Abstract
During a two-step sintering practice, important factors such as final grain sizes and residual pore status can be controlled through adjusting the first and second step sintering temperatures and durations. Moreover, the sintering temperatures (both the first and the second step) can be several hundred degrees lower than those in a traditional sintering process to obtain fully dense ceramics. Therefore, it is a potentially cost-effective preparation procedure for ceramics with fine grains. In this work, we successfully demonstrated the synthesis of aggregate-free sesquioxide nanometer-sized powders with a narrow size distribution through a modified chemical co-precipitation process. Subsequently, ytterbium-doped Lu2O3 ceramics of near full density were obtained through a two-step sintering process.
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References
- 1.
A. Ikesue, Y.L. Aung, T. Taira, T. Kamimura, K. Yoshida, K., and G.L. Messing, “Progress in ceramic lasers”, Annu. Rev. Mater. Res. 36, 397–429 (2006).
- 2.
A.A. Kaminskii. Laser Crystals, 2nd ed. (Springer Berlin, 1990); Handbook of optical Materials. Ed. By M.J. Weber (CRC Press, Boca Raton, FL, 2003).
- 3.
K. Petermann, L. Fornasiero, E. Mix, and V. Peters, “High melting sesquioxides: crystal growth, spectroscopy, and laser experiments,” Opt. Mater. 19, 67–71 (2002).
- 4.
H. Gleiter, “Nanocrystalline materials,” Prog. Mater. Sci. 33, 223–315 (1989).
- 5.
M.J. Mayo, “Processing of nanocrystalline ceramics from ultrafine particles” Int. Mater. Rev. 41, 85–115 (1996).
- 6.
S.-C. Liao, Y.-J. Chen, B.H. Kear and W.E. Mayo, “High pressure/low temperature sintering of nanocrystalline alumina,” Nanostruct. Mater. 10, 1063–79 (1998).
- 7.
I.-Wei Chen and X.-H. Wang, “Sintering dense nanocrystalline ceramics without final-stage grain growth,” Nature 404, 168–71 (2000).
- 8.
P. Durán, F. Capel, J. Tartaj and C. Moure, “A strategic two-stage low-temperature thermal processing leading to fully dense and fine-grained doped ZnO varistors,” Adv. Mater. 14, 137–41 (2002).
- 9.
Y-I Lee, Y-W Kim, M. Mitomo, and D-Y. Kim, “Fabrication of dense nanostructured silicon carbide ceramics through two-step sintering,” J. Am. Ceram. Soc. 86, 1803–5 (2003).
- 10.
T. Zou, X. Wang, W. Zhao, and L. Li, “Preparation and properties of fine-grain (1-x)BiScO3-xPbTiO3 ceramics by two-step sintering,” J. Am. Ceram. Soc. 91,121–6 (2008).
- 11.
Z. Huang, X. Sun, Z. Xiu, S. Chen, C.-T.Tsai, “Precipitation synthesis and sintering of yttria nanopowders,” Mater. Lett., 58, 2137–2142 (2004).
- 12.
U. Griebner, V. Petrov, K. Petermann and V. Peters, “Passively mode-locked Yb:Lu2O3 laser,” Optics Express 12, 3125–30 (2004).
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Guo, X., Li, K.K., Wang, Y. et al. Two-step Sintering Process for Lutetium Oxide Transparent Ceramics. MRS Online Proceedings Library 1309, 1013090621 (2011). https://doi.org/10.1557/opl.2011.100
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