Dielectric breakdown by electrically induced chemical decomposition

Abstract

Experimental observations and our interpretation of electrical current instabilities in single crystals of ionic metal azides are described here. The subsequent insulation breakdown occurs over wide ranges of fields and delay times. The fields, at room temperature, are of the order MV m−1 or lower, and are 2–3 orders of magnitude smaller than the usual dielectric strength found in a homogeneous bulk solid. The breakdown is strongly time dependent and the delay after the application of the field can be up to a few days. We suggest for this low-field long-delay breakdown an ‘electrochemical’ mechanism which seems not to have been envisaged before.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Thoma, P. J. appl. Phys. 47, 5304–5312 (1976).

    ADS  CAS  Article  Google Scholar 

  2. 2

    Narayan, J., Weeks, R. A. & Sonder, E. J. appl. Phys. 49, 5977–5981 (1978).

    ADS  CAS  Article  Google Scholar 

  3. 3

    Young, D. A. Br. J. appl. Phys. 15, 499–508 (1964).

    ADS  CAS  Article  Google Scholar 

  4. 4

    Zarkharov, Yu. A. & Kabanov, A. A., Russ. J. phys. Chem. 38, 1567–1570 (1964).

    Google Scholar 

  5. 5

    Tang, T. B. thesis, Univ. Cambridge(1979).

  6. 6

    Andersson, T. J. Phys. D9, 973 (1976).

    ADS  CAS  Google Scholar 

  7. 7

    Morris, J. E. & Coutts, T. J. Thin Solid Films 47, 3 (1977).

    ADS  Article  Google Scholar 

  8. 8

    Tang, T. B., Patel, R. G. & Chaudhri, M. M. 1976 A. Rep. Conf. Electrical Insulators and Dielectric. Phenomena, 263–268 (Natn Acad. Sci., Washington, D.C., 1976).

  9. 9

    Tang, T. B. & Chaudhri, M. M. Proc. R. Soc. (in the press).

  10. 10

    Montagu-Pollock, H. M. Proc. R. Soc. A269, 219–232 (1962).

    ADS  CAS  Google Scholar 

  11. 11

    Sukhushin, Yu. N., Zakharov, Yu. A. & Ivanov, F. I. High Energy Chem. 7, 231–237 (1973).

    Google Scholar 

  12. 12

    Avrami, L., Blais, M., Downs, D. & Gora, T. Picatinny Arsenal Tech. Rep. 4991 (Dover, New Jersey, 1976).

  13. 13

    Chaudhri, M. M. Nature phys. Sci. 242, 110–111 (1973).

    ADS  CAS  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Tang, T., Chaudhri, M. Dielectric breakdown by electrically induced chemical decomposition. Nature 282, 54–55 (1979). https://doi.org/10.1038/282054a0

Download citation

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.