Abstract: The present disclosure relates to a high-entropy alloy and a manufacturing method therefor, and in particular, a high-entropy alloy and a manufacturing method therefor that comprises a multi-element alloy matrix and Cu, and comprises an alloy having a face-centered cubic (FCC)-based phase, such that the high-entropy alloy may have greater hardness and strength than an existing transition metal alloy while maintaining a FCC-based single phase, and has high lubricity.

Abstract: The present disclosure relates to an iron (Fe)-based amorphous soft magnetic alloy and a method for manufacturing the soft magnetic alloy. According to the present disclosure, there is provided an Fe-based soft magnetic alloy including C and S meeting 1?a+b?6, wherein a is an atomic % content of C and b is an atomic % content of S, B meeting 4.5?x?13.0, wherein x is an atomic % content of B, Cu meeting 0.2?y?1.5, wherein y is an atomic % content of Cu, Al meeting 0.5?z?2, wherein z is an atomic % content of Al, and a remaining atomic % content of Fe and other inevitable impurities, wherein the Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with a mean crystalline grain size ranging from 15 nm to 50 nm in an amorphous base.

Abstract: Disclosed are a non-oriented electrical steel sheet and a manufacturing method therefore, the sheet ensuring excellent magnetic characteristics by having increased texture intensity of surface (100) through strict control of the content ratio of Si, Al and the like and through final annealing heat treatment in an inert gas atmosphere.

Abstract: The present invention relates to an amorphous alloy having low frictional resistance and capable of improving abrasion resistance, a target made of the amorphous alloy, and a compressor comprising a layer of the amorphous alloy as a coating layer. According to the present invention, it is possible to secure high hardness and a low elastic modulus of the coating layer by controlling a microstructure having an amorphous phase as a primary phase by using Ti-based three-component to five-component amorphous alloys. As a result, it is possible to prevent the coating layer from being peeled off from a matrix or destroyed, and thus it is possible to achieve the effect of improving reliability or durability of a mechanical apparatus such as a compressor.

Abstract: The present disclosure relates to a magnetic shielding sheet and a method of preparation thereof. The magnetic shielding sheet includes a magnetic layer, and a protective layer disposed on at least one surface of the magnetic layer. The magnetic layer includes a metal-ceramic composite that is metal powder, on which a ceramic coating layer is formed.

Abstract: The present invention relates to: Ti alloy coating-film having excellent adherence with a base material, low friction resistance, and excellent hardness and elastic modulus characteristics; a method for manufacturing the coating-film, and a compressor comprising a component to which the coating-film is applied. According to the present invention, provided is the coating-film having: an amorphous matrix comprising Ti as a main component; and a nano composite microstructure including nanocrystals comprising TiN components dispersed in the matrix, thereby having an effect of increasing the ratio of H/E (hardness/elastic modulus) so as to enable the durability of the coating-film to improve.

Abstract: The present disclosure relates to a magnetic shielding sheet and a method of preparation thereof. The magnetic shielding sheet includes a magnetic layer, and a protective layer disposed on at least one surface of the magnetic layer. The magnetic layer includes a metal-ceramic composite that is metal powder, on which a ceramic coating layer is formed.

Abstract: Disclosed are magnetic powders, compressed magnetic powders and a preparation method thereof. The magnetic powder contains a plate-shaped particle whose aspect ratio defined in a following relationship 1 is equal to or larger than 4: [relationship 1] aspect ratio=length of long side of plate-shaped particle/length of short side of plate-shaped particle.

Abstract: The present disclosure relates to an iron (Fe)-based amorphous soft magnetic alloy and a method for manufacturing the soft magnetic alloy. According to the present disclosure, there is provided an Fe-based soft magnetic alloy including C and S meeting 1?a+b?6, wherein a is an atomic % content of C and b is an atomic % content of S, B meeting 4.5?x?13.0, wherein x is an atomic % content of B, Cu meeting 0.2?y?1.5, wherein y is an atomic % content of Cu, Al meeting 0.5?z?2, wherein z is an atomic % content of Al, and a remaining atomic % content of Fe and other inevitable impurities, wherein the Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with a mean crystalline grain size ranging from 15 nm to 50 nm in an amorphous base.

Abstract: The present invention relates to an amorphous alloy having low frictional resistance and capable of improving abrasion resistance, a target made of the amorphous alloy, and a compressor comprising a layer of the amorphous alloy as a coating layer. According to the present invention, it is possible to secure high hardness and a low elastic modulus of the coating layer by controlling a microstructure having an amorphous phase as a primary phase by using Ti-based three-component to five-component amorphous alloys.