Magnetocaloric alloys useful for magnetic refrigeration applications
US-2019352747-A1 · Nov 21, 2019 · US
Magnetocaloric alloys useful for magnetic refrigeration applications
US11728074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11728074-B2 |
| Application number | US-201916969858-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 20, 2019 |
| Priority date | Feb 22, 2018 |
| Publication date | Aug 15, 2023 |
| Grant date | Aug 15, 2023 |
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Abstract
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This invention relates to magnetocaloric materials comprising alloys useful for magnetic refrigeration applications. In some embodiments, the disclosed alloys may be Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2 nd order magnetic phase transitions near their curie temperature, thus there are limited thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. Surprisingly, the performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.
First claim
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What is claimed is: 1. A magnetocaloric material comprising: (A x B 1-x ) Si 1-y-z , (D y E z ), wherein A and B are selected from the group consisting of Ce, Nd, and Gd, wherein D is selected from the group consisting of Cr and Mn, wherein E is selected from the group consisting of Cr, Mn, Fe, Al, Ni, Co, Cu, and Zn, wherein x is in the range of 0 to 1.0, wherein y is in the range of about 0.05 to about 0.3, wherein z is in the range of 0 about 0.3, and wherein 0.05≤y+z≤0.3. 2. The magnetocaloric material of claim 1 , wherein y+z=0.2. 3. The magnetocaloric material of claim 2 , wherein the material comprises: (A x B 1-x ) Si 0.8 Mn 0.2 , wherein A and B are selected from the group consisting of Ce, Nd, and Gd, and wherein x is in the range of 0 to 1.0. 4. The magnetocaloric material of claim 3 , wherein the material is Ce 1.0 Si 0.8 Mn 0.2 , Nd 1.0 Si 0.8 Mn 0.2 , Gd 1.0 Si 0.8 Mn 0.2 , Ce 0.1 Nd 0.9 Si 0.8 Mn 0.2 , Ce 0.2 Nd 0.8 Si 0.8 Mn 0.2 , Ce 0.3 Nd 0.7 Si 0.8 Mn 0.2 , Ce 0.4 Nd 0.6 Si 0.8 Mn 0.2 , Ce 0.5 Nd 0.5 Si 0.8 Mn 0.2 , Ce 0.6 Nd 0.4 Si 0.8 Mn 0.2 , Ce 0.7 Nd 0.3 Si 0.8 Mn 0.2 , Ce 0.8 Nd 0.2 Si 0.8 Mn 0.2 , Ce 0.9 Nd 0.1 Si 0.8 Mn 0.2 , Gd 0.1 Nd 0.9 Si 0.8 Mn 0.2 , Gd 0.2 Nd 0.8 Si 0.8 Mn 0.2 , Gd 0.3 Nd 0.7 Si 0.8 Mn 0.2 , Gd 0.4 Nd 0.6 Si 0.8 Mn 0.2 , Gd 0.5 Nd 0.8 Si 0.8 Mn 0.2 , Gd 0.6 Nd 0.4 Si 0.8 Mn 0.2 , Gd 0.7 Nd 0.3 Si 0.8 Mn 0.2 , Gd 0.8 Nd 0.2 Si 0.8 Mn 0.2 , Gd 0.9 Nd 0.1 Si 0.8 Mn 0.2 , Ce 0.1 Gd 0.9 Si 0.8 Mn 0.2 , Ce 0.2 Gd 0.8 Si 0.8 Mn 0.2 , Ce 0.3 Gd 0.7 Si 0.8 Mn 0.2 , Ce 0.4 Gd 0.6 Si 0.8 Mn 0.2 , Ce 0.5 Gd 0.5 Si 0.8 Mn 0.2 , Ce 0.6 Gd 0.4 Si 0.8 Mn 0.2 , Ce 0.7 Gd 0.3 Si 0.8 Mn 0.2 , Ce 0.8 Gd 0.2 Si 0.8 Mn 0.2 , or Ce 0.9 Gd 0.1 Si 0.8 Mn 0.2 . 5. The magnetocaloric material of claim 2 , wherein the material comprises: (A x B 1-x ) Si 0.8 Cr 0.2 , wherein A and B are selected from the group consisting of Ce, Nd, and Gd, and wherein x is in the range of 0 to 1.0. 6. The magnetocaloric material of claim 5 , wherein the material is Ce 1.0 Si 0.8 Cr 0.2 , Nd 1.0 Si 0.8 Cr 0.2 , Gd 1.0 Si 0.8 Cr 0.2 , Ce 0.1 Nd 0.9 Si 0.8 Cr 0.2 , Ce 0.2 Nd 0.8 Si 0.8 Cr 0.2 , Ce 0.3 Nd 0.7 Si 0.8 Cr 0.2 , Ce 0.4 Nd 0.6 Si 0.8 Cr 0.2 , Ce 0.5 Nd 0.5 Si 0.8 Cr 0.2 , Ce 0.6 Nd 0.4 Si 0.8 Cr 0.2 , Ce 0.7 Nd 0.3 Si 0.8 Cr 0.2 , Ce 0.8 Nd 0.2 Si 0.8 Cr 0.2 , Ce 0.9 Nd 0.1 Si 0.8 Cr 0.2 , Gd 0.1 Nd 0.9 Si 0.8 Cr 0.2 , Gd 0.2 Nd 0.8 Si 0.8 Cr 0.2 , Gd 0.3 Nd 0.7 Si 0.8 Cr 0.2 , Gd 0.4 Nd 0.6 Si 0.8 Cr 0.2 , Gd 0.5 Nd 0.8 Si 0.8 Cr 0.2 , Gd 0.6 Nd 0.4 Si 0.8 Cr 0.2 , Gd 0.7 Nd 0.3 Si 0.8 Cr 0.2 , Gd 0.8 Nd 0.2 Si 0.8 Cr 0.2 , Gd 0.9 Nd 0.1 Si 0.8 Cr 0.2 , Ce 0.1 Gd 0.9 Si 0.8 Cr 0.2 , Ce 0.2 Gd 0.5 Si 0.8 Cr 0.2 , Ce 0.3 Gd 0.7 Si 0.8 Cr 0.2 , Ce 0.4 Gd 0.6 Si 0.8 Cr 0.2 , Ce 0.5 Gd 0.5 Si 0.8 Cr 0.2 , Ce 0.6 Gd 0.4 Si 0.8 Cr 0.2 , Ce 0.7 Gd 0.3 Si 0.8 Cr 0.2 , Ce 0.8 Gd 0.2 Si 0.8 Cr 0.2 , or Ce 0.9 Gd 0.1 Si 0.8 Cr 0.2 . 7. The magnetocaloric material of claim 2 , wherein the material comprises: (A x B 1-x ) Si 0.8 Mn 0.1 Cr 0.1 , wherein A and B are selected from the group consisting of Ce, Nd, and Gd, and wherein x is in the range of 0 to 1.0. 8. The magnetocaloric material of claim 7 , wherein the material is Ce 1.0 Si 0.8 Mn 0.1 Cr 0.1 , Nd 1.0 Si 0.8 Mn 0.1 Cr 0.1 , Gd 1.0 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.1 Nd 0.9 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.2 Nd 0.8 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.3 Nd 0.7 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.4 Nd 0.6 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.5 Nd 0.5 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.6 Nd 0.4 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.7 Nd 0.3 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.8 Nd 0.2 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.9 Nd 0.1 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.1 Nd 0.9 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.2 Nd 0.8 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.3 Nd 0.7 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.4 Nd 0.6 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.5 Nd 0.5 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.6 Nd 0.4 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.7 Nd 0.3 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.8 Nd 0.2 Si 0.8 Mn 0.1 Cr 0.1 , Gd 0.9 Nd 0.1 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.1 Gd 0.9 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.2 Gd 0.5 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.3 Gd 0.7 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.4 Gd 0.6 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.5 Gd 0.5 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.6 Gd 0.4 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.7 Gd 0.3 Si 0.8 Mn 0.1 Cr 0.1 , Ce 0.8 Gd 0.2 Si 0.8 Mn 0.1 Cr 0.1 , or Ce 0.9 Gd 0.1 Si 0.8 Mn 0.1 Cr 0.1 . 9. The magnetocaloric material of claim 2 , wherein the material comprises: (A x B 1-x ) Si 0.8 Mn 0.05 Cr 0.15 , wherein A and B are selected from the group consisting of Ce, Nd, and Gd, and wherein x is in the range of 0 to 1.0. 10. The magnetocaloric material of claim 9 , wherein the material is Ce 1.0 Si 0.8 Mn 0.05 Cr 0.15 , Nd 1.0 Si 0.8 Mn 0.05 Cr 0.15 , Gd 1.0 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.1 Nd 0.9 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.2 Nd 0.8 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.3 Nd 0.7 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.4 Nd 0.6 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.5 Nd 0.5 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.6 Nd 0.4 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.7 Nd 0.3 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.8 Nd 0.2 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.9 Nd 0.1 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.1 Nd 0.9 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.2 Nd 0.8 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.3 Nd 0.7 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.4 Nd 0.6 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.5 Nd 0.5 Si 0.9 Mn 0.05 Cr 0.15 , Gd 0.6 Nd 0.4 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.7 Nd 0.3 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.8 Nd 0.2 Si 0.8 Mn 0.05 Cr 0.15 , Gd 0.9 Nd 0.1 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.1 Gd 0.9 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.2 Gd 0.9 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.3 Gd 0.7 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.4 Gd 0.6 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.5 Gd 0.5 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.6 Gd 0.4 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.7 Gd 0.3 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.8 Gd 0.2 Si 0.8 Mn 0.05 Cr 0.15 , Ce 0.9 Gd 0.1 Si 0.8 Mn 0.05 Cr 0.15 . 11. The magnetocaloric material of claim 2 , wherein the material comprises: (A x B 1-x ) Si 0.8 Mn 0.15 Cr 0.05 , wherein A and B are selected from the group consisting of Ce, Nd, and Gd, and wherein x is in the range of 0 to 1.0. 12. The magnetocaloric material of claim 11 , wherein the material is Ce 1.0 Si 0.8 Mn 0.15 Cr 0.05 , Nd 1.0 Si 0.8 Mn 0.15 Cr 0.05 , Gd 1.0 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.1 Nd 0.9 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.2 Nd 0.8 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.3 Nd 0.7 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.4 Nd 0.6 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.5 Nd 0.5 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.6 Nd 0.4 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.7 Nd 0.3 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.8 Nd 0.2 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.9 Nd 0.1 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.1 Nd 0.9 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.2 Nd 0.8 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.3 Nd 0.7 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.4 Nd 0.6 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.5 Nd 0.5 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.6 Nd 0.4 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.7 Nd 0.3 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.8 Nd 0.2 Si 0.8 Mn 0.15 Cr 0.05 , Gd 0.9 Nd 0.1 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.1 Gd 0.9 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.2 Gd 0.8 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.3 Gd 0.7 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.4 Gd 0.6 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.5 Gd 0.5 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.6 Gd 0.4 Si 0.8 Mn 0.15 Cr 0.05 , Ce 0.7 Gd 0.3 Si 0.9 Mn 0.15 Cr 0.05 , Ce 0.8 Gd 0.2 Si 0.8 Mn 0.15 Cr 0.05 , or Ce 0.9 Gd 0.1 Si 0.8 Mn 0.15 Cr 0.05 . 13. The magnetocaloric material of claim 2 , wherein the material comprises: (A x B 1-X ) Si 0.8 Cr 0.1 E 0.1 , wherein A and B are selected from the group consisting of Ce, Nd, and Gd, wherein E is selected from the group consisting of Fe, Al, Ni, Co, Cu, and Zn, and wherein x is in the range of 0 to 1.0. 14. The magnetocaloric material of claim 13 , wherein the material is Ce 1.0 Si 0.8 Cr 0.1 Fe 0.1 , Nd 1.0 Si 0.8 Cr 0.1 Fe 0.1 , Gd 1.0 Si 0.8 Cr 0.1 Fe 0.
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- H01F1/015Primary
Metals or alloys · CPC title
Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00 · CPC title
Machines, plants or systems, using electric or magnetic effects · CPC title
and IVa elements, e.g. Gd2Fe14C · CPC title
Magnetic · CPC title
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- What does patent US11728074B2 cover?
- This invention relates to magnetocaloric materials comprising alloys useful for magnetic refrigeration applications. In some embodiments, the disclosed alloys may be Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2 nd order magnetic phase transitions near their curie temperature, thus there are limited thermal and structural …
- Who is the assignee on this patent?
- General Engineering & Res L L C, Univ California
- What technology area does this patent fall under?
- Primary CPC classification H01F1/015. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 15 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).