Formation mechanism of [Si.sub.3][N.sub.4] nanowires via carbothermal reduction of carbonaceous silica xerogels
Article Abstract:
The formation mechanism of [Si.sub.3][N.sub.4] nanowires from the carbothermal reduction of carbonaceous silica xerogels with metal salt additives is investigated. The results have demonstrated that all the samples consisted of nanowires, while their crystalline phases changed with the heating time. The suggested mechanism has explained the existence of nanotubes in the [Si.sub.3][N.sub.4].
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Chemical bonding, electron-phonon coupling, and structural transformations in high-pressure phases of Si
Article Abstract:
A study of the physical origin of the superconductivity and its relation to the structure and dynamics of Si-V and Si-VI is illustrated. Upon compression, covalent sp elemental solids become increasingly metallic with the transfer of valence electrons into diffuse d orbitals and the electronic structure can be loosely described as localized electron pairs with itinerant electrons.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
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