Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-29T07:11:04.903Z Has data issue: false hasContentIssue false
  • English
  • Français

Potential for Diboride Reinforcement of Oxide Matrix Composites

Published online by Cambridge University Press:  21 February 2011

K. Vedula ,
A. Abada  and
W. S. Williams
K. Vedula
Affiliation:
Associate Professor, Graduate Student and Professor, respectively. Department of Materials Science and EngineeringCase Western Reserve University, Cleveland, Ohio 44106
A. Abada
Affiliation:
Associate Professor, Graduate Student and Professor, respectively. Department of Materials Science and EngineeringCase Western Reserve University, Cleveland, Ohio 44106
W. S. Williams
Affiliation:
Associate Professor, Graduate Student and Professor, respectively. Department of Materials Science and EngineeringCase Western Reserve University, Cleveland, Ohio 44106
Get access

Abstract

Particulate composites of TiB2 in ZrO2, Y2O3 and Al2O3 have been prepared by vacuum hot pressing. Specimens were tested in oxyacetylene flames at 1650 to 2050°C; in vacuum at 1600°C and by induction heating in air at 1400 to 1600°C in order to evaluate the chemical compatability between the diboride/oxide combinations, as well as the effectiveness of the oxides as diffusion barriers. Results indicate that the large vapor ressure of B2O3 formed at the diboride/oxide interfaces presents serious problems under all the conditions tested.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 125: Symposium N – Materials Stability and Environmental Degradation , 1988 , 61
Copyright
Copyright © Materials Research Society 1988

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

REFERENCES

1. Ramberg, J. R. and Williams, W. S., J. Mat. Sci. Vol.22, p. 1815, 1987.Google Scholar
2. Graham, H. C., Davis, H. H. and Kvernes, I. A., AGARD Conf. Proc. 1970, 52, 9, 9 pp.Google Scholar
3. Irving, R. J. and Worsley, I. G., J. of Less Common Metals, Vol. 16, p. 103, 1968.Google Scholar
4. Berkowitz-Mattuck., J. B. J. Electrochem. Soc., Vol.113, No. 9, p. 909, 1966.Google Scholar
5. Tripp, W. C. and Graham, H. C., J. Electrochem. Soc., Vol.118, No. 7, p. 1197, 1971.CrossRefGoogle Scholar
6. Kuriakose, A. K. and Margrove, J. L., J. Electrochem. Soc. Vol.111, No. 7, p. 827, 1964.Google Scholar
7. Tripp, W. C., Davis, H. H. and Graham, H. C., Ceramic Bulletin, Vol.52, No. 8, p. 612, 1973.Google Scholar