Accession Number:

AD0768332

Title:

The Vapor Pressure and Heats of Vaporization of Nickel

Descriptive Note:

Technical rept. Sep 1970-Sep 1972

Corporate Author:

AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1973-05-01

Pagination or Media Count:

86.0

Abstract:

The Langmuir technique for determining vapor pressure was used to determine the vapor pressure of nickel between 1233 and 1683K. The vapor pressure data thus obtained was combined with other available data in the literature to obtain a best value for the heat of vaporization of nickel solid and liquid. Equations for the vapor pressure of nickel in these temperature ranges were also determined. The data in the literature used to determine heats of dissociation of the Ni0 and Ni2 gaseous molecules was corrected, and revised heats of dissociation of Ni2 and Ni0 gaseous molecules were obtained, as well as estimates for heat of vaporization of Ni0 solid. The literature on ionization cross sections useful in mass spectrometry was examined, and best values of the ionization cross sections of silver, lead, and nickel were determined.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE