Mechanical strength of amorphous CaCO3 colloidal spheres.
Amorphous glassy CaCO3 colloidal spheres of monomodal size distribution were studied by high-resolution Brillouin light scattering. The Young modulus of 37 GPa and shear modulus of 14 GPa of glassy CaCO3 at a density of 1.9 g/cm3 were extracted from the particle vibration frequencies by employing acoustic wave scattering cross-section calculations. The line shape of the low-frequency modes is a sensitive index of the particle polydispersity.
Faatz
Michael
M
Max Planck Institute for Polymer Research, P.O. Box 3148, 55128 Mainz, Germany.
Cheng
Wei
W
Wegner
Gerhard
G
Fytas
George
G
Penciu
Raluca S
RS
Economou
Eleftherios N
EN