Accession Number:

AD0269923

Title:

KINETICS OF INITIAL SINTERING OF VACUUM-REDUCED TITANIUM DIOXIDE

Descriptive Note:

Corporate Author:

NORTHWESTERN UNIV EVANSTON ILL TECHNOLOGICAL INST

Personal Author(s):

Report Date:

1961-12-01

Pagination or Media Count:

1.0

Abstract:

OBSERVATIONS OF SPHERE-TO-PLATE BONDING OF VACUUM-REDUCED, MONOCRYSTALLINE RUTILE WERE CARRIED OUT OVER THE TEMPERATURE RANGE 1200 TO 1275 C. The rate law governing the interfacial growth between sphere and plate indicat d that the predominate mechanism of material transport in this sintering process was volume diffusion. In the light of the reasonably satisfactory agreement between the oxygen self-diffusion coefficients calculated from the pr sent sintering data and those directly observed by Haul and Just utilizing an isotopic exchange technique, it was indicated that oxygen ion diffusion is the ratedetermining step in the sintering experiments described.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE