Characterization of atomic-level plasmonic structures by low-energy EELS

2008 ◽  
Vol 40 (13) ◽  
pp. 1764-1767 ◽  
Author(s):  
Tadaaki Nagao
Keyword(s):  
Atomic Level ◽  
Low Energy ◽  
Plasmonic Structures

scholarly journals Characterization of nitrogen species incorporated into graphite using low energy nitrogen ion sputtering

2016 ◽  
Vol 18 (1) ◽  
pp. 458-465 ◽  
Author(s):  
Hisao Kiuchi ◽  
Takahiro Kondo ◽  
Masataka Sakurai ◽  
Donghui Guo ◽  
Junji Nakamura ◽  
...  
Keyword(s):  
Low Energy ◽  
Nitrogen Species ◽  
Ion Sputtering ◽  
Zigzag Edge ◽  
Nitrogen Doped ◽  
Doping Mechanism ◽  
Nitrogen Ions ◽  
Nitrogen Ion

The well-controlled nitrogen doped graphite with graphitic nitrogen located in the zigzag edge and/or vacancy sites can be realized using the low energy nitrogen sputtering. The doping mechanism of nitrogen ions is also discussed.

scholarly journals Characterization of low-energy magnetic excitations in chromium

2004 ◽  
Vol 70 (14) ◽  
Author(s):  
H. Hiraka ◽  
P. Böni ◽  
K. Yamada ◽  
S. Park ◽  
S-. H. Lee ◽  
...  
Keyword(s):  
Low Energy ◽  
Magnetic Excitations

Temperature-Dependent Tribological Improvements in Low-Energy Nitrogen Ion Implanted Vanadium-Titanium Alloys

2005 ◽  
Author(s):  
C. Ballesteros ◽  
J. A. Garci´a ◽  
M. I. Orti´z ◽  
R. Rodri´guez ◽  
M. Varela
Keyword(s):  
Tribological Properties ◽  
Low Energy ◽  
Temperature Dependent ◽  
Structural Modifications ◽  
Nanocomposite Layer ◽  
Implantation Temperature ◽  
Transmission Electron ◽  
Nitrogen Ion ◽  
Tribological Characterization

A detailed tribological characterization of low-energy, nitrogen implanted V5 at. %Ti alloy is presented. Samples were nitrogen-implanted at an accelerating voltage of 1.2 kV and 1 mA/cm2, up to a dose of 1E19 ions/cm2. The tribological properties of the alloys: microhardness, friction coefficient and wear resistance, have improved after ion implantation and this improvement increases as the implantation temperature increases. The microstructure of the alloys were analysed by transmission electron microscopy. A direct correlation between structural modifications of the nitrogen implanted layer and the improvement in their tribological properties is obtained. For samples implanted at 848 K a nanocomposite layer where the reinforcement particles are TiN precipitates forms. TiN precipitation appears as the responsible of the improvement in the tribological properties.

Macro- to Atomic-Scale Tailoring of Si3N4 Ceramics to Enhance Properties

2005 ◽  
Vol 287 ◽  
pp. 233-241 ◽  
Author(s):  
Paul F. Becher ◽  
Gayle S. Painter ◽  
Naoya Shibata ◽  
Hua Tay Lin ◽  
Mattison K. Ferber
Keyword(s):  
Electronic Device ◽  
Atomic Level ◽  
Atomic Scale ◽  
Fracture Properties ◽  
Beta Particles ◽  
Preferential Segregation ◽  
Nitride Ceramics ◽  
Theoretical Predictions ◽  
The Matrix

Silicon nitride ceramics are finding uses in numerous engineering applications because of their tendency to form whisker-like microstructures that can overcome the inherent brittle nature of ceramics. Studies now establish the underlying microscopic and atomic-scale principles for engineering a tough, strong ceramic. The theoretical predictions are confirmed by macroscopic observations and atomic level characterization of preferential segregation at the interfaces between the grains and the continuous nanometer thick amorphous intergranular film (IGF). Two interrelated factors must be controlled for this to occur including the generation of the elongated reinforcing grains during sintering and debonding of the interfaces between the reinforcing grains and the matrix. The reinforcing grains can be controlled by (1) seeding with beta particles and (2) the chemistry of the additives, which also can influence the interfacial debonding conditions. In addition to modifying the morphology of the reinforcing grains, it now appears that the combination of preferential segregation and strong bonding of the additives (e.g., the rare earths, RE) to the prism planes can also result in sufficiently weakens the bond of the interface with the IGF to promote debonding. Thus atomic-scale engineering may allow us to gain further enhancements in fracture properties. This new knowledge will enable true atomic-level engineering to be joined with microscale tailoring to develop the advanced ceramics that will be required for more efficient engines, new electronic device architectures and composites.

Characterization of heat dynamics of an arctic low-energy house with floor heating

2014 ◽  
Vol 7 (6) ◽  
pp. 595-614 ◽  
Author(s):  
Philip Delff Andersen ◽  
María José Jiménez ◽  
Henrik Madsen ◽  
Carsten Rode
Keyword(s):  
Low Energy ◽  
Floor Heating

scholarly journals Characterization of a free air ionization chamber for low energy X-rays

2016 ◽  
Vol 733 ◽  
pp. 012090
Author(s):  
N F Silva ◽  
M Xavier ◽  
V Vivolo ◽  
L V E Caldas
Keyword(s):  
Ionization Chamber ◽  
Low Energy ◽  
X Rays ◽  
Free Air ◽  
Air Ionization

scholarly journals Low Energy STEM-EELS Characterization of Primitive Organic Matter and Silicates in the Meteorite LAP 02342

2018 ◽  
Vol 24 (S1) ◽  
pp. 2074-2075
Author(s):  
Bradley T. De Gregorio ◽  
Rhonda M. Stroud ◽  
Larry R. Nittler ◽  
Conel M. O’D. Alexander ◽  
Jemma Davidson ◽  
...  
Keyword(s):  
Organic Matter ◽  
Low Energy
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