Skip to main content Accessibility help
×
Home

Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant

  • Ji Guang Li (a1), Takayasu Ikegami (a1), Jong-Heun Lee (a1), Toshiyuki Mori (a1) and Yoshiyuki Yajima (a1)...

Abstract

Ammonium hydrogen carbonate was used as the precipitant to synthesize yttrium aluminate garnet (YAG) precursors from a mixed solution of aluminum and yttrium nitrates via coprecipitation. The carbonate precursor, with an approximate composition of NH4AlY0.6(CO3)1.9(OH)2 · 0.8H2O, transformed to pure YAG at 900 °C without the formation of intermediate phases. Reactive YAG powder was produced by calcining the precursor at 1100 °C. The YAG powder densified to 99.8% of the theoretical density by vacuum sintering at 1500 °C for 2 h, and the sintered body showed transparency. Less agglomeration of the precursor and good dispersity of the resultant YAG powder were responsible for the excellent sinterability.

Copyright

References

Hide All
1.Cockayne, B., J. Less-Common Met. 114, 119 (1985).
2.Corman, G.S., Ceram. Eng. Sci. Proc. 12, 1745 (1991).
3.Geller, S., Z. Krystall. Bd. 125, 1 (1967).
4.Messier, D.R. and Gazza, G.E., Am. Ceram. Soc. Bull. 51, 692 (1972).
5.Gowda, G., J. Mater. Sci. Lett. 5, 1029 (1986).
6.Manalert, R. and Rahaman, M.N., J. Mater. Sci. 31, 3453 (1996).
7.Haneda, H., Watanabe, A., Matsuda, S., Sakai, T., Shirasaki, S., and Yamamura, H., in Sintering'87, edited by Somiya, S., Shimada, M., Yoshimura, M., and Watanabe, R. (Elsevier Science Publishers, Essex, United Kingdom, 1988), p. 381.
8.Kinsman, K.M., McKittrick, J., Sluzky, E., and Heese, K., J. Am. Ceram. Soc. 77, 2866 (1994).
9.Iga, T. and Isawa, Y., in Transactions of the Materials Research Society of Japan, edited by Somiya, S., Doyama, M., and Agata, Y. (Materials Research Society of Japan, Tokyo, 1991), p. 1.
10.Saito, N., Matsuda, S., and Ikegami, T., J. Am. Ceram. Soc. 81, 2023 (1998).
11.Hayashi, K., Toyoda, S., Nakashima, K., and Morinaga, K., J. Ceram. Soc. Jpn. 98, 444 (1990).
12.Head, E.L. and Holly, C.E. Jr, in Proceedings of the Fourth Conference on Rare Earth Research, edited by Eyring, L. (Gordon and Beach, New York, 1965), p. 707.
13.Kinsman, K.M., McKittrick, J., Sluzky, E., and Kesse, K., J. Am. Ceram. Soc. 77, 2866 (1994).
14.Lange, F.F., J. Am. Ceram. Soc. 72, 3 (1981).

Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant

  • Ji Guang Li (a1), Takayasu Ikegami (a1), Jong-Heun Lee (a1), Toshiyuki Mori (a1) and Yoshiyuki Yajima (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed