Fabrication of Transparent YAG Ceramics from Co-Precipitation Synthesized Nanopowders

Abstract:

Article Preview

YAG nanopowders were synthesized by a co-precipitation method using ammonium hydrocarbonate and ammonia water as the precipitants respectively. The influences of precipitants on chemical compositions, phase transformation and sinterability of the prepared powders, and transmittance of the vacuum-sintered YAG ceramics were studied. The sinterability of powders synthesized using ammonium hydrocarbonate as precipitant is better than that with ammonia water. Pure YAG phase can be obtained by calcining the hydrate precursor at 1200°C, while some impurity phases exist when calcining the carbonate precursor at the same temperature. Transparent YAG ceramics were fabricated by vacuum sintering at 1700°C for 5 h using the YAG nanopowders, and their in-line transmittance is about 60% in the visible light range.

Info:

Periodical:

Advanced Materials Research (Volumes 41-42)

Edited by:

Xiaozhi Hu, Brent Fillery, Tarek Qasim and Kai Duan

Pages:

271-276

DOI:

10.4028/www.scientific.net/AMR.41-42.271

Citation:

G. Z. Lv et al., "Fabrication of Transparent YAG Ceramics from Co-Precipitation Synthesized Nanopowders", Advanced Materials Research, Vols. 41-42, pp. 271-276, 2008

Online since:

April 2008

Export:

Price:

$35.00

In order to see related information, you need to Login.