Lawrence Berkeley National Laboratory
Effect of pressure on the crystal structure of ettringite
- Author(s): Clark, Simon M.
- Colas, Bruno
- Kunz, Martin
- Speziale, Sergio
- Monteiro, Paulo J.M.
- et al.
X-ray diffraction and infrared data have been collected from a sample of ettringite from ambient pressure to 6.4 GPa. The sample was found to reversibly transform to an amorphous phase at 3 GPa. The isothermal bulk modulus of ettringite was found to be 27(7) GPa and the incompressibilities of the lattice parameters were found to be 71(30) GPa along a and 108(36) GPa along c.