Abstract: 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.

Abstract: The present invention relates to magnetocaloric materials comprising manganese, iron, silicon, phosphorus, nitrogen and optionally boron.

Abstract: 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.

Abstract: Described are a kit comprising at least two magnetocaloric materials having identical stoichiometry but different Curie temperature, a magnetocaloric regenerator comprising at least two magnetocaloric materials having identical stoichiometry but different Curie temperature and a process for producing at least two magnetocaloric materials having identical stoichiometry but different Curie temperature.

Abstract: The present invention relates to magnetocaloric materials comprising manganese, iron, silicon, phosphorus, nitrogen and optionally boron.

Abstract: A magnetocaloric material of the general formula (I) (MnxFe1-x)2+uP1-y-zSiyBz wherein 0.55?x?0.75, 0.25?y<0.4, 0.05<z?0.2, ?0.1?u?0.05.

Abstract: A magnetocaloric material of the general formula (I) (MnxFe1-x)2+uP1-y-zSiyBz wherein 0.55?x?0.75, 0.4?y?0.65, 0.005?z?0.025, ?0.1?u?0.05.

Abstract: A magnetocaloric material of the general formula (I) (MnxFe1-x)2+u P1-y-zSiyBz wherein 0.25?x?0.55, 0.25?y?0.65, 0<z?0.2?0.1?u?0.05, and y+z?0.7.

Abstract: What are described are magnetocaloric materials of the general formula (MnxFe1?x)2+zP1?ySiy where 0.55?x<1 0.4?y?0.8 ?0.1?z?0.1.

Abstract: In a process for producing organic substrate particles bonded to switchable ferromagnetic nanoparticles with a mean particle diameter in the range from 10 to 1000 nm, the ferromagnetic nanoparticles used are those nanoparticles which are nonferromagnetic at first, but become ferromagnetic when the temperature is lowered, these at first nonferromagnetic nanoparticles in dispersed form are bonded to the organic substance particles, and then the nanoparticles bonded to the substrate particles are made ferromagnetic as a result of the temperature being lowered.

Abstract: In a process for producing organic substrate particles bonded to switchable ferromagnetic nanoparticles with a mean particle diameter in the range from 10 to 1000 nm, the ferromagnetic nanoparticles used are those nanoparticles which are nonferromagnetic at first, but become ferromagnetic when the temperature is lowered, these at first nonferromagnetic nanoparticles in dispersed form are bonded to the organic substance particles, and then the nanoparticles bonded to the substrate particles are made ferromagnetic as a result of the temperature being lowered.

Abstract: The invention relates to a method for generating giant magnetocaloric materials, the giant magnetocaloric materials obtained thereby and their use in magnetocaloric heat pumps, magnetocaloric power converters, actuators or magnetic switches.

Abstract: The invention relates to a method for generating giant magnetocaloric materials, the giant magnetocaloric materials obtained thereby and their use in magnetocaloric heat pumps, magnetocaloric power converters, actuators or magnetic switches.

Abstract: A thermomagnetic generator which converts thermal energy to electrical energy without intermediate conversion to mechanical work and which works at temperatures in the range from ?20° C. to 200° C. comprises a thermomagnetic material selected from, for example, (1) compounds of the general formula (I) (AyBy?1)2+?CwDxEz??(I) where A is Mn or Co, B is Fe, Cr or Ni, C, D and E at least two of C, D and E are different, have a non-vanishing concentration and are selected from P, B, Se, Ge, Ga, Si, Sn, N, As and Sb, where at least one of C, D and E is Ge or Si, ? is a number in the range from ?0.1 to 0.1, w, x, y, z are numbers in the range from 0 to 1, where w+x+z=1.

Abstract: What are described are magnetocaloric materials of the general formula (MnxFe1?x)2+zP1?ySiy where 0.20?x?0.40 0.4?y?0.8 ?0.1?z?0.1.

Abstract: What are described are magnetocaloric materials of the general formula (MnxFe1?x)2+zP1?ySiy where 0.55?x<1 0.4?y?0.8 ?0.1?z?0.1.

Abstract: In a process for producing organic substrate particles bonded to switchable ferromagnetic nanoparticles with a mean particle diameter in the range from 10 to 1000 nm, the ferromagnetic nanoparticles used are those nanoparticles which are nonferromagnetic at first, but become ferromagnetic when the temperature is lowered, these at first nonferromagnetic nanoparticles in dispersed form are bonded to the organic substance particles, and then the nanoparticles bonded to the substrate particles are made ferromagnetic as a result of the temperature being lowered.

Abstract: The process for preparing metal-based materials for magnetic cooling or heat pumps comprises the following steps: a) reacting chemical elements and/or alloys in a stoichiometry which corresponds to the metal-based material in the solid phase and/or liquid phase, b) if appropriate converting the reaction product from stage a) to a solid, c) sintering and/or heat treating the solid from stage a) or b), d) quenching the sintered and/or heat treated solid from stage c) at a cooling rate of at least 100 K/s.

Abstract: A thermomagnetic generator which converts thermal energy to electrical energy without intermediate conversion to mechanical work and which works at temperatures in the range from ?20° C. to 200° C. comprises a thermomagnetic material selected from, for example, (1) compounds of the general formula (I) (AyBy?1)2+?CwDxEz??(I) where A is Mn or Co, B is Fe, Cr or Ni, C, D and E at least two of C, D and E are different, have a non-vanishing concentration and are selected from P, B, Se, Ge, Ga, Si, Sn, N, As and Sb, where at least one of C, D and E is Ge or Si, ? is a number in the range from ?0.1 to 0.1, w, x, y, z are numbers in the range from 0 to 1, where w+x+z=1.

Abstract: The invention relates to a material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (AYB1-Y)2+?CWDXEZ Wherein: A is selected from Mn and Co; B is selected from Fe and Cr; of C, D and E at least two are different, have a non-vanishing concentration and are selected from P, B. Se, Ge, Ga, Si, Sn and Sb; wherein at least one of C, D and E is Ge or Si; W, X, Y and Z each is a number in the range 0-1, and W+X+Z=1; and?as a number from (?0.1)-(+0.1).