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:
May. 10, 1994
Filed:
Jan. 08, 1993
Pierre A Willermet, Livonia, MI (US);
Arup K Gangopadhyay, Novi, MI (US);
Michael A Tamor, Toledo, OH (US);
William C Vassell, Bloomfield, MI (US);
Margherita Zanini-Fisher, Bloomfield, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A powertrain component (10) for use in an internal combustion engine, the powertrain component comprising a coating system including an amorphous or nanocrystalline ceramic film (30). The powertrain component (10) also includes an interlayer (42) formed between the film and the component. The interlayer (42) accommodates stresses engendered by formation of the film (30), and thereby improves adherence of the film (30) to the substrate (10). To enable engineering of desired surface properties, the film (30), the interlayer (42), or both may be provided with a graded composition profile.