Eutectic alloy with Strontium & Lithium?

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Discussion Overview

The discussion centers around the search for a eutectic alloy that includes Strontium and Lithium, specifically at or near room temperature. Participants explore the existence of such an alloy and reference phase diagrams related to the Lithium-Strontium system.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the existence of a eutectic alloy containing Strontium and Lithium at room temperature.
  • Another participant questions the basis for believing that such an alloy exists.
  • A participant provides links to binary phase diagrams for the Lithium-Strontium system, detailing concentration ranges and temperature conditions, indicating that the diagrams do not support the existence of a eutectic alloy at room temperature.
  • The same participant suggests conducting personal tests regarding phases in relevant temperature and pressure ranges due to conflicting data in other systems.
  • A later reply acknowledges a misunderstanding regarding the properties of the Lithium-Strontium system as an alternative to Mercury and Galinstan.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the existence of a eutectic alloy of Strontium and Lithium at room temperature, with some expressing skepticism based on available phase diagrams and others indicating a prior belief in its existence.

Contextual Notes

The discussion highlights limitations in the available data, including the temperature ranges of the referenced phase diagrams and the potential for conflicting information in other systems.

Chris Wallin
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Hello! I am looking for a eutectic (liquid) alloy that includes Strontium and Lithium at or near room temperature. Does anyone have an idea of where to look for it? Thanks!
 
Do you have any reason to believe that such an alloy exists?
 
Chris Wallin said:
Hello! I am looking for a eutectic (liquid) alloy that includes Strontium and Lithium at or near room temperature. Does anyone have an idea of where to look for it? Thanks!
If one is looking for a binary phase diagram, one would be able to find Sr-Li phase diagram through ASM International in their alloy phase diagram database.

Lithium-Strontium Binary Alloy Phase Diagram (based on 1994 Hubberstey P.)
http://www.asminternational.org/search/-/journal_content/56/10192/APD-LI-SR-100212/PUBLICATION

Diagram Type: binary phase diagram
Concentration range: partial composition; 0-16 at.% Sr
Temperature: 120.0 - 190.0 °C
Nature of investigation: experimental
Source: ASM Alloy Phase Diagrams Center, 2007; data from Hubberstey P., Phase Relationships in Lithium-Alkaline Earth Metal Systems, J. Phase Equilib., Vol. 15, 1994, p 473-478

Reviewed under the auspices of the Alloy Phase Diagram International Commission.
Element concentrations are presented in atomic percent.
Document includes crystal data for the Lithium-Strontium system, allotropic transformation data, and related references.

Lithium-Strontium Binary Alloy Phase Diagram (based on 1990 Bale C.W.)
http://www.asminternational.org/search/-/journal_content/56/10192/APD-LI-SR-901526/PUBLICATION

Diagram Type: binary phase diagram
Concentration range: full composition; 0-100 at.% Sr
Temperature: 100.0 - 800.0 °C
Nature of investigation: calculated
Source: ASM Alloy Phase Diagrams Center, 2007; data from Bale C.W., Li-Sr (Lithium-Strontium), Binary Alloy Phase Diagrams, II Ed., Ed. T.B. Massalski, Vol. 3, 1990, p 2471-2472

Reviewed under the auspices of the Alloy Phase Diagram International Commission.
Element concentrations are presented in atomic percent.
Document includes crystal data for the Lithium-Strontium system, allotropic transformation data, and related references.

I recommend performing one's own test with regard to phases in the temperature and pressure ranges of interest, since I have found conflicting maps in other systems.
 
Thanks for the inputs. We were looking for an eutectic alloy alternative to Mercury and Galinstan at room temperature and obviously were misled into thinking the Lithium-Strontium system had such properties.
 

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