A Low-Temperature Amorphous Phase in a Fragile Glass-Forming Substance Export

@article{citeulike:2735695, abstract = {We have observed what appears to be a first-order phase change from deeply supercooled liquid triphenyl phosphite at 1 atm to a rigid, apparently amorphous phase which we denote as the glacial phase. This is a new, crisper, and rather different addition to the examples of polyamorphism that have recently been studied. In order to deeply supercool the liquid, it must be quick-quenched to a low temperature: if heated slowly, but immediately, it crystallizes; if allowed to stand for several hours at low temperature, it transforms to the glacial phase; and if subsequently heated it, too, crystallizes, but at a higher temperature than that for liquid crystallization. The glacial phase can be clearly distinguished from both the normal crystal and the ordinary glass. We propose a model for the formation of this apparently amorphous glacial phase.}, address = {Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095}, author = {Cohen, Itai and Ha, Alice and Zhao, Xiaolin and Lee, Michelle and Fischer, Thomas and Strouse, M. Jane and Kivelson, Daniel}, citeulike-article-id = {2735695}, citeulike-linkout-0 = {http://dx.doi.org/10.1021/jp953785h}, citeulike-linkout-1 = {http://pubs.acs.org/doi/abs/10.1021/jp953785h}, day = {1}, doi = {10.1021/jp953785h}, journal = {The Journal of Physical Chemistry}, keywords = {glass, journal-club, molecular}, month = {January}, number = {20}, pages = {8518--8526}, posted-at = {2009-11-05 02:37:48}, priority = {5}, title = {A Low-Temperature Amorphous Phase in a Fragile Glass-Forming Substance}, url = {http://dx.doi.org/10.1021/jp953785h}, volume = {100}, year = {1996} }

TY - JOUR ID - citeulike:2735695 L3 - citeulike-article-id:2735695 N2 - We have observed what appears to be a first-order phase change from deeply supercooled liquid triphenyl phosphite at 1 atm to a rigid, apparently amorphous phase which we denote as the glacial phase. This is a new, crisper, and rather different addition to the examples of polyamorphism that have recently been studied. In order to deeply supercool the liquid, it must be quick-quenched to a low temperature: if heated slowly, but immediately, it crystallizes; if allowed to stand for several hours at low temperature, it transforms to the glacial phase; and if subsequently heated it, too, crystallizes, but at a higher temperature than that for liquid crystallization. The glacial phase can be clearly distinguished from both the normal crystal and the ordinary glass. We propose a model for the formation of this apparently amorphous glacial phase. IS - 20 JF - The Journal of Physical Chemistry AD - Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095 EP - 8526 TI - A Low-Temperature Amorphous Phase in a Fragile Glass-Forming Substance VL - 100 SP - 8518 KW - glass KW - journal-club KW - molecular AU - Cohen, Itai AU - Ha, Alice AU - Zhao, Xiaolin AU - Lee, Michelle AU - Fischer, Thomas AU - Strouse, Jane AU - Kivelson, Daniel PY - 1996/01/01/ UR - http://dx.doi.org/10.1021/jp953785h ER -