The dynamical fragile-to-strong crossover in attractive colloidal systems

被引：3

作者：

Mallamace, Francesco ^{[1
,2
]}

Corsaro, Carmelo ^{[1
]}

Vasi, Cirino ^{[3
]}

Vasi, Sebastiano ^{[3
]}

Mallamace, Domenico ^{[4
]}

Chen, Sow-Hsin ^{[2
]}

机构：

[1] Univ Messina, Dipartimento Fis & Sci Terra, I-98168 Messina, Italy

[2] MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA

[3] CNR, IPDF, I-98158 Messina, Italy

[4] Univ Messina, Dipartimento SASTAS, I-98168 Messina, Italy

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2015年 / 407卷

关键词：

Diverging processes; Dynamic crossover; Fragile to strong transition; Glass forming materials; Soft-matter; GLASS-FORMING LIQUIDS; SUPERCOOLED LIQUIDS; TRANSITION; RELAXATION; TEMPERATURE; SCATTERING; VISCOELASTICITY; SUSPENSIONS; PERCOLATION; VISCOSITY;

D O I：

10.1016/j.jnoncrysol.2014.08.010

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The dynamics of a hierarchical colloid solution, dendrimer in methanol, has been studied using photon-correlation spectroscopy (PCS). The obtained relaxation curves are analyzed accordihg to the mode-coupling theory (MCT). The main results are: i) the occurrence of a fragile to strong dynamical crossover as a function of the packing fraction at phi(c) similar or equal to 0.39, and ii) the observation of a secondary relaxation (beta) that has its onset just at the dynamical crossover and is correlated with the primary alpha-relaxation. Finally we discuss the obtained findings in comparison with recent experiments in similar systems characterized by an attractive interaction obtaining a confirmation on the primary role of the dynamical crossover in the physics of the dynamical arrest. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：355 / 360

页数：6

共 50 条

[41] Understanding the Fragile-to-Strong Transition in Silica from Microscopic Dynamics
Yu, Zheng
Morgan, Dane
Wang, Bu
Ediger, M. D.
PHYSICAL REVIEW LETTERS, 2022, 129 (01)
[42] Fragile-to-strong liquid transition in deeply supercooled confined water
Faraone, A
Liu, L
Mou, CY
Yen, CW
Chen, SH
JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (22): : 10843 - 10846
[43] Quasielastic and inelastic neutron scattering investigation of fragile-to-strong crossover in deeply supercooled water confined in nanoporous silica matrices
Liu, Li
Chen, Sow-Hsin
Faraone, Antonio
Yen, Chun-Wan
Mou, Chung-Yuan
Kolesnikov, Alexander I.
Mamontov, Eugene
Leao, Juscelino
JOURNAL OF PHYSICS-CONDENSED MATTER, 2006, 18 (36) : S2261 - S2284
[44] Thermodynamic determination of fragility in liquids and a fragile-to-strong liquid transition in water
Ito, K
Moynihan, CT
Angell, CA
NATURE, 1999, 398 (6727) : 492 - 495
[45] Multiple relaxation processes versus the fragile-to-strong transition in confined water
Bruni, F.
Mancinelli, R.
Ricci, M. A.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (44) : 19773 - 19779
[46] Crossover from fragile to strong glassy behavior in kinetically constrained systems
Buhot, A
Garrahan, JP
PHYSICAL REVIEW E, 2001, 64 (02): : 4 - 215054
[47] Fragile-to-strong transition in liquid silica (vol 6, 035131, 2016)
Geske, Julian
Drossel, Barbara
Vogel, Michael
AIP ADVANCES, 2016, 6 (05):
[48] Fragile-to-strong glass transition in two-dimensional vortex liquids
Maccari, I.
Benfatto, L.
Castellani, C.
Lorenzana, J.
De Michele, C.
PHYSICAL REVIEW RESEARCH, 2025, 7 (01):
[49] Plasticity of metallic glasses dictated by their state at the fragile-to-strong transition temperature
Atila, Achraf
Sukhomlinov, Sergey, V
Honecker, Marc J.
Mueser, Martin H.
ACTA MATERIALIA, 2025, 286
[50] Revisiting the fragile-to-strong crossover in metallic glass-forming liquids: Application to CuxZrxAl100-2x alloy
Alvarez-Donado, Rene
Cajahuaringa, Samuel
Antonelli, Alex
PHYSICAL REVIEW MATERIALS, 2019, 3 (08):

← 1 2 3 4 5 →