Galvanized steel
Galvanized steel is just steel that has gone through a galvanizing process. This process will coat the steel with a very thin layer of zinc. The resulting material is a highly durable one, which is also resistant to rust and corrosion.
Once applied to the carbon steel, this thin coat of zinc can act as a cathode. The zinc will give up electrons more readily than iron would. As a result, galvanized steel is magnetic simply because the base is made of steel.
Graphene oxide
Graphene oxide is a compound of magnetic nanoparticles. This material has unique chemical and physical features, including nano size and large surface area. Because it is paramagnetic, the magnetic capabilities are mild and reduced.
While this material is primarily non-magnetic, scientists have discovered that graphene oxide will develop rare forms of magnetism. It happens when multiple sheets are stacked and twisted.
| Industry | Function |
| Biomedical | Used as a material for drug delivery and biosensing. It’s because of its high biocompatibility and surface area. |
| Composites | Used as a reinforcement material in polymers and ceramics. It improves strength and stiffness. |
| Energy Storage | Used as a material for supercapacitors and lithium-ion batteries. It increases energy storage capacity and improves performance. |
| Environmental Applications | Used as a material for environmental remediation. It helps with the removal of pollutants from water and air. |
| Water Purification | Used as a material for water filtration and purification. |
Pyrite
Because this mineral contains iron to a small degree, pyrite is weakly magnetic. The magnetic features can be increased when pH value and temperatures are adjusted, producing the well-known magnetized pyrite.
In today’s world, pyrite is used for various purposes. It can create a spark when hit against other materials, making it a source of ignition for weapons. Some manufacturers use pyrite to produce lithium batteries, mineral detectors, or paper.
Uses:
- Lawn conditioner
- Water treatment
- Moss killer
Cobalt
It has been used for its magnetic properties for a long time. It is a ferromagnetic metal with powerful features of magnetism, just like iron. This material can be used to create a range of soft and hard magnets.
Cobalt-based magnets have a higher saturation point and can also be used in high-temperature environments. Wind turbines, MRI machines, and hard disks are often manufactured with cobalt alloys.
Graphite
After comprehensive study and experiments, scientists have agreed that pure graphite can never be ferromagnetic. They discovered that each carbon atom has six electrons, three of which will spin pointing down. The other three will point down.
It defines the carbon atom with a zero magnetic moment. That is why graphite is a diamagnet material that features non-magnetic properties.
Magnesium
While magnesium is not magnetic, it has various interesting properties that make it essential in multiple applications. This material can create alloys with other metals and is also effective at radiation absorption.
In combination with copper, an alloy resistant to corrosion is obtained. When combined with aluminum, the resulting alloy is lightweight and highly durable.
Because it does not have an unpaired electron in its outer layer, magnesium is not magnetic. The effect of magnetism will be created only when an atom has at least one unpaired electron in the outer layer, which magnesium misses.
Pewter
While it is not as common as iron or steel, pewter is an alloy made of tin and lead. This alloy has been used to create decorative objects and containers for a long time. Unfortunately, it is one of the first metals affected by radioactivity.
This metal will turn black when exposed to radiation, and its surface will get shiny. Some alloys that contain pewter can be magnetized, but this metal does not feature magnetic capabilities in its pure form. For this reason, pewter can be categorized as a ferromagnetic material.
