The effect of high energy concentration source irradiation on structure and properties of Fe-based bulk metallic glass

2016 ◽  
Vol 374 ◽  
pp. 359-364 ◽  
Author(s):  
Wirginia Pilarczyk
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
High Energy ◽  
Energy Concentration ◽  
Structure And Properties ◽  
High Energy Concentration

Effect of Au additions on the structure and properties of (Fe0.5Co0.5)71Nb4Si5B20 bulk metallic glass

2019 ◽  
Vol 35 (4) ◽  
pp. 376-382
Author(s):  
Syed Zameer Abbas ◽  
Rashid Ali ◽  
Fazal Ahmad Khalid ◽  
Kamran Amir Khan ◽  
Muhammad Abdul Rehman
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Structure And Properties

scholarly journals Review on Recent Developments in Laser Driven Inertial Fusion

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
M. Ghoranneviss ◽  
A. Salar Elahi
Keyword(s):  
Fusion Energy ◽  
Laser Pulses ◽  
High Energy ◽  
Energy Concentration ◽  
Inertial Fusion ◽  
Short Pulses ◽  
Confinement Fusion ◽  
Recent Developments ◽  
Very High Energy ◽  
High Energy Concentration

Discovery of the laser in 1960 hopes were based on using its very high energy concentration within very short pulses of time and very small volumes for energy generation from nuclear fusion as “Inertial Fusion Energy” (IFE), parallel to the efforts to produce energy from “Magnetic Confinement Fusion” (MCF), by burning deuterium-tritium (DT) in high temperature plasmas to helium. Over the years the fusion gain was increased by a number of magnitudes and has reached nearly break-even after numerous difficulties in physics and technology had been solved. After briefly summarizing laser driven IFE, we report how the recently developed lasers with pulses of petawatt power and picosecond duration may open new alternatives for IFE with the goal to possibly ignite solid or low compressed DT fuel thereby creating a simplified reactor scheme. Ultrahigh acceleration of plasma blocks after irradiation of picosecond (PS) laser pulses of around terawatt (TW) power in the range of 1020 cm/s2was discovered by Sauerbrey (1996) as measured by Doppler effect where the laser intensity was up to about 1018 W/cm2. This is several orders of magnitude higher than acceleration by irradiation based on thermal interaction of lasers has produced.

Synchrotron X-ray Diffraction Measurement of Reinforcement Strains in Uniaxially Stressed Bulk Metallic Glass Composites

2001 ◽  
Vol 678 ◽  
Author(s):  
Dorian K. Balch ◽  
Ersan Üstündag ◽  
David C. Dunand
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Load Transfer ◽  
High Energy ◽  
Uniaxial Tensile ◽  
Diffraction Measurement ◽  
X Rays ◽  
Glass Composites ◽  
Bulk Metallic Glass Composites ◽  
The Matrix

AbstractHigh-energy synchrotron x-rays were used to measure internal reinforcement strains in bulk metallic glass composites containing tungsten or tantalum particles during in-situ uniaxial tensile loading. Load transfer from the matrix to the stiffer but weaker particles was characterized in both their elastic and plastic regimes and compared to theoretical predictions.

In situ high-energy x-ray diffraction observation of structural evolution in a Ti-based bulk metallic glass upon heating

2010 ◽  
Vol 25 (12) ◽  
pp. 2271-2277 ◽  
Author(s):  
N. Zheng ◽  
G. Wang ◽  
L.C. Zhang ◽  
M. Calin ◽  
M. Stoica ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Free Volume ◽  
Structural Relaxation ◽  
Structural Evolution ◽  
High Energy ◽  
Rapid Quenching ◽  
X Ray Diffraction ◽  
X Ray

The structural evolution of the Ti40Zr10Cu34Pd14Sn2 bulk metallic glass (BMG) upon was investigated by means of in situ high-energy x-ray diffraction. The position, width, and intensity of the first peak in diffraction patterns are fitted through Voigt function below 800 K. All the peak position, width, and intensity values show a nearly linear increase with the increasing temperature to the onset temperature of structural relaxation, Tr = 510 K. However, these values start to deviate from the linear behavior between Tr and Tg (the glass transition temperature). The changes in free volume and the coefficient of volume thermal expansion prove that the aforementioned phenomenon is closely related to the structural relaxation releasing excess free volume arrested during rapid quenching of the BMG. Above 800 K, three crystallization events are detected and the first exothermic event is due to the formation of metastable nanocrystals.

High energy concentration by symmetric shock focusing

Shock Waves ◽  
2013 ◽  
Vol 23 (4) ◽  
pp. 361-368 ◽  
Author(s):  
N. Apazidis ◽  
M. Kjellander ◽  
N. Tillmark
Keyword(s):  
High Energy ◽  
Energy Concentration ◽  
Shock Focusing ◽  
High Energy Concentration
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