公开(公告)号：US10124402B2

公开(公告)日：2018-11-13

申请号：US15448788

申请日：2017-03-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Kook Yoon ,  Kyung Tae Hong ,  Gyeung Ho Kim ,  Young Jun Choi ,  Geun Hun Oh

IPC: B22D11/00 ,  B22D11/117 ,  B22D11/113 ,  B22D11/115 ,  D01F9/12 ,  D06M11/83 ,  B22D19/14 ,  B22D21/04 ,  B22D27/02 ,  C22C47/08 ,  C22C49/06 ,  C22C49/14

Abstract: A method for manufacturing carbon fiber reinforced aluminum composites is provided. Particularly, the method uses a stir casting process during a melting and casting process and reduces a contact angle of carbon against aluminum by inputting carbon fibers while supplying a current to liquid aluminum to induce the carbon fibers to be spontaneously and uniformly distributed in the liquid aluminum and inhibits a formation of an aluminum carbide (Al4C3) phase on an interface between the aluminum and the carbon fiber, thereby manufacturing carbon fiber reinforced aluminum composites having excellent electrical, thermal and mechanical characteristics.

公开(公告)号：US08974857B2

公开(公告)日：2015-03-10

申请号：US13675136

申请日：2012-11-13

Applicant: Korea Institute of Science and Technology

Inventor： Jin Kook Yoon ,  Jung Man Doh ,  Sang Whan Park

IPC: C23C10/34 ,  C23C16/38 ,  B05D7/14 ,  C23C8/80 ,  C23C8/02 ,  C23C8/70 ,  C23C10/02 ,  C23C10/08 ,  C23C10/60

CPC classification number: B05D7/14 ,  C23C8/02 ,  C23C8/70 ,  C23C8/80 ,  C23C10/02 ,  C23C10/08 ,  C23C10/60

Abstract: Disclosed is to a method for manufacturing a cobalt boride coating layer on the surface of iron-based metals by using a pack cementation process. In particular, the present invention relates to a method for manufacturing a cobalt boride coating layer by forming a composite coating layer on the surface of steels which is composed of an outmost layer having a composition of cobalt boride (Co2B) and an inner layer having a composition of iron-cobalt boride ((Fe,Co)2B). Since the cobalt boride coating layer is a compact coating layer having little defects such as pores, it can improve physical properties such as corrosion resistance, wear resistance and oxidation resistance of steels.

Abstract translation: 公开了一种通过使用包装胶结法在铁基金属的表面上制造硼化钴涂层的方法。 特别地，本发明涉及通过在由具有钴硼化物（Co2B）组成的最外层和具有钴硼化物（Co2B）的内层的外层组成的钢表面上形成复合涂层而制造钴化钴涂层的方法， 钴铁硼钴（（Fe，Co）2B）的组成。 由于钴硼化物涂层是小孔等缺陷小的被覆层，因此能够提高钢的耐腐蚀性，耐磨性，耐氧化性等物性。