Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-03T05:40:53.110Z Has data issue: false hasContentIssue false
  • English
  • Français

Coating of Small Particles by Chemical Vapor Deposition While the Particles are Fluidized

Published online by Cambridge University Press:  15 February 2011

J. L. Kaae
J. L. Kaae*
Affiliation:
General Atomics, P.O. Box 85608, San Diego, California 92186-9784
Get access

Abstract

Coating of small particles is often employed to impart special properties to the particles. One process that has been used to accomplish this is chemical vapor deposition while the particles are fluidized. Because the depositing solids can plug small orifices, the gas distributors used for chemical vapor deposition in a fluidized bed of particles are different from those used for most other fluidized bed processes. The turbulent mixing of the gases by the particle bed and the high collection efficiency of depositing species by the large surface area of the particle bed can produce unique coating microstructures. Examples of these unique microstructures are those of isotropic pyrolytic carbon, fine-grained silicon carbide and carbon-silicon two-phase mixtures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 372: Symposium W1 – Hollow and Solid Spheres and Microspheres--Science and Technology , 1994 , 139
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 Gulden, T.D. and Nickel, H., Nucl. Tech., 35, 206 (1977).Google Scholar
2 Kaae, J.L. (unpublished work).Google Scholar
3 Bokros, J.C., in Chemistry and Physics of Carbon, Vol.5, edited by Walker, P.L. (Marcel Dekker Publishers, New York, 1965).Google Scholar
4 Bokros, J.C., Nature, 202, 1004 (1964).Google Scholar
5 Kaae, J.L., Ceramic and Engineering Proceedings, 9, 1159 (1988).Google Scholar
6 Kunii, Daizo and Levenspiel, Octave, Fluidization Engineering (John Wiley and Sons Publishers, New York, 1969).Google Scholar
7 Noren, Robert C. and Spritzer, Michael H., U.S. Patent No. 4 098 224 (4 July 1978).Google Scholar
8 Brown, Lloyd C., U.S. Patent No. 4 221 182 (9 September 1980).Google Scholar
9 Barnert, Eike, U.S. Patent No. 4 407 230 (4 October 1983).Google Scholar
10 Bokros, J.C., Carbon, 3, 17 (1965).Google Scholar
11 Kaae, J.L., J. Nucl. Mater., 38, 42 (1971).Google Scholar
12 Beatty, Ronald Lee, M.S. thesis, University of Tennessee, 1967.Google Scholar
13 Kaae, J.L., Carbon, 23, 665 (1985).Google Scholar
14 Price, R.J., Nucl. Tech., 35, 320 (1977).Google Scholar
15 Gulden, T.D., J. Am. Ceram. Soc., 54, 498 (1971).Google Scholar
16 Kaae, J.L. and Gulden, T.D., J. Am. Ceram. Soc., 54, 605 (1971).Google Scholar
17 Haubold, A.D., in Medical Progress Through Technology, (Kluwer Academic Publishers, Durdrecht, The Netherlands).Google Scholar