Key points are not available for this paper at this time.
The coefficient of thermal expansion is measured at intervals of 2. 5^ between 200^ and 500^ for single and polycrystalline specimens of nickel of varying known degrees of purity. The data yield the value 3. 240. 1510^-4 for the ferromagnetic change in volume per unit volume of pure nickel.
Clarke Williams (1934) studied this question.