AN apparatus for calibrating thermocouples from 4 to 300Β°K is described. It has been used to obtain a detailed calibration table of the thermoelectric power and potential difference for constantan, gold-cobalt (gold-2.1 atomic per cent cobalt), and 'normal' silver (silver-0.37 atomic per cent gold)
Thermal Expansion at Low Temperatures
β Scribed by WHITE, GUY K.
- Book ID
- 109610975
- Publisher
- Nature Publishing Group
- Year
- 1960
- Tongue
- English
- Weight
- 333 KB
- Volume
- 187
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/187927b0
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π SIMILAR VOLUMES
In this paper the authors describe their work on two 99.99 per cent pure samples of indium at temperatures down to 1"5 Β° K. The expansion characteristics have been determined to this temperature with three points in mind: first the effect of anisotropy ; second the electronic contribution and its co
The linear thermal expansion coefficient, a, has been measured from 2 to 32 K and from 55 to 90 K for a machineable glass-ceramic, an "ultra-low expansion" titanium silicate glass (Coming ULE), and ceramic glasses (Cer-Vit and Zerodur), and for glassy carbon, a is negative for the ultra-low expansio