Temperature Oscillations of Alternating-Current-Heated Thin Filaments in Ceramic Fiber Production

Authors

Hendrik J. Viljoen, University of Nebraska-LincolnFollow
Vladimir Hlavacek, Laboratory for ceramic and Reaction Engineering, Department of chemical Engineering, State University of New York at Buffalo, Amherst, New York-14260

Date of this Version

3-1-1992

Comments

This is an electronic version of as article published in Journal of American Ceramic Society, Vol.75 No.7, Pages 1997-98, 1992,Copyright © 1992, American Ceramic Society. This article is available at the publishers site. Click here to reach American Ceramic Society.

Abstract

Resistively heated filaments are used to manufacture ceramic fibers. When an ac power source is used for heating, the temperature of the filament oscillates. These oscillations influence the deposition rate on the surface of the filament. An analysis of this problem is presented, and it is also shown that these oscillatory effects diminish as the filament gauge increases. The analysis can help to decide whether an ac or a dc power source should be used.