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:
Jul. 22, 2025
Filed:
Dec. 29, 2022
GM Global Technology Operations Llc, Detroit, MI (US);
Zhongyi Liu, Troy, MI (US);
Heewook Lee, Oakland Township, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
Tyson Whittier Brown, Royal Oak, MI (US);
Ratandeep Singh Kukreja, Auburn Hills, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A method of manufacturing a brake rotor or brake drum having a composite structure includes casting an aluminum alloy to form a core of the brake rotor or brake drum, the core defining a core surface, depositing a high entropy alloy or yttrium stabilized zirconia on the core surface to form a thermal barrier layer on the core surface, and depositing an iron-aluminum-silicon-zirconium alloy on the thermal barrier layer to form a wear-resistant layer on the thermal barrier layer, the wear-resistant layer defining a friction surface of the brake rotor or brake drum.