Results 21 to 30 of about 992,893 (240)

A facile chemical screening method for the detection of stress corrosion cracking in 9 carat gold alloys [PDF]

open access: yes, 2009
Stress corrosion cracking (SCC) is a well known form of environmental attack in low carat gold jewellery. It is desirable to have a quick, easy and cost effective way to detect SCC in alloys and prevent them from being used and later failing in their ...
John Hensler   +7 more
core   +1 more source

Mechanical Spectroscopy Of Ordered Binary Au-Cu

open access: yesArchives of Metallurgy and Materials, 2015
We have studied a binary Au-Cu single crystal by mechanical spectroscopy. Upon very slow cooling from high temperatures, additional relaxation peaks arise at lower frequencies in isothermal spectra after the disappearing of the Zener peak below 665 K due
Tkalcec I., Mari D., Schaller R.
doaj   +1 more source

Evaluation and comparison of castability between an indigenous and imported Ni-Cr alloy

open access: yesIndian Journal of Dental Research, 2011
Context: Since 1907 casting restorations have been in use in dentistry. Numerous companies have been manufacturing and marketing base metal alloys. Gold was a major component of casting alloys.
Ganesh Ramesh   +3 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

MINERAL INCLUSIONS IN PLATINUM GRAINS FROM THE KAZAN PLACER (SOUTH URALS) [PDF]

open access: yesМинералогия, 2020
Platinum grains from the Kazan placer in the South Urals contain inclusions of native metals (gold, osmium group alloys), as well as PGE chalcogenides: sulfides (laurite, erlichmanite, bauite), sulfoarsenides (irarsite and hollingworthite ...
E.V. Zaykova   +2 more
doaj   +1 more source

Gold and gold alloy foams

open access: yes, 2022
S.251-256The 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
Banhart, J.
core   +1 more source

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

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

Versatile vector tools for efficient protein screening across multiple expression systems

open access: yesFEBS Open Bio, EarlyView.
A unified vector toolkit enables rapid protein expression screening across E. coli, insect, and mammalian cells. A single primer pair amplifies the target gene, which is inserted into any vector via a standardized interface. This streamlined workflow eliminates repeated cloning steps, accelerating the identification of optimal expression conditions for
Zhimin Zhu   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy