Invention Grant
- Patent Title: Method for forming a nitrogenation barrier and machine formed using a body having the nitrogenation barrier
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Application No.: US15895743Application Date: 2018-02-13
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Publication No.: US10673288B2Publication Date: 2020-06-02
- Inventor: Lawrence Bernard Kool , Min Zou , Wanming Zhang , Susan Corah , Christopher Klapper , Francis Johnson , Steve Buresh
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee Address: US NY Schenectady
- Agency: The Small Patent Law Group LLC
- Agent Christopher R. Carroll
- Main IPC: H02K1/02
- IPC: H02K1/02 ; H02K1/04 ; H02K15/02 ; H02K15/12 ; H01F1/34 ; H01F3/02 ; H01F41/02 ; C22C38/00 ; C22C38/54 ; C22C38/06 ; B32B15/01 ; C22C38/30 ; C22C38/58 ; C22C38/38 ; H01F3/10
Abstract:
A method includes forming one or more oxide barrier layers on one or more protected portions of a magnetic, metallic body, and converting one or more unprotected portions of the magnetic, metallic body to a less magnetic material by exposing the magnetic metallic body having the one or more oxide barrier layers formed thereon to nitrogen. One or more protected portions of the magnetic, metallic body that are beneath the one or more oxide barrier layers are not converted to the less magnetic material. The method can be used to form one or more layers of a laminated electric motor.
Public/Granted literature
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