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Search for "nanoglasses" in Full Text gives 5 result(s) in Beilstein Journal of Nanotechnology.

Au55, a stable glassy cluster: results of ab initio calculations

  • Dieter Vollath,
  • David Holec and
  • Franz Dieter Fischer

Beilstein J. Nanotechnol. 2017, 8, 2221–2229, doi:10.3762/bjnano.8.222

Graphical Abstract
  • release; only the heat capacity is altered. It may be speculated that this process is responsible for the high stability of “nanoglasses” according to Gleiter [29]. The above analysis leads to the conclusion that the most stable configuration is not liquid-like, amorphous, but instead it is glassy. The
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Published 25 Oct 2017

Influence of grain size and composition, topology and excess free volume on the deformation behavior of Cu–Zr nanoglasses

  • Daniel Şopu and
  • Karsten Albe

Beilstein J. Nanotechnol. 2015, 6, 537–545, doi:10.3762/bjnano.6.56

Graphical Abstract
  • properties of Cu–Zr nanoglasses (NGs) is investigated by molecular dynamics simulations using two model glasses of different alloy composition, namely Cu64Zr36 (Cu-rich) and Cu36Zr64 (Zr-rich). When the grain size is increased, or the fraction of interfaces in these NGs is decreased, we find a transition
  • interfaces don’t show topological disorder. Our results provide clear evidence that the mechanical properties of metallic NGs can be systematically tuned by controlling the size and the chemical composition of the glassy nanograins. Keywords: enhanced plasticity; metallic glasses; nanoglasses; shear bands
  • deformation behavior of nanoglasses has been shown both in computer simulation [11][13][14] and experiment [9][15], where also an enhanced plasticity under compression was observed indicating that not critical shear bands occur. Recent experiments on sputtered nanograined Au-based glasses also showed high
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Published 24 Feb 2015

On the structure of grain/interphase boundaries and interfaces

  • K. Anantha Padmanabhan and
  • Herbert Gleiter

Beilstein J. Nanotechnol. 2014, 5, 1603–1615, doi:10.3762/bjnano.5.172

Graphical Abstract
  • as a plane, this has been done by using elegant geometrical/crystallographic notions. The “ultra-stable” nanoglasses, produced by quenching from the vapor phase and the powders subsequently compacted, seem to be in a category of their own, whose quantitative description would require the conversion
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Review
Published 22 Sep 2014

Advances in nanomaterials

  • Herbert Gleiter,
  • Horst Hahn and
  • Thomas Schimmel

Beilstein J. Nanotechnol. 2013, 4, 805–806, doi:10.3762/bjnano.4.91

Graphical Abstract
  • ” values of certain properties) but to tune these properties. Tunable materials allow to change the properties of these materials reversibly and in a controlled manner after fabrication, e.g., by applying an electric field. Another remarkable development is the discovery of “nanoglasses”, based on the idea
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Editorial
Published 27 Nov 2013

Nanoglasses: a new kind of noncrystalline materials

  • Herbert Gleiter

Beilstein J. Nanotechnol. 2013, 4, 517–533, doi:10.3762/bjnano.4.61

Graphical Abstract
  • Nanoglasses are a new class of noncrystalline solids. They differ from today’s glasses due to their microstructure that resembles the microstructure of polycrystals. They consist of regions with a melt-quenched glassy structure connected by interfacial regions, the structure of which is characterized (in
  • comparison to the corresponding melt-quenched glass) by (1) a reduced (up to about 10%) density, (2) a reduced (up to about 20%) number of nearest-neighbor atoms and (3) a different electronic structure. Due to their new kind of atomic and electronic structure, the properties of nanoglasses may be modified
  • by (1) controlling the size of the glassy regions (i.e., the volume fraction of the interfacial regions) and/or (2) by varying their chemical composition. Nanoglasses exhibit new properties, e.g., a Fe90Sc10 nanoglass is (at 300 K) a strong ferromagnet whereas the corresponding melt-quenched glass is
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Published 13 Sep 2013
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