Abstract
IN Arkiv f. Mat., Astron. o. Fysik, vol. 19 B (1925), Messrs. C. Benedicks and P. Sederholm gave a short account of dilatation measurements of invar in which they claim to have found a new property of this well-known material. Raising the temperature of an invar wire quickly by 50°, they find the coefficient of expansion has sensibly the normal value, i.e. 13 × 106, at the first moment of heating. After 3 minutes a contraction sets in, a steady state being reached after 12 minutes.
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ZERNIKE, F. The Anomalous Dilatation of Invar. Nature 118, 662 (1926). https://doi.org/10.1038/118662a0
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DOI: https://doi.org/10.1038/118662a0
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