MEASUREMENT OF RELAXATION TIMES OF CONCENTRATION FLUCTUATIONS BY THE ELECTRIC FIELD EFFECT ON CRITICAL OPALESCENCE.

Abstract

Relaxation times of concentration fluctuations in a binary mixture were investigated by scattered light measurements of the electric field effect on critical opalescence. Experimental relaxation times were measured for the system nitrobenzene-isooctane for scattering angles from 30 to 135 deg. and for temperature distances above the critical temperature from 0.60C to 0.01C. Over the range of angles and temperatures employed the results follow the Fixman modification of the Debye theory of relaxation times. The temperature dependence is non-classical with a value of the Fisher gamma approximately 1.2. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1967
Accession Number
AD0649343

Entities

People

  • C. C. Gravatt

Organizations

  • Cornell University Department of Chemistry and Chemical Biology

Tags

DTIC Thesaurus Topics

  • Critical Temperature
  • Electric Fields
  • Electromagnetic Scattering
  • Measurement
  • Nitrobenzenes
  • Relaxation Time
  • Scattering
  • Wave Phenomena

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Materials Science and Engineering.