Magnetism of Hematite Cylinders: Laser Carving & Effects

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    Magnetism
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Discussion Overview

The discussion revolves around the effects of laser carving on the magnetism of hematite cylinders, specifically addressing whether the process alters the magnetic poles and the implications for the resulting smaller cylinder and ring. The scope includes theoretical considerations of magnetism and practical concerns related to laser use.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests that as long as the hematite is not heated beyond a certain threshold, it should retain its magnetism after being carved, with the poles remaining aligned.
  • Another participant questions the safety of using a laser without losing magnetism, expressing uncertainty about the effects of laser use on the material.
  • A repeated concern is raised about maintaining the temperature of the hematite during the laser process to ensure it retains its magnetic properties.

Areas of Agreement / Disagreement

Participants express differing levels of certainty regarding the impact of laser carving on the magnetism of hematite, with no consensus reached on the safety or effects of the process.

Contextual Notes

There are limitations regarding the specific temperature thresholds for hematite and the precise conditions under which magnetism is retained, which remain unresolved in the discussion.

Who May Find This Useful

This discussion may be of interest to those exploring the properties of magnetized materials, laser applications in material science, and the effects of thermal processes on magnetism.

rdnyisaac
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Scenario:
You have a small, magnetized, cylinder-shaped hematite. The positive pole is on top and the negative pole is on the bottom. You took a laser to carve a new, smaller cylinder. After you're done carving, you are left with a smaller cylinder and a ring.

Here are my questions:

Will the laser mess with the poles?

If it doesn't mess with the poles, what would happen it you pickup the small cylinder now?
 
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As long as the hematite isn't heated past a certain point it should retain it's magnetism after being carved. Both the cylinder and ring should still be magnetic with the poles aligned in the same direction.
 
Would it be possibly safe to use a laser without the magnetism being lost?
 
rdnyisaac said:
Would it be possibly safe to use a laser without the magnetism being lost?

I don't know enough about using lasers to answer that. I would think that as long as you kept the hematite cool you would be fine.
 

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