Abstract
Oxynitride glasses are formed by the replacement of oxygen atoms by nitrogen in silicate and aluminosilicate glasses in various M-Si-O-N, M-Si-Al-O-N, and M-Si-Mg-O-N systems, where M is a modifying cation such as Mg, Ca, Ba, Sc, Y and the rare earth lanthanides. Representation of four and five-component systems are explained and glass forming regions are outlined. Characterization techniques such as Nuclear Magnetic Resonance (NMR), Fourier Transform Infrared (FTIR), Raman and X-ray Photoeletron Spectroscopy (XPS) provide evidence for structural features such as tri-coordinated nitrogen and the existence of SiO3N and SiO2N2 tetrahedra. The roles that Al, Mg and other cations play in the structure of oxynitride glasses are discussed.
| Original language | English |
|---|---|
| Title of host publication | Encyclopedia of Materials |
| Subtitle of host publication | Technical Ceramics and Glasses: Volume 1-3 |
| Publisher | Elsevier |
| Pages | V2-555-V2-568 |
| Number of pages | 14 |
| Volume | 2 |
| ISBN (Electronic) | 9780128185421 |
| ISBN (Print) | 9780128185421 |
| DOIs | |
| Publication status | Published - 1 Jan 2021 |
Keywords
- Aluminosilicate
- Cross-linking
- FTIR
- Glass forming region
- Jänecke prism
- M-Si-Al-O-N
- Network former
- Network modifier
- NMR
- Oxynitride
- Raman
- Silicate
- Tri-coordinated nitrogen
- XPS