Accession Number:

ADA639999

Title:

Weak Bonding of Alumina Coatings on Ni(111)

Descriptive Note:

Journal article

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY AND BIOCHEMISTRY

Report Date:

2001-01-01

Pagination or Media Count:

23.0

Abstract:

We examine the structure and stability of an ultrathin ceramic film coating a metal substrate, specifically an alpha-alumina, Al2O3, film grown on fcc nickel. This metal-ceramic interface may play a role in materials failure of current combustion engine thermal barrier coatings TBCs. We characterize the 0 0 0 1 surface of alpha-Al2O3 and study the effect of increasing alumina film thickness on the aluminanickel interface using periodic slab density functional theory within the generalized gradient approximation.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Coatings, Colorants and Finishes
  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE