A cold storage material, which has a large specific heat and a small magnetization in an extremely low temperature region and has satisfactory manufacturability, is provided, and a method for manufacturing the same is provided. Further, a refrigerator having high efficiency and excellent cooling performance is provided by filling this refrigerator with the above-described cold storage material. Moreover, a device incorporating a superconducting coil capable of reducing influence of magnetic noise derived from a cold storage material is provided. The cold storage material of embodiments is a granular body composed of an intermetallic compound in which the ThCr.sub.2Si.sub.2-type structure 11 occupies 80% by volume or more, and has a crystallite size of 70 nm or less.

The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.

The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.

The systems and methods described herein relate to remote cooling. More particularly, the systems described herein include a side to be cooled coupled to an object to be cooled, and a side where heat is dissipated at a distant location. The side to be cooled includes a thermodynamic energy converter and a coil that is electrically coupled to the thermodynamic energy converter. The side where heat is dissipated includes a coil configured to inductively couple with the coil of the side to be cooled. The side where heat is dissipated also includes a heating element electrically coupled to the second coil. The heating element is configured to convert electrical energy into thermal energy. The thermodynamic energy converter absorbs thermal energy from the object to be cooled and converts, directly or indirectly, the thermal energy into electrical energy. The electrical energy is transmitted from the side to be cooled to the side where heat is dissipated by wirelessly coupling the cold and side where heat is dissipated coils. At the side where heat is dissipated, the electrical energy is converted back into thermal energy by the heating element, and the thermal energy is dissipated.

Described are magnetocaloric materials comprising manganese, iron, phosphorus, silicon, carbon and optionally one or both of nitrogen and boron, and processes for producing said magnetocaloric materials.

A magnetocaloric material comprising a La—Fe—Si based alloy composition that is compositionally modified to include a small but effective amount of at least one of Al, Ga, and In to improve mechanical stability of the alloy (substantially reduce alloy brittleness), improve thermal conductivity, and preserve comparable or provide improved magnetocaloric effects. The alloy composition may be further modified by inclusion of at least one of Co, Mn, Cr, and V as well as interstitial hydrogen.

A system including: an active magnetic regenerative refrigerator apparatus that includes a high magnetic field section in which a hydrogen heat transfer fluid can flow from a cold side to a hot side through at least one magnetized bed of at least one magnetic refrigerant, and a low magnetic field or demagnetized section in which the hydrogen heat transfer fluid can flow from a hot side to a cold side through the demagnetized bed; a first conduit fluidly coupled between the cold side of the low magnetic field or demagnetized section and the cold side of the high magnetic field section; and a second conduit fluid coupled to the first conduit, an expander and at least one liquefied hydrogen storage module.

A bus bar arrangement including two or more bus bars arranged for conducting currents, wherein the two or more busbars are arranged parallel and at a distance from each other, the arrangement including a magnetic structure which is arranged between two bus bars which are next to each other.

A bus bar arrangement including two or more bus bars arranged for conducting currents, wherein the two or more busbars are arranged parallel and at a distance from each other, the arrangement including a magnetic structure which is arranged between two bus bars which are next to each other.

A magnetocaloric material comprising a La—Fe—Si based alloy composition that is compositionally modified to include a small but effective amount of at least one of Al, Ga, and In to improve mechanical stability of the alloy (substantially reduce alloy brittleness), improve thermal conductivity, and preserve comparable or provide improved magnetocaloric effects. The alloy composition may be further modified by inclusion of at least one of Co, Mn, Cr, and V as well as interstitial hydrogen.