Faatz Michael, Cheng Wei, Wegner Gerhard, Fytas George, Penciu Raluca S, Economou Eleftherios N
Max Planck Institute for Polymer Research, P.O. Box 3148, 55128 Mainz, Germany.
Langmuir. 2005 Jul 19;21(15):6666-8. doi: 10.1021/la050604m.
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.
通过高分辨率布里渊光散射研究了单峰尺寸分布的非晶态玻璃状碳酸钙胶体球。通过利用声波散射截面计算，从颗粒振动频率中提取出密度为1.9 g/cm³ 的玻璃状碳酸钙的杨氏模量为37 GPa，剪切模量为14 GPa。低频模式的线形是颗粒多分散性的敏感指标。
