Liquid Crystals for Nondestructive Evaluation

Abstract

This document presents a review of the use of liquid crystals in nondestructive evaluation and provides an introduction to the literature. The text begins with an historical background and then discusses the three classes of liquid crystals: the smectic, nematic, a cholesteric or twisted nematic. The properties of liquid crystals are summarized, including optical, thermal, mixtures of different compounds, and dynamic properties. Applications presented include temperature measurement and mapping, thermal mapping, surface flaw and leak detection, bond and composite testing, flaw testing with nematics, liquid crystals in fatigue, flow, and fracture tests, fluid flow measurements, acoustic detection and imaging, electronics components and assemblies, RF, microwave, and infrared imaging. The book closes with a bibliography of 84 entries.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1978
Accession Number
ADA129084

Entities

People

  • J. I. Ash

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Boundary Layer
  • Chemistry
  • Composite Materials
  • Detection
  • Fluid Flow
  • Heat Transfer
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Optical Properties
  • Optics
  • Semiconductors
  • Test And Evaluation

Readers

  • Business Analytics
  • Image Processing and Computer Vision.
  • Materials Science and Engineering.

Technology Areas

  • Microelectronics