초록 ▼

The polycrystalline magnetic substance for magnetic refrigeration in or gas refrigeration accordance with the present invention comprises a plurality of magnetic alloy fine crystalline powders that include at least one kind of rare-earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm,

The polycrystalline magnetic substance for magnetic refrigeration in or gas refrigeration accordance with the present invention comprises a plurality of magnetic alloy fine crystalline powders that include at least one kind of rare-earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, with the remainder metal consisting substantially of 2 kinds selected from Al, Ni, Co, and Fe, and a metallic binder which forms a compact together with the fine crystalline particles, where the abundance ratio of the metallic binder in the compact is 1 to 80% by volume.

대표청구항 ▼

A magnetic refrigerant comprised of a polycrystalline magnetic substance comprising a plurality of magnetic alloy fine crystalline particles that comprise at least one rare-earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, and the remainder compr

A magnetic refrigerant comprised of a polycrystalline magnetic substance comprising a plurality of magnetic alloy fine crystalline particles that comprise at least one rare-earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, and the remainder comprising at least one metal selected from the group consisting of Al, Ni, Co, and Fe; and a metallic binder for forming a compact together with said fine crystalline particles, the abundance ratio of said metallic binder in the compact being 1 to 80% by volume.