Can we really use rare earth magnets outdoors?

Rare magnets are made of compounds fitting in with the lanthanide gathering of components. Samarium (Sm) and Neodymium (Nd) are two of the most far reaching Lanthanide components utilized as a part of the handling of rare magnets. Lanthanide components are ferromagnetic metals. This implies that they the ability to be charged much the same as iron. Be that as it may, their curie temperatures (the temperature at which they lose their attraction) are generally underneath the ordinary room temperature. This clarifies why rare magnets are not suitable for outside utilization. In most cases, open air temperatures are typically higher than room temperatures. This prompts demagnetization of the magnet and consequent waste. Hence, utilization of rare earth magnets in outside environment is not prudent. 

DEFB magnets are made up of a compound of neodymium, iron and boron (Nd2fe14b). They are the most strong and financially savvy sort of rare earth magnets. These magnets have comparative properties to Samarium Cobalt rare earth material aside from, that they are effortlessly oxidized. This implies that Nd2fe14b magnets have an affinity of erosion. The Fe some piece of their name speaks to iron and iron is a standout amongst the most consumption inclined metals. Then again, this issue is not difficult to manage. Various defensive surface medicine systems, for example, nickel, zinc, gold and tin plating give the essential consumption insurance as and when needed. Epoxy tar covering is an alternate defensive surface medication system that is additionally truly regular. 

These surface medication systems guarantee that the attractive material does not experience dampness. Notwithstanding, if the covering endures any manifestation of harm, moistness or water may experience the attractive material underneath and reason rusting. Ndfeb magnets have one of the most noteworthy vitality items. Subsequently, they are mechanically stronger than Samarium based magnets. Their high-vitality item makes them suitable for creative provisions that oblige a conservative outline and low assembling expenses. 

Other helpful aspects of these magnets could be their exorbitant coercive power and normal temperature strength. Much the same as whatever viable material that exists on earth, Ndfeb magnets have their own particular detriments. This incorporates low imperviousness to erosion when crudely plated or covered and low mechanical quality. Rare magnets are connected with tremendous engaging strengths. This characteristic accompanies its own particular novel risks. Rare earth magnets that have measurements of barely a couple of centimeters have the potential of bringing about genuine real damages. This is particularly thus, if a body part gets trapped amidst the two magnets. In a few occasions, these magnets have even brought about broken bones. That is the way influential rare earth magnets might be.

About Stanford Magnets.

Based in California, Stanford Magnets has been involved in the R&D and sales of licensed Rare-earth magnets, Neodymium magnets and SmCo magnets, ceramic magnets, flexible magnets and magnetic assemblies since the mid of 1980s. We supply all these types of magnets in a wide range of shapes, sizes and grades.

Possibilities of the New Magnetic Material

Prof Schuller presented his groundbreaking finding at the American Physical Society meeting conducted in Denver.  It is a magnetic sensitive material, which can alter the use of hard disks and storage devices. He has created a metal bilayer, using thin layers of nickel with vanadium oxide and the resulting structure is sensitive to heat. This means, only minor changes in temperature is needed to alter the magnetism of the drives. This finding could be very useful in electronic engineering. According to Prof Schuller, there’s nothing close to the material found and it can be engineered. He further states that magnetism can be controlled using this, without real application of magnetic field. He states it could be possible to control current or voltage, with it.

He further adds, when at minimal temperature, it functions as an insulator and at higher temperature, it turns into a metal. In the interim, it is a unique and different material. Unlike other major systems that require ample heat using lasers, his finding uses very less heat and that’s great. Also, he states in magnetic memory, it is difficult to reverse memory and yet remain stable. He says an option is using it in electrical networking. For example, when there’s a surge in voltage or current like in the case of power surge or lightening, normal transformers don’t withstand it. This could probably give way to a more stable transformer than can withstand such sudden changes.

Though he agrees it is an incredible finding, he does not limit the uses for it. Every other discovery has had many uses and applications. Quite a few inventions and discoveries were originally sought for something, but turned entirely different after new applications were identified for the same. Likewise, he says it is difficult to comment on the possible uses at this stage, but believes it can help come up with innovative technologies and unexpected uses.

About Stanford Magnets.

Based in California, Stanford Magnets has been involved in the R&D and sales of licensed Rare-earth magnets, Neodymium magnets and SmCo magnets, ceramic magnets, flexible magnets and magnetic assemblies since the mid of 1980s. We supply all these types of magnets in a wide range of shapes, sizes and grades.

Magnetoresistance new promises

Magnetoresistance is an alteration in electrical resistance as a result of a magnetic field’s presence. Magnetoresistance is when the property of a material changes value when magnetic field is applied. First discovered by William Thomson, popularly known as Lord Kelvin, he was however not able to reduce electrical resistance by more than 5%. But the different of 5% was considered minimal, yet a remarkable discovery back then. Since the difference was marginal, it was termed ordinary magnetoresistance (OMR). 

Recent researches and discovery of new materials have made it possible to improve the resistance, thanks to multilayer devices. Now the resistance percentage can be varied greatly, and it is termed as giant magnetoresistance (GMR). Resistance depends on the magnetization or the magnetic field. Albert Fert and Peter Grunberg scientists from France and Germany have won Nobel Prize for Physics, in the year 2007. Thanks to their discovery of "giant magnetoresistance" phenomena, electrical resistance can be reduced greatly. Using this phenomenon, intuitive tools that can get data from hard drives like iPods, PCs and other electronic gadgets were developed. It made radical changes to the once huge hard drives, which are now miniscule and handy. 

Many say GMR is a very practical and useful discovery, which made storage easy and hassle-free. If only GMR wasn’t discovered, we would not have had a handy iPod with a huge playlist, instead, it would just have one song! GMR uses structures that are composed of thin layers of magnetic materials. It is considered as one of the first and most promising application of nanotechnology. It is now possible to store ample data in compact disks as a result of this discovery and paved way for cheaper and better solutions. Now, we are able to store terabytes of data in a compact hard disks, thanks to GMR!

About Stanford Magnets.

Based in California, Stanford Magnets has been involved in the R&D and sales of licensed Rare-earth magnets, Neodymium magnets and SmCo magnets, ceramic magnets, flexible magnets and magnetic assemblies since the mid of 1980s. We supply all these types of magnets in a wide range of shapes, sizes and grades.