A paramagnetic stainless steel part including a core surrounded by a surface including at least a first zone and at least a second zone, the core and the second zone having a hardness HV1 of between 500 and 900, and a microstructure formed by a sigma phase at a mass percentage of between 40 and 80% and an austenitic phase at a mass percentage of between 20 and 60%, the part wherein the first zone is enriched in Ni relative to the core and the second zone, in that the first zone forms a layer entirely made up of an austenitic phase, the layer being referred to as the austenitic layer, and wherein the austenitic layer has a hardness of less than 400 HV1. Another aspect of the disclosure relates to the method for manufacturing this part.

A bulk dual phase soft magnetic component having a three-dimensional magnetic flux and its manufacturing methods are described herein. The methods can include combining a first powder material with a second powder material to form a component structure, wherein the first powder material comprises a plurality of first particles each comprising a first core and a reactive coating, and wherein the second powder material comprises a plurality of second particles each comprising a second core and a non-reactive coating, and, consolidating the component structure to join the plurality of first particles with the plurality of second particles.

An electromagnetic material for an inductance for operation at cryogenic temperatures including, in an electrically insulating matrix, metal nanoparticles with superparamagnetic behavior of size less than or equal to 30 nm and having a magnetic permeability greater than or equal to 1.5 for a frequency between 5 GHz and 50 GHz.

A method of unambiguous identification and authentication of products for the purpose of better recognition of product forgeries and controlling product piracy, including applying to/into the product an identification substance admixture which contains paramagnetic phases or identifying a product which contains an identification substance admixture containing paramagnetic phases and has an ESR fingerprint spectrum that permits unambiguous identification of the product. Such an ESR fingerprint spectrum is easily measurable, but can be copied or forged only with difficulty. The method relates to an individualizable femto tag for femto ledgers and forms an important interface for what are known as Internet of Things (IOT).

A bulk dual phase soft magnetic component having a three-dimensional magnetic flux and its manufacturing methods are described herein. The methods can include combining a first powder material with a second powder material to form a component structure, wherein the first powder material comprises a plurality of first particles each comprising a first core and a reactive coating, and wherein the second powder material comprises a plurality of second particles each comprising a second core and a non-reactive coating, and, consolidating the component structure to join the plurality of first particles with the plurality of second particles.

The present invention provides an EMI shielding device including a flame retarding, thermal interface material composite with a through plane thermal conductivity of no less than 30 W/mK and a dielectric withstanding voltage of no less than 1 kV/mm, where the composite includes at least one dielectric layer of self-aligned, carbon-based materials associated with superparamagnetic particles and at least one layer of fillers including a blend of dielectric heat transfer materials with a thermal or UV curable polymer or phase change polymer. The anisotropic heat transfer carbon-based materials associated with superparamagnetic materials are aligned under a low magnetic field strength of less than 1 Tesla to an orientation that results in a high thermal conductivity direction which can conduct the maximum heat from the adjacent device of the present composite. The present invention also provides a method for preparing the composite.

The invention is directed to hydrophilic and hydrophobic superparamagnetic nanoparticles and their use as contrast agents for NMR including agents that distinguish oil and water in NMR logging of geological formations containing oil or water. Methods of making these SPIONs are also described.