| 释义 |
Definition of eutectic in English: eutecticadjective juːˈtɛktɪkjuˈtɛktɪk Chemistry Relating to or denoting a mixture of substances (in fixed proportions) that melts and freezes at a single temperature that is lower than the melting points of the separate constituents or of any other mixture of them. the eutectic mixture melts at 183°C silver and copper form a eutectic system Example sentencesExamples - A eutectic mixture has a melting point below room temperature; therefore, both local anesthetics exist as a liquid oil rather than as crystals.
- Therefore, in exceptional cases, alloys with less than 2% C can solidify with a eutectic structure and therefore still belong to the family of cast iron.
- The large volume fraction of primary and/or eutectic carbides in their microstructures provides the high hardness needed for crushing and grinding other materials.
- All children were given a patch of eutectic mixture of local anesthetic, because midazolam does not have analgesic properties, and later were given the nasal spray.
- When the temperature has been lowered sufficiently, the remaining liquid solidifies as a eutectic structure of austenite and graphite.
noun juːˈtɛktɪkjuˈtɛktɪk Chemistry 1A eutectic mixture. Example sentencesExamples - When the metastable path is followed, the rich carbon phase in the eutectic is the iron carbide; when the stable solidification path is followed, the rich carbon phase is graphite.
- All the phases formed tend to concentrate at the grain boundaries, in the form of complex eutectics, more or less coupled.
- When the copper exceeds 5%, commercial heat treatment cannot dissolve it and the network of eutectics does not break up.
- Modification of the hypoeutectic alloys is particularly advantageous in sand castings, and can be effectively achieved through the addition of a controlled amount of sodium or strontium, which refines the silicon eutectic.
- The structure is illustrated in Fig.4 from the Cast Iron article which shows the structure of the phosphide eutectic, together with graphite, ferrite and pearlite.
- 1.1
Origin Late 19th century: from Greek eutēktos 'easily melting', from eu 'well, easily' + tēkein 'melt'. Definition of eutectic in US English: eutecticadjectivejuˈtɛktɪkyo͞oˈtektik Chemistry Relating to or denoting a mixture of substances (in fixed proportions) that melts and solidifies at a single temperature that is lower than the melting points of the separate constituents or of any other mixture of them. the eutectic mixture melts at 183°C silver and copper form a eutectic system Example sentencesExamples - The large volume fraction of primary and/or eutectic carbides in their microstructures provides the high hardness needed for crushing and grinding other materials.
- A eutectic mixture has a melting point below room temperature; therefore, both local anesthetics exist as a liquid oil rather than as crystals.
- Therefore, in exceptional cases, alloys with less than 2% C can solidify with a eutectic structure and therefore still belong to the family of cast iron.
- All children were given a patch of eutectic mixture of local anesthetic, because midazolam does not have analgesic properties, and later were given the nasal spray.
- When the temperature has been lowered sufficiently, the remaining liquid solidifies as a eutectic structure of austenite and graphite.
nounjuˈtɛktɪkyo͞oˈtektik Chemistry 1A eutectic mixture. Example sentencesExamples - All the phases formed tend to concentrate at the grain boundaries, in the form of complex eutectics, more or less coupled.
- The structure is illustrated in Fig.4 from the Cast Iron article which shows the structure of the phosphide eutectic, together with graphite, ferrite and pearlite.
- When the metastable path is followed, the rich carbon phase in the eutectic is the iron carbide; when the stable solidification path is followed, the rich carbon phase is graphite.
- When the copper exceeds 5%, commercial heat treatment cannot dissolve it and the network of eutectics does not break up.
- Modification of the hypoeutectic alloys is particularly advantageous in sand castings, and can be effectively achieved through the addition of a controlled amount of sodium or strontium, which refines the silicon eutectic.
- 1.1
Origin Late 19th century: from Greek eutēktos ‘easily melting’, from eu ‘well, easily’ + tēkein ‘melt’. |