Measuring Nanomechanical Properties of a Dynamic Contact Using an Indenter Probe and Quartz Crystal Microbalance

Abstract

A study of the contact mechanics of a probe tip interacting with a quartz crystal microbalance (QCM) has been performed, involving simultaneous measurements of normal load, displacement, and contact stiffness with changes in QCM resonant frequency. For metal and glass metal contacts in air, the QCM frequency shifts were observed to be positive, and directly proportional to the contact area as inferred from the contact stiffness. Interfacial characteristics of the probe tip contact (elasticity, contact size, and an estimate of the number of contacting asperities) were deduced by extending a prior model of single asperity contact to the case of multiple contacts. The extended model clarifies a number of seemingly disparate experimental results that have been reported in the literature.

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Document Details

Document Type
Technical Report
Publication Date
Dec 25, 2001
Accession Number
ADA465351

Entities

People

  • B. Borovsky
  • J. Krim
  • K. J. Wahl
  • S. A. Syed Asif

Organizations

  • North Carolina State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Waves
  • Elastic Properties
  • Frequency
  • Frequency Shift
  • Geometry
  • Materials
  • Measurement
  • Mechanics
  • Microbalances
  • Modulus Of Elasticity
  • New York
  • Physical Properties
  • Physics
  • Quartz Crystal Microbalances
  • Resonant Frequency
  • Shear Modulus
  • Shear Stresses

Readers

  • Electrochemical Surface Science
  • Nanoscale Plasmonic Nanotechnology
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference