Abstract
Cylindrical stand-alone tubes of plasma-sprayed alumina were tested in uniaxial compression at room temperature, using strain gages to monitor axial strains. The effect of lamella size on the mechanical response was investigated by employing different starting powders to fabricate samples. The average powder sizes investigated included 9 μm, 19 μm and 32 μm alumina; the resulting effective lamella diameters were 10 μm, 28 μm, and 55 μm, respectively. Similar stress-strain hysteresis was observed on unloading in all tubes, independent of lamella size. A strong correlation between the failure stress and the cumulative strain at failure was also observed for tubes fabricated from the three powders. For samples with approximately constant densities, tubes plasma sprayed with the 9 μm powder exhibited greater moduli than tubes sprayed from either 19 or 32 μm powders. This difference was attributed to the greater percentage of unmelted α-Al2O3 in the coating.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Explore related subjects
Discover the latest articles and news from researchers in related subjects, suggested using machine learning.References
E. F. REJDA, D. F. SOCIE and B. BEARDSLEY, Fatigue Fract. Engng. Mater. Struct. 20(7) (1997) 1043.
K. F. WESLING, D. F. SOCIE and B. BEARDSLEY, J. Amer. Ceram. Soc. 77(7) (1994) 1863.
S. R. CHOI, D. ZHU and R. A. MILLER, Ceram. Eng. Sci. Proc. 19(4) (1998) 293.
T. A. CRUSE, B. P. JOHNSEN and A. NAGY, J. Thermal Spray Tech. 6(1) (1997) 57.
B. P. JOHNSEN, T. A. CRUSE, R. A. MILLER and W. J. BRINDLEY, Eng. Mater. Tech. 117(7) (1995) 305.
R. W. TRICE, D. W. PRINE and K. T. FABER, J. Amer. Ceram. Soc. 83(12) (2000) 3057.
C. G. SAMMIS and M. F. ASHBY, Acta Metall. 34(3) (1986) 511.
M. F. ASHBY and S. D. HALLAM, ibid. 34(3) (1986) 497.
T. F. BERNECKI and D. R. MARRON, U.S. Patent no. 5,744,777, 1998, and U.S. Patent no. 5,858,470, 1999
ASTM Standard C 373-72 (1982).
R. W. TRICE and K. T. FABER, J. Amer. Ceram. Soc. 83(4) (2000) 889.
G. MONTAVON, S. SAMPATH, C. C. BERNDT, H. HERMAN and C. CODDET, in Proceedings of the International Thermal Spray Conference, May 1995, Kobe, Japan (1995) p. 365.
R. MCPHERSON, Surface and Coatings Technology 39/40 (1989) 173.
M. ADAMS and G. SINES, J. Amer. Ceram. Soc. 61(3/4) (1978) 126.
ANDREW ALLEN, National Institute of Standards and Technology, private communication.
R. MCPHERSON, J. Mat. Sci. Eng. 15(1980) 3141.
R. M. SPRIGGS, J. Amer. Ceram. Soc. 44(12) (1961) 628.
R. C. ROSSI, ibid. 51(8) (1968) 433.
D. J. GREEN, C. NADER and R. BRENZY, in “Ceramic Transactions,” edited by C. A. Handwerker, J. E. Blendell and W. Kaysser (The American Ceramic Society, Westerville, OH, 1990) vol. 7, p. 345.
S.-H. LEIGH, C.-K. LIN and C. C. BERNDT, J. Amer. Ceram. Soc. 80(8) (1997) 2093.
A. R. DE ARELLANO-LÓPEZ and K. T. FABER, ibid. 82(8) (1999) 2204.
I. SEVOSTIANOV and M. KACHANOV, Mat. Sci. Eng.-AStruct. 297(1–2) (2001) 235.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Trice, R.W., Batson, C., Scharff, C. et al. The role of starting powder size on the compressive response of stand-alone plasma-sprayed alumina coatings. Journal of Materials Science 37, 629–636 (2002). https://doi.org/10.1023/A:1013738112206
Issue Date:
DOI: https://doi.org/10.1023/A:1013738112206