eutectic

/ju:'tektik/

Thân thiện

A scientist observes the formation of a eutectic in a laboratory beaker.

Definition

1. Noun:
   • A mixture of substances having a minimum melting point: In chemistry and materials science, a "eutectic" is a specific mixture of two or more substances that, at a certain ratio, has a lower melting point than that of any of the individual components or any other mixture of them. This point is the "eutectic point."

Usage

• The term "eutectic" is primarily used as a noun to describe the mixture itself or as an adjective to describe properties related to such a mixture (e.g., eutectic composition, eutectic temperature).
• It is a technical term common in fields like metallurgy, chemistry, geology, and materials engineering.

Examples

• Noun:
  • The solder used in electronics is often a eutectic of tin and lead.
  • The formation of a eutectic allows the alloy to melt at a temperature lower than that of its constituent metals.

Advanced Usage

• "Eutectic point": The specific temperature and composition at which a eutectic mixture melts or solidifies.
  • The eutectic point of the salt-water system is at -21.1°C.
• "Eutectic system": A system of materials that exhibits eutectic behavior.
  • Studying the phase diagram is essential to understand the eutectic system.

Variants and Related Words

• Eutectoid (adj/noun): Similar to eutectic but referring to a solid-state transformation, typically in steel.
  • Pearlite is a eutectoid mixture of ferrite and cementite in steel.

Synonyms

• Minimum-melting-point mixture: A descriptive synonym.
• Eutectic mixture: A more explicit term for the same concept.

Related Phrases/Compounds

• Eutectic temperature: The melting/freezing point of the eutectic mixture.
• Eutectic composition: The precise ratio of components in a eutectic mixture.
• Eutectic solidification: The process by which a eutectic liquid transforms into a solid mixture of two or more phases.

Học thuật

Noun

1. a mixture of substances having a minimum melting point