The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2024
Filed:
Mar. 27, 2022
Applicant:
City University of Hong Kong, Hong Kong, HK;
Assignee:
City University of Hong Kong, Hong Kong, HK;
Primary Examiner:
Int. Cl.
CPC ...
C22C 45/04 (2006.01); C22C 45/10 (2006.01); C23C 14/35 (2006.01); C23C 14/16 (2006.01); C22C 45/00 (2023.01);
U.S. Cl.
CPC ...
C23C 14/35 (2013.01); C22C 45/001 (2013.01); C22C 45/04 (2013.01); C22C 45/10 (2013.01); C23C 14/16 (2013.01);
Abstract
An ultraflat and ultralow-friction metallic glass thin film is fabricated. The metallic glass thin film is a binary alloy, wherein a content of one metal element of the binary alloy is between 45 atomic % and 64 atomic %. The metallic glass thin film has an atomically smooth surface with a surface roughness Rless than 0.1 nm and a total height of profile Rless than 0.15 nm; the friction coefficient is below 1×10. Due to the metallic glass thin film being treated by ion bombardment, the metallic glass thin film is thermally ultrastable.