Mechanical properties of glass forming systems Export

@article{citeulike:5002077, abstract = {We address the interesting temperature range of a glass forming system where the mechanical properties are intermediate between those of a liquid and a solid. We employ an efficient Monte Carlo method to calculate the elastic moduli, and show that in this range of temperatures the moduli are finite for short times and vanish for long times, where short and long depend on the temperature. By invoking some exact results from statistical mechanics we offer an alternative method to compute shear moduli using molecular dynamics simulations, and compare those to the Monte Carlo method. The final conclusion is that these systems are not \“viscous fluids\” in the usual sense, as their actual time-dependence concatenates solidlike materials with varying local shear moduli.}, author = {Ilyin, Valery and Makedonska, Nataliya and Procaccia, Itamar and Schupper, Nurith}, citeulike-article-id = {5002077}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000076000005052401000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRE/v76/e052401}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevE.76.052401}, doi = {10.1103/PhysRevE.76.052401}, journal = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}, keywords = {glass\_transition}, number = {5}, pages = {052401+}, posted-at = {2009-06-28 19:47:08}, priority = {2}, publisher = {APS}, title = {Mechanical properties of glass forming systems}, url = {http://dx.doi.org/10.1103/PhysRevE.76.052401}, volume = {76}, year = {2007} }

TY - JOUR ID - citeulike:5002077 L3 - citeulike-article-id:5002077 N2 - We address the interesting temperature range of a glass forming system where the mechanical properties are intermediate between those of a liquid and a solid. We employ an efficient Monte Carlo method to calculate the elastic moduli, and show that in this range of temperatures the moduli are finite for short times and vanish for long times, where short and long depend on the temperature. By invoking some exact results from statistical mechanics we offer an alternative method to compute shear moduli using molecular dynamics simulations, and compare those to the Monte Carlo method. The final conclusion is that these systems are not “viscous fluids” in the usual sense, as their actual time-dependence concatenates solidlike materials with varying local shear moduli. IS - 5 JF - Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) TI - Mechanical properties of glass forming systems PB - APS VL - 76 SP - 052401 KW - glass_transition AU - Ilyin, Valery AU - Makedonska, Nataliya AU - Procaccia, Itamar AU - Schupper, Nurith PY - 2007/// UR - http://dx.doi.org/10.1103/PhysRevE.76.052401 ER -