Magnetism of Hematite Cylinders: Laser Carving & Effects

  • Thread starter rdnyisaac
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In summary, as long as the hematite is not heated past a certain point, using a laser to carve it should not affect its magnetism. The resulting smaller cylinder and ring should still be magnetic with the poles aligned in the same direction. However, it is unclear if using a laser on the hematite would affect its magnetism, as it depends on keeping the hematite cool during the carving process.
  • #1
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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  • #2
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.
 
  • #3
Would it be possibly safe to use a laser without the magnetism being lost?
 
  • #4
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.
 
  • #5


Great question! The laser carving process may actually have an effect on the magnetic properties of the hematite cylinder. When the laser is used to carve the cylinder, it can generate heat which can potentially alter the alignment of the magnetic domains within the hematite. This may result in a change in the magnetic poles of the cylinder.

If the poles are not affected, then picking up the small cylinder may result in a change in the strength of the magnetic field. The smaller size of the cylinder may also result in a weaker magnetic field compared to the original larger cylinder. However, the magnetic poles should remain the same unless there was significant heat generated during the carving process. It is important to note that the strength of the magnetic field is directly related to the size of the magnet, so a smaller cylinder will have a weaker magnetic field compared to a larger one. Overall, the laser carving process may affect the magnetic properties of the hematite cylinder, but the exact impact will depend on the specific conditions of the carving process.
 

FAQ: Magnetism of Hematite Cylinders: Laser Carving & Effects

1. What is the significance of using hematite cylinders in laser carving for studying magnetism?

Hematite cylinders have a unique crystal structure that allows for their magnetic properties to be easily manipulated by external forces, making them ideal for studying magnetism. Additionally, the use of laser carving allows for precise control over the shape and size of the cylinders, making it easier to observe and measure the effects of magnetism on the material.

2. How does laser carving affect the magnetism of hematite cylinders?

Laser carving involves using a high-powered laser to create controlled defects or patterns on the surface of the hematite cylinders. These defects can alter the crystal structure and disrupt the magnetic properties of the material, leading to changes in its magnetism. By varying the laser carving parameters, scientists can study the effects of different types and degrees of defects on the magnetism of hematite cylinders.

3. What techniques are used to measure the magnetism of hematite cylinders?

There are several techniques used to measure the magnetism of hematite cylinders, including vibrating sample magnetometry (VSM), superconducting quantum interference device (SQUID) magnetometry, and magnetic force microscopy (MFM). These techniques allow scientists to measure the magnetic properties, such as magnetic moment and coercivity, of the cylinders and observe how they change with laser carving and other external factors.

4. How is the magnetism of hematite cylinders affected by temperature?

Temperature can significantly affect the magnetism of hematite cylinders. At low temperatures, the cylinders exhibit strong ferromagnetism, while at high temperatures, they transition to a paramagnetic state. This change in magnetism can be observed and studied by varying the temperature of the cylinders and measuring their magnetic properties using techniques such as VSM or SQUID magnetometry.

5. What are the potential applications of studying the magnetism of hematite cylinders through laser carving?

The study of magnetism in hematite cylinders has many potential applications in various fields. It can help improve our understanding of the fundamental principles of magnetism and aid in the development of new magnetic materials for use in technologies such as data storage, sensors, and energy harvesting. Additionally, the precise control of magnetism through laser carving could have potential applications in nanotechnology and biomedical research.

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