Hostname: page-component-76fb5796d-dfsvx Total loading time: 0 Render date: 2024-04-25T11:33:18.430Z Has data issue: false hasContentIssue false
  • English
  • Français

“Chemically Bonded Ceramic Matrix Composites: Densification and Conversion to Diffusion Bonding”

Published online by Cambridge University Press:  15 February 2011

Bradley R. Johnson ,
Mehmet A. Gülgün  and
Waltraud M. Kriven
Bradley R. Johnson
Affiliation:
University of Illinois, Department of Materials Science and Engineering, 105 S. Goodwin Ave, Urbana, IL 6180 1, USA
Mehmet A. Gülgün
Affiliation:
University of Illinois, Department of Materials Science and Engineering, 105 S. Goodwin Ave, Urbana, IL 6180 1, USA
Waltraud M. Kriven
Affiliation:
University of Illinois, Department of Materials Science and Engineering, 105 S. Goodwin Ave, Urbana, IL 6180 1, USA
Get access

Abstract

Chemically bonded ceramics appear to be a promising alternative route for near-net shape fabrication of multi-phase ceramic matrix composites (CMC's). The hydraulic (and refractory) properties of fine mono-calcium aluminate (CaAl2O4) powders were used as the chemically bonding matrix phase, while calcia stabilized zirconia powders were the second phase material. Samples containing up to 70 wt% (55 vol%) zirconia have been successfully compacted and sintered.

Various processing techniques were evaluated. Processing was optimized based on material properties, dilatometry and simultaneous thermal analysis (DTA'TGA ). The physical characteristics of this novel CMC were characterized by hardness, density, and fracture toughness testing. Microstructures were evaluated by SEM and phase identification was verified using XRD.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 365: Symposium M – Ceramic Matrix Composites–Advanced High-Temperature Structural Materials , 1994 , 67
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Gülgün, M.A., Johnson, B.R. and Kriven, W.M. in Better Ceramics Through Chemistry VI edited by Cheetham, A. K., Brinker, C.J.. Mecartney, M.L. and Sanchez, C. (Mater. Res Soc. Proc. 346, Pittsburgh, PA, 1994) pp. 511–516.Google Scholar
2. Cherian, I.K. and Kriven, W.M. in Advances in Ceramic-Matrix Composites edited by Bansal, Narottam P. (Am. Ceram. Soc. Ceramic Transactions 38, Westerville, OH 1994) pp, 509–520.Google Scholar
3. Borglum, B.P., Bukowski, J.M., Young, J.F., and Buchanan, R.C., J. Am. Ceram. Soc. 76 [5] 1354–56 (1993).Google Scholar
4. Gülgün, M.A., Popoola, O.O., Nettleship, I., Kriven, W.M. and Young, J.F., in Advanced Cementitious Systems: Mechanisms and Properties, edited by Glasser, F.P., Pratt, P.L., Mason, T.O., Young, J.F., and McCarthy, G.J. (Mater. Res. Soc. Proc. 245, Pittsburgh, PA, 1992) pp. 199–204.Google Scholar
5. Tai, L.W., Lessing, P.A., J. Mater. Res. 7, No 2. 502–510. (1992).Google Scholar
6. Tai, L.W., Lessing, P.A., J. Mater. Res. 7, No2. 511–519. (1992).Google Scholar
7. Rice, R.W. in Better Ceramics Through Chemistry edited by Brinker, C.J., Clark, D.E. and Ulrich, D.R. (Mater. Res. Soc. Proc. 32, Pittsburgh, PA, 1984) pp. 337–343.Google Scholar
8. Desai, P.G., Xu, Z., and Lewis, J.A., Synthesis and Characterization of CaAI204-Coated A1204 Microcomposite Particles (Submitted to J. Am. Cer. Soc.)Google Scholar
9. Bannister, M.J., J. Aust. Cer. Soc. 17, No.1, 1981.Google Scholar
10. JCPDF file card number 33-254.Google Scholar