Nonlinear conductive liquid metal

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Discussion Overview

The discussion centers around the existence of nonlinear conductive liquid metals, specifically focusing on electrical conductivity and how it may change over time, particularly in relation to relaxation times. Participants explore theoretical and experimental aspects of this topic.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the existence of nonlinear conductive liquid metals and their locations.
  • Another participant clarifies whether the inquiry pertains to thermal or electrical conductivity, leading to a focus on electrical conductivity.
  • There is a suggestion that nonlinear conductance may depend on parameters like time, specifically mentioning relaxation times in the range of 1-10 ms.
  • A participant mentions the "skin effect" in metal conductors at higher frequencies, proposing that molten metals might exhibit similar behavior, particularly with mercury (Hg).
  • Another participant suggests that doping a metal or liquid metal with certain elements could potentially achieve a desired relaxation time, implying the possibility of creating alloys for this purpose.

Areas of Agreement / Disagreement

The discussion does not reach a consensus on the existence or characteristics of nonlinear conductive liquid metals, with multiple competing views and uncertainties remaining among participants.

Contextual Notes

Participants express varying levels of understanding regarding the topic, with some references to specific studies that may not directly address the properties of metals. There are unresolved questions about the definitions and implications of nonlinear conductivity in this context.

samjesse
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Hi

Does nonlinear conductive liquid metal exist? Which and where?

thx
 
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Thermal or electrical conductivity?
 
Electrical.
 
Do you mean a material whose conductance changes as a function of a parameter (like temperature)?
 
yes. as a function of time. i.e. the relaxation time of 1-10ms or something like that.
I was reading this but it is over my head.
http://www.ims.uconn.edu/images/eirc/eimagnonlin_pub.pdf
 
Last edited:
As a function of time? Can't help there.

I was going to point out that metal conductors are subject to "skin effect" at higher frequencies, where the current restricts itself to an outer region, causing R to show an increase at some range of f. I surmise that in a molten metal it would behave similarly; could investigate using Hg.
 
samjesse said:
yes. as a function of time. i.e. the relaxation time of 1-10ms or something like that.
I was reading this but it is over my head.
http://www.ims.uconn.edu/images/eirc/eimagnonlin_pub.pdf
There's nothing dealing with metal there. It's the plastic insulation they investigated.
 
Maybe if a metal or "liquid metal" is doped with the purpose of achieving a certain relaxation time! i.e. Alloy of some sort.
 

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