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Cobalt is ferromagnetic, but considerably less so than iron. Alloys of cobalt such as aluminium, nickel, cobalt and iron, known as Alnico, and of samarium and cobalt (samarium-cobalt magnet) are commonly used to make high quality permanent magnets.
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∙ 12y ago
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∙ 15y agoYes. Cobalt has ferromagnetic properties, and it is used in the preparation of magnetic, wear-resistant, and high-strength alloys.
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∙ 14y agoIt shouldn't be under normal circumstances, unless it has undergone a ferromagnetic process.
Wiki User
∙ 12y agoYes. Nickel, iron and cobalt are the only elements to be attracted to magnets under normal circumstances.
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∙ 12y agoyes it is Major Loser
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∙ 14y agoCobalt is a ferromagnetic metal.
Wiki User
∙ 11y agoNo, it is a non-magnetic material
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∙ 10y agoCobalt is a hard magnetic material
Francisco Evia
yes
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∙ 11y agoyea
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What are hard and soft magnets?
Hard magnets are those which require a high magnetic field so as to be magnetized. Soft magnets are those which acquire high magnetic flux when a little magnetic force is applied onto them.
Why is it important to use a soft magnetic material as the core of a solenoid?
Soft iron is having very low hysteresis loss. So it would be good to use it as core.
Is plastic soft?
Vinyl can be as hard or soft as you want. You can make soft vinyl upholstery, or vinyl drain pipe so hard you can park a car on it without having it break.
What is supermalloy?
Supermalloy is a metal alloy that is 79% nickel, 5% molybdenum and 16% iron. It is used in mechanical and electronic components like hard drives. It is disigned to have a very high magnetic permeability and a low coercivity, meaning that magnetic fields can flow though it very easily. It is also a soft magnetic material, meaning that it doesn't stay magnetized itself once the magnetic field is removed.
Why is soft material is preferred to make electomagnet than hard?
I assume you mean "soft iron" ... so that it quickly loses its magnetism when the current flow stops.
What are hard and soft materials?
The magnetic materials which can magnetise and de-magnetise easily are called "soft magnetic materials" example:-ferrites,iron-cobalt alloy. The magnetic materials which cannot magnetise and de-magnetise easily are called "hard magnetic materials" example:-aluminium(al),nickel-cobalt alloy.
What is the difference between soft and hard magnets?
A soft magnet's magnetic field can be broken easily. A hard magnet's magnetic field can not be broken easily.
What are hard and soft magnets?
Hard magnets are those which require a high magnetic field so as to be magnetized. Soft magnets are those which acquire high magnetic flux when a little magnetic force is applied onto them.
Why is iron a soft magnetic material?
Because pure iron can gain or lose a magnetic field very quickly. A hard magnet (certain steels) will hold its field indefinitely (unless heated to too high a temp).
What are hard and soft magnetic materials?
Colour: black, opaque. Streak: black. Lustre: metallic or dull. Cleavage: none. Hardness: 5.5-6.5. Specific Gravity: 5.2. Its diagnostic feature is that it is highly magnetic.
What is the difference between hard and soft material?
Materials which retain their magnetism and are difficult to demagnetize are called hard magnetic materials. These materials retain their magnetism even after the removal of the applied magnetic field. Hence these materials are used for making permanent magnets. In permanent magnets the movement of the domain wall is prevented. They are prepared by heating the magnetic materials to the required temperature and then quenching them. Impurities increase the strength of hard magnetic materials. Soft magnetic materials are easy to magnetize and demagnetize. These materials are used for making temporary magnets. The domain wall movement is easy. Hence they are easy to magnetize. By annealing the cold worked material, the dislocation density is reduced and the domain wall movement is made easier. Soft magnetic materials should not possess any void and its structure should be homogeneous so that the materials are not affected by impurities.
Is cold rolled mild steel magnetic?
Yes, all steels are magnetic. The difference is in the material being a "soft" or a "hard" magnetic material.A cold rolled mild steel, such as 1018 steel, is considered a "soft" magnetic material.I recommend reading "ASM Ready Reference: Electrical and Magnetic Properties of Metals" by Charles Moosbrugger and Fran Cverna for reference details and information. Particularly the brief section of Chapter 7 would be most helpful to you, with values in Chapter 8.
What is the difference between hard and soft magnetic materials?
Materials which retain their magnetism and are difficult to demagnetize are called hard magnetic materials. These materials retain their magnetism even after the removal of the applied magnetic field. Hence these materials are used for making permanent magnets. In permanent magnets the movement of the domain wall is prevented. They are prepared by heating the magnetic materials to the required temperature and then quenching them. Impurities increase the strength of hard magnetic materials. Soft magnetic materials are easy to magnetize and demagnetize. These materials are used for making temporary magnets. The domain wall movement is easy. Hence they are easy to magnetize. By annealing the cold worked material, the dislocation density is reduced and the domain wall movement is made easier. Soft magnetic materials should not possess any void and its structure should be homogeneous so that the materials are not affected by impurities.
Why is it important to use a soft magnetic material as the core of a solenoid?
Soft iron is having very low hysteresis loss. So it would be good to use it as core.
What are examples of hard copy and soft copy?
hend riting to peper is hard copy and computers document file is soft copy
Is plastic soft?
Vinyl can be as hard or soft as you want. You can make soft vinyl upholstery, or vinyl drain pipe so hard you can park a car on it without having it break.
Is cobalt hard?
It is soft in nature . Because of its dramatic color change and the ease of the hydration/dehydration reaction, "cobalt chloride" is used as an indicator for water in desiccants.Its formula is CoCl2.6H2Ofrom: Shilo Kim JohnsonRead more: Is_cobalt_chloride_hard_or_soft
