Accession Number:

ADA064551

Title:

The Dissolution of Carbon Adlayers into the (110) Face of Nickel.

Descriptive Note:

Technical rept.,

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY N Y DEPT OF MATERIALS ENGINEERING

Personal Author(s):

Report Date:

1978-12-15

Pagination or Media Count:

20.0

Abstract:

The rate of carbon dissolution from adsorbed layers through the 110 face of a nickel crystal has been measured for a wide range of initial surface carbon concentrations over the temperature range from 600 to 913K. Auger electron spectrometry was used to measure the decrease in surface carbon concentration with time at temperature. For graphitic monolayers at T greater than 873K, dissolution is controlled by the transport of carbon from adsorbed layer to bulk. For dilute adlayers at T approximately 723K, dissolution is controlled by the bulk diffusion rate of carbon. At intermediate values of initial carbon concentration and temperture, quantitative treatment of the dissolution rate was not possible. Author

Subject Categories:

  • Ceramics, Refractories and Glass
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE