Back to Search
Start Over
Origin of the low compressibility in hard nitride spinels
- Source :
- Mori-Sánchez , P , Marqués , M , Beltrán , A , Jiang , J , Gerward , L & Recio , J M 2003 , ' Origin of the low compressibility in hard nitride spinels ' , Physical Review B Condensed Matter , vol. 68 , no. 6 , pp. 064115 .
- Publication Year :
- 2003
-
Abstract
- A microscopic investigation of first-principles electron densities of gamma-A(3)N(4) (A:C,Si,Ge) spinels reveals a clear relationship between the compressibility and the chemical bonding of these materials. Three striking findings emanate from this analysis: (i) the chemical graph is governed by a network of highly directional strong bonds with covalent character in gamma-C3N4 and different degrees of ionic polarization in gamma-Si3N4 and gamma-Ge3N4, (ii) nitrogen is the lowest compressible atom controlling the trend in the bulk modulus of the solids, and (iii) the group-IV counterions show strong site dependent compressibilities enhancing the difficulty in the synthesis of the spinel phases of these nitrides.
Details
- Database :
- OAIster
- Journal :
- Mori-Sánchez , P , Marqués , M , Beltrán , A , Jiang , J , Gerward , L & Recio , J M 2003 , ' Origin of the low compressibility in hard nitride spinels ' , Physical Review B Condensed Matter , vol. 68 , no. 6 , pp. 064115 .
- Notes :
- application/pdf, English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1139958785
- Document Type :
- Electronic Resource