AN X-RAY DIFFRACTION STUDY OF LIQUID STRUCTURE

Abstract

A comprehensive program is presented for the study of liquid-state structure. Through the application of X-ray diffraction techniques, the pair distribution function may be obtained for a given state of a liquid system. This information is basic to the theoretical treatment of liquids by s atistical mechanical methods. Experimental apparatus was fabricated for carrying on diffraction experiments over an extensive range of pressure and temperature. A cylindrical beryllium cell, capable of withstanding several hundred psi, was used. The components were designed for the study of condensed low atomic weight elements at cryogenic temperatures. Control systems maintained the desired pressure and temperature within 0.5 psi and 0.2 C respectively. he theory for the interpretation of liquid diffraction data was critically reviewed. A synthesis of the important recent developments is presented in a general analytical scheme. Liquid nitrogen was studied at 100 psia and -193.5 C. The results compared favorably with earlier work r ported in the literature. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1961
Accession Number
AD0261731

Entities

People

  • C.j. Pings
  • H.h. Paalman

Organizations

  • Stanford University

Tags

DTIC Thesaurus Topics

  • Beryllium
  • Control Systems
  • Diffraction
  • Distribution Functions
  • Elements
  • Literature
  • Nitrogen
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Thermal Physics or Thermal Science.