Chapter 5. Effects of Atmosphere and Dew Point on the Wetting Characteristics of a Glass-Ceramic on Two Nickel-Based Superalloys

  1. William Smothers
  1. Daniel P. Kramer and
  2. N. R. Osborne

Published Online: 26 MAR 2008

DOI: 10.1002/9780470320167.ch5

Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10

Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10

How to Cite

Kramer, D. P. and Osborne, N. R. (1983) Effects of Atmosphere and Dew Point on the Wetting Characteristics of a Glass-Ceramic on Two Nickel-Based Superalloys, in Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320167.ch5

Author Information

  1. Monsanto Research Corp. Miamisburg, OH 45342

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1983

ISBN Information

Print ISBN: 9780470374047

Online ISBN: 9780470320167

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Keywords:

  • multicomponent;
  • atmosphere;
  • glass-ceramic melts;
  • corrosion;
  • atmosphere

Summary

Sessile drop experiments were performed for a multicomponent lithia-alumina-silica glass-ceramic on two nickel-base superalloys. Contact angle measurements were obtained as a function of atmosphere (argon, helium, and 95% argon/5% hydrogen); atmospheric dew point (between –40°C to +28°C), and oxygen concentration (10 ppm, 300 ppm, and 10 000 ppm in argon). The results show that a helium atmosphere yields the lowest contact angles between the glass and metal parts and that, in general, the contact angles decrease as the atmospheric dew point increases. The effect of oxygen concentration on the contact angle was determined to be dependent on the particular metal alloy.