Identifying magnetic materails

  • Thread starter Max Eilerson
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In summary, based on the basic rules outlined in the notes, it can be determined that cold rolled steel and Monimax are ferromagnets, Oxygen is a paramagnet, Ice is a diamagnet, and Helium is a superconductor. However, additional research is needed to confirm the magnetic properties of Manganese and Chromium.
  • #1
Max Eilerson
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Hi,

I'm just given the magnetic susceptibiliy of materails [tex]\chi[/tex], for which I'm supposed to identify what class of magnetic materail they belong too. Some basic rules are listed in the notes.

Ferromagnets [tex]\chi > 0, u >> 1[/tex]

cold rolled steel 2250
Monimax 669


Paramagnets [tex]\chi > 0, u > 1[/tex]

Oxygen (liquid at -219 C) 3.9E-4
Manganese 1.0E-6
Chorium 4.5E-6

Diamagnet ([tex]\chi < 0, u < 1[/tex]

Ice - 8.1E-6 (I know ice XI is ferrielectric)
Helium - 0.58E-6

However I looked on wiki and it appears Chormium is antiferromagnetic and manganese is non-magnetic. I'm fairly sure sure helium is a superconductor. This is question 1, on an easy work sheet so I'm not sure what to answer.
 
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  • #2
From the values you have provided, it looks like cold rolled steel and Monimax are ferromagnets, Oxygen is a paramagnet, Ice is a diamagnet, and Helium is a superconductor. However, since you have noted that Chrome is antiferromagnetic and Manganese is non-magnetic, it would be best to double check with other sources before making your final decision.
 
  • #3


I would recommend double checking your sources to ensure accuracy before making any conclusions. While Wikipedia can be a useful starting point, it is important to verify information from multiple reliable sources. Additionally, the magnetic susceptibility of a material can vary depending on factors such as temperature and applied magnetic field, so it is important to consider these factors as well. If you are unsure about the classification of a material, it may be helpful to consult with a more experienced scientist or conduct further research to confirm your findings.
 

1. What are magnetic materials?

Magnetic materials are substances that have the ability to generate a magnetic field. This can be due to the arrangement of their atoms and the presence of magnetic domains.

2. How can I identify magnetic materials?

One way to identify magnetic materials is by using a magnet. If the material is attracted to the magnet, it is most likely a magnetic material. Another way is to use a compass, as it will align with the magnetic field of the material.

3. What are some common examples of magnetic materials?

Some common examples of magnetic materials include iron, nickel, cobalt, and certain types of steel. Magnetite, a naturally occurring mineral, is also a magnetic material.

4. What are the uses of magnetic materials?

Magnetic materials have a wide range of uses, including in electronics, transportation, and medical devices. They are also used in generators, motors, and speakers.

5. Can non-metallic materials be magnetic?

Yes, non-metallic materials can be magnetic. Some examples include ceramic magnets, which are made from a combination of iron oxide and ceramic materials, and rare earth magnets, which are made from alloys of rare earth elements and other metals.

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