Hostname: page-component-6bf8c574d5-8gtf8 Total loading time: 0 Render date: 2025-02-15T09:02:08.421Z Has data issue: false hasContentIssue false
  • English
  • Français

Use of CVD Ain Films as Protective Coatings in MoSi2 Composites

Published online by Cambridge University Press:  15 February 2011

Mark J. Cook ,
John B. Hudson  and
William B. Hillig
Mark J. Cook
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180
John B. Hudson
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180
William B. Hillig
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180
Get access

Abstract

In many fiber reinforced composite systems, protective coatings on the fibers are required in order to protect the fiber from reaction with the matrix, to modify the mechanical properties of the fiber-matrix interface, or to protect the fiber during processing steps such as chemical vapor infiltration. We have developed techniques for coating single crystal sapphire fibers with thin AIN layers, using CVD from an organometallic precursor in a cold wall reactor. Side by side tests of coated and uncoated fibers introduced into a MoSi2 matrix, either by hot isostatic pressing or by reactive vapor infiltration (RVI), indicate that the coating inhibits both fibermatrix interdiffusion and volatilization of the fibers by HC1 produced in the RVI process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 365: Symposium M – Ceramic Matrix Composites–Advanced High-Temperature Structural Materials , 1994 , 457
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. Fitzer, E. and Remmele, W., in Proceedings 5th International Conference on Composite Materials. ICCM-V, edited by Harrigan, W.C. Jr., Strife, J. and Dhingra, A.K. (AIME Publications, Warrendale, PA, 1985) p. 515.Google Scholar
2. Gac, F.D. and Petrovic, J.J., J. Amer. Ceram. Soc., 68, p. C200 (1985).Google Scholar
3. Alman, D.E. and Stoloff, N.S. in Intermetallic Matrix Composites II, edited by Miracle, D.B., Auton, D.L. and Graves, J.A. (Mater. Res. Soc. Proc. 273, Pittsburgh, PA, 1992) p. 247.Google Scholar
4. Ellenburg, M.G., Hanigofsky, J.A. and Lackey, W.J., J. Mater. Res., 9, p. 789.Google Scholar
5. Patibandla, N. and Hillig, W.B., J. Amer. Ceram. Soc., 76, p. 1630.Google Scholar
6. Cook, M.J., Wu, P.K., Patibandla, N., Hillig, W.B. and Hudson, J.B. in Metal-Organic Chemical Vapor Deposition of Electronic Ceramics, edited by Desu, S.B., (Mater. Res. Soc. Proc. 335, Pittsburgh, PA, 1994) p. 101.Google Scholar
7. Bilbao, M., MS thesis, Rensselaer Polytechnic Institute, 1994.Google Scholar