The thermal expansion of aluminium from 0 to 650 C

Abstract

The lattice spacing of aluminium has been measured as a function of temperature by means of a high-temperature Debye-Scherrer X-ray camera. The coefficient of expansion has been deduced. The results are: Temp. 0° 100° 200° 300° 400° 500° 600° 650° C. d 4.0391 4.0486 4.0592 4.0701 4.0820 4.0947 4.1087 4.1162 10⁶ α 22.0 25.4 26.5 27.8 29.9 32.5 35.5 37.2 The systematic and random errors in d are each about 0.0001 A., the error in α from 1 to 2 per cent.