Abstract
Vickers hardness and refractive index have been determined for a series of La-Si-O-N oxy-nitride glasses containing 30-62 e/o of La and 9-68 e/o of N. The hardness varies between 7.7 and 11.5 GPa at a load of 1 kg and is dependent of the N content, while the La content does not influence it significantly. The increase of the hardness with N content is, contrary to reported findings for other oxy-nitride glasses, found not to be linear over the whole compositional range. The refractive index varies between 1.8 and 2.3 and increases non-linearly with increasing N content. The compositional variations of hardness and refractive index are compared with previously published results.
| Original language | English |
|---|---|
| Pages (from-to) | 4783-4787 |
| Number of pages | 5 |
| Journal | Journal of the European Ceramic Society |
| Volume | 27 |
| Issue number | 16 |
| DOIs | |
| State | Published - 2007 |
| Externally published | Yes |
Bibliographical note
Funding Information:Saeid Esmaeilzadeh has been granted a research fellowship from the Royal Swedish Academy of Sciences, financed by the Knut and Alice Wallenberg Foundation. The Swedish Research Council and the Swedish Foundation for International Cooperation in Research and Higher Education are thanked for financial support.
Keywords
- Glass
- Hardness
- Lanthanum
- Optical properties
- Oxynitride
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry