Abstract
THE subjoined table appears to indicate that the mechanical “hardness” of a solid is fairly closely related to its thermal expansion coefficient. There are exceptions like “invar,” and for various reasons attention should be directed more to the scope of the relationship than to particular discordances between the hardness figures.
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INNES, J. The Mechanics of Solidity. Nature 106, 377 (1920). https://doi.org/10.1038/106377a0
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DOI: https://doi.org/10.1038/106377a0
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