Journal ArticleDOI
In situ diffraction measurements of lattice response due to shock loading, including direct observation of the α–ε phase transition in iron
Daniel H. Kalantar,Gilbert Collins,J. D. Colvin,Jon Eggert,James Hawreliak,Hector Lorenzana,Marc A. Meyers,Roger Minich,K. Rosolankova,M. S. Schneider,James S. Stolken,Justin Wark +11 more
TLDR
In situ diffraction is a technique to probe directly the lattice response of materials during the shock loading process as mentioned in this paper, which is used to record diffraction patterns from multiple lattice planes simultaneously.About:
This article is published in International Journal of Impact Engineering.The article was published on 2006-12-01. It has received 12 citations till now. The article focuses on the topics: Electron backscatter diffraction & Diffraction.read more
Citations
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Journal ArticleDOI
Structural metals at extremes
Amit Misra,Ludovic Thilly +1 more
TL;DR: In this paper, a top-down or bottom-up process is used to create nanostructured metals and composites that contain atomically designed interfaces that not only block dislocation slip but also attract, absorb, and annihilate point and line defects.
Journal ArticleDOI
Deformation and failure in extreme regimes by high-energy pulsed lasers: A review
TL;DR: The use of high-power pulsed lasers to probe the response of materials at pressures of hundreds of GPa up to several TPa, time durations of nanoseconds, and strain rates of 10 6 −10 1 ° ǫ s −1 is revealing novel mechanisms of plastic deformation, phase transformations, and even amorphization as discussed by the authors.
Journal ArticleDOI
Plastic deformation of a porous bcc metal containing nanometer sized voids
Carlos J. Ruestes,Carlos J. Ruestes,Eduardo M. Bringa,Alexander Stukowski,J.D. Rodriguez Nieva,Yizhe Tang,Marc A. Meyers +6 more
TL;DR: Ruestes, Carlos Javier as mentioned in this paper, and Javier, Federico as mentioned in this paper presented a study on the impact of nuclear power on the area of Energia Nuclear in Argentina.
Journal ArticleDOI
Atomistic simulation of the mechanical response of a nanoporous body-centered cubic metal
Carlos J. Ruestes,Eduardo M. Bringa,Alexander Stukowski,J.F. Rodríguez Nieva,G. Bertolino,Yizhe Tang,Marc A. Meyers +6 more
TL;DR: In this paper, a Ta monocrystal containing randomly placed nanovoids was studied using molecular dynamics simulations, and it was shown that dislocations resulting from loading are emitted from void surfaces as shear loops, with their interactions leading to hardening.
Journal ArticleDOI
Response of Ni/Al laminates to laser-driven compression
TL;DR: In this article, Ni/Al microlaminates with bilayer thicknesses in the micrometer (5 lm) and nanometer (50 nm) range were subjected to exothermic reactions induced by laser-driven compression.
References
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Journal ArticleDOI
Laser interferometer for measuring high velocities of any reflecting surface
Lynn M. Barker,R. E. Hollenbach +1 more
TL;DR: In this article, a laser velocity interferometer instrumentation system was developed which can measure the velocity history of either spectrally or diffusely reflecting surfaces, and achieved accuracies of 2% or better for peak surface velocities of 0.2 mm/μsec.
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Polymorphism of Iron at High Pressure
TL;DR: In this article, it was shown that compressive waves generated by high explosive in Armco iron may, under certain conditions, occur with three stable shocks, which are characterized by abrupt and possibly quasi-discontinuous change of pressure.
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Direct Observation of the alpha-epsilon Transition in Shock-compressed Iron via Nanosecond X-ray Diffraction
Daniel H. Kalantar,James Belak,Gilbert Collins,J. D. Colvin,H. M. Davies,Jon Eggert,Timothy C. Germann,James Hawreliak,Brad Lee Holian,Kai Kadau,Peter S. Lomdahl,Hector Lorenzana,Marc A. Meyers,K. Rosolankova,Matt S. Schneider,J. Sheppard,James S. Stolken,Justin Wark +17 more
TL;DR: In situ x-ray diffraction studies of iron under shock conditions confirm unambiguously a phase change from the bcc (alpha) to hcp (epsilon) structure, and are in good agreement with large-scale nonequilibrium molecular dynamics simulations.
Journal ArticleDOI
X‐Ray Diffraction Studies in the 100 Kilobar Pressure Range
John C. Jamieson,A. W. Lawson +1 more
TL;DR: A new technique usingamorphous boron as a pressure vessel yields satisfactory Debye-Scherrer patterns for substances subjected to quasi-hydrostatic pressures ranging up to at least 150 kbar as discussed by the authors.