Results 1 to 10 of about 107,168 (304)

Mapping Spatial Distribution of Pores in an Additively Manufactured Gold Alloy Using Neutron Microtomography

open access: yesApplied Sciences, 2021
A crucial criterion for the quality of the additively manufactured parts is the porosity content for achieving an acceptable final relative density.
Hossein Ghasemi-Tabasi   +6 more
doaj   +1 more source

Comparing Castability of Nickel-Chromium, Cobalt-Chromium, and Non-Precious Gold Color Alloys, Using two Different Casting Techniques

open access: yesJournal of Dentistry, 2022
Statement of the Problem: The castability of nonprecious gold color alloy using torch/ centrifugal and induction/vacuum-pressure casting techniques has not been studied yet. Purpose: This study was conducted to compare the castability of nickel chromium,
Elham Ansarifard   +4 more
doaj   +1 more source

Influence of a candy on the corrosion resistance of orthodontic wire made of Gold 18K in the presence of artificial saliva

open access: yesZaštita Materijala, 2023
Corrosion resistance of an orthodontic wire made of Gold 18K alloy immersed in artificial saliva in the absence and presence of 500 ppm of Éclairschocolate candy has been investigated by potentiodynamic polarization study and electrochemical impedance ...
Dennis Antony Wilfred   +5 more
doaj   +1 more source

The Cyclic Fatigue Resistance of Different Lengths of CM Gold Wire and CM Blue Wire NiTi Alloy Endodontic Rotary Files: An In Vitro Study

open access: yesApplied Sciences, 2023
Background: The objective of the present study was to measure and compare how the length of CM Gold Wire and CM Blue Wire NiTi alloy endodontic rotary files impacts their resistance to cyclic fatigue.
Vicente Faus-Matoses   +7 more
doaj   +1 more source

Influence of urea and glucose on corrosion resistance of Gold 21K alloy in the presence of artificial sweat

open access: yesZaštita Materijala, 2022
Corrosion resistance of Gold 21K alloy immersed in artificial sweat in the absence and presence of 100 ppm of urea and also 100 ppm of D-Glucose has been investigated by polarization study and AC impedance spectra.
Babu Mahalakshmi   +3 more
doaj   +1 more source

Development of a New AuCuZnGe Alloy and Determination of Its Corrosion Properties

open access: yesMetals, 2022
In this paper, we present the idea and development of a new gold-copper-zinc-germanium (AuCuZnGe) alloy, which is related to the method of production and research of its key properties, so that the new Au alloy could be used for jewelry production and in
Rebeka Rudolf   +3 more
doaj   +1 more source

Coloured gold alloys [PDF]

open access: yesGold Bulletin, 1999
From ancient times, gold has been used mostly in decorative items, and the colour of gold plays an important role in this application field. Different methods have been developed to objectively characterize the colour. This paper describes the CIELAB system, which has gained acceptance as an effective way to assess colour.
Cretu, Cristian, van der Lingen, Elma
openaire   +1 more source

Grain Boundary Relaxation in Bi-Crystals: Mechanical Spectroscopy and Molecular Dynamics Simulations

open access: yesArchives of Metallurgy and Materials, 2015
Different Au-Ag-Cu samples have been studied by mechanical spectroscopy. Both polycrystals and bi-crystals show a relaxation peak at 800 K, accompanied by an elastic modulus change.
Maier A.-K.   +3 more
doaj   +1 more source

Studies and Considerations on Forty-Three Gold and Silver Nose Ornaments from the Moche Tomb of the Lady of Cao

open access: yesHeritage, 2023
The authors studied forty-three beautiful nose ornaments from the Moche tomb of the Lady of Cao, located in the north of Peru, which has been dated to be around 300–400 d.C.
Giovanni E. Gigante   +6 more
doaj   +1 more source

Gold and Gold Alloy foams [PDF]

open access: yesGold Bulletin, 2008
The possibilities to manufacture gold-based foams are explored. Gold powder and various powdered alloying elements are mixed with a small volume fraction of a gas-releasing blowing agent. The blend is compacted to a dense precursor, which is then melted in a further step in order to trigger foam formation.
openaire   +2 more sources

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