Results 71 to 80 of about 148,672 (304)

Friction and Wear Property of Copper Alloys for Plain Bearing

open access: yesTribology Online, 2015
Copper alloys have been used for plain bearing material in many kinds of engineering machines. In this study typical copper alloys are selected from the view point of strength and thermal conductivity that is proportional to electric conductivity.
Masahito Fujita   +3 more
doaj   +1 more source

Reliable irogane alloys and niiro patination—further study of production and application to jewelry [PDF]

open access: yes, 2010
Japanese metalworkers use a wide range of irogane alloys (shakudo, shibuichi), which are colored with a single patination solution (niiro eki). This approach allows different alloys to be combined in one piece and patinated, producing a multi-colored ...
Jones, Alan Hywel, O'Dubhghaill, Coilin
core  

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

3D periodic microscale structures on binary copper-nickel alloys via fs-DLIP: impact on E. coli-substrate interaction

open access: yesMaterials & Design
In response to the rise of multidrug-resistant infections, researchers are increasingly focusing on modifying material surfaces through chemical or topographical changes to limit microbial spread.
Aisha Saddiqa Ahmed   +6 more
doaj   +1 more source

Gold and Silver joining technologies in the Moche Tombs “Señor de Sipán” and “Señora de Cao jewelery [PDF]

open access: yes, 2018
About 200 gold and silver funerary ornaments from the Moche tombs “Señor de Sipán” and “Señora de Cao” were analyzed to determine their metallurgic characteristics. Of particular interest was the question about the gold-silver joining process.
Brunetti, Antonio   +7 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

Work Organisation and Innovation - Case Study: FAVI, France [PDF]

open access: yes, 2013
[Excerpt] FAVI is an SME based in Hallencourt in the Somme, a département in the Picardy region of France. It is a pressure die-casting company specialising in copper alloys that currently employs 406 people.
Gilbert, Patrick   +2 more
core   +1 more source

Horizontal transfer of antibiotic resistance genes on abiotic touch surfaces: implications for public health

open access: yes, 2012
Horizontal gene transfer (HGT) is largely responsible for increasing incidence of antibiotic-resistant infections worldwide. Whilst studies have focussed on HGT in vivo, this work investigates whether the ability of pathogens to persist in the ...
Bonnin   +38 more
core   +1 more source

Effect of disorder on the conductance of a Cu atomic point contact [PDF]

open access: yes, 2002
We present a systematic study of the effect of the disorder in copper point contacts. We show that peaks in the conductance histogram of copper point contacts shift upon addition of nickel impurities.
Bakker, D. J.   +3 more
core   +3 more sources

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

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