Advertisement

Journal of Materials Science

, Volume 32, Issue 21, pp 5703–5708 | Cite as

Preparation and characterization of ceramic porous sheet composed of platelet (Cr, Al)2O3 crystals

  • S HASHIMOTO
  • A YAMAGUCHI
  • T KAMIYA
Article
  • 58 Downloads

Abstract

A compact powder mixture consisting of 3Al2O3·2SiO2 (mullite) and Cr2O3, which was heated in a carbon powder bed, was cut into a 1 mm thickness sheet. The ceramic porous sheet composed of platelet (Cr, Al)2O3 crystals was prepared by leaching SiO2 contained in the sheet by hydrofluoric acid. The porous sheet produced from the 50 mass % mullite/50 mass % Cr2O3 compact, heated at 1500°C for 2 h, was composed of platelet crystals with 30 μm average length and 4.6 μm average thickness. Its relative density and specific surface area were 73 % and 4.4 m2 g-1 respectively.

Keywords

Relative Density Average Thickness Cristobalite Porous Ceramic Sintered Compact 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H. KATSUKI, S. FURUTA, H. ICHINOSE and H. NAKAO J. Ceram. Soc. Jpn 96 (1988) 1081.CrossRefGoogle Scholar
  2. 2.
    H. KATSUKI, A. KAWAHARA, H. ICHINOSE, S. FURUTA and O. MATSUDA, ibid. 99 (1991) 723.CrossRefGoogle Scholar
  3. 3.
    H. ABE, H. SEKI, A. FUKUNAGA and M. EGASHIRA, ibid. 97 (1989) 604.CrossRefGoogle Scholar
  4. 4.
    T. KASUGA, T. INOUE, K. TSUJI, Y. OTA and Y. ABE, J. Am. Ceram. Soc. 78 (1995) 245.CrossRefGoogle Scholar
  5. 5.
    A. YAMAGUCHI, Ceram. Int. 12 (1986) 19.CrossRefGoogle Scholar
  6. 6.
    J. W. BROCKMEYER, “Ceramic Foam Filter,” U States Pat. US 4343 704 (1982).Google Scholar
  7. 7.
    J. C. BLOME, “Ceramic Foam Filter for Moten Metals”, Ger. Offen. Pat. DE 3000 835 (1981).Google Scholar
  8. 8.
    A. YAMAGUCHI, Taikabutsu 38 (1986) 232.Google Scholar
  9. 9.
    S. HASHIMOTO and A. YAMAGUCHI, J. Cryst. Growth 154 (1995) 329.CrossRefGoogle Scholar
  10. 10.
    P. L. ROEDER, F. P. GLASSER and E. F. OSBORN, J. Am. Ceram. Soc. 51 (1968) 585.CrossRefGoogle Scholar
  11. 11.
    R. E. JOHNSON and A. MUAN, ibid. 51 (1968) 430.CrossRefGoogle Scholar
  12. 12.
    S. HASHIMOTO and A. YAMAGUCHI, J. Mater. Sci. 31 (1996) 317.CrossRefGoogle Scholar

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • S HASHIMOTO
    • 1
  • A YAMAGUCHI
    • 1
  • T KAMIYA
    • 1
  1. 1.Department of Materials Science and EngineeringNagoya Institute of Technology, Gokiso-cho, Showa-kuNagoyaJapan

Personalised recommendations