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Invar

At the beginning of this century, Charles Edouard Guillaume, in the course of research into alloys suitable for standards of length, discovered that a steel alloy containing 36 percent of nickel possessed a practically zero coefficient of expansion, some samples even having a negative coefficient. Guillaume suggested the use of this alloy, which he called 'invar', for the pendulum rods in clocks.

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  • Part of Speech: noun
  • Synonym(s):
  • Blossary:
  • Industry/Domain: Chronometry
  • Category: Clock
  • Company:
  • Product:
  • Acronym-Abbreviation:
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