公开(公告)号：US11408060B2

公开(公告)日：2022-08-09

申请号：US16484387

申请日：2018-01-30

Applicant: LG ELECTRONICS INC. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Kyoung Jin Ku ,  Dong Han Kim ,  Joungwook Kim ,  Hangjin Ban ,  Bumdong Sa ,  Eun Soo Park ,  Wook Ha Ryu ,  Kyung-Jun Kim ,  Jinwoo Kim ,  Heh Sang Ahn

IPC: C22C45/10 ,  C23C14/16 ,  C23C14/34 ,  H01J37/34

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.

公开(公告)号：US11873548B2

公开(公告)日：2024-01-16

申请号：US17486998

申请日：2021-09-28

Applicant: Seoul National University R & DB Foundation

Inventor： Eun Soo Park ,  Geun Hee Yoo ,  Kook Noh Yoon ,  Ji Young Kim ,  Wook Ha Ryu

IPC: C22C45/10 ,  B22D19/00 ,  B22D21/02 ,  F16H49/00

CPC classification number: C22C45/10 ,  B22D19/0036 ,  B22D21/022 ,  F16H49/001 ,  F16H2049/003

Abstract: Disclosed is a gear including a resettable metallic glass. The gear of the present disclosure includes, as a base material, a resettable metallic glass, wherein the resettable metallic glass includes at least one metal element selected from each of (a) the group consisting of Ti, Zr, and Hf and (b) the group consisting of Fe, Co, Ni, Cu, and Zn, and further includes at least one metal element to maximize the complexity in the thermodynamic enthalpy of mixing among constituent elements, thereby including multiple resetting cores in various atomic-scale cluster forms in an amorphous matrix, leading to a structure with maximized structural complexity.

公开(公告)号：US20220098713A1

公开(公告)日：2022-03-31

申请号：US17486987

申请日：2021-09-28

Applicant: Seoul National University R&DB Foundation

Inventor： Eun Soo PARK ,  Geun Hee Yoo ,  Kook Noh Yoon ,  Ji Young Kim ,  Wook Ha Ryu

IPC: C22C45/10 ,  C22F1/18

Abstract: Disclosed are a resettable metallic glass and a manufacturing method therefor. The resettable metallic glass may include: (1) an element group TM consisting of group IV transition elements; (2) an element group E having a negative (−) enthalpy of mixing with group IV transition elements and including a eutectic reaction of a large temperature difference; (3) an element group PN having a positive (+) enthalpy of mixing with the element group TM and a negative (−) enthalpy of mixing with the element group E to form both a TM-E cluster resetting core and an E-PN cluster resetting core or, on the contrary, an element group NP having a negative (−) enthalpy of mixing with the element group TM and a positive (+) enthalpy of mixing with the element group E to form both a TM-E cluster resetting core and a TM-NP cluster resetting core.