How to create a material with specific characteristics

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Discussion Overview

The discussion revolves around the challenge of creating a material that possesses specific characteristics: an electrical conductivity of approximately 10 S/m and a magnetic permeability of 7500. Participants explore potential materials and combinations, focusing on the theoretical and practical aspects of material synthesis.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants inquire about the state of the material (liquid, solid, gas, metal, pure, alloy) to better understand the requirements.
  • One participant suggests that an alloy of the right materials in appropriate amounts could yield the desired properties.
  • Another participant discusses the concept of composites as effective media, noting that effective medium theories can predict properties based on volume filling factors, but highlights the difficulty of tailoring two properties simultaneously.
  • Some ferrites are proposed as potential candidates for achieving the specified electrical conductivity and magnetic permeability values.
  • Iron is mentioned as a significant element that may need to be included, although it may not suffice on its own.
  • A participant emphasizes the complexity of synthesizing materials with tailored physical characteristics and the importance of finding suitable manufacturing processes.
  • MnZn ferrites are specifically suggested as possibly suitable materials for the desired characteristics.

Areas of Agreement / Disagreement

Participants express various viewpoints on the types of materials and methods that could be used to achieve the desired properties. There is no consensus on a specific solution or approach, and multiple competing ideas remain present in the discussion.

Contextual Notes

The discussion highlights the challenges involved in synthesizing materials with specific properties, including the need for effective combinations and manufacturing processes. There are unresolved questions regarding the feasibility of achieving the desired characteristics simultaneously.

Sveral
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Hi,
could anyone tell me, if they have any ideas as to, what materials could be combined to produce a material with two characteristics- electrical conductivity of about 10 S/m and magnetic permeability of 7500.
Thanks in advance.
 
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What are you looking for? Liquid, Solid, Gas, Metal, Pure, Alloy? If you had an alloy of the right materials in the right amounts the values would eventually correlate with what you want.
 
Cloud Variable said:
What are you looking for? Liquid, Solid, Gas, Metal, Pure, Alloy? If you had an alloy of the right materials in the right amounts the values would eventually correlate with what you want.
Good question, my bad there. A solid definitely, but that`s about it, when it comes to the state of the material.
 
Sveral said:
... what materials could be combined to produce a material with two characteristics- electrical conductivity of about 10 S/m and magnetic permeability of 7500...

  • A composite can be considered as a so-called effective medium with homogeneous material properties (e.g., effective conductivity and effective permeability). "Effective medium theories" allow to predict the effective properties as a function of the volume filling factors of the dispersed material particles. Maybe, it will be difficult to tailor two properties simultaneously.
  • On the other hand, it's possible that some ferrites have roughly these values for the electrical conductivity and magnetic permeability.
 
Last edited by a moderator:
Lord Jestocost said:
  • A composite can be considered as a so-called effective medium with homogeneous material properties (e.g., effective conductivity and effective permeability). "Effective medium theories" allow to predict the effective properties as a function of the volume filling factors of the dispersed material particles. Maybe, it will be difficult to tailor two properties simultaneously.
  • On the other hand, it's possible that some ferrites have roughly these values for the electrical conductivity and magnetic permeability.
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To reflect on composites (https://en.wikipedia.org/wiki/Composite_material) when one wants to produce materials with tailored physical characteristics is generally a good idea. Nevertheless, it can become - both scientifically and technologically - a challenging task to synthesize a material with specific properties by this means. That means, one needs to do more than looking for constituent materials which might – in combination - produce a material with characteristics different from the individual components. One has also to find a manufacturing process to finally “realize” such a combination.

Regarding generally a material with two characteristics- electrical conductivity of about 10 S/m and magnetic permeability of 7500: I suppose that MnZn ferrites (MnaZn(1-a)Fe2O4) might be suitable.
 

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