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单词 eutectoid
释义

eutectoid

enUK

eu·tec·toid

E0244450 (yo͞o-tĕk′toid′)adj. Of or relating to a eutectic mixture or alloy.n. A eutectic mixture or alloy.

eutectoid

(juːˈtɛktɔɪd) n (Chemistry) a mixture of substances similar to a eutectic, but forming two or three constituents from a solid instead of from a meltadj (Chemistry) concerned with or suitable for eutectoid mixtures[C20: from eutect(ic) + -oid]

eu•tec•toid

(yuˈtɛk tɔɪd)

adj. 1. resembling a eutectic. n. 2. a eutectoid alloy. [1900–05]

Eutectoid

enUK

eutectoid

[yü′tek‚tȯid] (metallurgy) A mixture of phases whose composition is determined by the eutectoid point in the solid region of an equilibrium diagram and whose constituents are formed by the eutectoid reaction. (physical chemistry) The point in an equilibrium diagram for a solid solution at which the solution on cooling is converted to a mixture of solids.

Eutectoid

 

a eutectic that forms when a solid solution cools. In a phase diagram, a eutectoid point corresponds to the equilibrium of a solid solution whose phases have dissociated; the number of phases is equal to the number of components. A eutectoid point is analogous to a eutectic point in the case of the solidification of a liquid solution. An example of a eutectoid is pearlite in steel.

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