公开(公告)号：US20220152700A1

公开(公告)日：2022-05-19

申请号：US16653566

申请日：2019-10-15

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Abbas Saeed HAKEEM ,  Akeem Yusuf ADESINA ,  Muhammad Umar AZAM ,  Bilal Anjum AHMED ,  Ahmad A. SOROUR

IPC: B22F3/105 ,  C22C32/00 ,  C22C38/18 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  F16C33/30

Abstract: Bearing steel comprising cubic boron nitride (c-BN) and/or nickel coated cBN spark plasma sintered at a temperature in the range of 850-1050° C. is disclosed. The tribological and corrosion resistance of the bearing steel improved with increasing the amount of c-BN. Further improvement in the properties was achieved with the incorporation of nickel coated c-BN, which caused a phase transition of the bearing steel from magnetic to non-magnetic phase accompanied by interdiffusion enhancement between the matrix and c-BN reinforcement.

公开(公告)号：US20200317946A1

公开(公告)日：2020-10-08

申请号：US16545669

申请日：2019-08-20

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Mohammed Abdul SAMAD ,  Muhammad Umar AZAM

IPC: C09D123/06 ,  C08K3/04 ,  C08K3/34 ,  B05D1/04 ,  B05D3/02

Abstract: A method for forming a nanocomposite coating on a substrate is described. The nanocomposite substrate comprises polyethylene, functionalized carbon nanotubes, and nanoclay. The method may use microparticles of UHMWPE with functionalized carbon nanotubes and clay nanoplatelets to form a powder mixture, which is then applied to a heated substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV and a debonding strength of at least 25 N.