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Title: Energy conversion device and method of reducing friction therein

A device configured for converting energy includes a first surface, a second surface configured for moving with respect to the first surface during operation of the device, and a coating disposed on at least one of the first surface and the second surface. The coating includes a first layer of a ceramic alloy represented by the general formula AlMgB.sub.14--X, wherein X is present in an amount of from 0 to 70 parts by weight based on 100 parts by weight of the ceramic alloy and is a doping agent selected from the group of Group IV elements and borides and nitrides thereof, and a second layer disposed on the first layer and including carbon in a gradient concentration. The coating has a hardness of from 10 to 20 GPa and a coefficient of friction of less than or equal to 0.12.
Authors:
; ; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
1107338
Report Number(s):
8,550,792
12/493,885
DOE Contract Number:
FG36-06GO16054
Resource Type:
Patent
Research Org:
Eaton Corporation (Cleveland, OH)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION