A new class of low compressibility materials : clathrates of silicon and related materials
Langue
en
Article de revue
Ce document a été publié dans
High Pressure Research. 2002, vol. 22, n° 3-4, p. 539-544
Taylor & Francis
Résumé en anglais
We discuss the high pressure properties of different silicon clathrate structures that we have investigated by means of X-ray diffraction and ab initio calculations. Compressibility, transition pressures or phase transformations ...Lire la suite >
We discuss the high pressure properties of different silicon clathrate structures that we have investigated by means of X-ray diffraction and ab initio calculations. Compressibility, transition pressures or phase transformations are interpreted as a function of the nature of the guest atom intercalation. The compressibility of the clathrate structure is in all cases close to that of silicon diamond whereas transition pressures or the high pressure phases are extremely depending on the nature of the guest atom. We address the implications for obtaining a metallic material as hard as diamond.< Réduire
Mots clés en anglais
Silicon
Clathrates
Hard Materials
X-ray Diffraction
Compressibility
Fullerenes
Origine
Importé de halUnités de recherche