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Measurement Techniques

, Volume 9, Issue 10, pp 1256–1260 | Cite as

Linear thermal expansion of monocrystalline quartz and aluminum oxide

  • A. N. Amatuni
  • E. B. Shevchenko
Article

Summary

  1. 1.

    The temperature expansion coefficients were measured by the absolute method in directions parallel and perpendicular to the crystallographic axis in monocrystalline quartz in the range of 20–550‡C and in monocrystalline aluminum oxide in the range of 20–800‡C. The maximum error in determining the temperature expansion coefficients was ±5·10−8 deg−1.

     
  2. 2.

    Coefficients of the empirical formula (2) were evaluated for monocrystalline quartz and monocrystalline aluminum oxide. The data obtained by means of this formula is in good agreement with the measured values.

     
  3. 3.

    Monocrystalline quartz and aluminum oxide can be used for making specimens employed in checking relative dilatometers.

     

Preference should be given on monocrystalline aluminum oxide, since the expension curve of this material is smoother.

Keywords

Oxide Aluminum Physical Chemistry Quartz Analytical Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Instrument Society of America 1967

Authors and Affiliations

  • A. N. Amatuni
  • E. B. Shevchenko

There are no affiliations available

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