoms: Effects on Surface Structure and Activity Toward Glucose Electrooxidation

open access: yesFrontiers in Chemistry, 2019
Palladium nanoparticles (Pd-NPs) with controlled distributions of sizes and shapes (nanospheres–Pd-NS-, nanocubes -Pd-NC-, and nanooctahedrons -Pd-NO-) are synthesized by wet chemistry methods and characterized by TEM/HRTEM.
Thibault Rafaïdeen   +2 more
doaj   +1 more source

Comportement anodique d’alliages or-cuivre en solution aqueuse de NaCl

open access: yesCHIMIA, 1973
The anodical behaviors of 50% Cu-Au alloys, having an ordered or disordered structure, were studied in aqueous solutions of chloride by means of different electrochemical methods.
P. Tissot, H. Lüthy, R. Monnier
doaj   +1 more source

Scanning electron microscopy of Au585Ag90Cu264Zn61 gold alloy for jewel production

open access: yesZaštita Materijala, 2015
Gold alloys '585' that are used for production of jewelry can be three-, four-, five- and more component alloys. All these alloys are with Au-Ag-Cu base, with constant amount of gold, according to applicable legislation, of 58.5 mass.% Au, while the ...
Radiša Perić   +3 more
doaj   +1 more source

PRINCIPAL COMPONENT ANALYSIS AND THERMOMECHANICAL PREFERENCE OF WHITE Au ALLOYS WITHOUT Ag

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2020
Addition of different amounts of Cu and Ag to Au alloys, as well as some new elements (Zn and Cd), gives alloys of the different colour spectrum (from red to yellow) and different technological and metallurgical characteristics.
Mladen MIRIĆ   +5 more
doaj   +1 more source

Effects of alloy composition in traditional Japanese shakudo patination.

open access: yesPLoS ONE, 2023
Japanese craftspeople have dominated the art of patinating copper-alloys since the 15th century, using precise alloy compositions and complicated patination processes in different hot solutions to create a variety of colours on swords fittings such as ...
Agnese Benzonelli   +2 more
doaj   +1 more source

Perimbangan Gypsum Bonded Investment terhadap Penysutan Logam Paduan Emas pada Saat Pengecoran

open access: yesJournal of Dentistry Indonesia, 2015
Gypsum bonded investment is usually used for dental gold alloys casting procedure. Casting alloys shrink during solidified from melting temperature to room temperature.
Ronnie Rusli
doaj   +1 more source

X-ray diffraction analysis of cold rolled strip from jewelry 585 gold alloy [PDF]

open access: yesTehnika, 2017
Here is investigated an golden alloy 585 as one of widely used gold alloy in jewelry production. Insufficient data, even in nowadays, exist about the production schedule of gold alloys, including melting, rolling and heat treatment regimes.
Karastojković Zoran   +3 more
doaj   +1 more source

Gold-aluminium alloys [PDF]

open access: yesProceedings of the Royal Society of London, 1900
The first part of this paper gives the equilibrium curve for the liquid alloys and the various solid bodies that can form in them. The curve is based on the determination of the freezing points of mixtures varying in composition from pure gold to pure aluminium.
openaire   +1 more source

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