Paper Title:
The Effect of Reoxidation on Thermal Shock Resistance of SrTiO3-Based Varistors
  Abstract

The fabrication processes of SrTiO3-based varistors were investigated to obtain highly thermal-shock-resistant devices. It has been found that the reoxidation conditions are strongly related to the thermal cracking ratio (%) of the varistors. A large compressive stress was generated on the varistor surface by reoxidation, consequent upon the lattice parameter difference between its surface portion and its internal portion. This residual stress on the surface is thought to be the key factor of the achieved thermal-shock-resistance.

  Info
Periodical
Key Engineering Materials (Volumes 421-422)
Edited by
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
Pages
529-532
DOI
10.4028/www.scientific.net/KEM.421-422.529
Citation
A. Hitomi, N. Chida, M. Ogasawara, D. Matsuoka, "The Effect of Reoxidation on Thermal Shock Resistance of SrTiO3-Based Varistors", Key Engineering Materials, Vols. 421-422, pp. 529-532, 2010
Online since
December 2009
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Price
$32.00
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