Skip to main content
SpringerLink
Log in

Pure Nickel Fixed Points for Contact Thermometry Calibrations

  • Published:
International Journal of Thermophysics Aims and scope Submit manuscript

Abstract

A robust fixed point using pure nickel contained in an alumina crucible has been developed for thermocouple calibrations. It was observed that a deep supercool often caused the freezing plateau to be short and have a large slope. A procedure for realizing the pure nickel fixed points was developed that reserved a small amount of nickel in the solid state to act as a seed for nucleation of the freeze. This procedure was found to allow freezing plateaus that were suitably long and flat to make them useful for calibrating thermocouples. Using a calibrated Pt/Pd thermocouple, the freezing temperature of nickel was determined to be \(1455.22\,^{\circ }\hbox {C}\) with a \((k = 2)\) uncertainty of \(0.8\,^{\circ }\hbox {C}\).

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. E.R. Woolliams, G. Machin, D.H. Lowe, R. Winkler, Metrologia 43, R11 (2006)

    Article  ADS  Google Scholar 

  2. Y.-G. Kim, K.S. Gam, K.H. Kang, Metrologia 37, 243 (2000)

    Article  ADS  Google Scholar 

  3. Y.-G. Kim, K.S. Gam, K.H. Kang, Metrologia 38, 319 (2001)

    Article  ADS  Google Scholar 

  4. J.V. Pearce, O. Ongrai, G. Machin, S.J. Sweeney, Metrologia 47, L1 (2010)

    Article  ADS  Google Scholar 

  5. M. Sadli, D. del Campo, M. de Podesta, T. Deuzś, G. Failleau, C.J. Elliot, S. Fourre, C. García, J.V. Pearce, in Temperature: Its Measurement and Control in Science and Industry, vol. 8, ed. by C.W. Meyer (American Institute of Physics, Melville, NY, 2013), pp. 1003–1008

  6. S. Mokdad, G. Failleau, T. Deuzś, S. Briaudeau, O. Kozlova, M. Sadli, Presented at TEMPMEKO 2013, Madeira, Portugal, October 2013

  7. A.D.W. Todd, M. Gotoh, D.J. Woods, K.D. Hill, Int. J. Thermophys. 32, 441 (2011)

    Article  ADS  Google Scholar 

  8. G.W. Burns, D.C. Ripple, M. Battuello, Metrologia 35, 761 (1998)

    Article  ADS  Google Scholar 

  9. K.D. Hill, D.J. Gee, in Temperature: Its Measurement and Control in Science and Industry, vol. 8, ed. by C.W. Meyer (American Institute of Physics, Melville, NY, 2013), pp. 520–525

  10. H. Preston-Thomas, Metrologia 27, 107 (1990)

    Article  ADS  Google Scholar 

Download references

Acknowledgments

The authors would like thank Doug Gee for calibrating the thermocouples used in this work.

Author information

Authors and Affiliations

  1. National Research Council Canada, 1200 Montreal Road, Ottawa, ON, K1A 0R6, Canada

    M. Gotoh & A. D. W. Todd

Authors
  1. M. Gotoh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. D. W. Todd
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. D. W. Todd.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gotoh, M., Todd, A.D.W. Pure Nickel Fixed Points for Contact Thermometry Calibrations. Int J Thermophys 35, 1215–1222 (2014). https://doi.org/10.1007/s10765-014-1727-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10765-014-1727-9

Keywords

Search

Navigation