ON THE THERMODYNAMIC RELATIONSHIP BETWEEN NANOCRYSTALLINE MATERIALS AND GLASSES. WOLF, D., WANG, J., PHILLPOT, S., & GLEITER, H. Physics Letters A, 205(4):274--280, September, 1995. WOS:A1995RV82400005doi abstract bibtex Atomistic computer simulations are used to expose important parallels that exist in the dynamical properties of nanocrystalline materials and glasses. Both types of heavily disordered, metastable microstructures exhibit low- and high-frequency lattice-vibrational modes not seen in the perfect crystal, giving rise to similar thermodynamic properties at low temperatures, most notably a pronounced anomaly in their specific heats and a phase transition from the nanocrystalline state to the glass below a critical grain size. The possibility of a reversible, free-energy based transition between the two phases indicates that the two share a common configuration phase space below a certain critical grain size (of the order of 1.4 nm for the system studied in this paper). This result implies the existence of interesting kinetically-induced structural phenomena.
@article{ wolf_thermodynamic_1995,
title = {{ON} {THE} {THERMODYNAMIC} {RELATIONSHIP} {BETWEEN} {NANOCRYSTALLINE} {MATERIALS} {AND} {GLASSES}},
volume = {205},
issn = {0375-9601},
doi = {10.1016/0375-9601(95)00545-E},
abstract = {Atomistic computer simulations are used to expose important parallels that exist in the dynamical properties of nanocrystalline materials and glasses. Both types of heavily disordered, metastable microstructures exhibit low- and high-frequency lattice-vibrational modes not seen in the perfect crystal, giving rise to similar thermodynamic properties at low temperatures, most notably a pronounced anomaly in their specific heats and a phase transition from the nanocrystalline state to the glass below a critical grain size. The possibility of a reversible, free-energy based transition between the two phases indicates that the two share a common configuration phase space below a certain critical grain size (of the order of 1.4 nm for the system studied in this paper). This result implies the existence of interesting kinetically-induced structural phenomena.},
number = {4},
journal = {Physics Letters A},
author = {WOLF, D. and WANG, J. and PHILLPOT, SR and GLEITER, H.},
month = {September},
year = {1995},
note = {{WOS}:A1995RV82400005},
pages = {274--280}
}
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