Abstract
The comment by Popov raises two questions related to (a) whether the glassy state can more appropriately be described as metastable or unstable and (b) whether the supercooled liquid state exists below the glass transition temperature, Tg. We argue that the glassy state is thermodynamically unstable, as it continuously and spontaneously relaxes toward the metastable supercooled liquid state at any nonzero temperature. Moreover, the supercooled liquid state—the target for the glass relaxation process—exists at any temperature below the liquidus temperature of a system. There is no problem with having a missing target for the glass relaxation process, since this metastable supercooled liquid state can always be defined.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 251-252 |
| Number of pages | 2 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 502 |
| DOIs |
|
| State | Published - Dec 15 2018 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry
Cite this
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Response to comment on “The glassy state of matter : Its definition and ultimate fate”. / Zanotto, Edgar D.; Mauro, John.
In: Journal of Non-Crystalline Solids, Vol. 502, 15.12.2018, p. 251-252.Research output: Contribution to journal › Comment/debate
TY - JOUR
T1 - Response to comment on “The glassy state of matter
T2 - Its definition and ultimate fate”
AU - Zanotto, Edgar D.
AU - Mauro, John
PY - 2018/12/15
Y1 - 2018/12/15
N2 - The comment by Popov raises two questions related to (a) whether the glassy state can more appropriately be described as metastable or unstable and (b) whether the supercooled liquid state exists below the glass transition temperature, Tg. We argue that the glassy state is thermodynamically unstable, as it continuously and spontaneously relaxes toward the metastable supercooled liquid state at any nonzero temperature. Moreover, the supercooled liquid state—the target for the glass relaxation process—exists at any temperature below the liquidus temperature of a system. There is no problem with having a missing target for the glass relaxation process, since this metastable supercooled liquid state can always be defined.
AB - The comment by Popov raises two questions related to (a) whether the glassy state can more appropriately be described as metastable or unstable and (b) whether the supercooled liquid state exists below the glass transition temperature, Tg. We argue that the glassy state is thermodynamically unstable, as it continuously and spontaneously relaxes toward the metastable supercooled liquid state at any nonzero temperature. Moreover, the supercooled liquid state—the target for the glass relaxation process—exists at any temperature below the liquidus temperature of a system. There is no problem with having a missing target for the glass relaxation process, since this metastable supercooled liquid state can always be defined.
UR - http://www.scopus.com/inward/record.url?scp=85055653370&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85055653370&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2018.01.040
DO - 10.1016/j.jnoncrysol.2018.01.040
M3 - Comment/debate
VL - 502
SP - 251
EP - 252
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
ER -