skip to main content

Title: Pressure-Induced Polyamorphism and Formation of 'Aragonitic' Amorphous Calcium Carbonate

Amorphous calcium carbonate (ACC) undergoes a reversible amorphous–amorphous phase transition at 10 GPa, adopting an aragonite-like local order. This result suggests a mechanism by which Mg2+—a cation with smaller ionic radius than Ca2+—modifies the local order of ACC to an aragonite-like order by helping to decrease the molar volume of the amorphous phase.
Authors:
; ; ;  [1] ;  [2] ;  [2]
  1. Macquarie
  2. (
Publication Date:
OSTI Identifier:
1092574
Resource Type:
Journal Article
Resource Relation:
Journal Name: Angewandte Chemie International Edition (Online); Journal Volume: 52; Journal Issue: (32) ; 08, 2013
Publisher:
Gesselschaft Deutscher Chemiker
Research Org:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Org:
NSFDOE - BASIC ENERGY SCIENCES
Country of Publication:
United States
Language:
ENGLISH