Results 81 to 90 of about 107,168 (304)

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  

Self-assembled nanoparticle spirals from two-dimensional compositional banding in thin films

open access: yes, 2016
A self-assembly process is reported in which spiral patterns of goldnanoparticles form on siliconsurfaces during the epitaxial crystallization of thin gold-silicon alloy layers.
Elliman, Robert G.   +3 more
core   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Silver-rich clusters in nanoporous gold

open access: yesMaterials Research Letters, 2017
High-resolution elemental mapping in a transmission electron microscope shows that the residual silver in dealloying-made nanoporous gold (NPG) is aggregated in nanoscale clusters.
Tobias Krekeler   +6 more
doaj   +1 more source

Reduction of Magnetic Noise in Atom Chips by Material Optimization

open access: yes, 2005
We discuss the contribution of the material type in metal wires to the electromagnetic fluctuations in magnetic microtraps close to the surface of an atom chip.
Bass   +28 more
core   +1 more source

Structure determination of Au on Pt(111) surface:LEED, STM and DFT Study [PDF]

open access: yes, 2015
Low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and density functional theory (DFT) calculations have been used to investigate the atomic and electronic structure of gold deposited (between 0.8 and 1.0 monolayer) on the Pt(111)
Jóźwik, Paweł   +4 more
core   +3 more sources

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan   +16 more
wiley   +1 more source

Gold casting alloys [PDF]

open access: yesGold Bulletin, 1983
Christoph J. Raub, Dieter Ott
openaire   +2 more sources

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

Wave function-dependent mobility and suppression of interface roughness scattering in a strained SiGe p-channel field-effect structure [PDF]

open access: yes, 2000
The 4 K Hall mobility has been measured in a top-gated, inverted, modulation-doped Si/Si0.8Ge0.2 structure having a Si:B doping layer beneath the alloy.
Horrell, A. I.   +5 more
core   +1 more source

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