High Temperature Phase Transitions in (CH3)4NCl.

Abstract

The high temperature structural modifications of tetramethylammonium chloride (CH3)4NCl which exist between 298K and 607K were investigated by static and rotating frame proton spin-lattice relaxation times, T1 and T(1 rho), respectively. Polycrystalline samples treated in different manners were studied in order to understand the mechanism of the phase transition near 418K. Two possible processes are consistent with the observations.

Document Details

Document Type
Technical Report
Publication Date
Nov 29, 1972
Accession Number
AD0753822

Entities

People

  • John A. Ripmeester
  • Shmuel Albert

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chlorides
  • Critical Temperature
  • Glass Transition Temperature
  • High Temperature
  • Observation
  • Phase Transformations
  • Polycrystals
  • Relaxation Time
  • Transition Temperature
  • Transitions

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Polymer Science and Technology