Invar
Invar, also known generically as FeNi36 (64FeNi in the US), is a nickel iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α). The name, Invar, comes from the word invariable, referring to its lack of expansion or contraction with temperature changes.
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Famous quotes containing the word invar:
“I sat on cushioned otter-skin:
My word was law from Ith to Emain,
And shook at Invar Amargin
The hearts of the world-troubling seamen,
And drove tumult and war away....”
—William Butler Yeats (1865–1939)
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