On the Sintering Activation Energy of α-Al2O3

Abstract:

Article Preview

The sintering activation energy of high-purity alumina powders with different particle sizes was evaluated under non-isothermal condition. It was found that, during sintering, the activation energy for the lower temperature stage is higher than that for higher temperature stage. The value of the activation energies for the powder compact with larger particle size was higher than that for the powder compact with smaller particle size. If the selected temperature interval for calculation was narrow enough, the evaluated activation energy values varied with the increasing temperature continuously.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

686-687

Citation:

W. Q. Shao et al., "On the Sintering Activation Energy of α-Al2O3", Key Engineering Materials, Vols. 368-372, pp. 686-687, 2008

Online since:

February 2008

Export:

Price:

$38.00

[1] G.C. Kuczynski: Trans. Am. Inst. Mining. Met. Eng. Vol. 185(1949), p.169.

[2] R.L. Coble: J. Appl. Phys. Vol. 32(1961), p.787.

[3] J.K. McCoy and R.R. Wills: Acta. Metall. Vol. 35(1987), p.577.

[4] T.T. Fang, J.T. Shive and F.S. Shiau: Mater. Chem. Phys. Vol. 80(2003), p.108.

[5] Z. He and J. Ma: Comput. Mater. Sci. Vol. 32(2005), p.96.

[6] X.D. Xiong: Rare. Metal. Mater. Eng. Vol. 28(1999), p.298.

[7] J. Wang and R. Raj: J. Am. Ceram. Soc. Vol. 73(1990), p.1172.

[8] B.B. Panigrahi, M.M. Godkhindi, K. Das, et al.: Mater. Sci. Eng. A. Vol. 396(2005), p.255. Fig. 2 Plots of ) ln( dTdTT ρ& and 1/T Fig. 3 Relationship of Q and T.

Fetching data from Crossref.
This may take some time to load.