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metastable

/met-uh-stey-buhl, met-uh-stey-/US // ˈmɛt əˌsteɪ bəl, ˌmɛt əˈsteɪ- //UK // (ˌmɛtəˈsteɪbəl) physics //

可变性,流动性,可转移性,可转移的

Definitions

adj.形容词 adjective
  1. 1
    • : Metallurgy. chemically unstable in the absence of certain conditions that would induce stability, but not liable to spontaneous transformation.
    • : Also labile. Physics, Chemistry. pertaining to a body or system existing at an energy level above that of a more stable state and requiring the addition of a small amount of energy to induce a transition to the more stable state.

Examples

  • The result suggests that at high pressure diamond is what scientists call metastable.

  • Diamond was already known to be metastable at low pressures.

  • X-ray measurements of the material’s structure revealed that diamond persisted, suggesting it is metastable under extreme pressure.

  • To this fact van't Hoff attributes the great permanence of many really unstable (or metastable) carbon compounds.

  • At any point outside this area, monoclinic sulphur can exist only in a metastable condition.

  • This law explains the formation of the metastable forms of monotropic substances, which would otherwise not be obtainable.

  • Two of these solutions, however, would be metastable and supersaturated with respect to the decahydrate.

  • The dotted portions of the curves represent metastable equilibria.