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Borate Glasses pp 623-634 | Cite as

Reaction Cured Borosilicate Glass Coating for Low-Density Fibrous Silica Insulation

  • Howard E. Goldstein
  • D. B. Leiser
  • V. Katvala
Part of the Materials Science Research book series (MSR, volume 12)

Abstract

The Space Shuttle Orbiter, shown in Fig. 1 will be the world’s first reusable space vehicle. Basic to the development of such a vehicle is the requirement for a heat shield that can survive multiple reentries into the earth’s atmosphere at temperatures up to 1400°C. For the majority of the orbiter’s surface, a material was required that had good insulative properties, could survive temperatures up to 1260°C, and would be extremely light weight. It would also be required to survive large temperature gradients (>1000°C/cm) and severe thermal shock resulting from the entry environment (Fig. 2). The convective heating environment which occurs during the vehicle’s entry is unique in that it can result in chemical interactions between the high-temperature gases and the solid surface. These interactions cause an abnormally high vaporization rate to occur among the less refractory compounds present in a heat-shield surface (1). Therefore, the stability of the heat shield in this type of environment is critical to the success of the vehicle.

Keywords

Borosilicate Glass Boron Oxide Silica Substrate Heat Shield Corning Glass Work 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Stewart, David A. and Leiser, Daniel B., “Effect of Radiant and Convective Heating on the Optical and Thermochemical Properties of Reusable Surface Insulation,” AIAA Paper No. 76044, presented at AIAA 11th Thermophysics Conf., San Diego, Calif., July 14–16, 1976.Google Scholar
  2. 2.
    Goldstein, Howard E., Buckley, John D., King, Marshal H., Probst, Hubert B. and Spiker, Ike K., NASA TM X-2570.Google Scholar
  3. 3.
    Beasley, R. M., Izu, Y. D., Nakano, Ozolin A. A. and Pechman, A., “Fabrication and Improvement of LMSC’s All-Silica RSI,” NASA TM X-2719, Sept. 1973, pp. 1–17.Google Scholar
  4. 4.
    Pigg, O. E., “Results of RSI Thermal-Structure Analysis,” NASA TM X-2721, Sept. 1973, pp. 1227–1269.Google Scholar
  5. 5.
    Ransom, P. O. and Dicus, D. L., “Effects of Sea Salts on the Physical Characteristics of Reusable Surface Insulation,” NASA TM X-2720, Sept. 1973, pp. 765–792.Google Scholar
  6. 6.
    U.S. Patent 3,378,431, April 16, 1968. Method of Making Carbon-Containing Glass and Product Thereof, by Smith, Carlyle F., Crandall, William B.Google Scholar

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Howard E. Goldstein
    • 1
  • D. B. Leiser
    • 1
  • V. Katvala
    • 1
  1. 1.Ames Research CenterNASAMoffett FieldUSA

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