Non-Destructive Mechanical Characterisation of Mechanical Properties of Non-Homogeneous Nanostructured Coatings

Abstract

The experimental model permitting the detection of coating non-homogeneity is suggested for standard depth sensing indentation tests. It is assumed that the shear modulus varies arbitrarily with depth in a nanostructured coating. It is defined a notion of the stiffness as a function of radius of a contact zone for nanostructured coating coupled with homogeneous half-space, which makes it possible to classify the non-homogeneity of a coating. Using numerical examples, the influence of different laws of shear modulus variation in a coating on the stiffness is studied.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2000
Accession Number
ADP011826

Entities

People

  • J. -p. Celis
  • L. I. Krenev
  • N. A. Serova
  • S. M. Aizikovich

Organizations

  • Southern Federal University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Applied Mathematics
  • Coatings
  • Destructive Tests
  • Displacement
  • Elastic Properties
  • Experimental Data
  • Films
  • Homogeneity
  • Magnetic Recording Systems
  • Materials
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Numerical Analysis
  • Shear Modulus
  • Stiffness
  • Test Methods

Readers

  • Reinforced Composite Materials
  • Statistical inference.
  • Surface Coatings Technology.

Technology Areas

  • Microelectronics
  • Space