J.M.D. Coey,
“Perspective and Prospects for Rare Earth Permanent Magnets”, Engineering 6 (2020), (119–131).
Disclaimer: There is no connection between Prof. JMD Coey and the Company.
Photo credit: www.pnas.org
OUR PRODUCT
We have created strong ferromagnets having a size between 10-20 nanometers. These tiny nanometer sized magnets have been recognized as the best "building blocks" by distinguished experts in this field to create larger size, solid form permanent magnets.
What Prof. J.M.D. Coey, a leading authority in magnetism, and others stated as something “very difficult to realize” has been achieved by NCM by means of a dopant induced alignment of all spins in surface electrons and core electrons in a nanoparticle due to a polarization effect. The induced spin-polarization in magnetic nanoparticles of the same chemical composition generates high anisotropy, which is also a necessary condition for superior permanent magnets. By a one-step, room temperature, “green” synthesis process of doping a host metal oxide (ferrite), NCM successfully created a combination of hard and soft nanomagnets.
To further increase coercivity and increase the magnetic energy product (which is a measure of the magnetic flux that can be created in a given volume) NCM has also modified the synthesis process so that the hard and soft nanomagnets self-organize as nanowires. These nanowires have been observed to have an aspect ratio (the ratio of length to diameter) in excess of 30, and could potentially be 50 or more. By way of comparison, the aspect ratio of the similar particles in neodymium based permanent magnets is 5.
Having created nanometer sized building blocks, NCM’s next objective is to densify the constituent hard-soft nanocomposites and nanowires generated by its synthesis process into solid shapes which can replace rare earth based permanent magnets.