Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1478141 | Journal of the European Ceramic Society | 2007 | 5 Pages |
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.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Abbas Saeed Hakeem, Jekabs Grins, Saeid Esmaeilzadeh,