Skip to main content
Log in

Effect of transient stress on acoustic emission behaviour during firing of dental porcelain

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Acoustic emission activity was measured in the glass transition range of dental porcelain during firing. Transient and residual stresses in porcelain during cooling from a temperature higher than porcelain sag point and during re-heating of the tempered porcelain were calculated by computer simulation using a viscoelastic stress analysis. The detected acoustic emission event was discussed with the relative rules of the simulated transient stresses. High acoustic emission activity was detected at the temperature where the internal stress faded away for heating and build up for cooling. The low-level acoustic emission pulses were only detected in the following conditions: (1) in the temperature range where porcelain behaved like an elastic solid; (2) at temperatures higher than the deformation point of porcelain; (3) with a re-heating process of the porcelain without tempered stress. From these results, it was concluded that elastic energy is released related to transient stress in porcelain during viscoelastic deformation and can be detected by the acoustic emission method. The acoustic emission method is considered to be helpful in non-destructive testing in order to understand transient stress due to viscoelastic deformation of glassy materials in heat treatment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. K. Sakamaki, K. Yoshida, H. Takagi andM. Yoshida,JSME Int. J. 33 (1990) 326.

    Google Scholar 

  2. K. Asaoka andJ. A. Tesk,Dent. Mater. J. 8 (1989) 9.

    Google Scholar 

  3. Idem, J. Dent. Res. 69 (1990) 463.

    Google Scholar 

  4. H. Käse, J. A. Tesk andE. D. Case,J. Mater. Sci. 20 (1985) 524.

    Google Scholar 

  5. K. Asaoka, M. Kon andN. Kuwayama,Dent. Mater. J. 9 (1990) 193.

    Google Scholar 

  6. K. Asaoka, N. Kuwayama andJ. A. Tesk,J. Dent. Res., to be published.

  7. H. S. Carslaw andJ. C. Jaeger, “Conduction of Heat in Solids” (Oxford University Press, Oxford, 1959) p. 104.

    Google Scholar 

  8. V. Piddock,J. Dent. 17 (1989) 290.

    Google Scholar 

  9. C. T. Moynihan, A. J. Easteal, J. Wilder andJ. Tucker,J. Phys. Chem. 78 (1974) 2673.

    Google Scholar 

  10. F. A. McLintock andA. S. Argon, “Mechanical Behaviour of Materials” (Addison-Wesley, Reading, MA, 1966) p. 243.

    Google Scholar 

  11. K. Asaoka andJ. A. Tesk,Dent. Mater. 7 (1991) 30.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Asaoka, K., Yoshida, K. & Sakamaki, K. Effect of transient stress on acoustic emission behaviour during firing of dental porcelain. J Mater Sci 27, 3118–3122 (1992). https://doi.org/10.1007/BF01154127

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01154127

Keywords

Navigation