| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1603610 | International Journal of Refractory Metals and Hard Materials | 2013 | 6 Pages |
•A brief introduction on γ-AlON ceramic and AlON based phosphor was provided.•Different fabrication methods of AlON powders were discussed.•The influence of Al2O3/C ratio on the phase purity of AlON powder was studied.•The effect of powder processing and sintering system on AlON ceramic was discussed.•Luminescent properties of rare earth doped AlON phosphor were reviewed.
In this paper after providing a brief introduction on the mechanical properties, optical performances and various applications of aluminum oxynitride (AlON) ceramic, we have reviewed the fabrication methods of AlON powder and ceramic, respectively. Our collaborative work has recently demonstrated that AlON ceramic with high transmittance can be obtained by carbothermal reduction and nitridation (CRN) method through strictly controlling Al2O3/C ratio, powder processing, sintering temperature and holding time. It has been observed that the presence of pores and liquid phases in microstructure has negative effect on the improving of transmittance. In the final part of the review we have identified that certain rare earth doped AlON could be considered as attractive material candidates for the phosphor-converted white LEDs and light-emitting devices.
