On the Phase Diagram of Calcium Carbonate Solutions

Abstract

A liquid–liquid phase boundary is experimentally determined in calcium carbonate solutions obtained by rapid mixing. Nanoparticles of amorphous calcium carbonate form at concentration higher than this boundary and their size diverges close to the boundary, which is interpreted as a spinodal line. At lower concentrations, the solution is metastable against the nucleation of crystalline calcium carbonate phases.

Publication
Advanced Materials Interfaces
Zhaoyong Zou
Zhaoyong Zou
Professor

My research interests include bioprocess inspired fabrication, crystallization and ceramics.

Peter Fratzl
Peter Fratzl
Professor at Max Planck Institute of Colloids and Interfaces, Member of the German National Academy of Sciences Leopoldina

Director of the Department of Biomaterials at the Max Planck Institute of Colloids and Interfaces, a leading scholar in biological and bio-inspired materials science, studying the relationship between hierarchical structure and physical properties of natural materials such as bone, wood, and mollusk shells.