6 article(s) from Albe, Karsten
- Full Research Paper
- Published 24 Feb 2015
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Figure 1: Tensile stress–strain curves for a BMG in comparison to three NGs with grain sizes of 4 nm, 10 nm a...
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Figure 2: Local atomic shear strain for Cu64Zr36 BMG and NGs with grain sizes of 4 nm, 10 nm and 16 nm, respe...
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Figure 3: The ψ values for a BMG in comparison to three NGs with grain sizes of 4 nm, 10 nm and 16 nm, respec...
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Figure 4: Tensile stress–strain curves for Cu64Zr36 and Cu36Zr64 BMGs and as-prepared (NG1), annealed (NG2), ...
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Figure 5: Local atomic shear strain for (a) Cu36Zr64 and (b) Cu64Zr36 BMGs and as-prepared (NG1), annealed (N...
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Figure 6: The ψ values for Cu64Zr36 and Cu36Zr64 BMGs and as-prepared (NG1), annealed (NG2), annealed and pre...
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Figure 7: The fraction of Cu-centered full icosahedra and Voronoi volume in the Cu64Zr36 and Cu36Zr64 metalli...
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- Full Research Paper
- Published 24 Sep 2013
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Figure 1: BF-TEM images of the initial microstructure of ncPd 1 (a) and ncPd 2 (b) with the corresponding sel...
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Figure 2: Orientation maps overlaid with reliability derived from ACOM-TEM of the as deposited sample in a) c...
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Figure 3: Orientation analysis of the as prepared sputtered ncPd film. a) X-ray diffraction pattern of the as...
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Figure 4: Crystallites recognized by ACOM-TEM for the as deposited sample and samples deformed to 5% and 10% ...
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Figure 5: a) Crystallite and b) grain size as a function of strain based on ACOM-TEM (equivalent in-plane dia...
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Figure 6: a) Twin crystallites/area as a function of strain based on the ACOM-TEM analysis (ncPd 1: red, ncPd...
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Figure 7: Stress strain behavior and evolution of twin boundary density as a function of strain for grain siz...
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Figure 8: Model of the deformation pathways: If growth twins are initially present, partial dislocations nucl...
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- Full Research Paper
- Published 19 Sep 2013
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Figure 1: Local composition of the grain interior and the GBs as a function of the global composition for two...
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Figure 2: Atomic configurations after annealing with the hybrid MD/MC scheme. Ni atoms in the grain interior ...
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Figure 3: Stress-strain behavior and dislocation density for structures of 15 nm grain size, which were equil...
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Figure 4: Stress-strain behavior and dislocation density for structures of 15 nm grain size, which were equil...
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Figure 5: Stress-strain behavior and dislocation density for structures of 15 nm grain size, which were equil...
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Figure 6: Stress-strain behavior, dislocation density and evolution of GB volume for structures of 5 nm grain...
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Figure 7: Irreversible change in GB volume (VGB) as a function of the irreversible change in total sample vol...
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Figure 8: Correlation between yield stress (stress at plastic strain of 0.7%) and the change in free volume i...
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- Full Research Paper
- Published 07 Mar 2013
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Figure 1: Two observed modes of plasticity. (a) Snapshot of the extrusion from a 15.6 Å orifice showing the d...
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Figure 2: The maximum shear component of the atomic stress tensor expressed by the colouring of the atoms (co...
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Figure 3: Extrusion from a 15 Å orifice. Hydrostatic pressure, von Mises stress and the amount of extruded ma...
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Figure 4: Extrusion from 15 Å orifice. (a) The nucleation of the first Shockley partial. (b) Two nonlocking s...
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Figure 5: Dislocations interacting at the onset of plasticity. Colouring by the length of the Burgers vectors...
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Figure 6: A dislocation multijunction blocking the dislocation mobility and nucleation in the system. Disloca...
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Figure 7: Atomic arrangement during the breaking of the dendrite. (a–b) The locking multijunction (see Figure 6) is b...
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Figure 8: Dislocation interacting to break the dendrite. (a–b) The locking multijunction (see Figure 6) is broken as ...
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Figure 9: Hydrostatic pressure and von Mises stress at the onset of plasticity versus extrusion orifice radiu...
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Figure 10: Extrusion from a 11 Å orifice. Hydrostatic pressure, von Mises stress and the amount of extruded ma...
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Figure 11: Energy per atom with respect to the fcc phase at zero pressure for fcc and amorphous Cu. Energy of ...
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- Full Research Paper
- Published 02 Jan 2012
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Figure 1: The structure of the ordered phases with Strukturbericht designation “D022” (prototype structure: Al...
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Figure 2: The vertical lines in the plot represent equipotential lines of the free energy for constant differ...
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Figure 3: Calculated phase diagrams of Pt–Rh for three different particle sizes of 9201, 2075 and 807 atoms, ...
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Figure 4: Equilibrium configurations of large particles with 9201 atoms at different concentrations and tempe...
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Figure 5: Calculated phase diagram of bulk Pt–Rh (solid line) in comparison to that of a particle consisting ...
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Figure 6: All concentration-averaged Warren–Cowley short-range order parameters
![[Graphic 37]](/bjnano/content/inline/2190-4286-3-1-i43.png?max-width=637&scale=1.18182)
up to 8th neighbors for a Pt...
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Figure 7: Comparison of the
![[Graphic 28]](/bjnano/content/inline/2190-4286-3-1-i34.png?max-width=637&scale=1.18182)
(lower points) and ![[Graphic 29]](/bjnano/content/inline/2190-4286-3-1-i35.png?max-width=637&scale=1.18182)
(upper points) WC-order parameters versus temperature for di...
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Figure 8: Comparison of the concentration-averaged order parameters
(lower points) and (upper points). The ...
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Figure 9: Comparison of the WC-order parameters
![[Graphic 31]](/bjnano/content/inline/2190-4286-3-1-i37.png?max-width=637&scale=1.18182)
(lower points) and ![[Graphic 32]](/bjnano/content/inline/2190-4286-3-1-i38.png?max-width=637&scale=1.18182)
(upper points). The Pt concentration is ...
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Figure 10: Comparison of the order parameters
![[Graphic 33]](/bjnano/content/inline/2190-4286-3-1-i39.png?max-width=637&scale=1.18182)
(lower points) and ![[Graphic 34]](/bjnano/content/inline/2190-4286-3-1-i40.png?max-width=637&scale=1.18182)
(upper points) constrained to a core region...
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Figure 11: Comparison of the 8 WC-order parameters
![[Graphic 39]](/bjnano/content/inline/2190-4286-3-1-i45.png?max-width=637&scale=1.18182)
and ![[Graphic 38]](/bjnano/content/inline/2190-4286-3-1-i44.png?max-width=637&scale=1.18182)
of three different particle sizes and bulk material a...
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Figure 12: Comparison of the 8 averaged
WC-order parameters of three different particle sizes and bulk materi...
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- Full Research Paper
- Published 17 Jan 2011
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Figure 1: Comparison of simulated ordering kinetics in bulk FePt alloys with results from annealing experimen...
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Figure 2: Evolution of ordering fraction in a free FePt nanoparticle of D = 5 nm compared to the case of bulk...
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Figure 3: Structure of a free 5 nm particle after 30 s of annealing time at 1000 K. Top: Pt atoms are display...
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Figure 4: Snapshots of supported FePt nanoparticles illustrating the different interface energetics investiga...
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Figure 5: Bottom panel: Evolution of LRO parameter with annealing time at 1000 K in free and supported FePt n...
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Figure 6: Evolution of LRO parameter with annealing time at 1000 K in free and supported FePt nanoparticles w...
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