منابع مشابه
Characterization of 14 Karat Gold Alloys
This paper is a continuation of the project we presented at the 2010 Santa Fe Symposium® in which we defined a characterization system and analysis of data on 18K gold alloys. The research carried out since then has enabled us to connect the physical-mechanical characteristics of each alloy with its chemical composition, thereby identifying the best solution possible to produce a specific item....
متن کاملGold grain implantation gun: Royal Marsden Hospital.
468 Hong Kong Med J ⎥ Volume 20 Number 5 ⎥ October 2014 ⎥ www.hkmj.org Non-surgical cancer treatments have undergone a major shift since Röntgen discovered X-rays in 1895 and radiation was first used for cancer treatment in 1899. A more targeted regimen using external beam therapy and brachytherapy became the gold standard, and the advent of chemotherapy made further significant improvements in...
متن کاملTarnish Resistance, Corrosion and Stress Corrosion Cracking of Gold Alloys
Tarnishing, corrosion and stress corrosion cracking (SeC) of gold alloys are related phenomena. They present problems when they occur in gold jewellery, dental gold alloys and electronic devices. They are exploited, however, in the depletion gilding and finishing of gold jewellery; and in the extraction, refining and fire assaying of gold. There is still much that is not known about these pheno...
متن کاملIncorporating gold into nanocrystalline silver dressings reduces grain boundary size and maintains suitable antimicrobial properties.
Nanocrystalline silver dressings are widely known to be potent antimicrobial and anti-inflammatory agents and have long been used to treat topical wounds. Gold is known to be a strong anti-inflammatory agent and has been used in the treatment of rheumatoid arthritis for >70 years. The purpose of this work was to study the effect of incorporating gold into nanocrystalline silver dressings from a...
متن کاملSize-Controlled Synthesis of Gold Nanostars and Their Characterizations and Plasmon Resonances
Gold nanostar particles were synthesized using seed-mediated method. Au-seed was synthesized with the diameter of approximately 3 nm and a considerably low STDEV of less than 1 nm. Then, different amount of Au seed was introduced into the growth solution of nanostars and the influence of the changes in concentration of Au seed on the growth process was investigated. The size of gold nanostars i...
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ژورنال
عنوان ژورنال: Gold Bulletin
سال: 1981
ISSN: 0017-1557,2190-7579
DOI: 10.1007/bf03214600