Accession Number : ADA182211

Title :   A Pulsed Field Gradient Nuclear Magnetic Resonance Spectrometer for Direct Measurement of Ionic Diffusion in Solid Electrolytes.

Descriptive Note : Final rept. 1 Jan 85-31 Dec 86,

Corporate Author : NORTHWESTERN UNIV EVANSTON IL

Personal Author(s) : Whitmore,Donald H

PDF Url : ADA182211

Report Date : 24 Apr 1987

Pagination or Media Count : 4

Abstract : A pulsed field gradient nuclear magnetic resonance spectrometer was successfully constructed which is based on a superconducting magnet and has magic angle spinning capabilities. A dewar facility is an integral part of this system so as to permit investigation of ionic diffusion down to 77 K, along with a sample heating arrangement for diffusion measurements up to 300 C. This spectrometer has been employed in the measurements of protonic diffusion coefficients in beta -alumina solid electrolytes and cation, anion and self diffusion coefficients and amorphous polymeric electrolytes. Keywords: Nuclear Magnetic resonance; Spectrometer; Diffusion; Tons; Solid electrolytes.

Descriptors :   *SPECTROMETERS, AMORPHOUS MATERIALS, ELECTROLYTES, POLYMERS, ALUMINUM OXIDES, SOLID ELECTROLYTES, MEASUREMENT, DIFFUSION, SELF OPERATION, ANGLES, SPINNING(MOTION), FIELD THEORY, GRADIENTS, PULSES, SUPERCONDUCTORS, MAGNETS

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE